Miracle-dz/UniFAR-FTUs huggingface dataset:
Visuospatial Tasks Affect Locomotor Control More than Nonspatial Tasks in Older People

Background Previous research has shown that visuospatial processing requiring working memory is particularly important for balance control during standing and stepping, and that limited spatial encoding contributes to increased interference in postural control dual tasks. However, visuospatial involvement during locomotion has not been directly determined. This study examined the effects of a visuospatial cognitive task versus a nonspatial cognitive task on gait speed, smoothness and variability in older people, while controlling for task difficulty. Methods Thirty-six people aged ≥75 years performed three walking trials along a 20 m walkway under the following conditions: (i) an easy nonspatial task; (ii) a difficult nonspatial task; (iii) an easy visuospatial task; and (iv) a difficult visuospatial task. Gait parameters were computed from a tri-axial accelerometer attached to the sacrum. The cognitive task response times and percentage of correct answers during walking and seated trials were also computed. Results No significant differences in either cognitive task type error rates or response times were evident in the seated conditions, indicating equivalent task difficulty. In the walking trials, participants responded faster to the visuospatial tasks than the nonspatial tasks but at the cost of making significantly more cognitive task errors. Participants also walked slower, took shorter steps, had greater step time variability and less smooth pelvis accelerations when concurrently performing the visuospatial tasks compared with the nonspatial tasks and when performing the difficult compared with the easy cognitive tasks. Conclusions Compared with nonspatial cognitive tasks, visuospatial cognitive tasks led to a slower, more variable and less smooth gait pattern. These findings suggest that visuospatial processing might share common networks with locomotor control, further supporting the hypothesis that gait changes during dual task paradigms are not simply due to limited attentional resources but to competition for common networks for spatial information encoding.
When OWL met DL-Lite

Recent research in the area of ontology representation for the Semantic Web has led to several different language proposals. Among the others, it led to the standardization of OWL, on one hand, and to the emergence of the DL-Lite family of Description Logics, on the other hand. These two outcomes mainly differ on their objective: while OWL aims to be a standard, and as such, it is tailored towards expressivity, the main goal of the languages in the DL-Lite family is to allow accessing huge amount of data, by maintaining tractability, and delegating query processing to a DBMS. In this paper we show how DL-Lite can meet OWL. Specifically, we focus on DL-LiteA, the language in the DL-Lite family that is closest to OWL, and introduce the SparSQL language, a concrete epistemic query language, inspired by both SQL and SPARQL, that allows posing expressive tractable queries over DL-LiteA ontologies. Finally, we introduce the main novel DL-LiteA features beyond OWL. The capability of handling such features, together with the SparSQL queries, are some of the new functionalities recently implemented in the MASTRO system.
Individual differences in intentional and unintentional exposure to online pornography among Hong Kong Chinese adolescents

Abstract The current study aimed to test how gender and religion affect unintentional and intentional exposure to online pornography in Chinese adolescents. A total of 1401 secondary school students (age range from 11 to 16 years) participated in the study. Findings from multivariate analyses show that males reported higher levels of unintentional and intentional exposure to online pornography than females. Significant differences were found in adolescents’ religiosity, with students who had religious beliefs reporting a lower level of unintentional exposure to online pornography than their counterparts without religious beliefs. In terms of intentional exposure to online pornography, adolescents were more likely to be exposed if they were male and had religious beliefs. Such differences were not found in females. This study demonstrated the influence of demographic characteristics on exposure to online pornography among Chinese adolescents.
Dietary fat restriction increases fat taste sensitivity in people with obesity

Individuals with obesity may be less sensitive to the taste of fat, and it is hypothesized that this is due to excess dietary fat intake. This study assessed the effect of a 6‐week low‐fat (LF) or portion control (PC) diet matched for weight loss on fat taste thresholds, fat perception, and preference in people with overweight/obesity.
Mast cell tryptase potentiates histamine-induced contraction in human sensitized bronchus.

The mast cell plays a pivotal role in the early asthmatic response via release of mediators, which directly influence airway smooth muscle tone. Canine mast cell tryptase has been reported to potentiate the contractile response of canine isolated airways to histamine. The aim of this study was to investigate whether human mast cell tryptase potentiated contractile responses in human isolated bronchi. The effect of tryptase differed according to the sensitization status of the bronchi. In lung tissue from sensitized patients (those whose bronchial tissue contracted in response to the application of any of four common antigens) 90 ng.mL-1 of human purified lung tryptase markedly potentiated the contractile response to histamine. The maximal response as a percentage of maximal contraction to acetylcholine was 80 +/- 8% in control tissues and 119 +/- 6% in tryptase treated tissues (n = 4; p < 0.05). Tryptase, at a dose of 200 ng.mL-1, also potentiated responses but to a lesser degree, 100 +/- 5% (n = 4; p < 0.05). In nonsensitized bronchi, neither 90 nor 200 ng.mL-1 tryptase had any significant effect on histamine responses. The increased response in the presence of tryptase in sensitized tissue was inhibited by the calcium voltage-dependent channel antagonist, verapamil (10(-6) M). We have shown, for the first time, that human mast cell tryptase potentiates contraction in sensitized bronchi via a calcium-related mechanism. These findings provide a link between a mast cell derived product and in vitro human airway hyperresponsiveness.
A Versatile Stair-Climbing Robot for Search and Rescue Applications

For disaster mitigation as well as for urban search and rescue (USAR) missions, it is often necessary to place sensors or cameras into dangerous or inaccessible areas to get a better situation awareness for the rescue personnel, before they enter a possibly dangerous area. Robots are predestined to this task, but the requirements for such mobile systems are demanding. They should be quick and agile and, at the same time, be able to deal with rough terrain and even to climb stairs. The latter is always required if the rescue personnel has to get access to higher floors inside a building. A rugged, waterproof and dust-proof corpus, and, if possible, the ability to swim, are only a few of many requirements for such robots. With those requirements in mind, the hybrid legged-wheeled robot ASGUARD was developed. This robot is able to cope with stairs, very rough terrain, and is able to move fast on flat ground. We will describe a versatile adaptive controller, based only on proprioceptive data. An additional inclination feedback is used to make the controller versatile for flat ground as well as for steep slopes and stairs. An attachable float provided, the robot is able to swim, using the same locomotion approach. By using twenty compliant legs, which are mounted around four individually rotating hip-shafts, we use an abstract model of quadruped locomotion. For the control design, four independent pattern generators are used. In contrast to many other hybrid legged-wheeled robots, we use the direct proprioceptive feedback in order to modify the internal control loop, thus adapting the model of the motion pattern. For difficult terrains, like slopes and stairs, we use a phase-adaptive approach which is using directly the proprioceptive data from the legs.
Effects of renal papillary-medullary lesion on the antihypertensive effect of furosemide and development of salt-sensitive hypertension in Dahl-S rats.

To test the hypothesis that the long-term antihypertensive action of furosemide is mediated by a renomedullary vasodepressor substance, we measured mean arterial pressure (MAP) by radiotelemetry in Dahl-S rats with either intact or bromoethylamine-induced (BEA, 100 mg/kg i.p.) lesion of the renal papilla and medulla. Seven days of recovery after BEA administration, the rats diet was changed from 1 to 4% NaCl, and during days 8 to 31, rats were randomized to daily treatment with placebo or furosemide (50 mg/kg p.o.). Then furosemide treatment was stopped and the rat food was changed to 1% NaCl diet. After a 10-day wash-out period, renal function was measured. BEA produced a rapid (within min) and sustained increase in MAP which was accelerated during 4% NaCl diet. Furosemide prevented 4% NaCl-induced hypertension in both rats with intact kidneys and in rats with BEA-induced renal papillary-medullary lesion. A significant decrease in renal plasma flow (-34%) and glomerular filtration rate (-40%) was observed in all BEA-treated rats independent of previous furosemide treatment. In response to an i.v. load of isotonic saline (10% body weight), rats with renal papillary-medullary lesion had an impaired ability to excrete sodium. Histological examination showed that BEA-treated rats had severe lesions of the renal papilla and medulla, with light-to-moderate changes in the renal cortex. It is concluded that the antihypertensive effect of furosemide is not mediated by a renomedullary vasodepressor substance. The accelerated NaCI-sensitive hypertension in rats with BEA-induced renal papillary-medullary lesion is related to an impaired ability to excrete excess NaCl.
Sleep Spindles Characteristics in Insomnia Sufferers and Their Relationship with Sleep Misperception

Cortical hyperarousal is higher in insomnia sufferers (INS) than in good sleepers (GS) and could be related to an alteration in sleep protection mechanisms, like reduced density or altered characteristics in sleep spindles. The deficient sleep protection mechanisms might in turn enhance underestimation of sleep. This study's objective was to document sleep spindles characteristics in INS compared with GS and to investigate their potential role in sleep consolidation and misperception. Seventeen individuals with paradoxical insomnia (PARA-I), 24 individuals with psychophysiological insomnia (PSY-I), and 29 GS completed four consecutive polysomnographic nights in laboratory. Sleep spindles were detected automatically during stage 2 and SWS (3-4) on night 3. Number, density, duration, frequency, and amplitude of sleep spindles were calculated. A misperception index was used to determine the degree of discrepancy between subjective and objective total sleep times. Kruskal-Wallis H tests and post hoc tests revealed that PARA-I had significantly shorter sleep spindles than GS but that PSY-I and GS did not differ on spindles length. A standard multiple regression model revealed that neither sleep spindles characteristics nor objective sleep measures were predictive of sleep misperception. A longer duration of spindles could reflect a higher gating process but this hypothesis still needs to be confirmed in replication studies.
The Adoption of Mobile Commerce Service among Employed Mobile Phone Users in Bangladesh: Self-efficacy as a Moderator

Mobile commerce or better known as M-commerce is a fairly new phenomenon in the wake of the second technology wave from the famous E-commerce (electronic commerce) in the 21 st century. As the Internet started to proliferate in many parts of the world, the mobile phone penetration in terms of voice communication started to grow rapidly. This simultaneous rapid growth has caused a new phenomenon of convergence of Internet computing and mobile communication where M-commerce has its root. M-commerce has the potential to enhance the work-life within the employed mobile phone users in Bangladesh. The purpose of this study is to examine whether awareness and knowledge, convenience of Mobile devices and WAP/GPRS enabled handsets, pricing and cost, security and privacy, rich and fast information, and perceived usefulness have any influence on the adoption of M-commerce among employed Mobile phone users in two major cities in Bangladesh – Dhaka and Chittagong. A survey method was used to collect data. The findings suggest that pricing and cost, rich and fast information, and security and privacy are significant predictors of the adoption of M-commerce. Self-efficacy is found to be a moderating factor for the adoption of M-commerce services. The findings also suggest that there is no significant gender difference in terms of M-commerce adoption level among mobile users in Bangladesh.
On the Feasibility of a Stop NLSP in Gravitino Dark Matter Scenarios

We analyze the possibility that the lighter stop ˜1 could be the next-to-lightest supersymmetric particle (NLSP) in models where the gravitino is the lightest supersymmetric particle (LSP). We do not find any possibility for a stop NLSP in the constrained MSSM with universal input soft supersymmetry-breaking masses at the GUT scale (CMSSM), but do find small allowed regions in models with non-universal Higgs masses (NUHM). We discuss the cosmological evolution of stop hadrons. Most ˜1qq ‘sbaryons’ and the corresponding ‘antisbaryons’ annihilate with conventional antibaryons and baryons into ˜1¯ q ‘mesinos’ and the corresponding ‘antimesinos’, respectively, shortly after the quark-hadron transition in the early Universe, and most mesinos and antimesinos subsequently annihilate. As a result, insufficient metastable charged stop hadrons survive to alter Big Bang nucleosynthesis. CERN-PH-TH/2007-003
Morality and competence in person- and self-perception

Morality and competence are posited to constitute two basic kinds of content in person- and self-perception. Moral content dominates person-perception because it typically has a direct and unconditional bearing on the well-being of other people surrounding the person who is described by the trait (including the perceiver). Competence dominates self-perception because it has a direct bearing on the well-being of the perceiver. A comprehensive research programme is reviewed showing that morality of others matters to the perceiver to a much higher degree than his/her competence. When forming global evaluations of others, the perceiver is more interested in their moral than competence qualities, construes their behaviour in moral terms, and his or her impressions and emotional responses are more strongly based on morality than competence considerations. Just the opposite is true for self-perception and self-attitudes. Own behaviours are construed more readily in competence than moral terms, and own competence influences self-evaluations and emotional responses to a higher degree than own morality.
To return or not to return? The importance of identity negotiations for return migration

ABSTRACT Whereas migration research has been heavily influenced by the individualization paradigm, studies on return migration have been more inspired by theories on attachment and belonging. It is common for this kind of research to assert that the main motivations for returning are social contacts and a homing desire. Although this article does not question the importance of such motivations for some, it does argue that return migration needs to be more problematized, not least by studying people who have decided not to return. Based on interviews with highly skilled Estonians, this article suggests that return decisions are influenced by three types of comparisons: social, temporal, and intra-subjective. The first two comparisons have been discussed to some degree in migration literature; however, a focus on intra-subjective comparisons – in which people compare different parts of their identity in order to decide on a potential return – has been scarce. This article suggests that, in line with the individualization of social relationships, but also with the introduction of a new EU mobility space, it is the latter type of comparison that is becoming increasingly widespread.
Minimal Residual Disease at First Achievement of Complete Remission Predicts Outcome in Adult Patients with Philadelphia Chromosome-Negative Acute Lymphoblastic Leukemia

We evaluated the prognostic effect of minimal residual disease at first achievement of complete remission (MRD at CR1) in adult patients with Philadelphia chromosome-negative acute lymphoblastic leukemia (ALL). A total of 97 patients received treatment in our center between 2007 and 2012 were retrospectively reviewed in this study. Patients were divided into two arms according to the post-remission therapy (chemotherapy alone or allogeneic hematopoietic stem cell transplantation (allo-HSCT)) they received. MRD was detected by four-color flow cytometry. We chose 0.02% and 0.2% as the cut-off points of MRD at CR1 for risk stratification using receiver operating characteristic analysis. The 3-year overall survival (OS) and leukemia free survival (LFS) rates for the whole cohort were 46.2% and 40.5%. MRD at CR1 had a significantly negative correlation with survival in both arms. Three-year OS rates in the chemotherapy arm were 70.0%, 25.2%, 0% (P = 0.003) for low, intermediate, and high levels of MRD at CR1, respectively. Three-year OS rates in the transplant arm were 81.8%, 64.3%, 27.3% (P = 0.005) for low, intermediate, and high levels of MRD at CR1, respectively. Multivariate analysis confirmed that higher level of MRD at CR1 was a significant adverse factor for OS and LFS. Compared with chemotherapy alone, allo-HSCT significantly improved LFS rates in patients with intermediate (P = 0.005) and high (P = 0.022) levels of MRD at CR1, but not patients with low level of MRD at CR1 (P = 0.851). These results suggested that MRD at CR1 could strongly predict the outcome of adult ALL. Patients with intermediate and high levels of MRD at CR1 would benefit from allo-HSCT.
Admission control of VoIP calls in EDCA WLANs: Analysis and experimentation

The enhanced distributed channel access (EDCA) is a component of the new IEEE 802.11e standard [2], which introduces Quality of Service (QoS) support in Wireless LANs (WLANs). This paper proposes a model for the VoIP capacity of an EDCA WLAN. The proposed solution decouples the problem of estimating stations performance and that of evaluating channel congestion. Moreover, it models the dynamics of the sending queues. This translates in a model working under generic load conditions (i.e. VoIP traffic at different bit rates) that captures the impact of all the parameters introduced by EDCA. To validate the model, we derived a simple Admission Control algorithm for VoIP and generic real-time symmetric applications. Experimental analysis and simulations have been used to validate the model and to establish its limitations.
On the distinction between 'stress-timed' and 'syllable-timed' languages

One of the most familiar distinctions in phonetics is that between STRESS-TIMED and SYLLABLE-TIMED languages. Many textbooks refer to this, but nowhere is the distinction as explicitly made as in Abercrombie (1967, p. 97), who writes: `As far as is known, every language in the world is spoken with one kind of rhythm or with the other . French, Telugu and Yoruba . are syllable-timed languages, . English, Russian and Arabic . are stresstimed languages'. Most teachers of phonetics are used to being asked by students how one can tell if a particular language is syllable-timed or stress-timed; it is easy enough to construct and perform examples, such as a comparison between an English sentence:
Multifactorial Model and Treatment Approaches of Refractory Hypotension in a Patient Who Took an ACE Inhibitor the Day of Surgery

In the field of anesthesiology, there is wide debate on discontinuing angiotensin-converting enzyme inhibitor (ACEI) and angiotensin receptor blocker (ARB) therapy the day of noncardiac surgery. Although there have been many studies attributing perioperative hypotension to same-day ACEI and ARB use, there are many additional variables that play a role in perioperative hypotension. Additionally, restoring blood pressure in these patients presents a unique challenge to anesthesiologists. A case report is presented in which a patient took her ACEI the day of surgery and developed refractory hypotension during surgery. The evidence of ACEI use on the day of surgery and development of hypotension is reviewed, and additional variables that contributed to this hypotensive episode are discussed. Lastly, current challenges in restoring blood pressure are presented, and a basic model on treatment approaches for refractory hypotension in the setting of perioperative ACEI use is proposed.
Development of a Multiplayer Online Game-Based Learning System Based on ARCS Motivation Model

The prominent role of e-Learning in information technology has led to advances in recent years. E-learning is an extremely efficient way to train and learn. Traditional textbook may be replaced by digital media or e-Material. Most of the e-learning system mainly teaching material includes text, picture, video, but lacked for interaction between students and vivid materials. Online games are conducive to learning because online games have greatly interaction and competitiveness among players to enhance student motivation to learn. Therefore, this work developed a multiplayer online game-based learning system (MOGLS), which based on the ARCS motivation model. the MOGLS allows learners to acquire Enterprise Resource Planning knowledge. the proposed system can raise the intrinsic motivation of studentsi¦ active learning and enhancing their learning performance the MOGLS system provides learning record, rankings record, end-of-test feedback to motivate learners to learn. by interaction and competition among students, the MOGLS system would facilitate and enhance learning.