Miracle-dz/UniFAR-FTUs huggingface dataset:
The Relationship Between Use of Alcohol, Other Drugs, and Crime Among Adolescents

Abstract This study consisted of a stratified random sample of 3,550 adolescents selected from 55 public school districts from a statewide population in the Midwest. The purpose was to replicate a previous study that tested the delinquency syndrome construct by examining the amount of overlap between alcohol consumption, use of other drugs, and crime using log-linear analysis. The overlap in various forms of delinquency also was examined according to age, gender, and race, with the hypotheses that these factors interact with the amount of overlap between the behaviors examined. In agreement with the previous study, the results support the delinquency syndrome, but they indicate less overlap than the delinquency syndrome construct suggests. Moreover, overlap between these forms of delinquency is moderated with age, gender and race; however, age does not account for enough variance in the multiple contingency table to be selected by log-linear procedures in the most parsimonious model. Implications of these findings for the syndrome construct are discussed.
Adolescent alcohol use and educational outcomes

There is some controversy over whether adolescent alcohol use has deleterious causal effects on educational outcomes. In particular, does drinking reduce academic performance and school enrollment rates and increase truancy, or does the observed negative correlation between drinking and educational outcomes merely reflect common unobservable factors? This dissertation sheds further light on the issue by estimating the causal impacts of alcohol use on various educational outcomes. Specifically, an instrumental variables model is estimated to study the effects of several drinking measures on grades, school enrollment and absenteeism.
Numerical Simulation of Uniaxial Compression of a Granular Material with Wall Friction

Computations of uniaxial compression of a granular material in a two-dimensional box (with the top plate moving downward) are presented, including the effects of wall friction. The granular flow equations are solved as a system of conservation laws plus a set of constitutive relations, using a conservative finite difference method. A high quality numerical scheme for propagating the moving top plate is introduced.Compared to the overall uniform compression of the granular material, the effects of friction lead to a greater compression of the material near the top corners and to a lesser compression near the bottom corners of the 2D box. Two flow cells develop in the velocity field of the granular material. The dependence of the flow on a set of dimensionless parameters is discussed. The evolution of a initially inhomogeneous density distribution is also simulated and analyzed.
Prolonged inhibition of nitric oxide synthesis in severe septic shock: a clinical study.

OBJECTIVES Inhibitors of nitric oxide synthesis have been suggested to be of value in the treatment of hypotension during sepsis. However, earlier clinical reports only describe the initial effects of these nitric oxide inhibitors. This study was designed to examine the effects of the prolonged inhibition of nitric oxide synthesis with N(omega)-nitro-L-arginine methyl ester (L-NAME) in patients with severe septic shock. DESIGN Prospective, nonrandomized, clinical study. SETTING Medical-surgical intensive care unit in a university hospital. PATIENTS Eleven consecutive patients with ongoing hyperdynamic septic shock that was unresponsive to fluid resuscitation and vasopressor therapy. INTERVENTIONS Measurements of hemodynamic, hematologic, and biochemical variables were made before, during, and after the start of a continuous intravenous infusion of 1 mg/kg/hr of L-NAME, an inhibitor of nitric oxide synthesis, for a period of 12 hrs. MEASUREMENTS AND MAIN RESULTS Continuous infusion of L-NAME resulted in a direct increase in mean arterial pressure from 65 +/- 3 (SEM) to 93 +/- 4 mm Hg and an increase in systemic vascular resistance from 426 +/- 54 to 700 +/- 75 dyne x sec/cm5, reaching a maximum at 0.5 hr. Pulmonary arterial pressure was increased from 31 +/- 2 to a maximum of 36 +/- 2 mm Hg at 1 hr, and pulmonary vascular resistance increased from 146 +/- 13 to a maximum of 210 +/- 23 dyne x sec/cm5 at 3 hrs. Paralleling these changes, cardiac output decreased from 10.8 +/- 0.8 to 8.7 +/- 0.7 L/min and oxygen delivery decreased from 1600 +/- 160 to 1370 +/- 130 mL/min (for all changes p < .05 as compared with the baseline value). Heart rate, cardiac filling pressures, oxygen consumption, urine production, arterial lactate concentration, and other biochemical parameters were not significantly changed by L-NAME administration (all p > .05). Arterial oxygenation was improved during L-NAME infusion, and the dosage of catecholamines could be reduced (both p< .05). Although sustained hemodynamic effects were seen, L-NAME was most effective during the early stages of administration, and the effect of L-NAME on blood pressure and vascular resistance tended to diminish throughout the continuous infusion of L-NAME. Seven of 11 patients ultimately died, with survival time ranging from 2 to 34 days. CONCLUSIONS Nitric oxide appears to play a role in cardiovascular derangements during human sepsis. The increased blood pressure and vascular resistance values are sustained during prolonged inhibition of nitric oxide synthesis with L-NAME in patients with severe septic shock, although the hemodynamic changes are most significant in the early stages of L-NAME infusion. The high mortality rate in these patients may suggest that L-NAME has only limited effects on outcome.
Duwas İşkoliklik Ölçeği Türkçe Formunun (DUWASTR) Geçerlik ve Güvenirliğinin İncelenmesi

The aim of this study is to adapt the Dutch Work Addiction Scale (DUWAS) into Turkish, which was developed by Schaufeli, Taris ve Bakker (2006) and to test the original two-factor structure with the present sample. The participants of the study were 379 employees (146 female / 233 male) who have different kinds of occupations. Ages ranged from 18 to 61 and the mean age is 34.45 (S=8.66). The psychometric properties of the scale were examined by item analysis, internal consistency and confirmatory factor analysis methods. The results of the confirmatory factor analysis showed a reasonable data fit with the two hypothesized DUWAS-TR domains of “Working Excessively” and “Working Compulsively”. Goodness fit indexes were found as χ2/sd=3.44, AGFI=0.087, GFI=0.92, CFI=0.91, IFI=0.91, RMSEA=0.080. The reliability of the scale was also satisfactory, showing good internal consistency. Internal consistency coefficient for the whole scale was . 85, for “Working Excessively” . 76 and for “Working Compulsively” . 74. These findings indicated that the Turkish form of DUWAS-TR is a valid and reliable instrument to assess work addiction. Kewords: Workaholic, work addiction, validity, reliability
HEALTH ASSESSMENT OF AMERICAN OYSTERCATCHERS (HAEMATOPUS PALLIATUS PALLIATUS) IN GEORGIA AND SOUTH CAROLINA

The American Oystercatcher (Haematopus palliatus palliatus) is the only species of oystercatcher native to the Atlantic coast of North America and is restricted in distribution to intertidal shellfish beds in coastal areas. Currently, the American Oystercatcher population in South Carolina and Georgia is threatened by widespread habitat loss, resulting in low reproductive success and small population size. Oystercatchers could be an important indicator of ecosystem health because they depend on quality coastal breeding habitat and prey on bivalves, which can accumulate toxins and pathogens from the local environment. Data were collected from American Oystercatchers (n=171) captured at five sites in South Carolina and Georgia between 2001 and 2006. Iridial depigmentation was frequently noted during physical examination and was more prevalent in female birds. Female birds were larger than males on average, but ranges for weight and morphometric measurements had considerable overlap. Mean values were calculated for hematology, plasma biochemistry, and hormone levels, and prevalence of exposure to select pathogens was determined. Mercury was the only trace metal detected in blood samples. These data provide baseline health information needed for longitudinal monitoring and conservation efforts for American Oystercatchers. In addition, this study illustrates the potential use of this species as an indicator for the health of the southeastern US coastal nearshore ecosystem.
Corrosion on Spinal Implants

Objective: Modular spine implants are used as an aid to obtaining fusion, but fretting and corrosion occur between modular components in a biologic environment. Methods: Forty-eight spinal implant constructs manufactured by a variety of companies were retrieved from 47 patients and were subjected to surface analysis stereomicroscopy. Results: Stainless-steel implants (n = 23) had either semirigid constructs with mild or no surface alteration (n = 7) or rigid constructs with moderate or severe alteration (n = 16). Surface damage was consistent with previously observed mechanically assisted crevice corrosion phenomena. Titanium alloy implants (n = 25) showed no significant corrosion but had three constructs with fatigue failure of anchoring screws. One cobalt alloy construct showed no evidence of corrosion. Conclusions: Long-term effects of fretting and corrosion are unclear, and minimization of these phenomena seems justified. Selection of modular components with similar materials and surface finish may help the surgeon minimize localized changes over time. Stainless-steel implants with rigid interconnections and those with different surface finishes between rods and connectors are most susceptible to corrosion.
(Psychological) Distance Makes the Heart Grow Fonder

Interpersonal attraction may be shaped by (a) one’s psychological distance from a target (the subjective experience that a target is close to or far from the self) and (b) the perceived standing of a target on a trait relative to the self (as better or worse than the self). We propose that when evaluating a psychologically distant target, individuals may rely on abstract schemas (e.g., the desirability of a partner’s traits) and prefer targets who possess more (vs. less) desirable qualities than themselves. However, when evaluating psychologically near targets, concrete contextual details of the environment (e.g., how a target’s behavior affects self-evaluations in the moment) may determine individuals’ attraction toward targets. Six studies revealed that when evaluating psychologically distant targets, men showed greater attraction toward women who displayed more (vs. less) intelligence than themselves. In contrast, when targets were psychologically near, men showed less attraction toward women who outsmarted them.
Evolving issues in police and immigrants’ relation in Finland: is it towards a structural interpretation?

The relation between police and immigrants has become a topic of scholarly fields of research as immigration has increased the number of new residents and people from a variety of countries and cultures into Finland. This new phenomenon has slowly changed the country to a multicultural society, thus requiring government agencies to adapt and adjust in the ways they provide services to the citizenry. Moreover, empirical research studies on minorities’ and immigrants’ perceptions of the police posit that certain factors are responsible for minorities’ lack of trust in the police. Little attention has been given to this issue in Finland. The aim of this study is to analyse and explore as well as add to the growing scholarly research on the perception and cooperation between immigrants and the police in Finland in order to address the factors that could possibly be responsible for immigrants’ lack of trust in the police. To address these issues, the study uses the experiences of 23 out of the 65 Africans whose ages range from 28 to 50+ who have resided in the country for five or more years. The findings indicate a depth of troublesome cross-cultural understanding between the participants and the police owing to differences in the policing styles in Finland and the respondents’ countries of origin. The concept of over-policing is analysed with a view to ensure the effective protection of the human rights of the participating immigrants within the country’s criminal justice system.
The measurement of forces exerted during colonoscopy.

BACKGROUND The widely varying forces used at colonoscopy have not been measured. An electronic device was designed to measure the forces exerted by the clinician on the endoscope during colonoscopy. METHODS The device featured a handle designed in the shape of a hinged split cylinder that could be locked around the endoscope but readily moved up and down the insertion tube as the colonoscopy proceeded. This cylinder contained strain-gauges arranged so that the forces transmitted could be accurately measured. The device recorded the torque forces in addition to the push and pull forces exerted during diagnostic colonoscopy. RESULTS In a series of 21 colonoscopies in 20 patients: peak pushing force = 4.4 kg, pulling force = -1.8 kg, anti-clockwise torque = 1.0 Newton meters, clockwise torque = 0.8 Newton meters. Percentage time force greater than 1 kg = 5%. Peak anal insertion force = 1.8 kg. CONCLUSIONS These measurements represent the first accurate measurements of the forces exerted during colonoscopy. Reducing the force during colonoscopy is likely to diminish pain and reduce the risk of perforation. A knowledge of these forces may also help with the design of new instruments and models for teaching or research.
Genefu: an R/Bioconductor package for computation of gene expression-based signatures in breast cancer

UNLABELLED Breast cancer is one of the most frequent cancers among women. Extensive studies into the molecular heterogeneity of breast cancer have produced a plethora of molecular subtype classification and prognosis prediction algorithms, as well as numerous gene expression signatures. However, reimplementation of these algorithms is a tedious but important task to enable comparison of existing signatures and classification models between each other and with new models. Here, we present the genefu R/Bioconductor package, a multi-tiered compendium of bioinformatics algorithms and gene signatures for molecular subtyping and prognostication in breast cancer. AVAILABILITY AND IMPLEMENTATION The genefu package is available from Bioconductor. http://www.bioconductor. org/packages/devel/bioc/html/genefu.html Source code is also available on Github https://github.com/bhklab/genefu CONTACT bhaibeka@uhnresearch.ca SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
Development of a novel polymeric fiber-optic magnetostrictive metal detector

The purpose this paper is the development a novel polymeric fiber-optic magnetostrictive metal detector, using a fiber- optic Mach-Zehnder interferometer and polymeric magnetostrictive material. Metal detection is based on the straininduced optical path length change steming from the ferromagnetic material introduced in the magnetic field. Varied optical phase shifts resulted largely from different metal objects. In this paper, the preliminary results on the different metal material detection will be discussed.
Lecithin: Cholesterol Acyltransferase and Na+-K+-ATPase Activity in Patients with Breast Cancer

Purpose The aim of this study was to determine whether plasma lecithin:cholesterol acyltransferase (pLCAT) and erythrocyte membrane Na+-K+-ATPase ase (emNaKATPs) activity have a correlation in breast cancer. This study compared these parameters at time points before and after treatment with radiotherapy. Methods The levels of pLCAT and emNaKATPs were assessed in 30 patients with breast carcinoma and 20 control subjects. While emNaKATPs was measured with spectrophotometric method, pLCAT levels was measured using a specific enzyme-linked immunosorbent assay. Results pLCAT levels, both before and after radiotherapy, were found to be decreased in breast cancer patients than in the controls groups (p<0.001 and p<0.001, respectively). Also, pLCAT levels after radiotherapy were found to be decreased in breast cancer patients than the pLCAT levels before radiotherapy (p<0.001). The emNaKATPs activity were higher in the control group than in the breast cancer patients before/after radiotherapy (RT) (p<0.001 and p<0.001, respectively). At the same time, emNaKATPs activity before RT was higher in the breast cancer patients than emNaKATPs activity after RT (p<0.001). There was a significant correlation between pLCAT and emNaKATPs activity in breast cancer patients receiving radiotherapy (r=0.63, p<0.001), but no correlation between in breast cancer patients before RT and control group (r=0.023, p>0.05). Conclusion The results of the present study demonstrated that decreased pLCAT and emNaKATPs activity levels in breast cancer patients after/before RT than control group. In addition, decreased emNaKATPs activity in breast cancer patients receiving radiotherapy may be due to decreased pLCAT concentrations and RT beam. In our opinion, altered activities of pLCAT and emNaKATPs are linked to the treatment effect of radiotherapy. These data may clarify the development of cell membrane dysfunction and lipid metabolism in breast cancer patients receiving radiotherapy.
The social psychology of groups

This landmark theory of interpersonal relations and group functioning argues that the starting point for understanding social behavior is the analysis of dyadic interdependence. Such an analysis portrays the ways in which the separate and joint actions of two persons affect the quality of their lives and the survival of their relationship. The authors focus on patterns of interdependence, and on the assumption that these patterns play an important causal role in the processes, roles, and norms of relationships. This powerful theory has many applications in all the social sciences, including the study of social and moral norms; close-pair relationships; conflicts of interest and cognitive disputes; social orientations; the social evolution of economic prosperity and leadership in groups; and personal relationships.
Evolutionary relationships among ammonia- and nitrite-oxidizing bacteria

Comparative 16S rRNA sequencing was used to evaluate phylogenetic relationships among selected strains of ammonia- and nitrite-oxidizing bacteria. All characterized strains were shown to be affiliated with the proteobacteria. The study extended recent 16S rRNA-based studies of phylogenetic diversity among nitrifiers by the comparison of eight strains of the genus Nitrobacter and representatives of the genera Nitrospira and Nitrospina. The later genera were shown to be affiliated with the delta subdivision of the proteobacteria but did not share a specific relationship to each other or to other members of the delta subdivision. All characterized Nitrobacter strains constituted a closely related assemblage within the alpha subdivision of the proteobacteria. As previously observed, all ammonia-oxidizing genera except Nitrosococcus oceanus constitute a monophyletic assemblage within the beta subdivision of the proteobacteria. Errors in the 16S rRNA sequences for two strains previously deposited in the databases by other investigators (Nitrosolobus multiformis C-71 and Nitrospira briensis C-128) were corrected. Consideration of physiology and phylogenetic distribution suggested that nitrite-oxidizing bacteria of the alpha and gamma subdivisions are derived from immediate photosynthetic ancestry. Each nitrifier retains the general structural features of the specific ancestor's photosynthetic membrane complex. Thus, the nitrifiers, as a group, apparently are not derived from an ancestral nitrifying phenotype.
Building an organizational change communication theory

The difficulty of communicating during organizational change has intensified with the prevalence of continuously changing organizations (Buchanan, Claydon & Doyle, 1999). The difficulty faced by managers is compounded by the lack of studies examining organizational communication within a context of organizational change (Eisenberg, Andrews, Murphy, & Laine-Timmerman, 1999; Lewis & Seibold, 1996). Not surprisingly then, is there a paucity of organizational change theory to guide further research and practitioners. This paper addresses the lack of organizational change communication research and contributes to theoretical development of communication during organizational change. A model of change communication during continuous change is presented from the analysis of two longitudinal empirical studies. Central constructs of the model are the monologic change communication, the dialogic change communication and the background talk of change. Further Van de Ven and Poole's (1995) Process Theories of Change are extended to consider the sequencing of the three constructs. The findings suggest that the sequencing of the dominant change communication approaches is informed by an alignment of individual communication competences and organizational change communication expectations.
MobiSteer: using steerable beam directional antenna for vehicular network access

In this work, we investigate the use of directional antennas and beam steering techniques to improve performance of 802.11 links in the context of communication between amoving vehicle and roadside APs. To this end, we develop a framework called MobiSteer that provides practical approaches to perform beam steering. MobiSteer can operate in two modes - cached mode - where it uses prior radiosurvey data collected during "idle" drives, and online mode, where it uses probing. The goal is to select the best AP and beam combination at each point along the drive given the available information, so that the throughput can be maximized. For the cached mode, an optimal algorithm for AP and beam selection is developed that factors in all overheads. We provide extensive experimental results using a commercially available eight element phased-array antenna. In the experiments, we use controlled scenarios with our own APs, in two different multipath environments, as well as in situ scenarios, where we use APs already deployed in an urban region - to demonstrate the performance advantage of using MobiSteer over using an equivalent omni-directional antenna. We show that MobiSteer improves the connectivity duration as well as PHY-layer data rate due to better SNR provisioning. In particular, MobiSteer improves the throughput in the controlled experiments by a factor of 2 - 4. In in situ experiments, it improves the connectivity duration by more than a factor of 2 and average SNR by about 15 dB.
Erythroid Krüppel‐like factor exhibits an early and sequentially localized pattern of expression during mammalian erythroid ontogeny

Erythroid Krüppel‐like factor (EKLF) is an erythroid cell‐specific transcription factor that mediates activation via binding to a 9 base pair sequence that encompasses the CACCC element, one of a trio of evolutionarily conserved sequence motifs that are functionally important for transcription of red cell‐specific genes. Molecular analyses have delineated the specificity of its interaction and activation through the CAC site at the adult β‐globin promoter. However, its expression and distribution during murine ontogeny have not been established. To address these issues, we have focused on biological aspects of EKLF expression by examining the onset and localization of its mRNA during murine development by using reverse transcription/polymerase chain reaction (RT/PCR) analysis of differentiating embryonic stem cells and in situ analyses of normal developing embryos. In addition, we have monitored the presence of EKLF protein by blot analysis of whole‐cell extracts derived from circulating cells and embryonic tissue.