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In order to better understand the role that race or ethnicity may play in who is stopped by their officers, the California Highway Patrol (CHP) provided the California Policy Lab (CPL) with a data set of 2,141,817 enforcement stops made by the CHP from January to December of 2019. The data was collected pursuant to California’s Racial and Identity Profiling Act of 2015 (RIPA). In order to extend the statistical analysis presented in the 2021 Annual RIPA Board Report, we evaluated enforcement stops in combination with non-enforcement stops using two generally accepted approaches to measure racially disparate policing: benchmarking and a hit rate analysis.This work has been supported, in part, by the University of California Multicampus Research Programs and Initiatives grants MRP-19-600774.

ObjectivesMismatch negativity (MMN), an auditory event-related potential sensitive to deviance detection, is smaller in schizophrenia and psychosis risk. In a multisite study, a regression approach to account for effects of site and age (12-35 years) was evaluated alongside the one-year stability of MMN.MethodsStability of frequency, duration, and frequency + duration (double) deviant MMN was assessed in 167 healthy subjects, tested on two occasions, separated by 52 weeks, at one of eight sites. Linear regression models predicting MMN with age and site were validated and used to derive standardized MMN z-scores. Variance components estimated for MMN amplitude and latency measures were used to calculate Generalizability (G) coefficients within each site to assess MMN stability. Trait-like aspects of MMN were captured by averaging across occasions and correlated with subject traits.ResultsAge and site accounted for less than 7% of MMN variance. G-coefficients calculated at electrode Fz were stable (G = 0.63) across deviants and sites for amplitude measured in a fixed window, but not for latency (G = 0.37). Frequency deviant MMN z-scores averaged across tests negatively correlated with averaged global assessment of functioning.ConclusionMMN amplitude is stable and can be standardized to facilitate longitudinal multisite studies of patients and clinical features.

The Racial and Identity Profiling Act (RIPA) of 2015 was enacted in order to better identify and mitigate race-based and identity-based bias in policing. The law requires California police departments to record data on stops made by police officers, including fields such as perceived identity and demographics, reasoning for stops and searches, and the outcome of each encounter. RIPA does not explicitly distinguish between vehicle or pedestrian stops.In December of 2019, the Los Angeles Police Department (LAPD) RIPA Board (the Board) requested that Dr. Emily Owens of the California Policy Lab (CPL) conduct an analysis of the RIPA data and provide a report to the Board, in order to better understand any patterns that the data revealed. This report provides a place-based analysis of all stops made by the LAPD from July 2018 – October 2019.This work has been supported, in part, by the University of California Multicampus Research Programs and Initiatives grant MRP-19-600774.

Pest density--plant damage relationships are essential guides for decision-making in integrated pest management. In this article, we established pest density--leaf damage relationships for the beech leaf-mining weevil, Orchestes fagi L. (formerly Rhynchaenus fagi, Coleoptera: Curculionidae), in its invasive range of Nova Scotia, Canada. Outbreaks of O. fagi cause tree-wide leaf necrosis in American beech (Fagus grandifolia Ehrh.), which can eventually result in tree mortality. In 2014 and 2016, we collected weekly samples in stands with American beech and assessed leaves for densities during different life stages (eggs, larvae, and pupae), population proxy measures (adult feeding damage, egg slits, and larval galleries), and percent necrosis. In general, feeding damage and leaf necrosis plateaued soon after the end of budburst, but before the larval mine expanded. This strongly suggested that leaf necrosis may be linked to damage caused by adults or by mine initiation rather than that caused by larval mine expansion and gallery development. The density of O. fagi per leaf for life stages and population proxies all significantly explained ~42%-81% of the variation in end-of-season percent leaf necrosis. Results from this study provide a variety of relationships that could be used in both short- and long-term monitoring efforts for O. fagi. Key words: beech leaf-mining weevil, density-damage relationships, invasive species, integrated pest management. Les relations entre la densite des ravageurs et les dommages qu'ils causent chez les vegetaux constituent des guides essentiels pour la prise de decision dans la lutte integree contre les ravageurs. Dans cet article, nous avons etabli des relations entre la densite d'un ravageur et les dommages foliaires dans le cas de l'orcheste du hetre, Orchestes fagi L. (anciennement Rhynchaenus fagi, coleoptere, Curculionidae) dans les aires envahies de la Nouvelle-Ecosse, au Canada. Les epidemies de O. fagi causent la necrose des feuilles partout dans l'arbre chez le hetre d'Amerique (Fagus grandifolia Ehrh.) qui peut eventuellement entrainer la mort des arbres. En 2014 et 2016, nous avons effectue des prelevements hebdomadaires d'echantillons dans des peuplements ou le hetre d'Amerique etait present et nous avons evalue les feuilles pour la densite durant les differents stades de vie (oeufs, larves, pupes), pris des mesures indirectes de la population (dommages dus au prelevement alimentaire des adultes, encoches de ponte et galeries larvaires) et determiner le pourcentage de necrose. En general, les dommages dus au prelevement alimentaire et la necrose foliaire ont atteint un plateau peu de temps apres la fin du debourrement mais avant l'expansion des galeries larvaires. Cela suggere fortement que la necrose des feuilles pourrait etre liee aux dommages causes par les adultes ou l'initiation de l'activite des larves plutot qu'a ceux causes par l'expansion de l'activite des larves et le developpement des galeries. La densite de O. fagi par feuille durant les differents stades de vie et les mesures indirectes de population expliquaient environ 42-81% de la variation dans le pourcentage de necrose foliaire en fin de saison. Les resultats de cette etude fournissent une variete de relations qui pourraient etre utilisees en appuie aux efforts de suivi a court et long termes de O. fagi. [Traduit par la Redaction] Mots-cles : orcheste du hetre, relations entre la densite d'un ravageur et la severite des dommages, especes invasives, lutte integree contre les ravageurs., 1. Introduction Efficient use of control tactics in integrated pest management (IPM) requires an understanding of relationships between herbivore density and associated host plant damage. More specifically, pest density--damage relationships [...]

Background: We examined the association between late-stage diagnosis and individual- and community-level sociodemographic and socioeconomic characteristics among patients with pediatric Hodgkin lymphoma and rhabdomyosarcoma (RMS). Methods: We obtained Children's Oncology Group data from 1999 to 2021 including summary stage [local (L), regional (R), and distant (D)], tumor subtype, demographics, and ZIP Code at diagnosis. We linked ZIP Codes to county-level redlining scores (C, D = greatest redlining), the Child Opportunity Index, and measures of segregation (racial dissimilarity indices). Logistic regressions calculated odds ratios for late-stage diagnosis and by race within tumor subtype. Results: In total, 5,956 patients with Hodgkin lymphoma and 2,800 patients with RMS were included. Late-stage diagnosis of Hodgkin lymphoma was correlated with Black race [ORDistant(D) vs. regional/local (R&L) = 1.38 (1.13-1.68)], being uninsured [ORD vs. R&L = 1.38 (1.09-1.75)], and subtype [nodular sclerosis vs. Other Hodgkin lymphoma: ORD vs. R&L = 1.64 (1.34-2.01), Untyped: ORD vs. R&L = 1.30 (1.04-1.63)]. Late-stage RMS was correlated with bilingual households [ORDistant/regional(D&R) vs. local(L) = 2.66 (1.03-6.91)] and tumor type [alveolar vs. embryonal ORD vs. R&L = 6.16 (5.00-7.58)]. Community-level factors associated with late-stage Hodgkin lymphoma were greater Black (OR80-100% = 1.83; 95% CI = 1.11-3.02) and Hispanic (OR60-79% = 1.30; 95% CI = 1.05-1.60) dissimilarity indices. Late-stage diagnosis for RMS was associated with more redlined census tracts within counties (OR = 1.54; 95% CI = 1.02-2.35) and low/very low Child Opportunity Index (OR = 1.21; 95% CI = 1.02-1.45). Conclusions: Novel markers of community deprivation, such as redlining and racial segregation, were correlated with cancer outcomes for children with Hodgkin lymphoma and RMS in this first disparities study using Children's Oncology Group registries. [ABSTRACT FROM AUTHOR]

OBJECTIVE: Although patients with schizophrenia exhibit impaired suppression of the P50 event-related brain potential in response to the second of two identical auditory stimuli during a paired-stimulus paradigm, uncertainty remains over whether this deficit in inhibitory gating of auditory sensory processes has relevance for patients clinical symptoms or cognitive performance. The authors examined associations between P50 suppression deficits and several core features of schizophrenia to address this gap. METHOD: P50 was recorded from 52 patients with schizophrenia and 41 healthy comparison subjects during a standard auditory paired-stimulus task. Clinical symptoms were assessed with the Scale for the Assessment of Positive Symptoms and the Scale for the Assessment of Negative Symptoms. The MATRICS Consensus Cognitive Battery was utilized to measure cognitive performance in a subsample of 39 patients. Correlation and regression analyses were conducted to examine P50 suppression in relation to clinical symptom and cognitive performance measures. RESULTS: Schizophrenia patients demonstrated a deficit in P50 suppression when compared with healthy subjects, replicating prior research. Within the patient sample, impaired P50 suppression covaried reliably with greater difficulties in attention, poorer working memory, and reduced processing speed. CONCLUSIONS: Impaired suppression of auditory stimuli was associated with core pathological features of schizophrenia, increasing confidence that P50 inhibitory processing can inform the development of interventions that target cognitive impairments in this chronic and debilitating mental illness.

Endophenotypes are quantitative, heritable traits that may help to elucidate the pathophysiologic mechanisms underlying complex disease syndromes, such as schizophrenia. They can be assessed at numerous levels of analysis; here, we review electrophysiological endophenotypes that have shown promise in helping us understand schizophrenia from a more mechanistic point of view. For each endophenotype, we describe typical experimental procedures, reliability, heritability, and reported gene and neurobiological associations. We discuss recent findings regarding the genetic architecture of specific electrophysiological endophenotypes, as well as converging evidence from EEG studies implicating disrupted balance of glutamatergic signaling and GABAergic inhibition in the pathophysiology of schizophrenia. We conclude that refining the measurement of electrophysiological endophenotypes, expanding genetic association studies, and integrating data sets are important next steps for understanding the mechanisms that connect identified genetic risk loci for schizophrenia to the disease phenotype.

BACKGROUND: LMD in children with recurrent medulloblastoma and other PNETs carries a poor prognosis and novel therapies are urgently needed to improve disease control. Somatostatin receptor-2 (SSR-2)is overexpressed in medulloblastoma and other central PNETs and can serve as a target for radionuclide tagged somatostatin analogues like 177Lu-DOTA-TATE that has shown considerable efficacy in adults with SSR-2 positive neuro-endocrine tumors. As a preliminary step prior to testing this agent in children with LMD, we performed an efficacy study of i.t. 177Lu-DOTA-TATE in athymic rats bearing LMD from MBL. METHODS: The subarachnoid space was accessed through the animal's cervical spine and a catheter was threaded along the dorsal aspect of spinal cord to the lumbar region and injected with 1 x 107 D341 human MBL cells and treatment initiated 3 days later. Groups of 10 animals received a single i.t. dose of 2, 3, or 5 mCi of 177Lu- DOTA-TATE or saline control. Animals were followed 300 days for survival. RESULTS: Treatment with 2 mCi resulted in an increase in median survival of 58.3% compared with saline control (p < 0.001). Treatment with 5.0 mCi of 177Lu-DOTA-TATE increased median survival by 75.0% compared with the saline control group while a single dose of 3.0 mCi 177Lu-DOTA-TATE increased median survival compared with saline controls by 519.4%. Long-term survivors were seen in 0 of 10 animals treated with saline, 4 of 11 treated with 3 mCi, and 3 of 12 treated with 5.0 mCi. CONCLUSION: Intrathecal 177Lu- DOTA TATE is efficacious in controlling LMD from medulloblastoma in athymic rats. A phase I trial of this agent is being planned in children with LMD from recurrent MBL and other CNS PNETs. INTRODUCTION: Medulloblastoma/PNET is the most common malignant brain tumor in children. For children older than 3 years, the treatment of high risk group includes surgery, craniospinal (CSI) radiation therapy (30-36 Gy) plus local boost radiotherapy (54-56 Gy) and adjuvant chemotherapy, such as cisplatinum, carboplatin, lomustine, cyclophosphamide, and vincristine. The results have demonstrated 5-year overall survival (OS) of 40-60%. This study aimed to evaluate the outcomes of high risk medulloblastoma/PNET patients who were treated with radiation and adjuvant chemotherapy. METHODS: Patients were diagnosed with high risk medulloblastoma/PNET according to the histopathology, medulloblastoma risk classification by an evidence of metastasis or the residual tumor more than 1.5 cm2 and evidence of residual tumor after surgery in PNET. Treatment protocol was CSI RT 36 Gy with local boost at tumor 54-56 Gy. Two to four weeks after RT, patients received 8 courses of chemotherapy consisting of cyclophosphamide 800 mg/m2, day 1-3 and vincristine 2 mg/m2, week 1-3, alternated with carboplatin 200 mg/m2, day 1-3 and etoposide 150 mg/m2, day 1-3. RESULTS: Total of 25 patients, male: female of 2.6:1 and mean ± SD for age of 9.7± 3.0 years, were enrolled. The 5-year progression free survival and OS were 41.6± 11.7% and 61.5± 12.9%,respectively. The age and sex did not determine the difference in outcomes. The hematotoxic side effect, according to the National Cancer Institute's Common Terminology Criteria, were grade 4 leucopenia 60%, grade 4 neutropenia 60%, grade 4 anemia 20%, grade 4 thrombocytopenia 16%, grade 3 leucopenia 20%, grade 3 neutropenia 20%, grade 3 anemia 40%, and grade 3 thrombocytopenia 36%. Febrile neutropenia was found in 11 patients (44%). CONCLUSION: The present study demonstrated the similar outcomes of high risk medulloblastoma/PNET with the previous studies. Although, the grade 3 and 4 hematologic toxicity was high, no treatment related death was found. OBJECTIVE: Recent investigations revealed an association between transcriptional subtypes and morphological features in medulloblastoma. Since both characteristics are of prognostic significance, a precise correlation between them should be well established. Therefore we re-examined paediatric nodular medulloblastoma tumours for correlation with molecular subtypes of disease. METHODS: Paediatric patients with previously diagnosed desmoplastic/nodular (D/N) or medulloblastoma with extensive nodularity (MBEN) histopathology were re-analysed by two neuropathologists. In addition to H&E-stained slides, reticulin preparations were simultaneously analysed from the same FFPE blocks. For identification of transcriptional subtypes of tumours immunohistopathological analyses were performed using a panel of representative antibodies. MYCC amplification was detected by FISH. RESULTS: Altogether 28 tumours with original MBEN or D/N diagnosis where molecular subtypes could be determined were identified. All tumours with MBEN histology belonged to SHH group and displayed distinctive reticulin-positive internodular reaction. However, only ∼60% of tumours with original D/N diagnosis were reticulin-positive. They belonged to SHH type, were mainly infantile and patients are still alive. Among reticulin-negative tumours only two were of the SHH type and were subsequently reclassified as classic and anaplastic tumours with pseudonodules. Importantly, all remaining reticulin-negative tumours with a presence of nodules in H&E staining belonged to the non-WNT,SHH type. Therefore the original diagnosis was again reclassified as classic or anaplastic tumours with pseudonodules. Patients from this group were only males, with median age 14 years old, one had MYCC amplification and two of them died because of disease. Therefore, non-WNT,SHH tumours did not display typical desmoplastic/nodular histology accompanied by reticulin positive reaction as opposite to truly D/N tumours being typical for SHH molecular group (p < 0.001). CONCLUSION: Reticulin staining is necessary to distinguish two different biologically and clinically group of nodular tumours which appear morphologically similar under H&E staining alone. BACKGROUND: In the PNET4 European randomised controlled trial, children with standard risk medulloblastoma were allocated to HFRT or to STRT. All received maintenance chemotherapy. Event-free survival was similar between the two treatment arms. HFRT was associated with worse growth and better questionnaire-based executive function 6.1 years post-diagnosis, especially in children aged 8 years at diagnosis. In children aged .10); WMI (5.20 [-2.07 to 12.47], p > .10), PSI (10.91 [-1.54 to 23.36], p = .08; FSIQ (5.28 [-4.23 to 14.79], p > .10). CONCLUSION: HFRT was associated with higher verbal IQ in children aged