Miracle-dz/UniFAR-FTUs huggingface dataset:
Discovery of a strong magnetic field on the O star HD 191612: new clues to the future of θ 1 Orionis C? ⋆

From observations made with the ESPaDOnS spectropolarimeter, recently installed on the 3.6-m Canada–France–Hawaii Telescope, we report the discovery of a strong magnetic field in the Of? p spectrum variable HD 191612 – only the second known magnetic O star (following � 1 Ori C). The stability of the observed Zeeman signature over four nights of observation, together with the non-rotational shape of line profiles, argue that the rotation period of HD 191612 is significantly longer than the 9-d value previously proposed. We suggest that the recently identified 538-d spectral-variability period is the rotation period, in which case the observed line-of-sight magnetic field of 220 ± 38 G implies a large-scale field (assumed dipolar) with a polar strength of about 1.5 kG. If confirmed, this scenario suggests that HD 191612 is, essentially, an evolved version of the near-ZAMS magnetic O star � 1 Ori C, but with an even stronger field (about 15 kG at an age similar to that of � 1 Ori C). We suggest that the rotation rate of HD 191612, which is exceptionally slow by accepted O-star standards, could be due to angular-momentum dissipation through a magnetically confined wind.
EXPERIMENTAL RESEARCH ON MICE REGARDING THE IMPLICATION OF MELATONIN IN PAIN MANAGEMENT

Melatonin (N-acetyl-5-methoxytryptamine) is the main hormone biosynthesized by the pineal gland. This biomolecule coordinates and synchronizes the expression of the most important physiologic sleep-awake effects and biological rhythms. Numerous studies in the scientific literature also describe its multi-regulatory roles in endocrine, immune and nervous systems. Recently, melatonin has been suggested to play a regulatory role in organisms’ pain sensitivity. Our previous studies investigated the antinociceptive activity of melatonin when we performed an evaluation regarding the dose-dependent dinamics of the analgesic effect of melatonin. We found that the biomolecule exerts an important analgesic effect for the dose of 50mg melatonin/kgbw. The present study investigated the antinociceptive pharmacologic effects of melatonin (50mg /kgbw, i.p.) in co-administration with ondansetron (4mg/kgbw, i.p.), petidine (4mg/kgbw, i.p.) and tramadol (3.5mg/kgbw, i.p.). Experiments were performed in vivo, using Albino Swiss male mice. Pain sensitivity was assessed using the hot-plate test (60°C). The present study also outlines an amplification of the analgesic effect when petidine is co-administered with melatonin and an antagonism between ondansetron and the pineal biomolecule. Rezumat Melatonina este principalul hormon sintetizat la nivelul glandei pineale. Această biomoleculă este responsabilă de coordonarea si sincronizarea expresiei efectelor fiziologice ale alternanţei somn-veghe si a ritmului biologic. In literatura de specialitate sunt descrise o serie de studii ce evidenţiază rolurile multiple ale melatoninei la nivelul sistemelor endocrin, imun, nervos. Efectul său reglator asupra sensibilităţii dureroase a fost de curând atribuit acestei molecule. Studiile experimentale anterioare au demonstrat dinamica doză-dependentă a efectului analgezic al melatoninei. Concluziile experimentale au arătat că această biomoleculă are un efect analgezic important la o doză de 50 mg melatonină/kgc. Plecând de la aceste premise, ne-am propus ca pe parcursul acestui studiu experimental să evaluăm efectul antinociceptiv al melatoninei (50 mg melatonină/kgc, i.p.), in co-administrare cu ondansetron (4mg/kgc, i.p.), petidină (4mg/kgc, i.p.) si tramadol (3.5mg/kgc, i.p.). Studiile s-au desfăsurat in vivo, pe soareci masculi Albino Swiss. Sensibilitatea la durere a fost evaluată cu ajutorul testului “hot-plate“ (testul stimulului termic, la 60°C).
RU OK: Evaluating the Effectiveness of a Gatekeeper Training Program

Mounting evidence supports the necessity to ensure the emotional well-being of the campus community. Findings from the Cooperative Institutional Research Program (CIRP) Freshman Survey indicate that incoming first-year students’ self-rated emotional health has declined, with the lowest levels noted in 2014 and 2015 (Eagan, Stolzenberg, Bates, Aragon, Suchard, & Rios-Aguilar, 2016). The continuing downward trend is of concern, since suicide is the second leading cause of death among persons aged 15–34 years (Centers for Disease Control and Prevention, 2013). The percentage of full-time college students aged 18–22 years who had serious thoughts of suicide increased from 6.6% to 8.0% between 2012 and 2013 (Substance Abuse and Mental Health Services Administration, 2014). Our university has not been immune to these trends: after 12 years without experiencing a suicide, the university lost 6 students to suicide from 2010 to 2013; and during 2012–2013, staff in the University Counseling and Mental Health Center met with 158 students who self-reported having suicidal ideation. A clear impetus exists for campus communities to implement suicide prevention strategies, and student affairs professionals are in a key position to contribute to this effort. Gatekeeper training such as QPR (Question, Persuade, Refer) has been identified as a potential strategy to promote suicide prevention (Quinnet, 2012) by enabling those in personal or professional relationships to “recognize and refer persons identified to be at potential risk of suicide” (pp. 3–4). The purpose of QPR is to “enhance the probability that a potentially suicidal person is identified and referred for assessment and care before an adverse event occurs” (Quinnet, 2012, p. 3). Studies related to gatekeeper training indicate that it leads to improvements in skills, attitudes, and knowledge of people who complete training (Arce Indelicato, Mirsu-Paun, & Griffin, 2011; Mitchell, Kader, Darrow, Haggerty, & Keating, 2013; Tompkins & Witt, 2009; Wyman et al., 2008). In response to growing concern over students’ self-reported lack of emotional wellbeing, heightened by the loss of several students to suicide within a short period of time, our institution committed to expanding suicide prevention and awareness efforts by creating a comprehensive program entitled RU OK. One key feature of the program included providing QPR training to students, faculty, and staff. To target efforts toward first-year students, the First Year Experience (FYE) staff of Student
Mining classification rules from fuzzy min-max neural network

The basic fuzzy min-max neural network (FMMN) is capable to perform the supervised classification of data. As like other artificial neural networks, FMMN is also like a black box and expressed in terms of min-max values and associated class label. So the justification of classification results given by FMMN is required to be obtained to make it more adaptive to the real world applications. This paper proposes the model to extract classification rules from trained FMMN. These rules justify the classification decision given by FMMN. For this FMMN is trained for the input data and resulting min-max values in the quantized form and class labels of created hyperboxes are passed as a input to the partial rule extraction (PART) algorithm of Waikato Environment for Knowledge Analysis (WEKA). As a result, more comprehensible rules expressed in terms human readable linguistic terms are extracted. The proposed model is applied to iris and wine dataset taken from the UCI machine learning repository. Thus the extracted rules represent the trained FMMN in the more understandable form and can easily be applied to real world applications.
Exploring EFL Students’ Metacognitive Strategies in Speaking Class: An Indonesian Context

The study is intended to investigate metacognitive strategies used by English as Foreign Language (EFL) students in their Speaking class in the Indonesian context. Specifically, this study aims at revealing the metacognitive strategies used by the EFL Students and the impacts of using those strategies related to the students’ improvement in their speaking ability. The study is a case study in which the data are collected through observations, questionnaires, and documents. It involves fifteen EFL students at the second semester in a State Islamic University in Indonesia. The findings reveal two points. First, using Oxford's (1990) metacognitive strategies categories, the EFL students utilized the strategies of overviewing and linking with their prior knowledge, paying attention, organizing, delaying the speech to focus on listening, identifying the purpose of a language task, seeking practice opportunities, self-monitoring, and self-evaluating during learning speaking class. Second, the speaking scores of the EFL students who applied metacognitive strategies are higher (above 80) than those who did not. These findings indicate that metacognitive strategies help students learn better. Practically, these results contribute a new insight into Teaching English as Foreign Language (TEFL) in Indonesian context in which the metacognitive strategies are a new issue.
Dopamine signaling and the distal reward problem

Actions and their associated consequences, such as reward attainment, are often temporally distant. Animals nevertheless learn such associations thereby solving the ‘distal reward’ problem. We sought to determine whether dopamine signaling plays a role in such learning. Wild-type and dopamine type I receptor knockout mice executed three left/right choices leading to one of eight differentially rewarded goal sites. Compared with wild-type mice, knockouts exhibited selective impairments in decision making at choice points distal, but not proximal, to goal sites. We conclude that dopamine's role in reinforcement learning depends on the temporal relationship of actions to reward and that dopamine signaling through D1 receptors constitutes a component of those brain mechanisms responsible for solving the distal reward problem.
On the effects of combined atmospheric fading and misalignment on the hybrid FSO/RF transmission

Free-space optical (FSO) communication is known for its various impairments such as atmospheric turbulence and misalignment fading. In this paper, we study the performance of an FSO link operating under combined path loss and atmospheric and misalignment fadings. We derive a closed-form expression for the bit error rate (BER) of the FSO link in such conditions when the on-off keying (OOK) modulation is employed and when the fluctuations of the received signal are modeled by Gamma- Gamma distribution. In addition, we evaluate the effects of the combined fadings on the outage probability of the FSO link for different strengths of turbulence and pointing errors. Furthermore, we investigate the advantages of combining radio frequency (RF) with FSO to form hybrid FSO/ RF systems. The RF link is based on 16 quadrature amplitude modulation (16-QAM) and on Rician channel fading. We study the performance of the hybrid FSO/RF system in terms of outage probability and BER and find that the hybrid FSO/RF system can overcome the weaknesses of FSO links, which are sensitive to atmospheric variations and misalignment fading.
Illuminating the ‘Face’ of Justice: A Meta‐Analytic Examination of Leadership and Organizational Justice

A significant body of research has described effective leader behaviours and has connected these behaviours to positive employee outcomes. However, this research has yet to be systematically integrated with organizational justice research to describe how leader behaviours inform justice perceptions. Therefore, we conduct a meta‐analysis (k = 166, N = 46,034) to investigate how three types of leader behaviours (task, relational, and change) inform four dimensions of organizational justice (procedural, distributive, interpersonal, and informational) referenced to the leader and to the organization. Further, we examine the joint impact of leader behaviours and justice perceptions on social exchange quality (i.e., leader–member exchange), task performance, and job satisfaction. Our results suggest that leader behaviours differentially inform leader‐ and organization‐focused justice perceptions, and the joint effect of leader behaviours and justice perceptions offer more nuanced explanations for outcomes.
Stability analyses of static greedy link schedulings in MC-MR wireless networks

Static greedy link schedulings have much simpler implementation than dynamic greedy link schedulings such as Longest-queue-first (LQF) link scheduling. However, its stability performance in multi-channel multi-radio (MC-MR) wireless networks is largely under-explored. In this paper, we present a stability subregion with closed form of a static greedy link scheduling in MC-MR wireless networks under the 802.11 interference model. By adopting some special static link orderings, the stability subregion is within a constant factor of the stable capacity region of the network. We also obtain constant lower bounds on the throughput efficiency ratios of the static greedy link schedulings in some special static link orderings.
Specific Learning Disabilities Identification: Do the Identification Methods and Data Matter?

Specific learning disabilities (SLD) identification has consistently been shown to be problematic; however, research has largely focused on SLD identification using test scores only. The present study, therefore, examined SLD identification decisions across identification methods and student evaluation data levels, including test scores, background information, and observations. Participants included 461 school psychologists who were randomly assigned to one of 12 conditions to make identification decisions. Results indicated that response to intervention (RtI) methods resulted in greater identification consistency than ability-achievement discrepancy while pattern of strengths and weaknesses (PSW) resulted in lower identification consistency than ability-achievement discrepancy. However, background information and observation data did not impact SLD identification consistency. Implications for practice and research are also discussed.
A parameter partial-sharing CNN architecture for cross-domain clothing retrieval

Cross-domain clothing retrieval is a challenging task due to significant differences between online shop images taken in controlled conditions of clean backgrounds, good lighting, and fixed poses, and street photos captured in uncontrollable conditions. In recent years, Convolutional Neural Networks (CNNs) have demonstrated its effectiveness for various computer vision problems including image retrieval. There are two mainstream CNNs based models addressing image retrieval tasks: triplet network models [1] and siamese network models [2]. In this paper, we first make a thorough comparison between the two types of models, and investigate the impact of different domain adaptation schemes including parameter sharing, non-sharing, and a new partial-sharing strategy between the street domain and the shop domain. Extensive experiments have revealed that the proposed partial-sharing scheme is able to reduce the number of parameters by a significant margin, while achieving comparable retrieval accuracy as the state-of-the-art scheme using triplet loss with non-sharing parameters.
Molecular cloning and mRNA expression analysis of carp embryonic, slow and cardiac myosin heavy chain isoforms

SUMMARY Three embryonic class II myosin heavy chains (MYHs) were cloned from the common carp (Cyprinus carpio L.), MYHemb1, MYHemb2 and MYHemb3. MYH DNA clones were also isolated from the slow muscle of adult carp acclimated to 10°C (MYHS10) and 30°C (MYHS30). Phylogenetic analysis demonstrated that MYHemb1 and MYHemb2 belonged to the fast skeletal muscle MYH clade. By contrast, the sequence of MYHemb3 was similar to the adult slow muscle isoforms, MYHS10 and MYHS30. MYHemb1 and MYHemb2 transcripts were first detected by northern blot analysis in embryos 61 h post-fertilization (h.p.f.) at the heartbeat stage, with peak expression occurring in 1-month-old juveniles. MYHemb1 continued to be expressed at low levels in 7-month-old juveniles when MYHemb2 was not detectable. MYHemb3 transcripts appeared at almost the same stage as MYHemb1 transcripts did (61 h.p.f.), and these genes showed a similar pattern of expression. Whole mount in situ hybridization analysis revealed that the transcripts of MYHemb1 and MYHemb2 were expressed in the inner part of myotome, whereas MYHemb3 was expressed in the superficial compartment. MYHS10 and MYHS30 mRNAs were first detected at hatching. In adult stages, the expression of slow muscle MYH mRNAs was dependent on acclimation temperature. MYHS10 mRNA was expressed at an acclimation temperature of 10 and 20°C, but not at 30°C. In contrast, MYHS30 mRNA was strongly expressed at all acclimation temperatures. The predominant MYH transcripts found in adult slow muscle and in embryos at hatching were expressed in adult fast muscle at some acclimation temperatures but not others. A MYH DNA clone was isolated from the cardiac muscle of 10°C-acclimated adult fish (MYHcard). MYHcard mRNA was first detected at 61 h.p.f. , but strong signals were only observed in the adult myocardium. The present study has therefore revealed a complex pattern of expression of MYH genes in relation to developmental stage, muscle type and acclimation temperature. None of the skeletal muscle MYHs identified so far was strongly expressed during the late juvenile stage, indicating further developmentally regulated members of the MYH II gene family remain to be discovered.
Two‐sample density‐based empirical likelihood tests for incomplete data in application to a pneumonia study

In clinical trials examining the incidence of pneumonia it is a common practice to measure infection via both invasive and non‐invasive procedures. In the context of a recently completed randomized trial comparing two treatments the invasive procedure was only utilized in certain scenarios due to the added risk involved, and given that the level of the non‐invasive procedure surpassed a given threshold. Hence, what was observed was bivariate data with a pattern of missingness in the invasive variable dependent upon the value of the observed non‐invasive observation within a given pair. In order to compare two treatments with bivariate observed data exhibiting this pattern of missingness we developed a semi‐parametric methodology utilizing the density‐based empirical likelihood approach in order to provide a non‐parametric approximation to Neyman–Pearson‐type test statistics. This novel empirical likelihood approach has both a parametric and non‐parametric components. The non‐parametric component utilizes the observations for the non‐missing cases, while the parametric component is utilized to tackle the case where observations are missing with respect to the invasive variable. The method is illustrated through its application to the actual data obtained in the pneumonia study and is shown to be an efficient and practical method.
A comparative survey of routing protocol for vehicular sensor networks

Recently, vehicular sensor networks (VSNs) have been paid much attention. In VSNs, the vehicular sensors are equipped on vehicles, such as buses and cars. They move fast and have no strict constraints on processing power and storage capabilities. In this challenging mobile and novel environment, routing is a hot issue which needs more attention in the future works when traditional wireless sensor network routing approaches for data reporting become unfeasible. In this paper, we overview challenging issues of routing protocols for VSNs, and summarize and compare routing protocols which are adaptable to VSNs.
Gender roles, sociosexuality, and sexual behavior among US Black women

This study examined the relationship between gender roles and sociosexuality (an individual difference variable describing attitudes about sexual permissiveness and promiscuity), and their predictive pattern of HIV-related sexual risk behaviors. A geographically diverse sample of 275 adult, heterosexual Black women (mean age = 33.60 years), participated in a self-administered survey. Significant relationships were found between feminine traits and sociosexuality, and between sociosexuality and four of the five risky sexual behavior variables. Neither masculine nor feminine gender roles were related to any risky sexual behavior variables. Sociosexuality emerged as an important correlate that requires further exploration of its relationship to the attitudes and behaviors of Black women, and its potential relationship to HIV risk-related sexual behavior. The need for more attention to psychosocial variables, and consideration of context, cultural norms, and values is discussed as an important undertaking in order to garner an accurate picture of sexual risk behavior.
α3β1-integrin regulates hair follicle but not interfollicular morphogenesis in adult epidermis

α3β1-integrin is abundantly expressed in the epidermis, and in mice, ablation of the α3 gene results in embryonic defects and perinatal lethality. To determine the role of α3-integrin in adult skin development, we grafted skin from newborn α3-integrin-deficient mice on to ICRF nu/nu recipients. We report that adult α3-integrin-deficient skin has severe abnormalities restricted to hair follicle morphology, which include stunted hair follicle growth, increased hair follicle fragility, aberrant pigment accumulation and formation of hair follicle clusters. These abnormalities are caused by a combination of defects in: (1) keratinocyte cytoskeletal organisation, (2) outer root sheath architecture and (3) integrity of the lamina densa. Our results indicate that α3β1 is not essential for adult interfollicular epidermal differentiation, but it is required to direct several processes important in hair follicle maintenance and morphogenesis.
Integrating strategies from three predominant theories regarding romantic partner support of weight loss

Three theories are predominantly used to assess romantic partner support of individuals’ weight loss: self-determination, social control, and confirmation. Because all theories highlight partner strategies as a primary theoretical element and involve strategies that appear to overlap, the current study sought to create an overarching measure of partner support strategies. Study 1 assessed the items from scales across all three theories, and three overarching strategies emerged: encouragement (e.g., reassurances, understanding, praises), instrumental influence (e.g., requests, reminders, modeling), and coercion (e.g., affection withdrawal, judgment). Study 2 assessed the measurement, predictive, and concurrent validity of this three-strategy scale. Results suggested the three overarching strategies and their combinations explained more variance in weight management variables than the strategies of the individual theories. The goal of this research is not to critique the individual theories or measures but to channel research in this area, thereby expediting progress in combatting obesity.