Miracle-dz/UniFAR-FTUs huggingface dataset:
Optimizing Data Aggregation for Uplink Machine-to-Machine Communication Networks

Machine-to-machine (M2M) communication's severe power limitations challenge the interconnectivity, access management, and reliable communication of data. In densely deployed M2M networks, controlling and aggregating the generated data is critical. We propose an energy-efficient data aggregation scheme for a hierarchical M2M network. We develop a coverage probability-based optimal data aggregation scheme for M2M devices to minimize the average total energy expenditure per unit area per unit time or simply the energy density of an M2M communication network. Our analysis exposes the key tradeoffs between the energy density of the M2M network and the coverage characteristics for successive and parallel transmission schemes that can be either half-duplex or full-duplex. Comparing the rate and energy performances of the transmission models, we observe that successive mode and half-duplex parallel mode have better coverage characteristics compared to full-duplex parallel scheme. Simulation results show that the uplink coverage characteristics dominate the trend of the energy consumption for both successive and parallel schemes.
An Investigation of Operational Decision Making in Situ

Objective The aim of this study was to better understand the nature of decision making at operational incidents in order to inform operational guidance and training. Background Normative models of decision making have been adopted in the guidance and training for emergency services. In these models, it is assumed that decision makers assess the current situation, formulate plans, and then execute the plans. However, our understanding of how decision making unfolds at operational incidents remains limited. Method Incident commanders, attending 33 incidents across six U.K. Fire and Rescue Services, were fitted with helmet-mounted cameras, and the resulting video footage was later independently coded and used to prompt participants to provide a running commentary concerning their decisions. Results The analysis revealed that assessment of the operational situation was most often followed by plan execution rather than plan formulation, and there was little evidence of prospection about the potential consequences of actions. This pattern of results was consistent across different types of incident, characterized by level of risk and time pressure, but was affected by the operational experience of the participants. Conclusion Decision making did not follow the sequence of phases assumed by normative models and conveyed in current operational guidance but instead was influenced by both reflective and reflexive processes. Application These results have clear implications for understanding operational decision making as it occurs in situ and suggest a need for future guidance and training to acknowledge the role of reflexive processes.
Variations in the thrombomodulin and endothelial protein C receptor genes in couples with recurrent miscarriage.

BACKGROUND Recurrent miscarriage (RM) has been suggested to be caused by mutations in genes coding for various coagulation factors resulting in thrombophilia. Mouse models indicate that genes involved in the protein C anticoagulant pathway are essential for normal embryonic development. Loss of function of two of these genes, thrombomodulin (TM) and endothelial protein C receptor (EPCR), causes embryonic lethality in mice. The aim of this study was to determine whether variations in the human TM or EPCR genes are associated with an increased risk for RM. METHODS Forty-six RM patients and 191 controls were screened for mutations in TM and EPCR using denaturing high-performance liquid chromatography (DHPLC). The partners of 40 RM patients were also screened. RESULTS One exonic and one intronic variation in TM and two exonic and two intronic sequences in EPCR were detected. Four variants were common in both patients and controls. A previously identified truncating mutation in EPCR, suggested to have a role in pregnancy complications, was identified in two patients and one control. A novel deletion in the 3'UTR region of TM was detected, but its significance remains unsolved. CONCLUSIONS These data suggest that mutations in the TM or EPCR genes are not a major cause of RM, although they may exert a modifier effect in combination with other variants.
WDR12, a Member of Nucleolar PeBoW-Complex, Is Up-Regulated in Failing Hearts and Causes Deterioration of Cardiac Function

Aims In a recent genome-wide association study, WD-repeat domain 12 (WDR12) was associated with early-onset myocardial infarction (MI). However, the function of WDR12 in the heart is unknown. Methods and Results We characterized cardiac expression of WDR12, used adenovirus-mediated WDR12 gene delivery to examine effects of WDR12 on left ventricular (LV) remodeling, and analyzed relationship between MI associated WDR12 allele and cardiac function in human subjects. LV WDR12 protein levels were increased in patients with dilated cardiomyopathy and rats post-infarction. In normal adult rat hearts, WDR12 gene delivery into the anterior wall of the LV decreased interventricular septum diastolic and systolic thickness and increased the diastolic and systolic diameters of the LV. Moreover, LV ejection fraction (9.1%, P<0.05) and fractional shortening (12.2%, P<0.05) were declined. The adverse effects of WDR12 gene delivery on cardiac function were associated with decreased cellular proliferation, activation of p38 mitogen–activated protein kinase (MAPK)/heat shock protein (HSP) 27 pathway, and increased protein levels of Block of proliferation 1 (BOP1), essential for ribosome biogenesis. Post-infarction WDR12 gene delivery decreased E/A ratio (32%, P<0.05) suggesting worsening of diastolic function. In human subjects, MI associated WDR12 allele was associated significantly with diastolic dysfunction and left atrial size. Conclusions WDR12 triggers distinct deterioration of cardiac function in adult rat heart and the MI associated WDR12 variant is associated with diastolic dysfunction in human subjects.
Overview on the physics and materials of the new superconductor KxFe2−ySe2

Since the discovery of high temperature superconductivity in iron pnictides in early 2008, many iron-based superconductors with different structures have been discovered, with the highest transition temperature to date being 57 K. By the end of 2010, another kind of new superconductor, the Fe-based chalcogenide K1−xFe2−ySe2 was discovered. A naive counting of the electrons in the system would lead to the conclusion that the system is heavily electron overdoped (∼0.4 e/Fe). Band structure calculations further support this speculation and predict that the hole pockets which are found in the iron pnictides may be missing. This greatly challenges the widely perceived picture that the superconducting pairing is established by exchanging antiferromagnetic (AF) spin fluctuations and that the electrons are scattered between the electron and hole pockets. Later, it was found that both potassium and iron might be deficient in K1−xFe2−ySe2, yielding to a picture of phase separation. In this picture the superconducting phase and the AF phase may separate spatially into different regions. This generates further curiosity about what the real superconducting phase is, what the relationship is between the superconducting phase and the AF phase, and what the parent state is for the superconducting phase. We propose a ‘spider web’ model for the phase separation, which can explain both the transport and magnetic data. In this paper, we review the status of research in this rapidly growing field and list the important and unresolved issues as perspectives for future research.
Vimentin Is Required for Lung Adenocarcinoma Metastasis via Heterotypic Tumor Cell–Cancer-Associated Fibroblast Interactions during Collective Invasion

Purpose: Vimentin is an epithelial-to-mesenchymal transition (EMT) biomarker and intermediate filament protein that functions during cell migration to maintain structure and motility. Despite the abundance of clinical data linking vimentin to poor patient outcome, it is unclear if vimentin is required for metastasis or is a correlative biomarker. We developed a novel genetically engineered mouse model (GEMM) to probe vimentin in lung adenocarcinoma metastasis. Experimental Design: We used the LSL-KrasG12D/Lkb1fl/fl/Vim−/− model (KLV−/−), which incorporates a whole-body knockout of vimentin and is derived from the Cre-dependent LSL-KrasG12D/Lkb1fl/fl model (KLV+/+). We compared the metastatic phenotypes of the GEMMs and analyzed primary tumors from the KLV models and lung adenocarcinoma patients to assess vimentin expression and function. Results: Characterization of KLV+/+ and KLV−/− mice shows that although vimentin is not required for primary lung tumor growth, vimentin is required for metastasis, and vimentin loss generates lower grade primary tumors. Interestingly, in the KLV+/+ mice, vimentin was not expressed in tumor cells but in cancer-associated fibroblasts (CAFs) surrounding collective invasion packs (CIPs) of epithelial tumor cells, with significantly less CIPs in KLV−/− mice. CIPs correlate with tumor grade and are vimentin-negative and E-cadherin–positive, indicating a lack of cancer cell EMT. A similar heterotypic staining pattern was observed in human lung adenocarcinoma samples. In vitro studies show that vimentin is required for CAF motility to lead tumor cell invasion, supporting a vimentin-dependent model of collective invasion. Conclusions: These data show that vimentin is required for lung adenocarcinoma metastasis by maintaining heterotypic tumor cell–CAF interactions during collective invasion. Clin Cancer Res; 24(2); 420–32. ©2017 AACR.
Ureaplasma urealyticum demonstrated by open lung biopsy in newborns with chronic lung disease

Lung biopsy tissue from eight infants with chronic lung disease was evaluated for the presence of Ureaplasma urealyticum. Specimens from four infants grew the organism. Pleural fluid cultures matched lung tissue but tracheal cultures were negative in two babies with positive lung tissue. There were no distinguishing pathologic findings in the four culture-positive infants which could be used to identify them vs. the culture-negative infants. Three culture-positive infants improved clinically after therapy directed at Ureaplasma even though two remained culture-positive. Ureaplasma grows in lung tissue of infants with chronic lung disease, it does not demonstrate any specific standard pathologic findings and tissue cultures do not match endotracheal cultures.
Antioxidant activity and total phenolic compounds of Dezful sesame cake extracts obtained by classical and ultrasound-assisted extraction methods

Sesame cake is a by-product of sesame oil industry. In this study, the effect of extraction methods (maceration and sonication) and solvents (ethanol, methanol, ethanol/water (50:50), methanol/water (50:50), and water) on the antioxidant properties of sesame cake extracts are evaluated to determine the most suitable extraction method for optimal use of this product. Total phenolic content is measured according to the Folin–Ciocalteu method and antioxidant activities of each extract are evaluated with the 2,2-diphenyl-1-picrylhydrazyl (DPPH), β-carotene bleaching, and ferric reducing/antioxidant power (FRAP) methods. The highest amount of total phenolic compounds is observed in ethanol-ultrasonic extract with the amount of 88.89 mg/g gallic acid equivalent. Methanol-ultrasonic extract with the amount of 88.475% indicates the highest activity in scavenging DPPH free radicals. In β-carotene-linoleic acid system, ethanol-ultrasonic extract indicates the highest inhibition percent of 45.64. In FRAP assay, ethanol/water (50:50)-maceration and ethanol/water (50:50)-ultrasonic extracts with the absorption of 1.132 and 1.0745 nm indicate the highest antioxidant activity.
Vegetation index‐based crop coefficients to estimate evapotranspiration by remote sensing in agricultural and natural ecosystems

Crop coefficients were developed to determine crop water needs based on the evapotranspiration (ET) of a reference crop under a given set of meteorological conditions. Starting in the 1980s, crop coefficients developed through lysimeter studies or set by expert opinion began to be supplemented by remotely sensed vegetation indices (VI) that measured the actual status of the crop on a field‐by‐field basis. VIs measure the density of green foliage based on the reflectance of visible and near infrared (NIR) light from the canopy, and are highly correlated with plant physiological processes that depend on light absorption by a canopy such as ET and photosynthesis. Reflectance‐based crop coefficients have now been developed for numerous individual crops, including corn, wheat, alfalfa, cotton, potato, sugar beet, vegetables, grapes and orchard crops. Other research has shown that VIs can be used to predict ET over fields of mixed crops, allowing them to be used to monitor ET over entire irrigation districts. VI‐based crop coefficients can help reduce agricultural water use by matching irrigation rates to the actual water needs of a crop as it grows instead of to a modeled crop growing under optimal conditions. Recently, the concept has been applied to natural ecosystems at the local, regional and continental scales of measurement, using time‐series satellite data from the MODIS sensors on the Terra satellite. VIs or other visible‐NIR band algorithms are combined with meteorological data to predict ET in numerous biome types, from deserts, to arctic tundra, to tropical rainforests. These methods often closely match ET measured on the ground at the global FluxNet array of eddy covariance moisture and carbon flux towers. The primary advantage of VI methods for estimating ET is that transpiration is closely related to radiation absorbed by the plant canopy, which is closely related to VIs. The primary disadvantage is that they cannot capture stress effects or soil evaporation. Copyright © 2011 John Wiley & Sons, Ltd.
Subjective well‐being of mental health nurses in the United Kingdom: Results of an online survey

The aim of the present study was to measure the subjective well-being of a group of 225 UK registered mental health nurses (MHN) using three survey measures, and to identify whether certain demographic and workplace factors correlated with subjective well-being measure scores. An online survey incorporating the subjective well-being questions used by the Office for National Statistics, the Satisfaction with Life Scale, and the Warwick Edinburgh Mental Well-Being Scale was administered to members of two professional bodies for MHN. There was good consistency between the three subjective well-being measures, each demonstrating that UK MHN had a relatively low subjective well-being. Apart from the Office for National Statistics question, 'Overall, to what extent do you feel the things you do in your life are worthwhile? ', demographic and workplace factors did not correlate with subjective well-being measure scores, although the characteristics of being male, living alone, and being aged 40-49 years were associated with lower mean scores on all three measures. The findings of the exploratory study suggest that a similar study should be undertaken with a larger representative population of MHN, and that qualitative research should explore why and how UK MHN have relatively low subjective well-being. The limitations of this study, namely the response rate and sample representativeness, mean that the results of the present study must be tested in further research on the MHN population.
Alkyl nitrate measurements during STERAO 1996 and NARE 1997: Intercomparison and survey of results

Alkyl nitrates were measured over the northeastern plains of Colorado during the Stratospheric Tropospheric Exchange: Radiation, Aerosols and Ozone (STERAO) 1996 campaign and over the North Atlantic during the North Atlantic Regional Experiment (NARE) 1997. Alkyl nitrate measurements were performed by two different laboratories enabling an intercomparison of analytical techniques. A weighted bivariate linear regression analysis of comparable samples (National Oceanic and Atmospheric Administration versus National Center for Atmospheric Research) for the four alkyl nitrates measured by both techniques (2-propyl nitrate, 1-propyl nitrate, 2-butyl nitrate, and 3-pentyl nitrate) suggests there is neither a significant calibration difference nor a systematic offset. The precision of the measurements is indicated by the scatter in the correlations. Good precision is observed for the 2-butyl nitrate measurements (square of the correlation coefficient, R2 = 0.90). However, relatively small values of R2 and relatively large uncertainties in the determination of the slopes and intercepts (2σ confidence intervals) for 2-propyl nitrate, 1-propyl nitrate, and 3-pentyl nitrate suggest significant imprecision when compared to ambient mixing ratios for at least one of the measurement techniques. Vertical profiles during NARE 1997 show high levels of alkyl nitrates in well-defined photochemical pollution layers of continental origin. A comparison of alkyl nitrate to hydrocarbon ratios with a sequential reaction scheme model suggests our understanding of C4–C5 alkyl nitrate photochemistry is adequate to reproduce the observations. Air masses with larger ratios of alkyl nitrate to hydrocarbons were observed during NARE 1997 than STERAO 1996, consistent with the NARE 1997 measurements being in the more remote North Atlantic. These results suggest that information related to the photochemical age of an air mass can be derived from alkyl nitrate to hydrocarbon ratios.
Mass transport‐dominated sedimentation in a foreland basin, the Hidaka Trough, northern Japan

Mass transport is an important process of sediment redistribution from shallow to deep sea basins. It is vital to understand this process for disaster prevention and protection of economic interests in coastal and offshore areas. We describe mass transport‐dominated sedimentation in an active foreland basin, the Hidaka Trough, which developed from collision between the northeastern Japan arc and the Kuril arc. The basin is deformed by east‐west compression associated with large, frequent earthquakes. The trough is filled with thick (>4.5 km) sediments, ranging from coal‐bearing Cretaceous terrestrial strata to modern diatomaceous hemipelagic mud and volcanic ash. Bottom‐simulating reflectors and the distribution of mud volcanoes, pockmarks, and acoustic wipe‐out zones on the seismic records suggest the presence of subsurface gases in the sediments. The basin features stacked mass transport deposits (MTDs), but no channel‐levee systems have developed. The MTDs are relatively thin (<30 m) and are derived from three sides of the basin margin. Initiation of submarine slope failure in this area may be controlled by multiple factors that increase driving forces and decrease resistance of the slopes. The driving forces include oversteepening of the margin slope as a result of thrusting and folding, and additional downslope gravitational acceleration caused by cyclic shaking during earthquakes. Decreased resistance in the slopes may be caused by the accumulation of excess pore‐water pressure driven by a high‐sedimentation rate, gas hydrate dissociation accompanying changes in sea level or seawater temperature, and liquefaction in coarse‐grained beds during earthquakes.
Polymer wall coatings for capillary electrophoresis

This review article describes the preparation of dynamic and static polymeric wall coatings for capillary electrophoresis. Properties of bare fused‐silica surfaces and methods for the characterization of capillary coatings are summarized. The preparation and basic properties of neutral and charged wall coatings are considered. Finally, advantages and potential applications of various coatings are discussed.
Toward a Theory of Psychological Ownership in Organizations

Building upon the observation that individuals feel ownership toward a variety of targets, we suggest that under certain conditions, organizational members can develop feelings of ownership toward the organization and various organizational factors. We define psychological ownership, identify its “roots” and the primary “routes” through which it develops, and propose certain organizational outcomes. We discuss the conceptual distinctiveness of psychological ownership from a set of related constructs and suggest some theoretical and managerial implications of our theory.
U‐Pb geochronology of zircons from lunar breccia 73217 using a sensitive high mass‐resolution ion microprobe

U-Pb ages of four zircons in thin-sections of lunar breccia 73217 have been determined using the sensitive high-resolution ion microprobe, SHRIMP. All crystals show remarkably little loss of radiogenic Pb and give U-Pb ages that are within 10% of concordance at 4356−14+23 m.y. Two of the crystals show evidence of radiogenic initial Pb that evolved in a source with μ ∼2000. One zircon is an inclusion in an ilmenite of the clast assemblage, which shows that the zircons belong to that assemblage and strongly suggests that they date formation of the (igneous) rock from which the clasts were derived. The principal loss of radiogenic Pb from the zircons occurred significantly later than 3900 m.y. but probably earlier than 1000 m.y. Two of the zircons are optically and chemically zoned and only partly metamict. U, Th, Yb, Y, and P are relatively enriched in the metamict region of one.
Industrial Democracy as Determinant of Job Satisfaction among Workers of Public Health Institutions in Ogun State , Nigeria

This study investigated industrial democracy as a determinant of job satisfaction among workers of public health institutions in Ogun State of Nigeria. The study employed the ex-post-facto research design. In carrying out the research, five hypotheses were generated and tested using an instrument titled “industrial democracy and job satisfaction scale’ (IDJSS) which comprised of 20 items. The instrument was administered to a purposely selected population of 100 staff of Olabisi Onabanjo University Teaching Hospital, Sagamu, Ogun State and State Hospital, Ijebu-Ode, Ogun State. Pearson moment correlation coefficient was used to test all the five hypotheses. The findings show that industrial democracy factors of information participation, consultative participation, associative participation, administrative participation and decisive participation have significant positive correlation with workers job satisfaction as follows – information participation(r=0.622, p <0.005); consultative participation(r=0.800, p<0.05); associative participation (r=0.876,p<0.005); administrative participation (r=0.818, p<0.005) and decisive participation (r=0.809, p<0.005). The study therefore recommended that managers of tertiary health institutions in Ogun State should develop a plat form where all cadres of workers will participate in the management of the institution and be updated with key happenings in the institutions as this will guarantee their satisfaction and higher productivity.