Reciprocal Relations Between Traumatic Stress and Physical Aggression During Middle School

There is convincing evidence that demonstrates traumatic stress and aggressive behavior are highly related among adolescents. The evidence is less clear regarding the direction of this relation. The purpose of this study was to examine the reciprocal longitudinal relations between physical aggression and traumatic stress among a predominantly African American sample of middle school students. Support was found for traumatic stress predicting increased levels of physical aggression across the winter to the spring of the sixth grade for boys and across all waves from the fall of the seventh grade to the fall of the eighth grade for both boys and girls. Conversely, physical aggression during the winter of the sixth grade predicted a decrease in traumatic stress in the spring of the sixth grade for both boys and girls. These findings suggest that interventions may need to incorporate skills that are aligned with trauma-informed care practices in order to reduce traumatic stress and physical aggression among adolescents

Cultural Losses and Cultural Gains: Ethical Dilemmas in WWII-Looted Art Repatriation Claims Against Public Institutions

Alongside their campaign of physically exterminating the Jewish population of Europe, the Nazis carried out a highly organized plan of cultural genocide which involved the confiscation or forced sale of hundreds of thousands of pieces of art. Although a sizable number of these works were returned to their owners or their heirs by the Allied forces after the war, many disappeared into the hands of private possessors. Many remain hidden in private collections, but a number of these artworks were given to or purchased by museums or other public institutions. In recent decades, the heirs of Holocaust victims have been using the American court system to make claims for the return of these artworks. This article examines one little examined, but ethically problematic aspect of these claims: the fact that the vast majority of them are made against public institutions rather than private collectors. The article begins with a short survey of the history of art looting during World War II and explains the proliferation of legal claims for restitution of looted art in the late 1980s, with the majority of these claims made against public institutions. Part II of the article then discusses the public interest in keeping art in museums. Part III lays out the current state of relevant statutory and case law, leading to an analysis of the reasons why claims are easier to make against museums and other public institutions than against private collectors. Part IV continues with a exploration of the goals and attitudes of both claimants and their attorneys, and the ethical dilemmas inherent in making claims against public institutions. Finally, Part V proposes a better means for heirs, their attorneys, and museums to work together to preserve both the private and the public good

A case study of academic facilitation of the global illicit trade in cultural objects: Mary Slusser in Nepal

In this article, we consider the role that academics play in the global illicit trade in cultural objects. Academics connect sources to buyers and influence market values by publishing looted and stolen cultural objects (passive facilitation) and by collaborating with market players, including by collecting artifacts themselves (active facilitation). Their actions shape market desire, changing what is targeted for looting, theft, and illicit trading across borders. However, this crucial facilitative role often goes unnoticed or unaddressed in scholarship on collecting, white collar crime, and the illicit market in cultural objects. This article explores the importance of academic facilitation through a case study of the career of Mary Slusser, a renowned American scholar of Nepali art and art history

Evaluation of the Problem Behavior Frequency Scale-teacher Report Form for Assessing Behavior in a Sample of Urban Adolescents

© 2018 American Psychological Association. This study evaluated the structure and validity of the Problem Behavior Frequency Scale-Teacher Report Form (PBFS-TR) for assessing students\u27 frequency of specific forms of aggression and victimization, and positive behavior. Analyses were conducted on two waves of data from 727 students from two urban middle schools (Sample 1) who were rated by their teachers on the PBFS-TR and the Social Skills Improvement System (SSIS), and on data collected from 1,740 students from three urban middle schools (Sample 2) for whom data on both the teacher and student report version of the PBFS were obtained. Confirmatory factor analyses supported first-order factors representing 3 forms of aggression (physical, verbal, and relational), 3 forms of victimization (physical, verbal and relational), and 2 forms of positive behavior (prosocial behavior and effective nonviolent behavior), and higher-order factors representing aggression, victimization, and positive behavior. Strong measurement invariance was established over gender, grade, intervention condition, and time. Support for convergent validity was found based on correlations between corresponding scales on the PBFS-TR and teacher ratings on the SSIS in Sample 1. Significant correlations were also found between teacher ratings on the PBFS-TR and student ratings of their behavior on the Problem Behavior Frequency Scale-Adolescent Report (PBFS-AR) and a measure of nonviolent behavioral intentions in Sample 2. Overall the findings provided support for the PBFS-TR and suggested that teachers can provide useful data on students\u27 aggressive and prosocial behavior and victimization experiences within the school setting

Ode to the Sea: Art from Guantanamo

Exhibition catalogue for “Ode to the Sea: Art from Guantánamo” (October 16, 2017-January 26, 2018, President\u27s Gallery, John Jay College of Criminal Justice, New York). Detainees at the United States military prison camp known as Guantánamo Bay have made art from the time they arrived. The exhibit displays some of these evocative works, made by eight men: four who have since been cleared and released from Guantánamo, and four who remain there. They paint the sea again and again although they cannot reach it. The catalog includes contributions by Trevor Paglen, Solmaz Sharif, Natasha Trethewey, Jericho Brown, and current and former detainees

A general scheme for modeling gamma-ray burst prompt emission

We describe a general method for modeling gamma-ray burst prompt emission. We find that for the burst to be produced via the synchrotron process unphysical conditions are required -- the distance of the source from the center of the explosion ($R_\gamma$) must be larger than $\sim 10^{17}$cm and the source Lorentz factor \gta 10^3; for such a high Lorentz factor the deceleration radius ($R_d$) is less than $R_\gamma$ even if the number density of particles in the surrounding medium is as small as $\sim 0.1$ cm$^{-3}$. The result, $R_\gamma > R_d$, is in contradiction with the early x-ray and optical afterglow data. The synchrotron-self-Compton (SSC) process fares much better. There is a large solution space for a typical GRB prompt emission to be produced via the SSC process. The prompt optical emission accompanying the burst is found to be very bright (\lta 14 mag; for $z\sim2$) in the SSC model, which exceeds the observed flux (or upper limit) for most GRBs. Continuous acceleration of electrons can significantly reduce the optical flux and bring it down to the observed limits. (Abridged)Comment: Published in MNRAS Jan 2008, 56 page

Comparison of Methods for Modeling Fractional Cover Using Simulated Satellite Hyperspectral Imager Spectra

Remotely sensed data can be used to model the fractional cover of green vegetation (GV), non-photosynthetic vegetation (NPV), and soil in natural and agricultural ecosystems. NPV and soil cover are difficult to estimate accurately since absorption by lignin, cellulose, and other organic molecules cannot be resolved by broadband multispectral data. A new generation of satellite hyperspectral imagers will provide contiguous narrowband coverage, enabling new, more accurate, and potentially global fractional cover products. We used six field spectroscopy datasets collected in prior experiments from sites with partial crop, grass, shrub, and low-stature resprouting tree cover to simulate satellite hyperspectral data, including sensor noise and atmospheric correction artifacts. The combined dataset was used to compare hyperspectral index-based and spectroscopic methods for estimating GV, NPV, and soil fractional cover. GV fractional cover was estimated most accurately. NPV and soil fractions were more difficult to estimate, with spectroscopic methods like partial least squares (PLS) regression, spectral feature analysis (SFA), and multiple endmember spectral mixture analysis (MESMA) typically outperforming hyperspectral indices. Using an independent validation dataset, the lowest root mean squared error (RMSE) values were 0.115 for GV using either normalized difference vegetation index (NDVI) or SFA, 0.164 for NPV using PLS, and 0.126 for soil using PLS. PLS also had the lowest RMSE averaged across all three cover types. This work highlights the need for more extensive and diverse fine spatial scale measurements of fractional cover, to improve methodologies for estimating cover in preparation for future hyperspectral global monitoring missions

Near-Infrared Monitoring of Volatiles in Frozen Lunar Simulants While Drilling

In Situ Resource Utilization (ISRU) focuses on using local resources for mission consumables. The approach can reduce mission cost and risk. Lunar polar volatiles, e.g. water ice, have been detected via remote sensing measurements and represent a potential resource for both humans and propellant. The exact nature of the horizontal and depth distribution of the ice remains to be documented in situ. NASA's Resource Prospector mission (RP) is intended to investigate the polar volatiles using a rover, drill, and the RESOLVE science package. RP component level hardware is undergoing testing in relevant lunar conditions (cryovacuum). In March 2015 a series of drilling tests were undertaken using the Honeybee Robotics RP Drill, Near-Infrared Volatile Spectrometer System (NIRVSS), and sample capture mechanisms (SCM) inside a 'dirty' thermal vacuum chamber at the NASA Glenn Research Center. The goal of these tests was to investigate the ability of NIRVSS to monitor volatiles during drilling activities and assess delivery of soil sample transfer to the SCMs in order to elucidate the concept of operations associated with this regolith sampling method

Sedentary behavior is associated with colorectal adenoma recurrence in men

Purpose The association between physical activity and colorectal adenoma is equivocal. This study was designed to assess the relationship between physical activity and colorectal adenoma recurrence. Methods Pooled analyses from two randomized, controlled trials included 1,730 participants who completed the Arizona Activity Frequency Questionnaire at baseline, had a colorectal adenoma removed within 6 months of study registration, and had a follow-up colonoscopy during the trial. Logistic regression modeling was employed to estimate the effect of sedentary behavior, light-intensity physical activity, and moderate-vigorous physical activity on colorectal adenoma recurrence. Results No statistically significant trends were found for any activity type and odds of colorectal adenoma recurrence in the pooled population. However, males with the highest levels of sedentary time experienced 47 % higher odds of adenoma recurrence. Compared to the lowest quartile of sedentary time, the ORs (95 % CIs) for the second, third, and fourth quartiles among men were 1.23 (0.88, 1.74), 1.41 (0.99, 2.01), and 1.47 (1.03, 2.11), respectively (p trend = 0.03). No similar association was observed for women. Conclusions This study suggests that sedentary behavior is associated with a higher risk of colorectal adenoma recurrence among men, providing evidence of detrimental effects of a sedentary lifestyle early in the carcinogenesis pathway