Miracle-dz/UniFAR-FTUs huggingface dataset:
Leukocyte migration inhibition demonstrates a human T-cell response to a membrane protein expressed in latent Epstein-Barr virus infection

Leukocyte migration inhibition tests show that lymphocytes of Epstein-Barr virus-seropositive individuals recognize a Raji cell membrane antigen and a membrane protein encoded by Epstein-Barr virus in latently infected cells. Antiserum against the latter blocks the leukocyte migration inhibition triggered by both preparations, suggesting that the two antigens are associated with the same protein complex.
A Simple Delay Compensation System in Software - Defined Frequency Modulated Continuous (FMCW) Radar

Implementation of Frequency Modulated Continuous Wave (FMCW) radar in software-defined radio hardware, such as Universal Software Radio Peripheral (USRP) device, could leads into a low cost, low power and reconfigurable radar. On the other hand, this kind of device introduces additional delay which disturbs the delay caused by object. Therefore, this problem leads into significant error in range determination. In this paper, a simple system is proposed to solve this problem, which employs constant signal transmitted before the FMCW signal. This system works successfully solving the additional delay problem.
The relationship between labial vibrotactile detection and pure-tone hearing thresholds in healthy, ageing adults

Purpose: Orofacial anatomy is unique from other body systems in that oral musculature inserts directly into the underlying cutaneous skin, allowing for tight temporal synchronicity between somatosensory and auditory performance feedback to maintain correct orofacial behaviours across the lifespan. Unfortunately, little is currently known regarding the changes in orofacial sensory capacities associated with ageing and how these somatosensory and auditory changes may impact feedback during functional behaviours such as speech or swallowing. The purpose of this descriptive study was to begin assessing the relationship between the auditory and labial somatosensory system in healthy ageing adults. Method: Pure-tone hearing thresholds were determined for 500, 1000, 2000 and 4000 Hz. Using a 2-alternative forced choice paradigm, 60 adults (19–84 years) completed vibrotactile detection thresholds (VDT) at the 5 and 10 Hz test frequencies. Result: A significant difference for age by group was identified at the 5 Hz test frequency. Spearman Correlations identified a significant correlation between age and pure tone hearing thresholds and the 5 Hz test frequency threshold. Conclusion: A relationship between pure tone hearing thresholds and labial somatosensory was identified. Future studies will begin the processing of modelling the complex multivariate sensorimotor relationship in healthy individuals before moving to a disordered population.
A Requirements Model for Adaptive Multi-Organizational Systems

The objective of our research is to define a requirements model for Adaptive Multi-organizational Systems. Our work considers the functional complexity of contemporary internet-based, multi-organizational systems. Not only the business functions, but also the interactions between the components of such systems are highly dynamic and global. Furthermore, these systems function in extremely uncertain environments. This contextual uncertainty demands adaptability which further complicates the task of requirements modeling. Our model addresses this complexity by using a hierarchy of artifacts: goals encapsulating tasks, roles encapsulating goals, and organizations encapsulating roles. We express adaptation requirements in terms of non-functional requirements, quality constraints, and domain assumptions. Adaptivity is then modeled in all three organizational layers: goals, roles, and organizations. Contrary to existing methods, our approach enables modeling adaptivity and reduces the requirements modeling complexity in Adaptive Multi-organizational Systems.
Managing the introduction and spread of non-native aquatic plants in the Laurentian Great Lakes: a regional risk assessment approach

Risk assessment tools for non-native species can avert ecological and economic harm when they inform regulatory or voluntary management actions that seek to reduce the probability of introducing high-risk species. The Laurentian Great Lakes region contains many aquatic invasive plants, non-native species whose introduction causes economic or environmental harm or harm to human health. Additionally, new species continue to arrive, including through trade (e.g., aquarium, water garden). Currently, each Great Lakes jurisdiction manages a separate risk assessment program, leading to a regional situation with diverse assessment methods and large discrepancies in assessed and regulated species. Because the Great Lakes ecosystem crosses state and national borders, each jurisdiction will be best protected when all jurisdictions prevent the import of potentially harmful species. We have modified an existing risk assessment tool for use across the Great Lakes Basin to assess the invasion risks posed by aquatic plants. The tool comprises 38 questions, with points associated with each response that are summed to give a total score. We assessed all known established aquatic plant species in the Great Lakes (n=40) and found this score to be positively correlated with invasiveness, allowing thresholds to be identified that distinguish between invasive and non-invasive species with 84% to 90% accuracy. Assessing species proposed for introduction with this tool, and using these thresholds to determine acceptable risk, could reduce the number of future invasions. If widely adopted, this risk assessment tool would enable a common suite of species to be regulated and thus a more effective approach to reducing the risk of future invasions. Regional risk assessment approaches should reduce the threat of invasive species where environmental and climate conditions are relatively consistent across jurisdictional boundaries.
The Role of Optimism in experience of Student Stress and Suicidal Ideation

Suicidal behavior and ideation among adolescents is prevalent problems in almost every country that warrant considerable attention. While a variety of factors have been linked to suicidal ideation, only few studies have examined role of stress and optimism among adolescents population. This study aimed to determine the relationships between stress and optimism and suicidal ideation among adolescent students. Participants for this study were 200 adolescent students from Aligarh Muslim University, Aligarh, India. Appropriate questionnaires were used for measuring optimism, stress, and suicidal ideation among students. Apart from descriptive statistics for analyzing data, a four-step hierarchical linear regression analysis was used in order to examine main and moderator effects predicting suicidal ideation. Significant moderating effects were also probed and plotted through simple slopes at plus-and-minus one standard deviation of the stress on the association between stress and suicidal ideation within each level of moderator variable i.e. high and low levels. The results of the Pearson’s correlation analysis showed that there was significant positive relationship between stress and suicidal ideation. A significant negative correlation between optimism and suicidal ideation was also found. In addition, boys were more pessimistic and had more suicidal ideation compared to girls. Hierarchical regression analyses showed that stress and optimism predicted suicidal ideation for total sample and for both boys and girls. Moreover, the Stress X Optimism interaction was found to further augment the prediction of suicidal ideation, even after controlling for demographic variables and the main effects of optimism and stress. Consistent with the proposed interaction model, a plot of the significant interactions indicated that the link between stress and suicidal ideation was significantly more exacerbated for pessimistic as compared to optimistic adolescents. Findings from this study would help the healthcare professionals, counsellors, teachers, and parents in understanding how high stress which is peculiar to the stage of adolescence particularly students may have serious consequences in the form of suicidal ideas and that optimistic thinking may be helpful in coping with the stresses of this stage so as to avoid its harmful effects.
Trends in organ preservation

Organ preservation aims to provide a viable graft with primary function post-transplant. The current basis of preservation for transplantation is static cold storage using specific preservation solutions which minimise cellular swelling and membrane pump activity, thus maintaining cellular ATP levels. The current organ shortage and consequent expansion of donor criteria places even greater reliance on minimising graft injury during preservation. This review focuses on current and future advances in preservation technology. The key areas of advance are additives to preservation solutions, alternatives/adjuncts to preservation solutions including perfluorocarbons. A major area of advance is in the modulation of organs during the storage period. This may be achieved by biochemical additives or genetic manipulation. Machine perfusion technology is improving, and this is discussed together with the recent concept of warm (normothermic) perfusion as an alternative means of preservation. The authors provide an overview over the current methods of organ preservation. Cold storage, effective in the short-term is insufficient for marginal organs, does not allow assessment of viability markers, and provokes ischaemic injury. Potential strategies for minimising ischaemic injury include additives to preservation solutions; the two-layer method with perfluorcarbons and UW solution—at present limited to pancreas preservation; organ modulation; organ preconditioning and genetic modification of organs. In particular, the authors illuminate the potential in a reappraisal of the concept of normothermic perfusion.
Real Time Human Action Recognition in a Long Video Sequence

In recent years, most action recognition researches focuson isolated action analysis for short videos, but ignore theissue of continuous action recognition for a long videosequence in real time. This paper proposes a novelapproach for human action recognition in a video sequencewith whatever length, which, unlike previous works,requires no annotations and no pre-temporal-segmentations.Based on the bag of words representation and theprobabilistic Latent Semantic Analysis (pLSA) model, therecognition process goes frame by frame and the decisionupdates from time to time. Experimental results show thatthis approach is effective to recognize both isolated actionsand continuous actions no matter how long a videosequence is. This is very useful for real time applicationslike video surveillance. Besides, we also test our approachfor real time temporal video segmentation and real time keyframe extraction.
The effects of fishing on sharks, rays, and chimaeras (chondrichthyans), and the implications for marine ecosystems

Stevens, J. D. , Bonfil, R. , Dulvy, N. K. , and Walker, P. A. 2000. The effects of fishing on sharks, rays, and chimaeras (chondrichthyans), and the implications for marine ecosystems. – ICES Journal of Marine Science, 57: 476–494. The impact of fishing on chondrichthyan stocks around the world is currently the focus of considerable international concern. Most chondrichthyan populations are of low productivity relative to teleost fishes, a consequence of their different life-history strategies. This is reflected in the poor record of sustainability of target shark fisheries. Most sharks and some batoids are predators at, or near, the top of marine food webs. The effects of fishing are examined at the single-species level and through trophic interactions. We summarize the status of chondrichthyan fisheries from around the world. Some 50% of the estimated global catch of chondrichthyans is taken as by-catch, does not appear in official fishery statistics, and is almost totally unmanaged. When taken as by-catch, they are often subjected to high fishing mortality directed at teleost target species. Consequently, some skates, sawfish, and deep-water dogfish have been virtually extirpated from large regions. Some chondrichthyans are more resilient to fishing and we examine predictions on the vulnerability of different species based on their life-history and population parameters. At the species level, fishing may alter size structure and population parameters in response to changes in species abundance. We review the evidence for such density-dependent change. Fishing can affect trophic interactions and we examine cases of apparent species replacement and shifts in community composition. Sharks and rays learn to associate trawlers with food and feeding on discards may increase their populations. Using ECOSIM, we make some predictions about the long-term response of ecosystems to fishing on sharks. Three different environments are analysed: a tropical shelf ecosystem in Venezuela, a Hawaiian coral reef ecosystem, and a North Pacific oceanic ecosystem. 2000 International Council for the Exploration of the Sea
Performance of Deep-Rooted Phreatophytic Trees at a Site Containing Total Petroleum Hydrocarbons

Poplar and willow tree stands were installed in 2003 at a site in Raleigh, North Carolina containing total petroleum hydrocarbon – contaminated groundwater. The objective was groundwater uptake and plume control. The water table was 5 to 6 m below ground surface (bgs) and therefore methods were used to encourage deep root development. Growth rates, rooting depth and sap flow were measured for trees in Plot A located in the center of the plume and in Plot B peripheral to the plume. The trees were initially sub-irrigated with vertically installed drip-lines and by 2005 had roots 4 to 5 m bgs. Water balance calculations suggested groundwater uptake. In 2007, the average sap flow was higher for Plot B (∼59 L per day per tree) than for Plot A (∼23 L per day per tree), probably as a result of TPH-induced stress in Plot A. Nevertheless, the estimated rate of groundwater uptake for Plot A was sufficient, relative to the calculated rate of groundwater flux beneath the stand, that a high level of plume control was achieved based on MODFLOW modeling results. Down-gradient groundwater monitoring wells installed in late 2011 should provide quantitative data for plume control.
Bipolar switching waveform: Novel solution sets to the selective harmonic elimination problem

The problem of selective harmonic elimination pulse-width modulation (SHE-PWM) exhibits multiple sets of solutions. While these sets provide different solutions to the same problem, their harmonic performance varies greatly. Typical formulations to the problem have so far considered a quarter-wave symmetrically defined waveform in order to simplify the process of finding the required solutions, with great expense to the available solution space. In this paper, the three-phase half-wave symmetrically defined bipolar harmonic elimination is considered and analyzed in detail. The generalized formulation is also introduced and the multiple sets of solutions that exist are reported. An evaluation of the multiple sets with regard to the amplitude of the first significant harmonic and harmonic distortion factor is also performed. Selected simulation and experimental results are provided in order to verify the theoretical considerations.
Weak probe readout of coherent impurity orbital superpositions in silicon

Pump-probe spectroscopy is the most common time-resolved technique for investigation of electronic dynamics, and the results provide the incoherent population decay time T1. Here we use a modified pump-probe experiment to investigate coherent dynamics, and we demonstrate this with a measurement of the inhomogeneous dephasing time T2* for phosphorus impurities in silicon. The pulse sequence produces the same information as previous coherent all-optical (photon-echo-based) techniques but is simpler. The probe signal strength is first order in pulse area but its effect on the target state is only second order, meaning that it does not demolish the quantum information. We propose simple extensions to the technique to measure the homogeneous dephasing time T2, or to perform tomography of the target qubit.
Stand-Alone Renewable Hybrid Power Generation System

This paper presents the proposed design of a compact stand-alone hybrid power generation system using wind-solar resources. This system can be implemented in national highways where wind can be collected due to the high speed motion of vehicles and at the same time the solar energy from the ambient will also be collected. Finally both energies will be acquired simultaneously for charging the batteries and is utilized for satisfying the electrical demands of domestic and rural areas. For the purpose of maximum uninterrupted power supply in industries and factories, a DC generator and power supply line are also connected to the system. But these two systems work in a priority order only when the demand is not met by the Wind-Solar system. The main advantage of this system is, it can be implemented in both standalone and grid connected modes.
OPENING OFFER OR CONTRACTUAL OBLIGATION? ON THE PRESCRIPTIVE FUNCTION OF NOTATION IN MUSIC TODAY

Abstract This article explores some of the diverse forms that musical notation has assumed in the early twenty-first century and discusses its use along a broad spectrum of creative intention, which includes visual representation of sounds, verbal lists of instructions or provocations, and much else. Drawing upon his own experience as a composer, and on studies of the work of composers both older and younger (Stockhausen, Lucier, Wolff; Molitor, Lely), the author examines the changing meanings of notes, staves and clefs, and the possibilities of graphic scores, text scores, and hybrid forms of notation.
Promoting the Health and Well-Being of Children in Immigrant Families

The authors analyze data from the 1999 National Survey of America's Families and find that immigrant families have important strengths but face significant challenges. Among the strengths: a high proportion of children of immigrants live in two-parent families compared to children of natives. While children of immigrants are more likely to live in low-income families, these families are more likely to have full-time workers than children of low-income native families. Among the challenges: Children of immigrants living in two parent families are substantially more likely to be low-income than children of natives who live in two-parent families because immigrant workers receive lower wages and the second parent is less likely to work. Children of immigrants are more likely to be in fair or poor health and not have a usual source of health care. The researchers conclude that policies intended to promote work and marriage may be less helpful to immigrants than those intended to boost income through work supports. [Read the press release ]
A comparison of red-green color vision deficiency between medical and non-medical students in Pakistan.

OBJECTIVE To investigate the prevalence of red-green color vision deficiency (CVD) among medical and dental students compared with non-medical students. METHODS This descriptive, cross-sectional study compared the prevalence of CVD between medical and non-medical Pakistani students. A total of 926 medical and dental students from Baqai Medical University, Karachi, Pakistan were compared with 7288 non-medical students from Nadirshaw Edulji Dinshaw University of Engineering and Technology, Karachi, Pakistan, and Pakistan Air Force (PAF) Public Schools (Muree and Sargodha), Pakistan. Standard Ishihara color vision charts were used, which provided an accurate assessment of CVD. More than 3 mistakes from plates 10-17 identified students as having red green CVD. The study was carried out from September 2003 to December 2008. RESULTS The overall prevalence of CVD in the study population was 2.75%. They were no significant differences between male students in engineering college versus medical college (2.7% versus 4.4%, p=0.125), or between schools and universities (3.1% versus 3.1%, p=0.930). CONCLUSION A small proportion of the Pakistani population suffers from red-green CVD, more prominent in males. We found no differences between students in engineering college versus medical college, or between schools and universities in different geographical locations within Pakistan.
Analysis of myogenesis by somatic cell hybridization. II. Retention of myogenic competence and suppression of transformed properties in hybrids between differentiation competent and incompetent rat L6 myoblasts

This study describes the characteristics of hybrids between two closely related rat myoblast lines, which differ both in the ability to express their program of differentiation and in the expression of neoplastic properties. Myogenic, nonneoplastic L6J1‐S cells were hybridized with nonmyogenic, neoplastic L6J1‐N1 cells. Six hybrid clones were isolated and expanded for analysis of myogenic competence, and four of these clones were also evaluated for parameters of transformation, including tumorigenicity, ability to clone in agar, and surface fibronectin. In addition to our analysis of isolated clones, we also assessed myogenic differentiation in colonies representing 226 early hybrid clones. Results of all these analyses demonstrate that the myogenic phenotype is retained and that the tumorigenic/transformed phenotype is suppressed in the hybrids. Furthermore, our results indicate that when the programs for myogenesis and neoplastic transformation are confronted within a single cell, they are expressed as mutually exclusive alternatives. In contrast to these results on myogenic × nonmyogenic L6 hybrids, it has been reported that isolated clones of A9 × L6 exhibited extinction of myogenic competence and retention of transformed properties. We have evaluated myotube formation in over 300 early hybrid clones between A9 and either diploid or subtetraploid L8 rat myoblasts. Our results demonstrate that all of these hybrid clones exhibit extinction regardless of the ploidy of the myoblast parent, and they further indicate that extinction is not a consequence of chromosome loss. These results support the conclusion that in A9 × L6 hybrids, the nonmyogenic, transformed phenotype is dominant.