Miracle-dz/UniFAR-FTUs huggingface dataset:
Does Ownership Breadth Predict Stock Returns? New Evidence from Market- Wide Holdings Data *

We test how ownership breadth predicts stock returns. Using holdings data on a representative Shanghai Stock Exchange investor sample from 1996 to 2007, we find that cross-sectionally, high breadth change quintile stocks underperform low breadth change quintile stocks by 22 percent per year, a result driven by retail investor ownership breadth. This is consistent with breadth increases primarily reflecting greater popularity among noise traders rather than the easing of short-sales constraints. In the time series, high average ownership breadth changes across stocks predict a low Chinese stock market return in the next month, and may predict higher market return skewness.
Investigating undergraduate business internships: Do supervisor and self-evaluations differ?

ABSTRACT The authors analyze consistency between supervisors' and interns' self-evaluations based on interns' gender, time of completion (summer or academic year), and sponsor (on-campus department or off campus). Students, in general, tended to have lower ratings for computer skills, relative to supervisors, suggesting that they do not appreciate the skills that they possess. When student self-evaluations differed from those of supervisors, women gave themselves lower ratings than supervisors, whereas the opposite was seen for men. When evaluations differed, students completing on-campus internships tended to rate themselves higher than their supervisors, whereas the opposite was seen for students completing off-campus internships. Suggestions for better advising and preparing students, in advance of completing internships, are provided.
New Convolutional Encoders for Spectral Line Suppresion in Pulse Position Modulated Time Hopping Impulse Radio Ultra Wideband Systems

The topic of spectral line suppression is of major interest in the design of pulse position modulated (PPM) time hopping impulse radio (TH-IR) ultra wideband (UWB) communications systems. Previously pseudo-chaotic time hopping (PCTH) has been introduced to eliminate spectral lines as well as improving bit error rates. In this paper six new convolutional encoders are introduced that have the same constraint lengths and power spectral characteristics as those used in PCTH but with better binary free distance. BERs for hard decision Viterbi decoding are also improved upon by the computation of branch metrics based on the m-ary symbols rather than their binary representations.
Mammary carcinoma in a mare: clinical, histopathological and steroid hormone receptor status.

Summary The aim of this paper is to describe the clinical, histopathological and immunohistochemical findings of a mammary carcinoma in a 22-year-old, 10 month pregnant, thoroughbred mare. The clinical examination of the right mammary gland showed a firm enlargement and purulent discharge from the ulcerated skin surface and the teat. During necropsy visceral metastases were not found but inguinal lymph nodes presented metastatic infiltrations when observed histologically. None of the previous reports found positive immunohisthochemical reactions for estrogen and progesteron receptors in an equine mammary adenocarcinoma. However, the findings of positive immunoreactivity to steroid receptors could suggest a hormonal influence on the genesis of the mammary neoplasm, as demonstrated in human breast cancer. der neoplastischen Epithelzellen festgestellt. In dem noch gesundem Gesäugegewebe gab es eine positive Reaktion auf Östrogenrezeptoren und auf Progesteronrezeptoren. Dieser erste Fall eines positiven immunhistochemischen Steroid-hormonrezeptornachweises beim Pferd könnte für einen hormonellen Einfluss bei der Genese der Mammatumoren sprechen, wie es bei Mammatumoren des Menschen bekannt ist.
Nonlinear holographic associative memories

In associative memories the output data is recalled directly using the input data itself, without the use of separate addresses as it is the case in usual computer memories, where a separate unique address points to each stored datum. Associative memories have error correction and data completion properties in that a complete undistorted set of data can be retrieved using a distorted or partial version of input data. The aim of this thesis is the design, demonstration and investigation of an all-optical associative memory. We present a new scheme which belongs to the class of the nonlinear holographic associative memories. It is based on a VanderLugt correlator in connection with a saturable absorber for thresholding and a phase conjugating mirror for readout. The correlator utilises a photorefractive LiNb03 crystal for long term data storage. The volume nature of the stored holograms increases the storage capacity of the associative memory. The nonlinearity, which is introduced in order to decide which stored object is the most similar one to the input object, is a novel saturable absorber. It consists of polymethylmetacrylate that is doped with dye molecules. The simultaneous illumination of this material with ultraviolet and blue light allows it to function as a saturable absorber for blue light i.e. weak beams are strongly absorbed by the material whereas strong beams see no absorption. The transmission threshold of the absorber can easily be shifted over a wide intensity range by adjusting the ultraviolet intensity. The thresholding behaviour of this device is analysed and tested. It is shown that such an element is useful for thresholding of the reconstructed reference beams in an associative memory due to the simplicity of the optical system. The reconstructed reference beams are amplified using photorefractive two wave mixing in a KNbC>3 crystal and phase conjugated via degenerate four wave mixing in another photorefractive KNbC>3 crystal. Due to the thresholding only one of the reconstructed reference beams has a nonnegligible intensity by the time it addresses the storage crystal. This beam reads out the stored and associated object, which can be observed on a screen. The associative readout properties of this system are analysed and experimentally demonstrated. With this implementation of an all-optical associative memory ten black-and-white objects are successfully recovered using only partial inputs. This is the largest number of stored and associative readout objects in nonlinear holographic associative memories published. Associative readout of grey scale images is also shown. We demonstrate that only a very small amount (= 1/500) of one of the stored objects has to be present at the input plane in order to associate the correct object and get full reconstruction of the stored data. The readout time is one second and is limited by the response time of the
Young children's collaborative interactions in an educational computer environment

This study investigated the collaborative interaction patterns exhibited by five-yearold pre-primary children in an educational computer environment. The case study method was used in one pre-primary centre in metropolitan Perth, Western Australia, to examine the patterns of collaborative interaction among young children whilst engaged with the computer. The one event case study was of the interactions exhibited by pre-primary children whilst engaged, in dyads, with the computer within a naturalistic classroom environment. This study involved three phases of data collection. Phase I consisted of observations and videotaping sessions, compilation of written observations, narrative descriptions and relevant field notes on each participant. To assess the children's current social skills and computer competence and their general social interaction with peers, the researcher interviewed the children and their teacher using a semi-structured interview schedule to guide the discussion. Phase IT comprised reviewing and transcribing the videotapes and coding children's interactions, while Phase III consisted of analysing all the data obtained. Both observational comments and descriptions and data analyses were presented with anecdotes. 243 interactions were identified and classified into 16 interaction patterns. They were: directing partner's actions; self-monitor/repetition; providing information; declarative planning; asking for information/explanation; disagreeing with partner; accepting guidance; terminal response; exclaiming; correcting others; defending competence; showing pleasure; showing displeasure; sharing control; defending control; and suggesting ideas. Frequency of occurrence of identified interactions was analysed in the form of descriptive statistics. Factors facilitating the collaborative interaction of children whilst engaged with the computer activities were found to be: developmental appropriateness of the software; preexisting computer competency between children; children's preexisting positive attitude towards computer; mutual friendship between collaborators; children's social goals; appropriate structure of enjoyable learning environment; mutual understanding of turn-taking system; and positive non-isolated physical settings of the computer environment. Factors inhibiting collaborative
Job and life satisfaction among rural physicians. Results of a survey.

: Results of a survey of approximately half of Minnesota's rural physicians show that these physicians appear to be well-satisfied with their jobs (average rating of 2.5 on a five-point scale with 2 = very satisfied and 3 = moderately satisfied). In aggregate, areas of greatest job satisfaction are the diversity of patients physicians see, physicians' contact with others, and their ability to derive personal gratification from patient care. Salary/income was not a source of dissatisfaction. Areas of least satisfaction are physicians' opportunities for promotion, their ability to remain knowledgeable, and their role in making organizational and administrative decisions. Rural Minnesota physicians feel least work stress about their feelings of clinical competence/interpersonal relations at work and anxieties about the future. Areas of greatest stress focus on time pressures and realities of medical practice, i.e., being reimbursed by third-party payers and meeting the need for certainty when medical knowledge only allows for approximation. These physicians are reasonably happy with their lives in general (5.4 on a seven-point scale with 7 = delighted, 1 = terrible). In aggregate, areas of lowest life satisfaction are physicians' social relations, leisure activities, and finances. Examination of subgroups shows that women are statistically less satisfied with their living situations; younger physicians are less satisfied with their work, their living situations, and their leisure activities; physicians who spend more than 10 hours per week on administrative duties are less satisfied with their living and social situations; and physicians who see more than 100 patients per week are less satisfied with their social relations.
Prevalence and risk factors of gallstone disease in patients undergoing ultrasonography at Mulago hospital, Uganda

Background Gallstone disease (GSD) is the most prevalent medical condition in the pancreatobiliary system. The burden of GSD and its complications are major public health issues globally. It is a common cause of surgical intervention, contributing substantially to health care costs. Most patients are asymptomatic, however 20% become symptomatic after 10 years. Its prevalence differs among populations and remains unknown in Uganda. Objective To determine the prevalence and risk factors of GSD in patients undergoing abdominal ultrasonography at Mulago hospital, Uganda. Methods This was a cross-sectional study at the Department of Radiology in Mulago hospital. Convenient sampling was used to recruit individuals having an abdominal ultrasound scan. Questionnaires were used to assess risk factors, and an abdominal exam was performed for individuals with gallstones to assess symptomatology. Results The prevalence of GSD was 22%. Statistically significant factors associated with GSD were a history of hormonal contraceptive use OR 3.2 (1.88–5.41) and a history of previous biliary symptoms OR 2.9 (1.68–4.91). Ninety-four percent of individuals with gallstones had epigastric/right upper quadrant pain. Conclusion The prevalence of GSD is high in Mulago hospital; use of hormonal contraceptives and a previous history of biliary symptoms were significant risk factors for GSD in this study. Majority of patients with GSD were symptomatic with epigastric pain as the cardinal symptom. We recommend a countrywide screening program using abdominal ultrasonography to determine the prevalence of GSD in the general population. There is need to study further the risk of hormonal contraceptive use and GSD. Women on these contraceptives should be informed of the potential risk, and offered alternative options where feasible.
Survival of CD23-positive (CD23+) mantle cell lymphoma (MCL) compared to classic CD23-negative (CD23-) MCL: Biologic correlates and clinical outcomes in a 10-year analysis

8039 Background: MCL has been historically classified as CD23-, but CD23+ immunophenotype (IP) is identified in a significant minority of patients (pts). It is unclear whether clinicopathologic or survival differences exist between CD23- and CD23+ MCLs. Methods: MCL diagnosis was based on morphology, IP with associated cyclinD1-positivity and/or t(11;14). We identified MCL pts treated at our institution from 1997–2006. We investigated IP (CD23 by flow cytometric analysis), pt characteristics, prognostic factors, and survival. Results: We identified 54 pts (16F/38M), of whom 89% had stage IV disease, IPI = 3 in 57%, 38% elevated LDH, 26% high B2- microglobulin, 30% bulky disease (= 7cm), and 39% with peripheral blood involvement. Thirty-three pts (61%) had CD23- disease, 14 (26%) CD23+ MCL, and 7 (13%) had variable CD23 expression (CD23+/CD23- varied in tissue sites). The only clinicopathologic differences between CD23- and CD23+ pts were increased incidence of extranodal disease (besides marrow or gastroi.
Health-related Quality of Life of Fallers vs. Non-fallers in Community-dwelling Elderly People

Abstract Purpose: The purpose of the study was to compare levels of health-related quality of life (HRQOL) between fallers and non-fallers among community-dwelling elderly people. Methods: A cross-sectional comparative study was conducted with the secondary analysis of 2,067 elderly people registered in S-Gu Visiting Health Care Program in Seoul, South Korea. Participants were 206 fallers and 206 non-fallers who were age- and sex-matched with fallers. HRQOL was measured by SF-8 including physical component summary (physical HRQOL) and mental component summary (mental HRQOL). Results: There were more people in the faller group having more than or equal to three chronic diseases ( p <.001), living in multiplex houses ( p =.004), and being dependent by the activities of daily living (ADL) ( p =.001) and instrumental ADL (IADL) levels (p<.001) than those in the non-faller group. Fallers had higher levels of depression than non-fallers ( p <.001). Moreover, fallers had significantly lower levels of both
Perceived social support of family members of aged care facility residents and its relationship with family members well-being and their support of relatives in residential care

When elderly people are cared for In Aged care Facilities (ACFs) it Is known that their family members frequently suffer negative effects. These effects may be alleviated by soda! support and, because they feel better, family members may then offer more support to residents. In this study, the researcher tested a mode! with a sa<nple of 213 family members of ACF residents. Predictive relationships were hypothesised among Incentives for family members to support residents, stress related factors, the perceived formal and Informal support of family members, their psychological wellbeing, and the support they offered to residents. The researcher also developed the Relatives' of Aged Care Residents Assessment of Staff Support Tool (RACRASST) to measure family members' perceptions of support from the staff. The researche1· developed the RACRASST from data obtained at interviews with family members of ACF residents and ACF staff, and from a review of the literature. The Instrument underwent testing and refinement procedures, Including a factor analysis. Thete51:-retest reliability co-efficient for the scale was found to be 0.99 over 2-3 days. As used i1 the stud(, the RACRASST was a 29-ltem unidimensional scale. Response options ranged from Strongly Disagree to Strongly Agree. A not applicable option was retained to Identify Items needing review. Items referred to staff/family member communication, staff care activities, staff use of the environment, and family members' perceptions of a reliable alliance between themselves and the staff. The instrument was re-examined during the study and two items were deleted because of a high percentage of missing/not applicable responses. Cronbach's alpha co-efficient for the 27-ltem RACRASST was 0.96.
The Prevalence of Burnout and Its Association With Types of Capital Among Female Nurses in West of Iran

Background: Burnout is a common syndrome associated with job stresses in the health sector personnel, especially female nurses. Objectives: The aim of this study was to investigate burnout and its association with types of capital among female nurses in educational hospitals of Kermanshah University of Medical Sciences. Patients and Methods: This was a retrospective cross-sectional study. The study population was all female nurses working in educational hospitals of Kermanshah University of Medical Sciences. Participants completed a questionnaire containing three parts as: Maslach Burnout Inventory, the types of capital and sociodemographic characteristics. Data Analysis was done using SPSS version 18. Results: In total, 40% of female nurses had a high level of burnout. The mean scores of the emotion exhaustion, depersonalization and personal accomplishment were 33.7, 16 and 25.7, respectively. In addition, 50% of female nurses had a high social capital, 86% of them had a moderate economic capital and 49.3% had a low cultural capital. Finally, there were significant negative correlations between burnout and capital types (economic, cultural and social). Conclusions: The prevalence of burnout among nurses is high. Capital types had a positive impact on reducing burnout. Therefore, maintaining capital types should be considered to decrease burnout in nurses.
Serum amyloid A concentration in foals – Can it help when making a treatment decision in foals with pneumonia?

Bronchopneumonia is a frequent and serious pulmonary disorder in foals on equine breeding farms and the most common pathogens responsible for this condition are Streptococcus equi ssp. zooepidemicus (Strep. eq. ssp. zoo.) and Rhodococcus equi (R. equi). As foal pneumonia occurs endemically on many studs worldwide, practitioners are asked to evaluate regularly all foals in order to detect early affected foals and reduce the losses. Some of those will show neither clinical symptoms nor hematological changes but obvious pulmonary lesions at sonography. Consequently the question of treating these foals will rise. The aim of the study was to evaluate the serum amyloid A (SAA) concentration in clinically healthy or mildly sick foals showing either no findings, moderate or severe findings at lung sonography. The investigation was a prospective study. A total of 33 foals were examined once weekly starting at the age of two weeks over a period of four months. Clinical signs, body temperature, ultrasonographical pulmonary findings and haematological findings including WBC count and SAA serum concentrations were monitored. After each sonographical examination of the lung, the diameters of pulmonary consolidations were added to obtain an abscess score that represents the severity of pulmonary disease of these foals. The frozen serum samples of the 33 foals were analysed at different stages of pneumonia. Altogether, 49 samples of healthy state (abscess score=0cm), 31 of moderately sick state (abscess score=1–9cm, no indication for treatment) and 22 of severe pulmonary damage (abscess score >10cm, indication for treatment) were analysed by enzyme-linked immunosorbent assay to determine the SAA concentration. The median SAA was 18μg/ml (25th percentile: 1.5μ/ml; 75th percentile: 52.7μg/ml) in the healthy foals, 5. 6μg/ml (25th: 2.4μg/ml; 75th: 82.3μg/ml) in the moderately sick foals and 80. 2μg/ml (25th: 79.3μg/ml; 75th: 160μg/ml) in the foals requiring treatment. These results show that the SAA concentration might be considered as an efficient parameter for making a treatment decision in foals in the early course of pneumonia.
Indigenous management of Dystocia in ruminant livestock of northern guinea savanna of Nigeria

This study, conducted in Bauchi and Zaria areas of the northern guinea savanna zone of Nigeria involved livestock that encountered problems during parturition Ninety eight Hausa-Fulani livestock holdings involving cattle, sheep and goats were investigated. The study focused on causes of and remedies for dystocia. The study showed that farmers have traditional means of handling difficult birth in ruminants. The identifiable causes of dystocia included age and size of dam, abnormal foetal presentation, poor health, multiple foetuses and weight and sex of the young. The management of this problem included the use of hand to correct foetal position, lubrication of the vulva-vagina passage with mashed okra fruit for easy passage, and oral administration of solutions from native herbs, snake scales, potash and ashes. Keywords: Traditional knowledge, Dystocia, ruminants, Nigeria
Propriétés physiques de bétons de chanvre

Le beton de chanvre est un biomateriau composite leger obtenu en melangeant un liant a base de chaux hydraulique et aerienne, des particules vegetales et de l’eau. Ce materiau n’est pas porteur ce qui conduit a l’utiliser principalement en materiau de remplissage associe a une ossature bois, trois procedes de mise en œuvre etant possible. Dans cette etude, differentes formulations utilisees pour le montage de paroi sont etudiees. La mise en œuvre est faite par trois procedes. Une relation de type loi-puissance est mise en evidence entre la resistance a la compression et la densite apparente. Des mesures de la conductivite thermique en fonction de la masse volumique et de la teneur en eau permettent de definir la capacite d’isolation des materiaux. La caracterisation hydrique qui repose sur les capacites de stockage et de transfert d’humidite des materiaux est realisee par la determination des isothermes de sorption-desorption et de la permeabilite a la vapeur.