220 results on '"Sprick P"'
Search Results
2. Diagnostic leukapheresis reveals distinct phenotypes of NSCLC circulating tumor cells
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Rieckmann, Lisa-Marie, Spohn, Michael, Ruff, Lisa, Agorku, David, Becker, Lisa, Borchers, Alina, Krause, Jenny, O’Reilly, Roisin, Hille, Jurek, Velthaus-Rusik, Janna-Lisa, Beumer, Niklas, Günther, Armin, Willnow, Lena, Imbusch, Charles D., Iglauer, Peter, Simon, Ronald, Franzenburg, Sören, Winter, Hauke, Thomas, Michael, Bokemeyer, Carsten, Gagliani, Nicola, Krebs, Christian F., Sprick, Martin, Hardt, Olaf, Riethdorf, Sabine, Trumpp, Andreas, Stoecklein, Nikolas H., Peine, Sven, Rosenstiel, Philipp, Pantel, Klaus, Loges, Sonja, and Janning, Melanie
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- 2024
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3. Description of the immature stages and bionomics of Anthonomus (Anthonomus) brunnipennis Curtis, 1840 (Coleoptera, Curculionidae, Anthonomini)
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Rafał Gosik and Peter Sprick
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Biology (General) ,QH301-705.5 - Abstract
The developmental stages (larva, pupa) of Anthonomus brunnipennis are fully described for the first time. Despite great similarities of the adults of A. brunnipennis and A. rubi the differences between immature stages of both species could be demonstrated. Two different habitats of A. brunnipennis in Germany are described, and host plant data are critically reviewed. The only well-documented host plant of A. brunnipennis is Potentilla erecta.
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- 2024
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4. Diagnostic leukapheresis reveals distinct phenotypes of NSCLC circulating tumor cells
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Lisa-Marie Rieckmann, Michael Spohn, Lisa Ruff, David Agorku, Lisa Becker, Alina Borchers, Jenny Krause, Roisin O’Reilly, Jurek Hille, Janna-Lisa Velthaus-Rusik, Niklas Beumer, Armin Günther, Lena Willnow, Charles D. Imbusch, Peter Iglauer, Ronald Simon, Sören Franzenburg, Hauke Winter, Michael Thomas, Carsten Bokemeyer, Nicola Gagliani, Christian F. Krebs, Martin Sprick, Olaf Hardt, Sabine Riethdorf, Andreas Trumpp, Nikolas H. Stoecklein, Sven Peine, Philipp Rosenstiel, Klaus Pantel, Sonja Loges, and Melanie Janning
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Circulating tumor cells ,Non-small cell lung cancer ,Single cell RNA sequencing ,Intratumor heterogeneity ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Circulating tumor cells (CTCs) hold immense promise for unraveling tumor heterogeneity and understanding treatment resistance. However, conventional methods, especially in cancers like non-small cell lung cancer (NSCLC), often yield low CTC numbers, hindering comprehensive analyses. This study addresses this limitation by employing diagnostic leukapheresis (DLA) to cancer patients, enabling the screening of larger blood volumes. To leverage DLA’s full potential, this study introduces a novel approach for CTC enrichment from DLAs. Methods DLA was applied to six advanced stage NSCLC patients. For an unbiased CTC enrichment, a two-step approach based on negative depletion of hematopoietic cells was used. Single-cell (sc) whole-transcriptome sequencing was performed, and CTCs were identified based on gene signatures and inferred copy number variations. Results Remarkably, this innovative approach led to the identification of unprecedented 3,363 CTC transcriptomes. The extensive heterogeneity among CTCs was unveiled, highlighting distinct phenotypes related to the epithelial-mesenchymal transition (EMT) axis, stemness, immune responsiveness, and metabolism. Comparison with sc transcriptomes from primary NSCLC cells revealed that CTCs encapsulate the heterogeneity of their primary counterparts while maintaining unique CTC-specific phenotypes. Conclusions In conclusion, this study pioneers a transformative method for enriching CTCs from DLA, resulting in a substantial increase in CTC numbers. This allowed the creation of the first-ever single-cell whole transcriptome in-depth characterization of the heterogeneity of over 3,300 NSCLC-CTCs. The findings not only confirm the diagnostic value of CTCs in monitoring tumor heterogeneity but also propose a CTC-specific signature that can be exploited for targeted CTC-directed therapies in the future. This comprehensive approach signifies a major leap forward, positioning CTCs as a key player in advancing our understanding of cancer dynamics and paving the way for tailored therapeutic interventions.
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- 2024
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5. Are Schools in Prison Worth It? The Effects and Economic Returns of Prison Education
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Stickle, Ben and Schuster, Steven Sprick
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- 2023
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6. Augmented resting beat-to-beat blood pressure variability in patients with chronic kidney disease
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Sabino-Carvalho, Jeann L., Jeong, Jinhee, Sprick, Justin, DaCosta, Dana, Nardone, Massimo, and Park, Jeanie
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- 2023
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7. Protocol of the IntenSify‐Trial: An open‐label phase I trial of the CYP3A inhibitor cobicistat and the cytostatics gemcitabine and nab‐paclitaxel in patients with advanced stage or metastatic pancreatic ductal adenocarcinoma to evaluate the combination's pharmacokinetics, safety, and efficacy
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Nicolas Hohmann, Martin Ronald Sprick, Moritz Pohl, Azaz Ahmed, Jürgen Burhenne, Marietta Kirchner, Lucian Le Cornet, Markus Kratzmann, Jacek Hajda, Albrecht Stenzinger, Karen Steindorf, Stefan Delorme, Heinz‐Peter Schlemmer, Sabine Riethdorf, Ron vanSchaik, Klaus Pantel, Jens Siveke, Thomas Seufferlein, Dirk Jäger, Walter E. Haefeli, Andreas Trumpp, and Christoph Springfeld
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Therapeutics. Pharmacology ,RM1-950 ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Expression of CYP3A5 protein is a basal and acquired resistance mechanism of pancreatic ductal adenocarcinoma cells conferring protection against the CYP3A and CYP2C8 substrate paclitaxel through metabolic degradation. Inhibition of CYP3A isozymes restores the cells sensitivity to paclitaxel. The combination of gemcitabine and nab‐paclitaxel is an established regimen for the treatment of metastasized or locally advanced inoperable pancreatic cancer. Cobicistat is a CYP3A inhibitor developed for the pharmacoenhancement of protease inhibitors. The addition of cobicistat to gemcitabine and nab‐paclitaxel may increase the antitumor effect. We will conduct a phase I dose escalation trial with a classical 3 + 3 design to investigate the safety, tolerability, and pharmacokinetics (PKs) of gemcitabine, nab‐paclitaxel, and cobicistat. Although the doses of gemcitabine (1000 mg/m2) and cobicistat (150 mg) are fixed, three dose levels of nab‐paclitaxel (75, 100, and 125 mg/m2) will be explored to account for a potential PK drug interaction. After the dose escalation phase, we will set the recommended dose for expansion (RDE) and treat up to nine patients in an expansion part of the trial. The trial is registered under the following identifiers EudraCT‐Nr. 2019‐001439‐29, drks.de: DRKS00029409, and ct.gov: NCT05494866. Overcoming resistance to paclitaxel by CYP3A5 inhibition may lead to an increased efficacy of the gemcitabine and nab‐paclitaxel regimen. Safety, efficacy, PK, and RDE data need to be acquired before investigating this combination in a large‐scale clinical study.
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- 2023
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8. Effect of substituting non-polar chains with polar chains on the structural dynamics of small organic molecule and polymer semiconductors
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Guilbert, Anne A. Y., Parr, Zachary S., Kreouzis, Theo, Woods, Duncan J., Sprick, Reiner S., Abrahams, Isaac, Nielsen, Christian B., and Zbiri, Mohamed
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Condensed Matter - Materials Science ,Condensed Matter - Soft Condensed Matter - Abstract
The processability and optoelectronic properties of organic semiconductors can be tuned and manipulated via chemical design. The substitution of the alkyl side chains by oligoethers has recently been successful for applications such as bioelectronic sensors and photocatalytic water-splitting. The carbon-oxygen bond in oligoethers is likely to render the system softer and more prone to dynamical disorder that can be detrimental to charge transport for example. We use neutron spectroscopy, X-Ray diffraction (XRD), differential scanning calorimetry (DSC) and polarized optical microscopy to study the effect of the substitution of n-hexyl (Hex) by triethylene glycol (TEG) on the structural dynamics of two organic semiconductors: a phenylene-bithiophene-phenylene (PTTP) molecule and a fluorene-co-dibenzothiophene (FS) polymer. Counterintuitively, inelastic neutron scattering (INS) reveals a softening of the modes of PTTP and FS with Hex side chains, pointing towards an increased dynamical disorder in these systems. However, T-dependent X-Ray and neutron diffraction, INS and DSC evidence an extra reversible transition close to room temperature (RT) for PTTP with TEG side chains. The observed transition, not accompanied by a change in birefringence, can also be observed by quasi-elastic neutron scattering. A fastening of the TEG side chains dynamics is observed in the case of PTTP and not FS. We therefore assign this transition to the melt of the TEG side chains which are promoting dynamical order at RT, but if crystallising, may introduce an extra reversible structural transition above RT leading to thermal instabilities. A deeper understanding of side chain polarity and structural dynamics can help guide materials design and navigate the intricate balance between electronic charge transport and aqueous swelling, sought for a number of emerging organic electronic and bioelectronic applications.
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- 2021
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9. Cerebrovascular carbon dioxide reactivity is intact in chronic kidney disease
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Justin D. Sprick, Jeann Sabino‐Carvalho, Elsa Mekonnen, Melissa McGranahan, Matias Zanuzzi, Dana DaCosta, and Jeanie Park
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cerebral blood flow ,cerebrovascular disease ,renal disease ,Physiology ,QP1-981 - Abstract
Abstract Chronic kidney disease (CKD) is characterized by an elevated risk for cerebrovascular disease including stroke. One mechanism that may contribute to this heightened risk is an impairment in cerebrovascular carbon dioxide reactivity (CVR). We compared CVR between CKD patients stages III–IV and controls (CON) without CKD but matched for hypertension and diabetes status. CVR was measured via 5% CO2 inhalation followed by voluntary hyperventilation in 14 CKD and 11 CON participants while mean arterial pressure, end‐tidal carbon dioxide, and middle cerebral artery blood velocity (MCAv) were measured continuously. CVR was quantified as the linear relationship between etCO2 and MCAv. We observed no difference in CVR between groups. Hypercapnic CVR: CKD = 1.2 ± 0.9 cm/s/mm Hg, CON = 1.3 ± 0.8 cm/s/mm Hg, hypocapnic CVR: CKD = 1.3 ± 0.9 cm/s/mm Hg, CON = 1.5 ± 0.7 cm/s/mm Hg, integrated CVR: CKD = 1.5 ± 1.1 cm/s/mm Hg, CON = 1.7 ± 0.8 cm/s/mm Hg, p ≥ 0.48. Unexpectedly, CVR was inversely related to estimated glomerular filtration rate in CKD (R2 = 0.37, p = 0.02). We report that CVR remains intact in CKD and is inversely related to eGFR. These findings suggest that other mechanisms beyond CVR contribute to the elevated stroke risk observed in CKD.
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- 2024
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10. Impact of chemical structure on the dynamics of mass transfer of water in conjugated microporous polymers: A neutron spectroscopy study
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Guilbert, Anne A. Y., Bai, Yang, Aitchison, Catherine M., Sprick, Reiner S., and Zbiri, Mohamed
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Condensed Matter - Materials Science ,Condensed Matter - Soft Condensed Matter - Abstract
Hydrogen fuel can contribute as a masterpiece in conceiving a robust carbon-free economic puzzle if cleaner methods to produce hydrogen become technically efficient and economically viable. Organic photocatalytic materials such as conjugated microporous materials (CMPs) are potential attractive candidates for water splitting as their energy levels and optical bandgap as well as porosity are tunable through chemical synthesis. The performances of CMPs depend also on the mass transfer of reactants, intermediates and products. Here, we study the mass transfer of water (H2O and D2O), and of triethylamine used as a hole scavenger for hydrogen evolution, by means of neutron spectroscopy. We find that the stiffness of the nodes of the CMPs is correlated with an increase in trapped water, reflected by motions too slow to be quantified by quasi-elastic neutron scattering (QENS). Our study highlights that the addition of the polar sulfone group results in additional interactions between water and the CMP, as evidenced by inelastic neutron scattering (INS), leading to changes in the translational diffusion of water, as determined from the QENS measurements. No changes in triethylamine motions could be observed within CMPs from the present investigations.
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- 2020
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11. Probing dynamics of water mass transfer in organic porous photocatalyst water-splitting materials by neutron spectroscopy
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Zbiri, Mohamed, Aitchison, Catherine M., Sprick, Reiner S., Cooper, Andrew I., and Guilbert, Anne A. Y.
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Condensed Matter - Materials Science ,Condensed Matter - Soft Condensed Matter - Abstract
The quest for efficient and economically accessible cleaner methods to develop sustainable carbon-free energy sources induced a keen interest in the production of hydrogen fuel. This can be achieved via the water-splitting process exploiting solar energy but requiring the use of adequate photocatalysts. Covalent triazine-based frameworks (CTFs) are target photocatalysts for water-splitting. Both electronic and structural characteristics of CTFs, optical bandgaps and porosity, are directly relevant for water-splitting. These can be engineered through chemical design. Porosity can be beneficial to water-splitting by providing larger surface area for the catalytic reactions. However, porosity can also affect both charge transport within the photocatalyst and mass transfer of both reactants and products, thus impacting the overall kinetics of the reaction. We focus on the link between chemical design and water (reactants) mass transfer, playing a key role in the water uptake process and the subsequent hydrogen generation. We use neutron spectroscopy to study water mass transfer in two porous CTFs, CTF-CN and CTF-2, that differ in the polarity of their struts. Quasi-elastic neutron scattering (QENS) is used to quantify the amount of bound water and the translational diffusion of water. Inelastic neutron scattering measurements complement QENS and provides insights into the softness of the CTF structures and the changes in librational degrees of freedom of water in CTFs. We show that CTF-CN exhibits smaller surface area and water uptake due to a softer structure than CTF-2. The current study leads to new insights into the structure-dynamics-property relationship of CTF photo-catalysts that pave the road for a better understanding of the guest-host interaction at the basis of water splitting applications.
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- 2020
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12. Discipline in the Secondary Classroom: Encouraging Responsible Behavior and Enhancing Motivation, Fourth Edition. Safe & Civil Schools
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Sprick, Randall S., Sprick, Jessica, Coughlin, Cristy, Edwards, Jacob, Sprick, Randall S., Sprick, Jessica, Coughlin, Cristy, and Edwards, Jacob
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"Discipline in the Secondary Classroom: Encouraging Responsible Behavior and Enhancing Motivation, 4th Edition" is an insightful treatment of the always-challenging topic of discipline in the high school classroom. The newly revised edition of the book incorporates a renewed focus on classroom management plans, handling the use and misuse of electronic devices in the classroom, and adapting instruction for a virtual classroom setting. "Discipline in the Secondary Classroom" discusses other issues crucial to the successful management of secondary classrooms and include: (1) How behavior is learned; (2) Managing student work; (3) Managing the use of technology and electronic devices in the classroom; (4) Active engagement strategies for teacher-directed instruction (both the physical classroom and the virtual classroom); (5) Corrective strategies for misbehavior and inattention; and (6) Maintaining a Cycle of Continuous Improvement to be a better teacher each year. Perfect for grade 9 to 12 classroom teachers and educational administrators--including principals, assistant principals, staff development professionals, and consultants--"Discipline in the Secondary Classroom" constitutes an indispensable resource for anyone aiming to achieve a civil, safe, and fair classroom environment. [For the third edition, see ED604770.]
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- 2021
13. Manipulative-Based Instructional Sequences in Mathematics for Students with Disabilities
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Bouck, Emily C., Anderson, Rubia D., Long, Holly, and Sprick, Jessica
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Manipulative-based instructional sequences--including both concrete and virtual manipulative instructional sequences--are evidence-based or research-based mathematical interventions for students with disabilities. However, as options for manipulative-based instructional sequences increase, educators need support in deciding the best approach. In this manuscript, we provide practical tips for educators to make decisions about selecting and implementing manipulative-based instructional sequences for students with disabilities. We present and discuss the following steps educators should take when preparing to use a manipulative-based instructional sequence: (a) determine resources, (b) know the student, (c) identify the targeted mathematics, (d) evaluate time constraints, and (c) decide upon the ultimate goal of learning.
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- 2022
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14. Discipline in the Secondary Classroom: Encouraging Responsible Behavior and Enhancing Motivation. Grades 9-12. Fourth Edition. Safe & Civil Schools
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Sprick, Randall, Sprick, Jessica, Coughlin, Cristy, Edwards, Jacob, Sprick, Randall, Sprick, Jessica, Coughlin, Cristy, and Edwards, Jacob
- Abstract
Perfect for grade 9 to 12 classroom teachers and educational administrators--including principals, assistant principals, staff development professionals, and consultants--"Discipline in the Secondary Classroom" constitutes an indispensable resource for anyone aiming to achieve a civil, safe, and fair classroom environment. Student misbehavior has always been the leading cause of teacher frustration. "Discipline in the Secondary Classroom" empowers teachers to improve student behavior and motivation by creating classrooms where all students can thrive. By reducing misbehavior, teachers focus their time and energy on instruction and student success. Teachers will create a positive classroom community where they help students develop social-emotional skills for life. Educators discover practical strategies to motivate students to engage in responsible behavior, build positive relationships, manage their work, understand acceptable uses of electronic devices in the classroom, and engage with instruction. For students who struggle in school related to experiences of trauma, poverty, systemic racism, generational difficulties with the school system, or a disability, purely punitive and reactive approaches will not encourage positive behavioral changes. Teachers will learn proactive strategies to structure for success, reduce misbehavior before it happens, focus on positive behavior and student strengths, and use an instructional approach to correct behavioral missteps. The research-based CHAMPS approach at the heart of "Discipline in the Secondary Classroom" will help teachers create highly successful classroom management plans that will: (1) Include high expectations for all students' success; (2) Build positive relationships with students; (3) Create consistent, predictable classroom routines; (4) Teach students how to behave successfully; (5) Observe and monitor student behavior and data; (6) Provide frequent positive feedback; and (7) Correct misbehavior in a calm, consistent, and fluent manner.
- Published
- 2021
15. CHAMPS: A Proactive & Positive Approach to Classroom Management. Third Edition. Safe & Civil Schools
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Sprick, Jessica, Sprick, Randy, Edwards, Jacob, Coughlin, Cristy, Sprick, Jessica, Sprick, Randy, Edwards, Jacob, and Coughlin, Cristy
- Abstract
Educators discover practical strategies to motivate students to engage in responsible behavior, build positive relationships, manage their work, understand acceptable uses of electronic devices in the classroom, and engage with instruction. For students who struggle in school related to experiences of trauma, poverty, systemic racism, generational difficulties with the school system, or a disability, purely punitive and reactive approaches will not encourage positive behavioral changes. Teachers will learn proactive strategies to structure for success, reduce misbehavior before it happens, focus on positive behavior and student strengths, and use an instructional approach to correct behavioral missteps. CHAMPS teachers guide students toward a successful school career and increase their chances for success in work and in life. The research-based CHAMPS approach will help teachers create highly successful classroom management plans that will: (1) Include high expectations for all students' success; (2) Build positive relationships with students; (3) Create consistent, predictable classroom routines; (4) Teach students how to behave successfully; (5) Observe and monitor student behavior and data; (6) Provide frequent positive feedback; and (7) Correct misbehavior in a calm, consistent, and fluent manner. CHAMPS and Discipline the Secondary Classroom are companion processes to improve student behavior within the classroom. CHAMPS is designed for K-8 Classrooms and Discipline in the Secondary Classroom is designed for 9-12 classrooms. CHAMPS is organized to more closely follow the STOIC framework as it guides you through assessing your and your students' needs and developing your Classroom Management Plan. New material covers: (1) How the CHAMPS approach aligns with initiatives such as multi-tiered systems of support for behavior (MTSS-B), social-emotional learning priorities, and trauma-informed practice; (2) Acknowledging and appreciating diversity and improving equity, inclusion, and access by reflecting on existing regularities in discipline planning and identifying better practices that help all students thrive and achieve their full potential; (3) Centering positive relationships at the foundation of your management approach by using strategies to consciously build and maintain relational trust with students and families; (4) The importance of maintaining and communicating high expectations for all students, and strategies for doing so; (5) Procedures for managing partner and cooperative group work and student technology use; and (6) Implementing behavior management practices in the virtual learning environment. [For the second edition, see ED604816.]
- Published
- 2021
16. Das paradisziplinäre Paradigma. Anmerkungen zu einem Papier des Wissenschaftsrates
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Benjamin Sprick
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wissenschaftstheorie ,thomas s. kuhn ,hochschulpolitik ,university policy ,para-disciplinarity ,paradisziplinarität ,artistic music research ,künstlerische musikforschung ,theory of science ,bologna process ,bologna-prozess ,Music and books on Music - Abstract
Mit Blick auf eine zu erwartende Ausweitung von Programmen künstlerischer Musikforschung an deutschen Musikhochschulen befasst sich der Artikel mit einer kritischen Re-Lektüre der Empfehlungen zur postgradualen Qualifikationsphase an Kunst- und Musikhochschulen des Wissenschaftsrates (2021), die mit Aspekten aus Thomas S. Kuhns Buch Die Struktur wissenschaftlicher Revolutionen enggeführt wird. Auf dieser Grundlage wird zu einer mehr oder weniger spekulativ gehaltenen Skizze von Zukunftsszenarien einer musiktheoretisch inspirierten künstlerischen Musikforschung angesetzt. With a view to the expected expansion of artistic music research programs at German music universities, the article deals with a critical re-reading of the recommendations on the postgraduate qualification phase at art and music universities of the German Council of Science and Humanities (2021), which is closely linked to aspects of Thomas S. Kuhn’s book The Structure of Scientific Revolutions. On this basis, a more or less speculative sketch of future scenarios for artistic music research inspired by music theory is presented.
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- 2022
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17. First Step Next: An Updated Version of the First Step to Success Early Intervention Program
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Walker, Hill, Feil, Edward G., Frey, Andy, Small, Jason, Seeley, John, Golly, Annemieke, Crosby, Shantel, Lee, Jon, Forness, Steve, Sprick, Marilyn, Coughlin, Cristy, and Stiller, Brianna
- Abstract
This manuscript describes a major revision and update of the First Step to Success Early Intervention Program, now called First Step Next. The original First Step Program was published in 1997 and the revised, updated version was published in 2015 (Walker et al.). First Step Next is a collaborative, Tier II school- and family-supported early intervention that teaches school success skills to give students the best start possible in their school career. This manuscript covers five major topics: (1) program history, (2) rationale and procedures for the First Step revision, (3) First Step Next implementation, (4) maintenance and follow up procedures, and (5) current and future research on First Step Next.
- Published
- 2018
18. Morphology of immature stages, biology, and systematic position of the Violet seed weevil, Orobitis cyanea (Linnaeus, 1758) (Curculionidae, Conoderinae, Orobitiditae, Orobitidini)
- Author
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Rafał Gosik and Peter Sprick
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Zoology ,QL1-991 - Abstract
The mature larva of the weevil species Orobitis cyanea (Linnaeus, 1758), one of only two Palaearctic members of the supertribe Orobitiditae, is re-described, while the pupa is described for the first time. The biology of this species was studied at two sites in Germany. It was reared from seed capsules of Viola canina L. (Violaceae), and feeding holes were observed on V. riviniana Rchb. Adults of Orobitis cyanea and O. nigrina Reitter, 1885, specialists of Viola, show a well-developed escape mechanism, to which contribute a smooth surface, a rounded, nearly spherical body shape, and a seed-imitating thanatosis behaviour. The molytine weevil Leiosoma cribrum (Gyllenhal, 1834), the only other known weevil specialist of Viola in Europe, has a smooth surface, also, and is the most spherical species of the genus. The unique characters of the larva and pupa of Orobitis cyanea are discussed in regard to the systematic position of this taxon.
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- 2022
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19. Early-Stage Interventions: Behavior Strategies for Every Teacher. Safe & Civil Schools
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Sprick, Randy, Sprick, Jessica, Sprick, Marilyn, Coughlin, Cristy, Sprick, Randy, Sprick, Jessica, Sprick, Marilyn, and Coughlin, Cristy
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"Early-Stage Interventions: Behavior Strategies for Every Teacher" offers a set of simple, teacher-friendly interventions to use as a starting place in addressing an individual student's chronic misbehavior-- disrespect, noncompliance, lack of motivation, bullying, aggression, and more. Though every teacher will encounter students who display challenging behavior, many feel unprepared to effectively deal with such behavior in the classroom. The first section of "Early-Stage Interventions: Behavior Strategies for Every Teacher" focuses on general classroom management and academic support. Academic difficulties and classroom climate may contribute to behavior problems and should be investigated before any further interventions take place. The second section presents a continuum of early-stage interventions that are easy for a classroom teacher to plan and implement. The teacher starts with the simplest one first, and continues on only when the student's behavior doesn't improve. Step-by-step directions guide teacher through each of these interventions: (1) Planned Discussion; (2) Correction Planning; (3) Increasing Positive Interactions; (4) Data Collection and Debriefing; (5) Goal Setting; (6) Building a Supportive Relationship; and (7) Function-Based Intervention. When teachers address misbehavior in the classroom in its early stages, a school's more intensive Tier 2 and 3 resources can be focused on intervening with more intractable behavior problems.
- Published
- 2020
20. Attendance and Specific Learning Disability Identification: A Survey of Practicing School Psychologists
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Sprick, Jessica T., Bouck, Emily C., Berg, Tricia R., and Coughlin, Cristy
- Abstract
According to Individuals with Disabilities Education Act, lack of appropriate instruction is a possible exclusionary factor that must be considered during Specific Learning Disability (SLD) identification. Student attendance is a major predictor of long-term academic success or failure and may relate to whether a student had access to appropriate instruction; however, it is unclear whether and how attendance is considered during SLD identification. This survey of practicing school psychologists provides an exploration of how school psychologists consider and address student absenteeism in the SLD identification process. Researchers found considerable variability across school psychologists and eligibility teams across a multitude of dimensions, including whether and how attendance is considered exclusionary and whether respondents perceived the need for more clear guidance from their district and/or state.
- Published
- 2020
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21. Reconstructed covalent organic frameworks
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Zhang, Weiwei, Chen, Linjiang, Dai, Sheng, Zhao, Chengxi, Ma, Cheng, Wei, Lei, Zhu, Minghui, Chong, Samantha Y., Yang, Haofan, Liu, Lunjie, Bai, Yang, Yu, Miaojie, Xu, Yongjie, Zhu, Xiao-Wei, Zhu, Qiang, An, Shuhao, Sprick, Reiner Sebastian, Little, Marc A., Wu, Xiaofeng, Jiang, Shan, Wu, Yongzhen, Zhang, Yue-Biao, Tian, He, Zhu, Wei-Hong, and Cooper, Andrew I.
- Published
- 2022
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22. Exercise modulates sympathetic and vascular function in chronic kidney disease
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Jinhee Jeong, Justin D. Sprick, Dana R. DaCosta, Kevin Mammino, Joe R. Nocera, and Jeanie Park
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Clinical trials ,Neuroscience ,Medicine - Abstract
BACKGROUND Chronic kidney disease (CKD) is characterized by chronic overactivation of the sympathetic nervous system (SNS), which increases the risk of cardiovascular (CV) disease and mortality. SNS overactivity increases CV risk by multiple mechanisms, including vascular stiffness. We tested the hypothesis that aerobic exercise training would reduce resting SNS activity and vascular stiffness in patients with CKD.METHODS In this randomized controlled trial, sedentary older adults with CKD underwent 12 weeks of exercise (cycling, n = 32) or stretching (an active control group, n = 26). Exercise and stretching interventions were performed 20–45 minutes/session at 3 days/week and were matched for duration. Primary endpoints include resting muscle sympathetic nerve activity (MSNA) via microneurography, arterial stiffness by central pulse wave velocity (PWV), and aortic wave reflection by augmentation index (AIx).RESULTS There was a significant group × time interaction in MSNA and AIx with no change in the exercise group but with an increase in the stretching group after 12 weeks. The magnitude of change in MSNA was inversely associated with baseline MSNA in the exercise group. There was no change in PWV in either group over the study period.CONCLUSION Our data demonstrate that 12 weeks of cycling exercise has beneficial neurovascular effects in patients with CKD. Specifically, exercise training safely and effectively ameliorated the increase in MSNA and AIx observed over time in the control group. This sympathoinhibitory effect of exercise training showed greater magnitude in patients with CKD with higher resting MSNA.TRIAL REGISTRATION ClinicalTrials.gov, NCT02947750.FUNDING NIH R01HL135183; NIH R61AT10457; NIH NCATS KL2TR002381; and NIH T32 DK00756; NIH F32HL147547; and VA Merit I01CX001065.
- Published
- 2023
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23. Pentosan Polysulfate Sodium-Associated Pigmentary Retinopathy: Risk Factors and Fundus Findings
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Leung EH, Sharma S, Levie-Sprick A, Lee GD, Cho H, and Mukkamala SK
- Subjects
pentosan polysulfate sodium ,pigmentary retinopathy ,pharmacotoxicity ,inherited retinal dystrophies ,genetics ,Ophthalmology ,RE1-994 - Abstract
Ella H Leung,1 Sahana Sharma,2 Ana Levie-Sprick,1 Gregory D Lee,1 Hyung Cho,1 Krishna Mukkamala1 1Georgia Retina, Atlanta, GA, USA; 2Vanderbilt University, Nashville, TN, USACorrespondence: Ella H LeungGeorgia Retina, 833 Campbell Hill St NW, Suite 300, Marietta, GA, 30060, USATel +1-770-218-1888Email eleung@garetina.comPurpose: To evaluate the risk factors and fundus findings of patients with potential PPS-associated retinopathy.Patients and Methods: A retrospective chart review was performed of patients exposed to PPS who had a dilated fundus examination at a large retina-only practice from 2018– 21. Multimodal images were evaluated by masked reviewers.Results: A total of 148 patients were included, of whom 33 (22%) had PPS-associated retinopathy, and 115 (78%) did not. The mean age was 60.3 years old, and the mean follow-up was 11.8 months. The PPS-associated retinopathy group had higher mean cumulative doses of PPS (1600g± 849 vs 864g± 852, P < 0.0001, Mann–Whitney test) and longer duration of PPS use (13.6 years vs 7.48, P < 0.0001). There was no statistically significant difference based on a history of kidney or liver disease or the dosage per day for the weight, body mass index, body surface area, or lean body weight. Of the patients with PPS-associated retinopathy whose genetic results were available, 15 of 16 (93%) were heterozygous for variants of uncertain significance.Conclusion: A longer duration of PPS use and higher cumulative dosage of PPS were associated with an increased risk of developing PPS-associated pigmentary retinopathy. The role of genetic mutations in patients exposed to PPS is still to be determined.Keywords: pentosan polysulfate sodium, pigmentary retinopathy, pharmacotoxicity, inherited retinal dystrophies, genetics
- Published
- 2021
24. MRT-tracked TPS (transcranial pulse stimulation) – a new method of brain stimulation to ameliorate deficits in patients with Alzheimer’s disease
- Author
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Ulrich Sprick and Martin Köhne
- Subjects
Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Published
- 2023
- Full Text
- View/download PDF
25. Dynamic cerebral autoregulation is intact in chronic kidney disease
- Author
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Justin D. Sprick, Toure Jones, Jinhee Jeong, Dana DaCosta, and Jeanie Park
- Subjects
cerebral blood flow ,cerebrovascular disease ,renal disease ,transfer function analysis ,Physiology ,QP1-981 - Abstract
Abstract Chronic Kidney Disease (CKD) patients experience an elevated risk for cerebrovascular disease. One factor that may contribute to this heightened risk is an impairment in dynamic cerebral autoregulation, the mechanism by which cerebral vessels modulate cerebral blood flow during fluctuations in arterial pressure. We hypothesized that dynamic cerebral autoregulation would be impaired in CKD. To test this hypothesis, we compared dynamic cerebral autoregulation between CKD patients stages III‐IV and matched controls (CON) without CKD. Fifteen patients with CKD and 20 CON participants performed 2, 5‐minute bouts of repeated sit‐to‐stand maneuvers at 0.05 Hz and 0.10 Hz while mean arterial pressure (MAP, via finger photoplethysmography) and middle cerebral artery blood velocity (MCAv, via transcranial Doppler ultrasound) were measured continuously. Cerebral autoregulation was characterized by performing a transfer function analysis (TFA) on the MAP‐MCAv relationship to derive coherence, phase, gain, and normalized gain (nGain). We observed no group differences in any of the TFA metrics during the repeated sit‐to‐stand maneuvers. During the 0.05 Hz maneuver, Coherence: CKD = 0.83 ± 0.13, CON = 0.85 ± 0.12, Phase (radians): CKD = 1.39 ± 0.41, CON = 1.25 ± 0.30, Gain (cm/s/mmHg): CKD = 0.69 ± 0.20, CON = 0.71 ± 0.22, nGain (%/mmHg): CKD = 1.26 ± 0.35, CON = 1.20 ± 0.28, p ≥ 0.24. During the 0.10 Hz maneuver (N = 6 CKD and N = 12 CON), Coherence: CKD = 0.61 ± 0.10, CON = 0.67 ± 0.11, Phase (radians): CKD = 1.43 ± 0.26, CON = 1.30 ± 0.23, Gain (cm/s/mmHg): CKD = 0.75 ± 0.15, CON = 0.84 ± 0.26, nGain (%/mmHg): CKD = 1.50 ± 0.28, CON = 1.29 ± 0.24, p ≥ 0.12. Contrary to our hypothesis, dynamic cerebral autoregulation remains intact in CKD stages III‐IV. These findings suggest that other mechanisms likely contribute to the increased cerebrovascular disease burden experienced by this population. Future work should determine if other cerebrovascular regulatory mechanisms are impaired and related to cerebrovascular disease risk in CKD.
- Published
- 2022
- Full Text
- View/download PDF
26. Musiktheorie und Zukunft : Perspektiven einer polyphonen Musikgeschichte
- Author
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Hameister, Anne, Sprick, Jan Philipp, Hameister, Anne, and Sprick, Jan Philipp
- Published
- 2023
27. Reprogramming bacterial protein organelles as a nanoreactor for hydrogen production
- Author
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Tianpei Li, Qiuyao Jiang, Jiafeng Huang, Catherine M. Aitchison, Fang Huang, Mengru Yang, Gregory F. Dykes, Hai-Lun He, Qiang Wang, Reiner Sebastian Sprick, Andrew I. Cooper, and Lu-Ning Liu
- Subjects
Science - Abstract
The extreme oxygen sensitive character of hydrogenases is a longstanding issue for hydrogen production in bacteria. Here, the authors build carboxysome shells in E. coli and incorporate catalytically active hydrogenases and functional partners within the empty shell for the production of hydrogen.
- Published
- 2020
- Full Text
- View/download PDF
28. Novel Non-integrating DNA Nano-S/MAR Vectors Restore Gene Function in Isogenic Patient-Derived Pancreatic Tumor Models
- Author
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Matthias Bozza, Edward W. Green, Elisa Espinet, Alice De Roia, Corinna Klein, Vanessa Vogel, Rienk Offringa, James A. Williams, Martin Sprick, and Richard P. Harbottle
- Subjects
nano-DNA vector ,S/MAR ,antibiotic-free ,non-integrating ,isogenic cells ,tumor models ,Genetics ,QH426-470 ,Cytology ,QH573-671 - Abstract
We describe herein non-integrating minimally sized nano-S/MAR DNA vectors, which can be used to genetically modify dividing cells in place of integrating vectors. They represent a unique genetic tool, which avoids vector-mediated damage. Previous work has shown that DNA vectors comprising a mammalian S/MAR element can provide persistent mitotic stability over hundreds of cell divisions, resisting epigenetic silencing and thereby allowing sustained transgene expression. The composition of the original S/MAR vectors does present some inherent limitations that can provoke cellular toxicity. Herein, we present a new system, the nano-S/MAR, which drives higher transgene expression and has improved efficiency of establishment, due to the minimal impact on cellular processes and perturbation of the endogenous transcriptome. We show that these features enable the hitherto challenging genetic modification of patient-derived cells to stably restore the tumor suppressor gene SMAD4 to a patient-derived SMAD4 knockout pancreatic cancer line. Nano-S/MAR modification does not alter the molecular or phenotypic integrity of the patient-derived cells in cell culture and xenograft mouse models. In conclusion, we show that these DNA vectors can be used to persistently modify a range of cells, providing sustained transgene expression while avoiding the risks of insertional mutagenesis and other vector-mediated toxicity.
- Published
- 2020
- Full Text
- View/download PDF
29. Developmental Biology and Identification of a Garden Pest, Otiorhynchus (Podoropelmus) smreczynskii Cmoluch, 1968 (Coleoptera, Curculionidae, Entiminae), with Comments on Its Origin and Distribution
- Author
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Rafał Gosik, Peter Sprick, Małgorzata Wrzesień, Agata Dzyr, Oliver Krstić, and Ivo Toševski
- Subjects
weevil ,Curculionoidea ,Entiminae ,Otiorhynchus smreczynskii ,O. rotundus ,COI ,Science - Abstract
The mature larva and pupa of Otiorhynchus smreczynskii are described and illustrated with complete chaetotaxy for the first time. Five larval instars and the factors for larval growth are determined, and the larval development of this species is comprehensively described. In order to confirm species affiliation, selected larvae were subjected to genetic analysis (mtCOI). Host plants and unique feeding signs of some Entiminae species are presented, and all available data on development are documented and interpreted. Additionally, the morphometry of 78 specimens (48 of O. smreczynskii and 30 of O. rotundus) was examined in order to verify the usefulness of morphological features in distinguishing both species. The female genitalia of both species are illustrated, described and compared with each other for the first time. Finally, the updated distribution of O. smreczynskii is given, and a possible origin of O. smreczynskii and O. rotundus is proposed.
- Published
- 2023
- Full Text
- View/download PDF
30. School Leader's Guide to Tackling Attendance Challenges
- Author
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ASCD, Sprick, Jessica, Sprick, Randy, Sprick, Jessica, Sprick, Randy, and ASCD
- Abstract
"For students to be successful in school, they first have to be in school." With that simple statement, Jessica Sprick and Randy Sprick launch a compelling case for prioritizing student attendance. This comprehensive guide provides school and district-level administrators and teams with the background information, strategies, and tools needed to implement a multitiered approach to improving attendance and preventing chronic absence. The authors use the results of their work in schools throughout the United States to dispel the myth that educators have little control over student attendance and provide success stories from elementary and secondary schools that have reversed longstanding patterns of absenteeism. Citing extensive research, Sprick and Sprick share details about the shocking prevalence of chronic absence in U.S. schools and its effects on students, teachers, families, and the school community. They explain how to replace punitive approaches to absenteeism with effective methods that begin with universal supports and continue through Tier 2 and Tier 3 interventions for students with more persistent problems. Specifically, they explain how to: (1) Build an effective school team to address absenteeism; (2) Create systems to collect accurate data and set priorities; (3) Develop an attendance initiative that generates student enthusiasm as well as staff, parent, and community support; and (4) Design and implement strategies that are tailored to specific schoolwide concerns and demographics that reach all students. [This book was co-published by Ancora Publishing.]
- Published
- 2018
31. A Proposal to Strengthen Family and Community Engagement within the Elementary and Secondary Education Act: An Implementation Guide
- Author
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Appleseed, Sprick, Briana, and Rich, Malcolm
- Abstract
This guide is intended for school leaders who want to create partnerships with families and community members in their schools. There are many reasons to want to increase family and community engagement. First and foremost, family and community engagement helps students achieve. In addition, creating partnerships allows for the pooling of resources so the school has access to more services, creates a stronger community, and improves school practices. This guide is directed at school leaders because, though any parent, member of the school community, or community organization can initiate a partnership, principals play a key role in the success of school partnerships. Principals have the power to set the tone of the school; if a principal is not invested in engaging families and the community, the teachers and school staff will not exert much effort to do so. Any major school culture shift will have trouble succeeding without the support of the school administration, and effective partnerships require a committed school culture. Partnerships involve more than just inviting families and community members to participate at the school. They require sharing power and responsibility, not to mention resources, to achieve a common goal: the academic achievement and developmental growth of students. (Contains 22 footnotes and 6 resources.)
- Published
- 2010
32. A mobile robotic chemist
- Author
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Burger, Benjamin, Maffettone, Phillip M., Gusev, Vladimir V., Aitchison, Catherine M., Bai, Yang, Wang, Xiaoyan, Li, Xiaobo, Alston, Ben M., Li, Buyi, Clowes, Rob, Rankin, Nicola, Harris, Brandon, Sprick, Reiner Sebastian, and Cooper, Andrew I.
- Published
- 2020
- Full Text
- View/download PDF
33. The Virtual-Representational-Abstract Framework to Support Students with Disabilities in Mathematics
- Author
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Bouck, Emily C. and Sprick, Jessica
- Abstract
The virtual-representational-abstract (VRA) framework adapts an evidence-based practice, the concrete-representational-abstract (CRA) framework, while trying to meet students and teachers where they are in terms of technology interest and use in education. This article discusses the VRA framework and the advantages of virtual manipulatives, and explains how a teacher can implement the VRA framework. Although more research is needed on the VRA framework, the VRA provides teachers an option as an instructional practice or intervention to support students struggling in mathematics.
- Published
- 2019
- Full Text
- View/download PDF
34. Implementing a RtI Tier 2 Mathematics Lab in a Middle School
- Author
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Bouck, Emily C., Park, Jiyoon, Bouck, Mary K., Sprick, Jessica, and Buckland, Angela
- Abstract
Response to intervention (RtI) in secondary schools is a viable option for mathematics, but limited research exists. In the study, students who received just Tier 1 (i.e., general education mathematics class) and students who received both Tier 1 and Tier 2 (i.e., a math lab) completed a pretest and posttest of grade-level content. The results suggest no statistically significant difference between the overall mean assessment gain scores of the two groups. The Tier 2 math lab intervention as implemented did not further exacerbate mathematical differences between struggling students and their peers but it did not work to decrease the mathematics deficits of students needing intervention either. The "efficacy" of a Tier 2 math lab as a RtI system at the secondary level can be questioned.
- Published
- 2019
- Full Text
- View/download PDF
35. Renin-Angiotensin System Blockade is Associated with Exercise Capacity, Sympathetic Activity and Endothelial Function in Patients with Chronic Kidney Disease
- Author
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Jin Hee Jeong, Justin D. Sprick, Dana DaCosta, Arshed A. Quyyumi, and Jeanie Park
- Subjects
Dermatology ,RL1-803 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Background: Chronic kidney disease (CKD) patients have exercise intolerance and exaggerated blood pressure reactivity during exercise that are mediated by sympathetic nervous system (SNS) overactivation and decreased nitric oxide (NO) bioavailability. Activation of the renin-angiotensin system (RAS) increases SNS activation and reduces NO synthesis, and prior studies suggest that RAS blockade attenuates declines in physical function. We hypothesized that RAS inhibitor (RASi) use is associated with higher exercise capacity mediated by decreased SNS activity and increased NO-dependent endothelial function in CKD. Method: In 35 CKD patients (57 ± 7 years) and 20 controls (CON, 53 ± 8 years), we measured exercise capacity (VO2peak), muscle sympathetic nervous activity (MSNA) and flow-mediated dilation (FMD) for NO-dependent endothelial function. Results: CKD patients treated with RASi (CKD+RASi, n=25) had greater VO2 peak compared to CKD patients not treated with RASi (CKD no RASi, n=10), but lower VO2 peak compared to CON (23.3 ± 5.8 vs.16.4 ± 2.9, p=0.007; vs.30.0 ± 7.7, p=0.016 ml/min/kg respectively). CKD+RASi had lower resting MSNA and greater FMD compared to CKD no RASi. Compared to CON, CKD+RASi had similar MSNA but lower FMD. VO2 peak was positively associated with FMD (r=0.417, p=0.038) and was predicted by the combination of FMD and RASi status (r2 =0.344, p=0.01) and MSNA and RASi status (r2 =0.575, p=0.040) in CKD patients. Conclusion: In summary, CKD patients on RASi have higher exercise capacity compared to those not on RASi. Higher exercise capacity in RASi-treated group was associated with lower resting SNS activity and higher NO-dependent vascular endothelial function.
- Published
- 2021
- Full Text
- View/download PDF
36. Involving Teachers in Schoolwide Behavior Policy
- Author
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Sprick, Randy and Knight, Jim
- Abstract
Schools who hope to implement a schoolwide behavior management policy should make sure to involve teachers in the process. Sprick and Knight discuss ways that school leaders can get started on developing and executing an overall behavior strategy that gets buy-in from all staff. Forming a leadership team, giving teachers voice and choice, and being willing to adapt are steps that are discussed.
- Published
- 2018
37. Impact of Interfaces, and Nanostructure on the Performance of Conjugated Polymer Photocatalysts for Hydrogen Production from Water
- Author
-
Ewan McQueen, Yang Bai, and Reiner Sebastian Sprick
- Subjects
photocatalysis ,solar fuels ,hydrogen generation ,water splitting ,carbon dioxide reduction ,conjugated polymers ,Chemistry ,QD1-999 - Abstract
The direct conversion of sunlight into hydrogen through water splitting, and by converting carbon dioxide into useful chemical building blocks and fuels, has been an active area of research since early reports in the 1970s. Most of the semiconductors that drive these photocatalytic processes have been inorganic semiconductors, but since the first report of carbon nitride organic semiconductors have also been considered. Conjugated materials have been relatively extensively studied as photocatalysts for solar fuels generation over the last 5 years due to the synthetic control over composition and properties. The understanding of materials’ properties, its impact on performance and underlying factors is still in its infancy. Here, we focus on the impact of interfaces, and nanostructure on fundamental processes which significantly contribute to performance in these organic photocatalysts. In particular, we focus on presenting explicit examples in understanding the interface of polymer photocatalysts with water and how it affects performance. Wetting has been shown to be a clear factor and we present strategies for increased wettability in conjugated polymer photocatalysts through modifications of the material. Furthermore, the limited exciton diffusion length in organic polymers has also been identified to affect the performance of these materials. Addressing this, we also discuss how increased internal and external surface areas increase the activity of organic polymer photocatalysts for hydrogen production from water.
- Published
- 2022
- Full Text
- View/download PDF
38. Bullying Solutions: Universal and Individual Strategies
- Author
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Sprick, Jessica, Jenson, William R., Sprick, Randy, Coughlin, Cristy, Sprick, Jessica, Jenson, William R., Sprick, Randy, and Coughlin, Cristy
- Abstract
Bullying is a pervasive problem that negatively affects all students, including those who bully, those who are targeted, and bystanders. This resource allows you to take a multitiered approach that encompasses universal procedures, strategies for intervening with students who bully, and strategies for intervening with students who are targeted. Evaluate your existing bullying procedures and policies to determine whether your school is using an effective and comprehensive approach. The universal procedures in "Bullying Solutions" explain how to: (1) Structure settings, policies, and procedures to prevent bullying from occurring and ensure a coordinated and effective response to bullying incidents; (2) Teach students, families, and staff about bullying; (3) Effectively observe and monitor student behavior, and collect data on incidents of bullying; (4) Interact positively with students to increase engagement, school connectedness, and responsible student behavior; and (5) Correct students fluently when bullying occurs. 35 Intervention Strategies for Students Who Bully: These strategies are for use with individual students or groups who exhibit bullying behavior and includes: (1) Setting event strategies that target situations or conditions that increase the likelihood of bullying; (2) Antecedent strategies that address events, times, places, people, and activities that occur immediately before the student's bullying behavior; (3) Teaching strategies that provide the student with positive replacement behaviors; (4) Positive consequence strategies that provide incentives and motivation for the student to use replacement behaviors; and (5) Corrective consequence strategies that increase the consistency and efficacy of corrective consequences that are implemented when bullying occurs. 10 Intervention Strategies for Students Who are Targeted: "Bullying Solutions" includes 10 strategies specifically designed to support students who are targets of bullying. This resource provides suggestions for helping these students: (1) Know how to recognize, respond to, and report bullying; (2) Increase engagement in school; (3) Develop needed social or coping skills; and (4) Receive assessment or referral for other services (e.g., mental health or other supports).
- Published
- 2017
39. Conjugated Polymer/Recombinant Escherichia coli Biohybrid Systems for Photobiocatalytic Hydrogen Production.
- Author
-
Yang, Ying, Zwijnenburg, Martijn A., Gardner, Adrian M., Adamczyk, Sylwia, Yang, Jing, Sun, Yaqi, Jiang, Qiuyao, Cowan, Alexander J., Sprick, Reiner Sebastian, Liu, Lu-Ning, and Cooper, Andrew I.
- Published
- 2024
- Full Text
- View/download PDF
40. Felix Wörner / Ullrich Scheideler / Philip Rupprecht (Hg.), Tonality Since 1950, Stuttgart: Steiner 2017
- Author
-
Jan Philipp Sprick
- Subjects
tonalität ,tonality ,20. und 21. jahrhundert ,20th and 21st century ,musik und technologie ,music and technology ,deutschland und usa ,germany and united states of america ,Music and books on Music - Published
- 2019
- Full Text
- View/download PDF
41. Descriptions of the mature larva and pupa of the Scaly strawberry weevil, Sciaphilus asperatus (Bonsdorff, 1785) (Coleoptera, Curculionidae, Entiminae) and observations of its biology
- Author
-
Rafał Gosik, Peter Sprick, and Tetiana Tiahunova
- Subjects
Zoology ,QL1-991 - Abstract
The mature larva of Sciaphilus asperatus is redescribed and illustrated, and the pupa is described for the first time. Supplements to the identification keys for larvae and pupae of selected Palaearctic Entiminae genera and species are given. Data on the life history, especially oviposition capacity and voltinism, of S. asperatus are provided and discussed, and the number of the six larval instars was confirmed. The economic importance of S. asperatus is briefly highlighted.
- Published
- 2019
- Full Text
- View/download PDF
42. Therapy resistance on the RADar in ovarian cancer
- Author
-
Schwickert, Jonas, Zickgraf, Franziska M, and Sprick, Martin R
- Published
- 2021
- Full Text
- View/download PDF
43. Inter-evaluator and Intra-evaluator Reliability of a Software Program Used to Extract Kinematic Variables Obtained by an Extremity-Mounted Inertial Measurement Unit System in Sound Horses at the Trot Under Soft and Hard Ground Conditions and Treadmill Exercise
- Author
-
Julia Schwarz, Beatriz Vidondo, Ugo E. Maninchedda, Miriam Sprick, Melina C. Schöpfer, and Antonio M. Cruz
- Subjects
reliability ,gait ,horse ,surface ,IMU ,kinematics ,Veterinary medicine ,SF600-1100 - Abstract
Objective: To assess the inter-evaluator and intra-evaluator reliability of a software program used to extract kinematic variables by a commercially available extremity-mounted inertial measurement unit system in sound horses at the trot under soft and hard ground conditions and treadmill exercise.Animals: Thirty adult, sound and healthy French Montagne stallions.Procedures: Data collection was performed with six IMUs strapped to the distal, metacarpal, metatarsal and tibial regions of every horse. Per surface (treadmill, soft and hard ground) 10 stallions were trotted three times. Prior to the analysis done by six evaluators (three experienced, three inexperienced) the data was blinded and copied three times. For every analysis a minimum of five strides had to be selected. To assess the intra- and inter-evaluator reliability a selection of gait variables was used to calculate intra and inter correlation coefficients (ICCs) as well as variance partitioning coefficients (VPCs).Results: All of the tested gait variables showed high levels of reliability. There was no mentionable difference considering the correlation coefficients between the intra and inter reliability as well as between the three different surfaces. VPCs showed that the factor horse is by far the most responsible for any appearing variance. The experience of the evaluator had no influence on the results.Conclusions and Clinical Relevance: The software program tested in this study has a high inter- and intra-evaluator reliability under the chosen conditions for the selected variables and acts independent of the ground situation and the experience of the evaluator. On the condition of a correct application it has the potential to become a clinically relevant and reliable gait analysis tool.
- Published
- 2021
- Full Text
- View/download PDF
44. The Utility of Cerebrovascular Reactivity MRI in Brain Rehabilitation: A Mechanistic Perspective
- Author
-
Venkatagiri Krishnamurthy, Justin D. Sprick, Lisa C. Krishnamurthy, Jolie D. Barter, Aaminah Turabi, Ihab M. Hajjar, and Joe R. Nocera
- Subjects
integrative physiology ,cerebrovascular reactivity ,MRI ,mechanism ,rehabilitation ,aging ,Physiology ,QP1-981 - Abstract
Cerebrovascular control and its integration with other physiological systems play a key role in the effective maintenance of homeostasis in brain functioning. Maintenance, restoration, and promotion of such a balance are one of the paramount goals of brain rehabilitation and intervention programs. Cerebrovascular reactivity (CVR), an index of cerebrovascular reserve, plays an important role in chemo-regulation of cerebral blood flow. Improved vascular reactivity and cerebral blood flow are important factors in brain rehabilitation to facilitate desired cognitive and functional outcomes. It is widely accepted that CVR is impaired in aging, hypertension, and cerebrovascular diseases and possibly in neurodegenerative syndromes. However, a multitude of physiological factors influence CVR, and thus a comprehensive understanding of underlying mechanisms are needed. We are currently underinformed on which rehabilitation method will improve CVR, and how this information can inform on a patient’s prognosis and diagnosis. Implementation of targeted rehabilitation regimes would be the first step to elucidate whether such regimes can modulate CVR and in the process may assist in improving our understanding for the underlying vascular pathophysiology. As such, the high spatial resolution along with whole brain coverage offered by MRI has opened the door to exciting recent developments in CVR MRI. Yet, several challenges currently preclude its potential as an effective diagnostic and prognostic tool in treatment planning and guidance. Understanding these knowledge gaps will ultimately facilitate a deeper understanding for cerebrovascular physiology and its role in brain function and rehabilitation. Based on the lessons learned from our group’s past and ongoing neurorehabilitation studies, we present a systematic review of physiological mechanisms that lead to impaired CVR in aging and disease, and how CVR imaging and its further development in the context of brain rehabilitation can add value to the clinical settings.
- Published
- 2021
- Full Text
- View/download PDF
45. Current understanding and challenges of solar-driven hydrogen generation using polymeric photocatalysts
- Author
-
Wang, Yiou, Vogel, Anastasia, Sachs, Michael, Sprick, Reiner Sebastian, Wilbraham, Liam, Moniz, Savio J. A., Godin, Robert, Zwijnenburg, Martijn A., Durrant, James R., Cooper, Andrew I., and Tang, Junwang
- Published
- 2019
- Full Text
- View/download PDF
46. Sex-dependent effects of genetic upregulation of activated protein C on delayed effects of acute radiation exposure in the mouse heart, small intestine, and skin.
- Author
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Vijayalakshmi Sridharan, Kristin A Johnson, Reid D Landes, Maohua Cao, Preeti Singh, Gail Wagoner, Abdallah Hayar, Emily D Sprick, Kayla A Eveld, Anusha Bhattacharyya, Kimberly J Krager, Nukhet Aykin-Burns, Hartmut Weiler, Jose A Fernández, John H Griffin, and Marjan Boerma
- Subjects
Medicine ,Science - Abstract
Accidental exposure to ionizing radiation may lead to delayed effects of acute radiation exposure (DEARE) in many organ systems. Activated protein C (APC) is a known mitigator of the acute radiation syndrome. To examine the role of APC in DEARE, we used a transgenic mouse model with 2- to 3-fold increased plasma levels of APC (high in APC, APCHi). Male and female APCHi mice and wild-type littermates were exposed to 9.5 Gy γ-rays with their hind-legs (bone marrow) shielded from radiation to allow long-term survival. At 3 and 6 months after irradiation, cardiac function was measured with ultrasonography. At 3 months, radiation increased cardiac dimensions in APCHi males, while decreases were seen in wild-type females. At this early time point, APCHi mice of both sexes were more susceptible to radiation-induced changes in systolic function compared to wild-types. At 6 months, a decrease in systolic function was mainly seen in male mice of both genotypes. At 6 months, specimens of heart, small intestine and dorsal skin were collected for tissue analysis. Female APCHi mice showed the most severe radiation-induced deposition of cardiac collagens but were protected against a radiation-induced loss of microvascular density. Both male and female APCHi mice were protected against a radiation induced upregulation of toll-like receptor 4 in the heart, but this did not translate into a clear protection against immune cell infiltration. In the small intestine, the APCHi genotype had no effect on an increase in the number of myeloperoxidase positive cells (seen mostly in females) or an increase in the expression of T-cell marker CD2 (males). Lastly, both male and female APCHi mice were protected against radiation-induced epidermal thickening and increase in 3-nitrotyrosine positive keratinocytes. In conclusion, prolonged high levels of APC in a transgenic mouse model had little effects on indicators of DEARE in the heart, small intestine and skin, with some differential effects in male compared to female mice.
- Published
- 2021
- Full Text
- View/download PDF
47. Predictive Policing in China
- Author
-
Daniel Sprick
- Subjects
Law ,Social Sciences - Abstract
China’s public security forces are employing more and more technology in their push for an ‘informatization (信息化)’ of their police work. The application of analytical techniques for solving past crimes or preventing future crimes based on big data analysis is thereby a key component of China’s approach for technology-led policing. China’s holistic policy approach for the purpose of maintaining social stability that is encompassing an ever-growing range of societal issues, the vast investments of its police forces in new technologies and its paramount objective of security, that clearly supersedes inter alia concerns of privacy or transparency, may be considered extremely conducive to the establishment of effective predictive policing in China. This paper however argues, that the application of predictive policing in China is heavily flawed as the systemic risks and pitfalls of predictive policing cannot be mitigated but are rather exacerbated by China’s approach towards policing and its criminal justice system. It is therefore to be expected that predictive policing in China will mainly be a more refined tool for the selective suppression of already targeted groups by the police and does not substantially reduce crime or increase overall security.
- Published
- 2020
- Full Text
- View/download PDF
48. Descriptions of immature stages of four species of the genera Graptus, Peritelus, Philopedon, and Tanymecus and larval instar determination in Tanymecus (Coleoptera, Curculionidae, Entiminae)
- Author
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Rafał Gosik, Peter Sprick, and Michael G. Morris
- Subjects
Zoology ,QL1-991 - Abstract
The mature larva and pupa of Graptus triguttatus triguttatus and the mature larva of Peritelus sphaeroides are described for the first time. The larvae of Philopedon plagiatum and Tanymecus palliatus are re-described. Five larval instars were determined in Tanymecus, thereby correcting doubtful data in the literature. The relationship between larval growth, number of larval instars, head width of the mature larva, and the adult weevil is explained using the example of Tanymecus. The nearly constant ratio of subsequent larval instars in head width ratio, termed “growth factor” and derived from Dyar’s ratio, is used for the determination of larval instars. Larval collecting and breeding data are discussed in relation to their significance for the clarification of life-cycles.
- Published
- 2019
- Full Text
- View/download PDF
49. Understanding structure-activity relationships in linear polymer photocatalysts for hydrogen evolution
- Author
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Michael Sachs, Reiner Sebastian Sprick, Drew Pearce, Sam A. J. Hillman, Adriano Monti, Anne A. Y. Guilbert, Nick J. Brownbill, Stoichko Dimitrov, Xingyuan Shi, Frédéric Blanc, Martijn A. Zwijnenburg, Jenny Nelson, James R. Durrant, and Andrew I. Cooper
- Subjects
Science - Abstract
While inorganic semiconductors are well-studied for their solar-to-fuel energy conversion abilities, organic materials receive far less attention. Here, authors prepare linear conjugated polymers as H2 evolution photocatalysts and rationalize photocatalytic activities with fundamental properties.
- Published
- 2018
- Full Text
- View/download PDF
50. Single cell polarity in liquid phase facilitates tumour metastasis
- Author
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Anna Lorentzen, Paul F. Becker, Jan Kosla, Massimo Saini, Kathrin Weidele, Paolo Ronchi, Corinna Klein, Monika J. Wolf, Felix Geist, Bastian Seubert, Marc Ringelhan, Daniela Mihic-Probst, Knud Esser, Marko Roblek, Felix Kuehne, Gaia Bianco, Tracy O’Connor, Quentin Müller, Kathleen Schuck, Sebastian Lange, Daniel Hartmann, Saskia Spaich, Olaf Groß, Jochen Utikal, Sebastian Haferkamp, Martin R. Sprick, Amruta Damle-Vartak, Alexander Hapfelmeier, Norbert Hüser, Ulrike Protzer, Andreas Trumpp, Dieter Saur, Nachiket Vartak, Christoph A. Klein, Bernhard Polzer, Lubor Borsig, and Mathias Heikenwalder
- Subjects
Science - Abstract
Polarisation of metastasising cancer cells in circulation has not been investigated before. Here the authors identify single cell polarity as a distinct polarisation state of single cells in liquid phase, and show that perturbing single cell polarity affects attachment, adhesion, transmigration and metastasis in vitro and in vivo.
- Published
- 2018
- Full Text
- View/download PDF
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