Miracle-dz/UniFAR-FTUs huggingface dataset:
Isolation of Mycoplasma bovis from a patient with systemic illness

Mycoplasma bovis was cultured from the sputum of a patient with lobar pneumonia, psychosis, and probable myocarditis, nephritis, and hemolytic anemia. Although we cannot be certain that this species of mycoplasma was the etiological agent of the patient's acute illness, this case report is of interest because, to the best of our knowledge, it represents the first isolation of M. bovis from a human source.
Endocrine active substances and dose response for individuals and populations

Dose-response characteristics for endocrine disruption have been major focuses in efforts to understand potential impacts on human and ecological health. Issues include assumptions of thresholds for developmental effects, effects at low doses with nonmonotonic (e.g., "U-shaped") behaviors, population vs. individual responses, and background exposures (e.g., dietary phytoestrogens). Dose-response analysis presents a challenge because it is multidisciplinary, involving biologists and mathematicians. Statistical analyses can be valuable for evaluating issues such as the reproducibility of data as illustrated for contradictory findings on low-dose effects. Mechanistically based modeling provides insights into how perturbations of biological systems by endocrine active substances can create different dose-response behaviors. These analyses have demonstrated that higher order behaviors resulting from the interaction of component parts may appear highly nonlinear, thresholded, low-dose linear, or nonmonotonic, or exhibit hysteresis. Some effects need to be evaluated as population impacts. For example, alterations in male:female ratio may be important at the population level even though not adverse for the individual. Descriptions of the contributions of background exposures to dose-response behaviors are essential. The challenge for improving dose-response analyses is to better understand how system characteristics create different dose-response behaviors. Such generalizations could then provide useful guidance for developing risk assessment approaches.
Mechanics of pericardial effusion: A simulation study

Pericardial effusion is a pathological accumulation of fluid within pericardial cavity, which may compress heart chambers with hemodynamic impairment. We sought to determine the mechanics underlying the physiology of the hemodynamic impairment due to pericardial effusion using patient-specific computational modeling. Computational models of left ventricle and right ventricle were based on magnetic resonance images obtained from patients with pericardial effusion and controls. Myocardial material parameters were adjusted, so that volumes of ventricular chambers and pericardial effusion agreed with magnetic resonance imaging data. End-diastolic and end-systolic pressure–volume relationships as well as stroke volume were determined to evaluate impaired cardiac function of biventricular model. Distributions of myocardial fiber stresses and their regional variation along left ventricular wall were compared between patient groups. Both end-diastolic and end-systolic pressure–volume relationships shifted to the left for patients with pericardial effusion, with right ventricle diastolic filling particularly restricted. Left ventricle function as estimated by Starling curve was reduced by pericardial effusion. End-systolic fiber stress of left ventricle was significantly reduced as compared to that found for healthy patients. Myocardial stress was found increased at interventricular septum when compared to that exerted at lateral wall of left ventricle. Right ventricular myocardial stress was reduced as a consequence of the pressure equalization between right ventricle and pericardial effusion. Diastolic right ventricle collapse in patients with pericardial effusion is related to higher myocardial fiber stress on interventricular septum and to an extensible pericardium reducing motion of ventricular chambers, with right ventricle particularly restrained. These findings likely portend progression of pericardial effusion to cardiac tamponade.
Mechanical Properties of Secondary Wall and Compound Corner Middle Lamella near the Phenol-Formaldehyde (PF) Adhesive Bond Line Measured by Nanoindentation

To find out the penetration of PF into the wood cell wall and its effects onthe mechanical properties in the cellular level, the elastic modulus and hardness of secondary wall (S2 layer) and compound corner middle lamella (CCML) near PF bond line region were determined by nanoindentation. Compare to the reference cell walls (unaffected by PF), PF penetration into the wood tissues showed improved elastic modulus and hardness. And the mechanical properties decreased slowly with the increasing the distance from the bond line, which are attributed to the effects of PF penetration into S2 layer and CCML. The reduced elastic modulus variations were from18.8 to 14.4 GPa for S2 layer, and from10.1 to 7.65 GPa for CCML. The hardness was from 0.67 to 0.52 GPa for S2 layer, and from 0.65 to 0.52 GPa for CCML. In each test viewpoint place, the average hardness of CCML was almost as high as that of S2 layer, but the reduced elastic modulus was about 50% less than that of S2 layer. But the increase ratio of mechanical properties was close. All the results showed PF penetrates into the CCML. The penetration behavior and penetration depth from bond line were similar in both S2 layer and CCML.
Analysis of the Dynamics of Treatment Motivation andStress Coping of Substance Use Disorders Patients inMinnesota Program of Latvia

Background: Stress is one of the strongest factors that provoke the use of drugs, which, in turn, highlight the importance of investigating of stress coping skills, especially due to fact that psychoactive substance (alcohol, narcotics, drugs) addiction is a pressing social problem in the whole world. Aim & Objectives: Determine the drug and/or alcohol addiction patients' recognition level of his/her problem, identify drug and/or alcohol addicted patients' the internal and external motivational dynamics during the treatment, and discover drug and/or alcohol addiction patients' stress coping strategies. Methods/Study Design: Demographic questionnaire developed by the study authors, SOCRATES 8A/ SOCRATES 8D questionnaires, Treatment motivation questionnaireas well as The Ways of Coping scale. Results/Findings: There were significant changes in answers of respondents before and after participation in the Minnesota program. In the evaluation of the Stress coping ways scale it was noticed that patients more often use emotions oriented stress coping strategy, the results coincide with other studies in this area. After summarisation and evaluation of Socrates survey data before and after the treatment, such tendencies were noticed - before the treatment less than half of the patients rated their addiction as very severe, but after the treatment more than half of the patients found it very severe. After participating in the Minnesota’s programme the majority of the patients noted positive changes, for instance, recognizing their problem and the ability and desire in keeping these changes in their future. Conclusion: The program has an impact and effectiveness on patients during the treatment. Participation in the Minnesota program encourages patients to recognize their addiction problems and it guides a deliberate action towards addiction's reduction. The study results suggest that on emotions oriented stress coping strategy is more common in patients with addictions, it manifests as very explicit avoidance.
The influence of motion quality on responses towards video playback stimuli

ABSTRACT Visual motion, a critical cue in communication, can be manipulated and studied using video playback methods. A primary concern for the video playback researcher is the degree to which objects presented on video appear natural to the non-human subject. Here we argue that the quality of motion cues on video, as determined by the video's image presentation rate (IPR), are of particular importance in determining a subject's social response behaviour. We present an experiment testing the effect of variations in IPR on pigeon (Columbia livia) response behaviour towards video images of courting opposite sex partners. Male and female pigeons were presented with three video playback stimuli, each containing a different social partner. Each stimulus was then modified to appear at one of three IPRs: 15, 30 or 60 progressive (p) frames per second. The results showed that courtship behaviour became significantly longer in duration as IPR increased. This finding implies that the IPR significantly affects the perceived quality of motion cues impacting social behaviour. In males we found that the duration of courtship also depended on the social partner viewed and that this effect interacted with the effects of IPR on behaviour. Specifically, the effect of social partner reached statistical significance only when the stimuli were displayed at 60 p, demonstrating the potential for erroneous results when insufficient IPRs are used. In addition to demonstrating the importance of IPR in video playback experiments, these findings help to highlight and describe the role of visual motion processing in communication behaviour.
An auto-I/Q calibrated CMOS transceiver for 802.11 g

The CMOS transceiver IC uses the superheterodyne architecture to implement a IEEE 802.11g RF front-end with auto I/Q calibration function. 1/spl deg/ quadrature mismatch and 0.1 dB gain mismatch can be achieved after the auto tuning in both the transmitter and receiver sides. Implemented in a 0.25 /spl mu/m CMOS process with 2.7 V supply, the transceiver achieves a 5.1 dB receive cascade NF and a 7 dBm transmit output P/sub 1dB/.
Arcuate nucleus expression of NKX2.1 and DLX and lineages expressing these transcription factors in neuropeptide Y+, proopiomelanocortin+, and tyrosine hydroxylase+ neurons in neonatal and adult mice

Despite its small size, the arcuate nucleus of the hypothalamus has a critical role in regulating energy homeostasis. We have begun to define genetic approaches to express genes in specific cell types within the developing arcuate nucleus, to allow precise molecular perturbations of these cells. Furthermore, our analysis aims to contribute to defining the transcriptional networks that regulate the development of function of the arcuate neurons. Here, we define the neuronal cells types within the arcuate that express Nkx2.1 and Dlx homeobox genes. In addition, we used mice expressing Cre recombinase from the Dlx5/6 intergenic enhancer (Dlx5/6i) and from the Nkx2.1 locus to follow the fate of embryonic cells expressing these genes within the arcuate nucleus. We demonstrate that NKX2.1+ cells and their lineages are broadly expressed in arcuate neurons [γ‐aminobutyric acid (GABA)+, neuropeptide Y (NPY)+, proopiomelanocortin (POMC)+, tyrosine hydroxylase (TH)+] and glia (tanycytes). On the other hand, DLX+ cells and their lineages mark only GABA+ and TH+ (dopaminergic) neurons, and Dlx1–/– mutants have fewer TH+ neurons. These results have implications for the genetic control of arcuate development and function and for the utility of the Nkx2.1‐Cre and Dlx5/6i‐Cre mouse lines to alter gene expression in the developing arcuate. J. Comp. Neurol. 517:37–50, 2009. © 2009 Wiley‐Liss, Inc.
A distributed coordination scheme to improve the performance of IEEE 802.11 in multi-hop networks

This paper investigates the performance of IEEE 802.11 in multi-hop scenarios and shows how its aggressive behavior can throttle the spatial reuse and reduce bandwidth efficiency. An adaptive, layer-2, distributed coordination scheme for 802.11 using explicit medium access control (MAC) feedback is then proposed to pace the transmissions on adjacent nodes, thereby assisting the MAC protocol to operate around its saturation state while minimizing resource contention. Simulation results show that the proposed scheme outperforms the original 802.11 MAC.
The microstructure of Sn in near-eutectic Sn–Ag–Cu alloy solder joints and its role in thermomechanical fatigue

During the solidification of solder joints composed of near-eutectic Sn–Ag–Cu alloys, the Sn phase grows rapidly with a dendritic growth morphology, characterized by copious branching. Notwithstanding the complicated Sn growth topology, the Sn phase demonstrates single crystallographic orientations over large regions. Typical solder ball grid array joints, 900 μm in diameter, are composed of 1 to perhaps 12 different Sn crystallographic domains (Sn grains). When such solder joints are submitted to cyclic thermomechanical strains, the solder joint fatigue process is characterized by the recrystallization of the Sn phase in the higher deformation regions with the production of a much smaller grain size. Grain boundary sliding and diffusion in these recrystallized regions then leads to extensive grain boundary damage and results in fatigue crack initiation and growth along the recrystallized Sn grain boundaries.
A Jump Diffusion Model for Evaluating of an Oilfield Development Project and its Application

Irreversible investments with largest outlay made with incomplete information are the mainstay of the oilfield development. Real Options Analysis (ROA) is a useful tool for making investment decisions under market uncertainty. Normal information generates continuous mean-reverting process for oil prices, whereas random abnormal information generates discrete jumps of random size. We will evaluate an oilfield development project using Mean-Reversion with Jumps (MRJ). As an example, we compare MRJ and Geometric Brownian Motion (GBM )valuation for the timing of investment and the optimization problem. This article concludes MRJ in some cases can induce better corporate decisions than GBM.
A topology-aware collision resolution algorithm

A new collision resolution algorithm called the space division multiple access protocol (SDMA) is presented. SDMA gains a performance advantage over similar protocols by using information about the positions of stations on the network. The protocol can operate asynchronously on a broadcast bus, allowing variable sized packet traffic. Through simulation the protocol is demonstrated to have better performance than Ethernet and the Capetanakis Tree protocol, a similar collision resolution protocol, under some traffic conditions. In particular, under heavy loads, SDMA displays better average throughput and lower variance of delay than Ethernet. The protocol demonstrates a performance bias based on the location of stations, but in most cases this bias is less severe than that experienced by Ethernet. <<ETX>>
Association between personality traits and DSM-IV diagnosis of insomnia in peri- and postmenopausal women

ObjectiveThe aim of this study was to determine the role of personality factors in the development of DSM-IV insomnia coincident with perimenopause. MethodsPerimenopausal women (35 women with DSM-IV insomnia and 28 women with self-reported normal sleep) underwent clinical assessments and completed menopause-related questionnaires, the NEO Five Factor Inventory and the Structured Interview for DSM-IV Personality. Logistic regressions determined whether personality factors and hot flash–related interference were associated with an insomnia diagnosis concurrent with the menopausal transition. ResultsWomen with insomnia reported higher neuroticism, lower agreeableness, and lower conscientiousness than controls on the NEO Five Factor Inventory. Moreover, women with insomnia were more likely to meet DSM-IV criteria for cluster C personality disorders, particularly obsessive-compulsive personality disorder, on the Structured Interview for DSM-IV Personality. Women with insomnia were more likely to have had a past depressive episode and a history of severe premenstrual symptoms. Findings from regressions revealed that higher neuroticism and greater interference from hot flashes were associated with insomnia classification even after controlling for history of depression, suggesting that sensitivity to hot flashes and a greater degree of neuroticism are independent contributors toward establishing which women are most likely to have sleep problems during perimenopause. ConclusionsFindings show the relevance of personality factors, particularly neuroticism and obsessive-compulsive personality, to a woman’s experience of insomnia as she goes through the menopausal transition.
High-performance symmetric-gate and CMOS-compatible V/sub t/ asymmetric-gate FinFET devices

Double-gate FinFET devices with asymmetric and symmetric polysilicon gates have been fabricated. Symmetric gate devices show drain currents competitive with fully optimized bulk silicon technologies. Asymmetric-gate devices show |V/sub t/|/spl sim/0.1 V, with off-currents less than 100 nA/um at V/sub gs/=0.
Towards Automated Video Analysis of Sensorimotor Assessment Data

Sensorimotor assessment aims at evaluating sensorial and motor capabilities of children who are likely to present a pervasive developmental disorder, such as autism. It relies on playful activities which are proposed by a psychomotrician expert to the child, with the intent of observing how the latter responds to various physical and cognitive stimuli. Each session is recorded so that the psychomotrician can use the video as a support for reviewing in-session impressions and drawing final conclusions. These recordings carry a wealth of information that could be exploited for research purposes and contribute to a better understanding of autism spectrum disorders. However, the systematic inspection of these data by clinical professionals would be time-consuming and impracticable. In order to make these analyses feasible, we discuss a computer vision approach to prospect precise behavior information from the available visual data acquired throughout assessment sessions.
Effect of LiCl on Mechanics Property of HA Ceramics During Sintering

Hydroxyapatite (HA) which has excellent biocompatibility and osteoconductivity is limited in the load-bearing repair because of its brittleness. Applying appropriate sintering additives for HA is a possible way to improve its mechanical properties. Systematic studies have has been performed to investigate the effect of LiCl as an additive on the microstructure and sinterability of HA and the relationship to its mechanical properties. The densification of HA containing different LiCl contents was completed through a special sintering process with the highest temperature of 1280°C. Microhardness was tested as a short cut to evaluate the changes of mechanical properties affected by the microstructure of HA doped with LiCl. The results of the experiment showed that LiCl is an effective sintering agent which causes neither decomposition of HA nor formation of other undesired phases with the increase of its microhardness.
Screening of Fetal Chromosome Aneuploidies in the First and Second Trimester of 125,170 Iranian Pregnant Women

Background: Aneuploidy is one of the main causes of congenital anomalies, mental and physical disabilities, in newborns. The aim of this study was to determine various chromosomal aneuploidies in the first and second trimester screening of pregnant women, in Iran. Methods: A descriptive retrospective study was conducted on 125,170 pregnant women referred to a major referral medical diagnostic laboratory (Niloo Laboratory, Tehran) for prenatal screening tests (2010–2013). Patients were divided into 3 groups: first trimester screening (FTS), second trimester screening (STS), and combined screening groups. In positive and borderline cases, and amniocentesis and cytogenetic analysis were carried out. Results: Total prevalence of aneuploidy in 125,170 pregnant women was one in 491, (Detection Rate=82.7% for Down syndrome). The DR for DS in three groups was as follow: 87.5% for FTS (25783 women), 80.9% for STS (91345 women), and 94.7% for combined tests (8042 women). Total number of cases with Edward's syndrome was 18, Patau's syndrome six, Klinefelter syndrome six, triploidy three, and Cri-du-chat syndrome one. Conclusion: The present study shows the frequency of aneuploidy in the first and second trimester screenings in a major medical laboratory in Tehran. The prevalence of aneuploidies grows with increased maternal age. The rate of aneuploidy in first trimester is higher than second.
In Situ Elevated Temperature Testing of Fly Ash Based Geopolymer Composites

In situ elevated temperature investigations using fly ash based geopolymers filled with alumina aggregate were undertaken. Compressive strength and short term creep tests were carried out to determine the onset temperature of viscous flow. Fire testing using the standard cellulose curve was performed. Applying a load to the specimen as the temperature increased reduced the temperature at which viscous flow occurred (compared to test methods with no applied stress). Compressive strength increased at the elevated temperature and is attributed to viscous flow and sintering forming a more compact microstructure. The addition of alumina aggregate and reduction of water content reduced the thermal conductivity. This led to the earlier onset and shorter dehydration plateau duration times. However, crack formation was reduced and is attributed to smaller thermal gradients across the fire test specimen.
A Probabilistic Topic Model for Unsupervised Learning of Musical Key-Profiles

Wedescribeaprobabilisticmodelforlearningmusicalkeyprofiles from symbolic files of polyphonic, classical music. Our model is based on Latent Dirichlet Allocation (LDA), a statistical approach for discovering hidden topics in large corpora of text. In our adaptation of LDA, symbolic music files play the role of text documents, groups of musical notes play the role of words, and musical keyprofiles play the role of topics. The topics are discovered as significant, recurring distributions over twelve neutral pitch-classes. Though discovered automatically, these distributions closely resemble the traditional key-profiles used to indicate the stability and importance of neutral pitchclasses in the major and minor keys of western music. Unlike earlier approaches based on human judgement, our model learns key-profiles in an unsupervised manner, inferringthemautomaticallyfromalargemusicalcorpusthat contains no key annotations. We show how these learned key-profiles can be used to determine the key of a musical piece and track its harmonic modulations. We also show how the model’s inferences can be used to compare musical pieces based on their harmonic structure.
Very low-frequency heart rate variability wave amplitude and sympathetic stimulation-characterization and modeling

The purpose of this study was to assess the relationship between very low-frequency heart rate variability (LFHR) wave amplitude and the degree of sympathetic stimulation. We developed a computerized system for the controlled increase of heart rate (HR) by isoproterenol (ISP), with which we obtained a series of stabilized HR levels in conscious freely moving rats. We found that LFHR amplitude rises gradually as a function of the average HR for each level until it reaches a point where additional increases in average HR are associated with gradual decrease in LFHR amplitude. We successfully built and fitted a model of LFHR amplitude to the experimental results. The fact that our model fits the experimental data well may suggest a possible relationship between our LFHR amplitude findings and the basic physiologic properties of the HR-ISP system inherent in our model.