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3. Finding Ebook Gold in the Library of Congress' Digital Collection: [This collection] contains some of the most important works in civilization, including the great works of science and literature

Author

Meyer, Jeffrey

Subjects
United States. Library of Congress -- Collections and collecting, E-books -- Collections and collecting, Electronic book, Computers, Library and information science
Abstract

Free ebooks! Easily accessible! No usernames or passwords needed! The Library of Congress (LC) has scanned thousands of the great works of civilization and made them freely available online as [...]

Published
2024

8. Defining Minimum Treatment Parameters of Ablative Radiation Therapy in Patients With Hepatocellular Carcinoma: An Expert Consensus

Author

Yanagihara, Ted K., Tepper, Joel E., Moon, Andrew M., Barry, Aisling, Molla, Meritxell, Seong, Jinsil, Torres, Ferran, Apisarnthanarax, Smith, Buckstein, Michael, Cardenes, Higinia, Chang, Daniel T., Feng, Mary, Guha, Chandan, Hallemeier, Christopher L., Hawkins, Maria A., Hoyer, Morten, Iwata, Hiromitsu, Jabbour, Salma K., Kachnic, Lisa, Kharofa, Jordan, Kim, Tae Hyun, Kirichenko, Alexander, Koay, Eugene J., Makishima, Hirokazu, Mases, Joel, Meyer, Jeffrey J., Munoz-Schuffenegger, Pablo, Owen, Dawn, Park, Hee Chul, Saez, Jordi, Sanford, Nina N., Scorsetti, Marta, Smith, Grace L., Wo, Jennifer Y., Yoon, Sang Min, Lawrence, Theodore S., Reig, Maria, and Dawson, Laura A.

Published
2024
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10. Universal systole bounds for arithmetic locally symmetric spaces

Author

Lapan, Sara, Linowitz, Benjamin, and Meyer, Jeffrey S.

Subjects
Mathematics - Differential Geometry, Mathematics - Geometric Topology, Mathematics - Number Theory
Abstract

The systole of a closed Riemannian manifold is the minimal length of a non-contractible closed loop. We give a uniform lower bound for the systole for large classes of simple arithmetic locally symmetric orbifolds. We establish new bounds for the translation length of a semisimple element x in SL_n(R) in terms of its associated Mahler measure. We use these geometric methods to prove the existence of extensions of number fields in which fixed sets of primes have certain prescribed splitting behavior.

Published
2021

12. Do Points Matter? The Effects of Gamification Activities with and without Points on Student Learning and Engagement

Author

Koppitsch, Steven E. and Meyer, Jeffrey

Abstract

Instructor use of online gamification techniques using platforms such as Kahoot has been increasing in recent years. Prior research has found that the use of gamification can increase student engagement in a class and improve student performance on exams compared to traditional lectures and flipped classes. This paper examines the specific effect of gamification using points versus polls through the use of two different modes on Kahoot, which is an area that has been largely unexplored. The results of a semester-long study show that the point-based gamification of quiz mode leads to higher levels of reported student engagement when compared to traditional lecture, but no difference between point-based gamification and gamification that is poll-based. However, point-based gamification that rewards fast responses led to poorer learning outcomes in general when compared to the poll-based gamification condition; this effect was ever larger when measured one week after the use of the gamification technique.

Published
2022
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13. Arithmeticity and Hidden Symmetries of Fully Augmented Pretzel Link Complements

Author

Meyer, Jeffrey S., Millichap, Christian, and Trapp, Rolland

Subjects
Mathematics - Geometric Topology, 57M25, 57M27, 57M50
Abstract

This paper examines number theoretic and topological properties of fully augmented pretzel link complements. In particular, we determine exactly when these link complements are arithmetic and exactly which are commensurable with one another. We show these link complements realize infinitely many CM-fields as invariant trace fields, which we explicitly compute. Further, we construct two infinite families of non-arithmetic fully augmented link complements: one that has no hidden symmetries and the other where the number of hidden symmetries grows linearly with volume. This second family realizes the maximal growth rate for the number of hidden symmetries relative to volume for non-arithmetic hyperbolic 3-manifolds. Our work requires a careful analysis of the geometry of these link complements, including their cusp shapes and totally geodesic surfaces inside of these manifolds., Comment: 34 pages. This is the final (accepted) version of the paper

Published
2018

15. Monoamine Oxidase Inhibitors in Depressive Disorders

Author

Meyer, Jeffrey H., Matveychuk, Dmitriy, Holt, Andrew, Santhirakumar, Apitharani, Baker, Glen B., Laux, Gerd, Section editor, Möller, Hans-Jürgen, Section editor, Riederer, Peter, editor, Laux, Gerd, editor, Nagatsu, Toshiharu, editor, Le, Weidong, editor, and Riederer, Christian, editor

Published
2022
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17. A Randomized Double Blind Placebo Controlled Trial of a Dietary Supplement Designed for Resiliency Against Elevated Monoamine Oxidase A Level: Effects on Depressive Symptoms in Early Postpartum and Subsequent Six Months

Author

Meyer, Jeffrey, primary, Wang, Emily, additional, Santhirakumar, Apitharani, additional, Dowlati, Yekta, additional, Docteur, Natalia, additional, Shoaib, Aqsa, additional, Purnava, Jareeat, additional, Wang, Wei, additional, Husain, Ishrat, additional, Wijeyeratne, Rashmi, additional, Reeyaz, Heba, additional, Tan, Catalina Baena, additional, Koshimori, Yuko, additional, Nasser, Zahra, additional, and Sit, Valerie, additional

Published
2024
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21. 226. Neuroinflammation After COVID-19 With Persistent Depressive and Cognitive Symptoms

Author

Braga, Joeffre, primary, Kuik, Emily J.Y., additional, Lepra, Mariel, additional, Rusjan, Pablo M., additional, Kish, Stephen, additional, Vieira, Erica, additional, Nasser, Zahra, additional, Verhoeff, Natasha, additional, Vasdev, Neil, additional, Chao, Thomas, additional, Bagby, Michael, additional, Boileau, Isabelle, additional, Kloiber, Stefan, additional, Husain, Muhammad Ishrat, additional, Kolla, Nathan, additional, Koshimori, Yuko, additional, Faiz, Khunsa, additional, Wang, Wei, additional, and Meyer, Jeffrey H., additional

Published
2024
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23. Recent Developments and Therapeutic Strategies against Hepatocellular Carcinoma

Author

Yarchoan, Mark, Agarwal, Parul, Villanueva, Augusto, Rao, Shuyun, Dawson, Laura A, Karasic, Thomas, Llovet, Josep M, Finn, Richard S, Groopman, John D, El-Serag, Hashem B, Monga, Satdarshan P, Wang, Xin Wei, Karin, Michael, Schwartz, Robert E, Tanabe, Kenneth K, Roberts, Lewis R, Gunaratne, Preethi H, Tsung, Allan, Brown, Kimberly A, Lawrence, Theodore S, Salem, Riad, Singal, Amit G, Kim, Amy K, Rabiee, Atoosa, Resar, Linda, Meyer, Jeffrey, Hoshida, Yujin, He, Aiwu Ruth, Ghoshal, Kalpana, Ryan, Patrick B, Jaffee, Elizabeth M, Guha, Chandan, Mishra, Lopa, Coleman, C Norman, and Ahmed, Mansoor M

Subjects
Biomedical and Clinical Sciences, Oncology and Carcinogenesis, Digestive Diseases, Liver Disease, Liver Cancer, Cancer, Orphan Drug, Rare Diseases, Chronic Liver Disease and Cirrhosis, Evaluation of treatments and therapeutic interventions, 6.1 Pharmaceuticals, Anilides, Antibodies, Monoclonal, Humanized, Carcinoma, Hepatocellular, Chemoembolization, Therapeutic, Clinical Trials as Topic, Humans, Immunotherapy, Liver Neoplasms, Molecular Targeted Therapy, Mutation, Phenylurea Compounds, Protein Kinase Inhibitors, Pyridines, Quinolines, beta Catenin, Oncology & Carcinogenesis, Biochemistry and cell biology, Oncology and carcinogenesis
Abstract

Hepatocellular carcinoma (HCC) has emerged as a major cause of cancer deaths globally. The landscape of systemic therapy has recently changed, with six additional systemic agents either approved or awaiting approval for advanced stage HCC. While these agents have the potential to improve outcomes, a survival increase of 2-5 months remains poor and falls short of what has been achieved in many other solid tumor types. The roles of genomics, underlying cirrhosis, and optimal use of treatment strategies that include radiation, liver transplantation, and surgery remain unanswered. Here, we discuss new treatment opportunities, controversies, and future directions in managing HCC.

Published
2019

25. F. Scott Fitzgerald: A Composite Biography

Author

Meyer, Jeffrey

Subjects
F. Scott Fitzgerald: A Composite Biography (Biography) -- Salmose, Niklas -- Rennie, David, Books -- Book reviews, Library and information science
Abstract

F. Scott Fitzgerald: A Composite Biography. Univ. of Minnesota. Jul. 2024. 448p. ed. by Niklas Salmose & David Rennie. ISBN 9781517915858. $29.95. LIT This biography chronicles the life, works, and [...]

Published
2024

27. Systole inequalities for arithmetic locally symmetric spaces

Author

Lapan, Sara, Linowitz, Benjamin, and Meyer, Jeffrey S.

Subjects
Mathematics - Differential Geometry, Mathematics - Number Theory
Abstract

In this paper we study the systole growth of arithmetic locally symmetric spaces up congruence covers and show that this growth is at least logarithmic in volume. This generalizes previous work of Buser and Sarnak as well as Katz, Schaps and Vishne where the case of compact hyperbolic 2- and 3-manifolds was considered.

Published
2017

35. Impact of the COVID-19 Pandemic on Liver Cancer Staging at a Multidisciplinary Liver Cancer Clinic

Author

Li, Daniel, Jia, Angela Y., Zorzi, Jane, Griffith, Paige, Kim, Amy K., Dao, Doan, Anders, Robert A., Georgiades, Christos, Liddell, Robert P., Hong, Kelvin, Azad, Nilofer S., Ho, Won Jin, Baretti, Marina, Christenson, Eric, Baghdadi, Azarakhsh, Kamel, Ihab R., Meyer, Jeffrey, Ghabi, Elie, Burkhart, Richard A., Lafaro, Kelly, He, Jin, Shubert, Chris, and Yarchoan, Mark

Published
2022
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39. Constructing Geometrically Equivalent Hyperbolic Orbifolds

Author

McReynolds, D. B., Meyer, Jeffrey S., and Stover, Matthew

Subjects
Mathematics - Geometric Topology, Mathematics - Differential Geometry
Abstract

In this paper, we construct families of nonisometric hyperbolic orbifolds that contain the same isometry classes of nonflat totally geodesic subspaces. The main tool is a variant of the well-known Sunada method for constructing length-isospectral Riemannian manifolds that handles totally geodesic submanifolds of multiple codimensions simultaneously., Comment: Final version. To appear in Algebr. Geom. Topol

Published
2015
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40. Systolic Surfaces of Arithmetic Hyperbolic 3-Manifolds

Author

Linowitz, Benjamin and Meyer, Jeffrey S.

Subjects
Mathematics - Geometric Topology, Mathematics - Number Theory
Abstract

In this paper we examine the geometry of minimal surfaces of arithmetic hyperbolic 3-manifolds. In particular, we give bounds on the totally geodesic 2-systole, construct infinitely many incommensurable manifolds with the same initial geometric genus spectrum in which volume and 1-systole are controlled, and analyze the growth of the genera of minimal surfaces across commensurability classes. These results have applications to the study of how Heegard genus grows across commensurability classes.

Published
2015

41. The length spectra of arithmetic hyperbolic 3-manifolds and their totally geodesic surfaces

Author

Linowitz, Benjamin, Meyer, Jeffrey S., and Pollack, Paul

Subjects
Mathematics - Geometric Topology, Mathematics - Number Theory
Abstract

In this paper we examine the relationship between the length spectrum and the geometric genus spectrum of an arithmetic hyperbolic 3-orbifold M. In particular we analyze the extent to which the geometry of M is determined by the closed geodesics coming from finite area totally geodesic surfaces. Using a variety of techniques from analytic number theory, we address the following problems: Is the commensurability class of an arithmetic hyperbolic 3-orbifold determined by the lengths of closed geodesics lying on totally geodesic surfaces?, Do there exist arithmetic hyperbolic 3-orbifolds whose "short" geodesics do not lie on any totally geodesic surfaces?, and Do there exist arithmetic hyperbolic 3-orbifolds whose "short" geodesics come from distinct totally geodesic surfaces?

Published
2015

42. Totally Geodesic Spectra of Quaternionic Hyperbolic Orbifolds

Author

Meyer, Jeffrey S.

Subjects
Mathematics - Geometric Topology, Mathematics - Differential Geometry, Mathematics - Group Theory
Abstract

In this paper we analyze and classify the totally geodesic subspaces of finite volume quaternionic hyperbolic orbifolds and their generalizations, locally symmetric orbifolds arising from irreducible lattices in Lie groups of the form $(\mathbf{Sp}_{2n}(\mathbb{R}))^q \times \prod_{i=1}^r \mathbf{Sp}(p_i,n-p_i) \times (\mathbf{Sp}_{2n}(\mathbb{C}))^s$. We give criteria for when the totally geodesic subspaces of such an orbifold determine its commensurability class. We give a parametrization of the commensurability classes of finite volume quaternionic hyperbolic orbifolds in terms of arithmetic data, which we use to show that the complex hyperbolic totally geodesic subspaces of a quaternionic hyperbolic orbifold determine its commensurability class, but the real hyperbolic totally geodesic subspaces do not. Lastly, our tools allow us to show that every cocompact lattice $\Gamma<\mathbf{Sp}(m,1)$, $m\ge 2$, contains quasiconvex surface subgroups., Comment: 22 pages

Published
2015

43. On the isospectral orbifold-manifold problem for nonpositively curved locally symmetric spaces

Author

Linowitz, Benjamin and Meyer, Jeffrey S.

Subjects
Mathematics - Differential Geometry, Mathematics - Geometric Topology, Mathematics - Spectral Theory
Abstract

An old problem asks whether a Riemannian manifold can be isospectral to a Riemannian orbifold with nontrivial singular set. In this short note we show that under the assumption of Schanuel's conjecture in transcendental number theory, this is impossible whenever the orbifold and manifold in question are length-commensurable compact locally symmetric spaces of nonpositive curvature associated to simple Lie groups.

Published
2015

46. A Multi-Institutional Safety and Feasibility Study Exploring the Use of Hydrogel to Create Spatial Separation between the Pancreas and Duodenum in Patients with Pancreatic Cancer.

Author

Narang, Amol Kumar, Hong, Theodore S., Ding, Kai, Herman, Joseph, Meyer, Jeffrey, Thompson, Elizabeth, Bhutani, Manoop S., Krishnan, Kumar, Casey, Brenna, Shin, Eun Ji, and Koay, Eugene J.

Abstract

The administration of dose-escalated radiation for pancreatic adenocarcinoma remains challenging because of the proximity of dose-limiting stomach and bowel, particularly the duodenum for pancreatic head tumors. We explore whether endoscopic injection of a temporary, absorbable hydrogel into the pancreatico-duodenal (PD) groove is safe and feasible for the purpose of increasing spatial separation between pancreatic head tumors and the duodenum. Six patients with localized pancreatic adenocarcinoma underwent endoscopic injection of hydrogel into the PD groove. Safety was assessed based on the incidence of procedure-related adverse events resulting in a delay of radiation therapy initiation. Feasibility was defined as the ability to create spatial separation between the pancreas and duodenum, as assessed on simulation CT. All 6 patients were able to undergo endoscopic injection of hydrogel into the PD groove. No device-related events were experienced at any point in follow-up. Presence of hydrogel in the PD groove was apparent on simulation CT in all 6 patients. Mean space created by the hydrogel was 7.7 mm +/- 2.4 mm. In 3 patients who underwent Whipple resection, presence of hydrogel in the PD groove was pathologically confirmed with no evidence of damage to the duodenum. Endoscopic injection of hydrogel into the PD groove is safe and feasible. Characterization of the dosimetric benefit that this technique may offer in the setting of dose-escalated radiation should also be pursued, as should the ability of such dosimetric benefit to translate into clinically improved tumor control. [ABSTRACT FROM AUTHOR]

Published
2024
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47. Autoimmune psychosis: an international consensus on an approach to the diagnosis and management of psychosis of suspected autoimmune origin

Author

Pollak, Thomas A, Lennox, Belinda R, Müller, Sabine, Benros, Michael E, Prüss, Harald, Tebartz van Elst, Ludger, Klein, Hans, Steiner, Johann, Frodl, Thomas, Bogerts, Bernhard, Tian, Li, Groc, Laurent, Hasan, Alkomiet, Baune, Bernhard T, Endres, Dominique, Haroon, Ebrahim, Yolken, Robert, Benedetti, Francesco, Halaris, Angelos, Meyer, Jeffrey H, Stassen, Hans, Leboyer, Marion, Fuchs, Dietmar, Otto, Markus, Brown, David A, Vincent, Angela, Najjar, Souhel, and Bechter, Karl

Published
2020
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50. Totally Geodesic Spectra of Arithmetic Hyperbolic Spaces

Author

Meyer, Jeffrey S.

Subjects
Mathematics - Differential Geometry, Mathematics - Group Theory, Mathematics - Geometric Topology, Mathematics - Number Theory
Abstract

In this paper we show that totally geodesic subspaces determine the commensurability class of a standard arithmetic hyperbolic $n$-orbifold, $n\ge 4$. Many of the results are more general and apply to locally symmetric spaces associated to arithmetic lattices in $\mathbb{R}$-simple Lie groups of type $B_n$ and $D_n$. We use a combination of techniques from algebraic groups and quadratic forms to prove several results about these spaces., Comment: 34 Pages. Corrected typos. Added references. Improved exposition

Published
2014

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