Miracle-dz/UniFAR-FTUs huggingface dataset:
A Frequency Reconfigurable Printed Yagi-Uda Dipole Antenna for Cognitive Radio Applications

A frequency reconfigurable printed Yagi-Uda antenna is presented for cognitive radio applications. A 46% continuous frequency tuning bandwidth is obtained by loading the driver dipole arms and four directors with varactor diodes. This configuration allows a high-gain and an almost constant end-fire pattern to be maintained while the antenna operating frequency is tuned. A parametric study was undertaken considering the inter-director spacing, director length tapering, and reflector geometry. It was found possible over the band that the front-to-back ratio is >; 16 dB, the sidelobe level is <; -14 dB and the cross polarization levels in the principal planes are <; - 15.5 dB. From 1-dB compression point measurements, the maximum input power of the antenna with the present diodes is limited to 17.6 dBm at 700 MHz. This suggests that reconfigurable antennas which use active components should have an IIP3 specification placed on them. The frequency selective feature of the antenna makes it as an attractive user terminal antenna for fixed point-to-multipoint cognitive radio enabled broadband wireless access.
Review: Quality of Mental Health Care for Nursing Home Residents: A Literature Review

Because of the high proportion of nursing home residents with a mental illness other than dementia, the quality of mental health care in nursing homes is a major clinical and policy issue. The authors apply Donabedian’s framework for assessing quality of care based on the triad of structure, process, and outcome-based measures in reviewing the literature on the quality of mental health care in nursing homes. Quality measures used within the literature include mental health consultations and hospitalizations, inappropriate use of medications, and mental health survey deficiencies. Factors related to the resident’s welfare (nurse staffing), provider norms (locality), and financial factors (payer mix) were associated with the quality of mental health care. Although future research is necessary, the extant literature suggests that persons with mental illness are frequently admitted to nursing homes and their care is often of poor quality and related to a series of resident and facility factors.
Dementia PRESERVED KNOWLEDGE OF SELF IN A CASE OF ALZHEIMER ’ S DEMENTIA

We report the case of K.R. , an individual with Alzheimer’s dementia. Although K.R. has difficulty retrieving even mundane facts about the world, she has accurate knowledge of her own personality. But the self she knows is out–of–date. K.R. ’s inability to update her trait self–knowledge stands in contrast to other neuropsychological cases in which individuals can acquire and update their fund of personality knowledge despite impairments to semantic and episodic memory. Results add to the growing body of literature suggesting that semantic memory contains a subsystem devoted to the acquisition and representation of trait self–knowledge.
Sequencing and Staphylococci Identification

The emerging clinical importance of staphylococcal infections prompted us to establish a reference database for partial RNA polymerase B (rpoB; nucleotides 1444–1928) gene sequences from type strains of all staphylococcal species and subspecies. This database correctly identified 55 clinical staphylococcal isolates; all were correctly identified at the species level. At the subspecies level, rpoB misidentified only 2 isolates.
Three-dimensional Structure of Wza, the Protein Required for Translocation of Group 1 Capsular Polysaccharide across the Outer Membrane of Escherichia coli*

Wza is a highly conserved multimeric outer membrane protein complex required for the surface expression of the serotype K30 group 1 capsular polysaccharide in Escherichia coli. Here we present the first three-dimensional structure of this type of polysaccharide exporter at a 15.5-Å resolution obtained using single particle averaging on a dataset of cryo-negatively stained protein. Previous structural studies on purified Wza have revealed a homo-oligomeric ring structure that is most probably composed of eight subunits. Symmetry analysis of the three-dimensional structure combined with biochemical two- and three-dimensional crystallographic data strongly suggest that Wza is an octameric complex with a C4 quasi-rotational symmetry and is organized as a tetramer of dimeric subunits. Wza is best described as a stack of two 4-Å high rings with differing diameters providing a mushroom-like aspect from the side. The larger ring has a distinctive square shape with a diameter of 115 Å, whereas the smaller is almost circular with a diameter of 90 Å. In the center of the complex and enclosed by the four symmetrical arms is a small elliptical cagelike cavity of ∼40 Å in diameter. The central cavity is effectively sealed at the top and bottom of the complex but has small inter-arm holes when viewed from the side. We discuss the structure of this complex and implications in the surface translocation of cell-surface polysaccharide.
Reproducing the Wechsler Intelligence Scale for Children–Fifth Edition

One of the ways to increase the reproducibility of research is for authors to provide a sufficient description of the data analytic procedures so that others can replicate the results. The publishers of the Wechsler Intelligence Scale for Children–Fifth Edition (WISC-V) do not follow these guidelines when reporting their confirmatory factor analysis results. Consequently, scholars have been frustrated when they have tried to replicate the results in the WISC-V technical manual. I explain how the WISC-V publishers set the scale of their latent variables and demonstrate how to replicate the WISC-V models using the R statistical program.
Wildlife Value Orientations Among Hunters, Landowners, and the General Public: A Danish Comparative Quantitative Study

ABSTRACT This article examined wildlife value orientations among hunters (n = 1,130) and landowners (n = 1,207) in comparison to the general public (n = 1,001 adults) in Denmark, a highly urbanized European country. Respondents were categorized into four value types based on their responses to 19 statements. Significant differences in wildlife value orientations were found. Mutualists and distanced dominated in the public; most landowners and hunters were utilitarian followed by pluralist. Male hunters were more utilitarian than female. More active hunters were more utilitarian; hunters belonging to a hunting association were more utilitarian than those who did not belong to associations. Full-time farmers were more utilitarian than part-time farmers, and conventional farmers were more utilitarian than organic farmers. No significant difference with regard to residence for all three groups was found. Future studies should link what landowners and hunters actually do for the wildlife, and what the influencing factors are (e.g., incentive schemes) with their wildlife value orientations.
A Clinical Study of the Spectrum of GastroIntestinal Perforation Peritonitis in RuralSouthern East Rajasthan

Background: Perforation peritonitis is the most common surgical emergency encountered India and all over world. The etiology of perforation peritonitis as seen in India is different from its western counterpart. The objective of the study was to highlight the spectrum of perforation peritonitis as encountered by us in rural southern east Rajasthan. Methods: It is descriptive, retro-prospective study of 100 (hundred) cases of perforation peritonitis seen and treated over a period of two years. Results: The maximum number of patients in our study was in age group of 31- 40 years (23%) with a mean age was 40.29, years. There were 89 males (89%) as compared to 11 females (11%). The most common site of perforation in our series was gastroduodenal (81%) followed by small bowel perforation (13%), appendicular perforations (4%), colonic perforation (1%) and rectal perforation (1%). The rate of complication was 21%. Mortality rate was 7% and significantly high (100%) in patients coming to the hospital after 24 hours. Conclusion: In contrast to western literature, where lower gastrointestinal tract perforation, upper gastrointestinal tract perforation constitute the majority of cases in India. The high rates of mortality among these who presented late divert attention to the fact early recognition of symptoms and referral of patients is very important in reducing mortality and morbidity.
Family capital, children's individual attributes, and academic achievement

ABSTRACT In this study, I examined relationships between family educational capital and measures of children's individual attributes and their academic achievement. Data were collected from 905 eleven-year-old Australian children (457 boys, 448 girls) and their parents. Families were classified into four opportunity structures defined conjointly by human capital and social capital. Within each opportunity structure, relationships among the variables were examined by investigating hierarchical regression models that included terms to test for possible linear, interaction, and curvilinear associations. The findings suggest that (a) within family opportunity structures defined by human and social capital, children's ability and cognitive attitudes and their family educational capital had modest to moderate associations with academic achievement and (b) there were family opportunity structure differences in the nature of the relationships among family educational capital, children's individual attributes, and.
Biokinetics and Subchronic Toxic Effects of Oral Arsenite, Arsenate, Monomethylarsonic Acid, and Dimethylarsinic Acid in v-Ha-ras Transgenic (Tg.AC) Mice

Previous research demonstrated that 12-O-tetradecanoylphorbol-13-acetate (TPA) treatment increased the number of skin papillomas in v-Ha-ras transgenic (Tg.AC) mice that had received sodium arsenite [(As(III)] in drinking water, indicating that this model is useful for studying the toxic effects of arsenic in vivo. Because the liver is a known target of arsenic, we examined the pathophysiologic and molecular effects of inorganic and organic arsenical exposure on Tg.AC mouse liver in this study. Tg.AC mice were provided drinking water containing As(III), sodium arsenate [As(V)], monomethylarsonic acid [(MMA(V)], and 1,000 ppm dimethylarsinic acid [DMA(V)] at dosages of 150, 200, 1,500, or 1,000 ppm as arsenic, respectively, for 17 weeks. Control mice received unaltered water. Four weeks after initiation of arsenic treatment, TPA at a dose of 1.25 μg/200 μL acetone was applied twice a week for 2 weeks to the shaved dorsal skin of all mice, including the controls not receiving arsenic. In some cases arsenic exposure reduced body weight gain and caused mortality (including moribundity). Arsenical exposure resulted in a dose-dependent accumulation of arsenic in the liver that was unexpectedly independent of chemical species and produced hepatic global DNA hypomethylation. cDNA microarray and reverse transcriptase–polymerase chain reaction analysis revealed that all arsenicals altered the expression of numerous genes associated with toxicity and cancer. However, organic arsenicals [MMA(V) and DMA(V)] induced a pattern of gene expression dissimilar to that of inorganic arsenicals. In summary, subchronic exposure of Tg.AC mice to inorganic or organic arsenicals resulted in toxic manifestations, hepatic arsenic accumulation, global DNA hypomethylation, and numerous gene expression changes. These effects may play a role in arsenic-induced hepatotoxicity and carcinogenesis and may be of particular toxicologic relevance.
Human-system behavioral gaps

This article focuses on an often-encountered gap between the assumptions of the engineer that designs "something," versus how the users handle this "something" when it is deployed in the users' own context. In an effort to investigate end-users' perspectives relating to this gap, Ericsson Research conducted a user-centered study in collaboration with Augur Marknadsanalys, a Swedish company specializing in qualitative consumer insights. The user study was performed in Stockholm, Sweden, within a project looking at future TV and media experiences. One important thing we can learn from this study is that there is no such thing as a perfect system design because the users themselves create and complete the system when they eventually figure out how the new tools fit into their existing behavior.
The relationship of mental illness to targeted contact behavior toward state government agencies and officials.

Research in the burgeoning field of threat assessment has illuminated the importance of mental illness factors when considering risk of targeted violence-particularly related to government agencies and officials. The authors analyzed 127 cases investigated by a state law enforcement agency regarding threatening or other contacts toward public officials or state agency employees prompting security intervention. Univariate and discriminant analysis indicated that mentally ill subjects were significantly more likely to engage in more contacts as well as to make specific demands during such contacts. Mentally ill subjects were also more likely to articulate help-seeking concerns and employ religious themes, as opposed to using insulting, degrading, or ominous language toward the target or issuing complaints regarding policy issues. Contrary to other research, the mentally ill subjects within this sample were not significantly more likely to engage in approach behavior, a threshold for higher risk of violence. Implications for threat assessment activity are discussed.
A robotic haptic system architecture

The question of what are the necessary elements to integrate a robotics system that would enable it to carry out a task, i.e. pick-up and transport objects in an unknown environment, is addressed. One of the major concerns is to insure adequate data throughput and fast communication between modules within the system, so that haptic tasks can be adequately carried out. The communication issues involved in the development of such a system are discussed. <<ETX>>
The Second PASCAL Recognising Textual Entailment Challenge

This paper describes the Second PASCAL Recognising Textual Entailment Challenge (RTE-2). 1 We describe the RTE-2 dataset and overview the submissions for the challenge. One of the main goals for this year’s dataset was to provide more “realistic” text-hypothesis examples, based mostly on outputs of actual systems. The 23 submissions for the challenge present diverse approaches and research directions, and the best results achieved this year are considerably higher than last year’s state of the art.
Creativity, expression, and healing: an empirical study using mandalas within the written disclosure paradigm

Creativity, Expression, and Healing: An Empirical Study Using Mandalas within the Written Disclosure Paradigm. (August 2007) Patti Gail Henderson, B.S., Texas A&M University Chair of Advisory Committee: Dr. David H. Rosen Empirical research regarding the therapeutic value of creative artistic expression in dealing with symptoms from traumatic events is lacking. James Pennebaker has studied the efficacy of written expression regarding traumatic events in promoting mental well-being. Individuals who have difficulties with cognitive processing (e.g., learning disorders) often lack the faculties necessary to form a cohesive written narrative. There are also individuals who lack a strong enough command of written language to engage in a written disclosure task, such as children and those who are illiterate or undereducated. These populations are unlikely to benefit from written disclosure simply because they lack the capacity to write at such a sophisticated level. Disclosure of trauma by such individuals might be better accomplished symbolically through a creative artistic task rather than through written or verbal channels. Furthermore, because the task is symbolic in nature, it may be a safer and more comfortable means of disclosing trauma for individuals who are reluctant to divulge such information out of fear or shame surrounding the event. The primary purpose of this study was to examine the healing aspects of creativity; specifically the usefulness of
High performance work systems: the gap between policy and practice in health care reform.

PURPOSE Studies of high-performing organisations have consistently reported a positive relationship between high performance work systems (HPWS) and performance outcomes. Although many of these studies have been conducted in manufacturing, similar findings of a positive correlation between aspects of HPWS and improved care delivery and patient outcomes have been reported in international health care studies. The purpose of this paper is to bring together the results from a series of studies conducted within Australian health care organisations. First, the authors seek to demonstrate the link found between high performance work systems and organisational performance, including the perceived quality of patient care. Second, the paper aims to show that the hospitals studied do not have the necessary aspects of HPWS in place and that there has been little consideration of HPWS in health system reform. DESIGN/METHODOLOGY/APPROACH The paper draws on a series of correlation studies using survey data from hospitals in Australia, supplemented by qualitative data collection and analysis. To demonstrate the link between HPWS and perceived quality of care delivery the authors conducted regression analysis with tests of mediation and moderation to analyse survey responses of 201 nurses in a large regional Australian health service and explored HRM and HPWS in detail in three casestudy organisations. To achieve the second aim, the authors surveyed human resource and other senior managers in all Victorian health sector organisations and reviewed policy documents related to health system reform planned for Australia. FINDINGS The findings suggest that there is a relationship between HPWS and the perceived quality of care that is mediated by human resource management (HRM) outcomes, such as psychological empowerment. It is also found that health care organisations in Australia generally do not have the necessary aspects of HPWS in place, creating a policy and practice gap. Although the chief executive officers of health service organisations reported high levels of strategic HRM, the human resource and other managers reported a distinct lack of HPWS from their perspectives. The authors discuss why health care organisations may have difficulty in achieving HPWS. ORIGINALITY/VALUE Leaders in health care organisations should focus on ensuring human resource management systems, structures and processes that support HPWS. Policy makers need to consider HPWS as a necessary component of health system reform. There is a strong need to reorient organisational human resource management policies and procedures in public health care organisations towards high performing work systems.
Shape Memory and Huge Superelasticity in Ni–Mn–Ga Glass-Coated Fibers

Ni–Mn–Ga polycrystalline alloy fibers with diameters of 33 μm are reported to exhibit significantly improved ductility and huge superelastic and shape memory strains in comparison to conventional brittle bulk polycrystalline alloys. Particularly, the recoverable strain of the Ni54.9–Mn23.5–Ga21.6 fiber can be as high as 10% at 40 °C. Such optimized behavior has been achieved by a suitable fabrication process via a glass-coating melt spinning method. The superelastic properties at different temperatures and the shape memory effect of Ni54.9–Mn23.5–Ga21.6 fibers were investigated.
Recovery and amplification of ancient DNA from Herculaneum victims killed by the 79 AD Vesuvius hot surges

n thermally damaged archaeological bones the quantity, quality, and amplifiability of DNA are very much reliant on both the extent of heating and the environmental conditions of the burial context. In this study we tested the possibility of extracting and amplifying ancient DNA from human bone remains of Herculaneum victims of the 79 AD eruption of Vesuvius using a combination of histochemical and molecular methods. Long bone samples with variable degrees of chromatic and morphological alterations consistent with exposure to temperatures of about 300 °C were taken from four specimens. Using histochemical stains, bone cryostat sections from three individuals revealed DNA within osteocyte lacunae but only for one sample the DNA was suitable for PCR amplification obtained, namely from reactions with the primer pair for X and Y amelogenin (AMEL) loci. The relative sequence differed from the homologous trait of AMELX deposited in GenBank for six bases, probably due to degradation processes following death. Our data are indicative that archaeological bones exposed to high temperatures of about 300 °C should be considered for DNA analysis, given the favorable conditions of corpse burial and skeleton preservation, such as those that occurred for the 79 AD victims in Herculaneum and Pompeii.
Salmonella Typhi and Salmonella Paratyphi A elaborate distinct systemic metabolite signatures during enteric fever

The host–pathogen interactions induced by Salmonella Typhi and Salmonella Paratyphi A during enteric fever are poorly understood. This knowledge gap, and the human restricted nature of these bacteria, limit our understanding of the disease and impede the development of new diagnostic approaches. To investigate metabolite signals associated with enteric fever we performed two dimensional gas chromatography with time-of-flight mass spectrometry (GCxGC/TOFMS) on plasma from patients with S. Typhi and S. Paratyphi A infections and asymptomatic controls, identifying 695 individual metabolite peaks. Applying supervised pattern recognition, we found highly significant and reproducible metabolite profiles separating S. Typhi cases, S. Paratyphi A cases, and controls, calculating that a combination of six metabolites could accurately define the etiological agent. For the first time we show that reproducible and serovar specific systemic biomarkers can be detected during enteric fever. Our work defines several biologically plausible metabolites that can be used to detect enteric fever, and unlocks the potential of this method in diagnosing other systemic bacterial infections. DOI: http://dx.doi. org/10.7554/eLife.03100. 001