Miracle-dz/UniFAR-FTUs huggingface dataset:
Antenna Geometry Conditions for MIMO Radar With Uncoupled Direction Estimation

We mainly focus on the role played by the antenna geometry in the direction estimation performance for a direction finding (DF) bistatic multiple-input multiple-output (MIMO) radar. First, we introduce the signal and the noise models which satisfy the space-time separability conditions. Then, we derive an expression of the Cramér-Rao lower bound (CRLB) on target parameters with the antenna locations for a single point target in the far-field scenario. We show that, under the space-time separability conditions, the temporal dimension parameters (range and range rate) and spatial dimension parameters [direction-of-departure (DOD) and the direction-of-arrival (DOA)] are uncoupled. We also show that DOD and DOA are uncoupled because of their spatial independence. In addition, we derive a set of the necessary and sufficient geometrical constraints for the uncoupled direction estimation which is based on the diagonal Fisher information matrix (FIM). We present that, when both the transmit and the receive antenna location parameters have equivalent auto-moment-of-inertia tensors of x and y axes, and zero cross-moment-of-inertia tensors of x, y and z axes, the bistatic MIMO radar system with uncoupled direction estimation can be obtained. The corresponding conditions are extended to monostatic MIMO radar case for their commonness of the colocated antenna geometry. In numerical example section, we show several representative antenna geometries to illustrate the antenna geometry conditions derived in this paper.
Effects of p27Kip1 on cell cycle status and viability in A549 lung adenocarcinoma cells

p27Kip1 is a cyclin-dependent kinase inhibitor, it negatively regulates G1 progression and is reported to modulate apoptosis. Phosphorylation of this protein is thought to regulate its intracellular localisation and affect its stability. The aim of this study was to regulate p27Kip1 expression levels, and to examine how this protein affects cell cycle status and modulates viability in A549 lung adenocarcinoma cells. In addition, the association between phosphorylation status of p27Kip1 and its intracellular localisation was investigated, using expression vectors with cDNA of p27Kip1 or mutants in which the phosphorylation sites had been mutated. Although overexpression of p27Kip1 reduced cell cycle progression, its removal did not change cell cycle status. Modest induction of p27Kip1 rescued adenovector-induced apoptosis and its removal with short interfering RNA increased spontaneous cell death. It was also observed that p27Kip1 localised mainly in the cytoplasm, and forced expression of p27Kip1 cDNA with the substitution of serine (S) 10, threonine (T) 157 and T198 to glutamate (phosphor-mimetic) induced its cytoplasmic localisation. In conclusion, p27Kip1, when expressed physiologically, exists mainly in the cytoplasm, has little effect on cell cycle status and contributes viability in A549 lung adenocarcinoma cells. It was also surmised that intracellular localisation of p27Kip1 dominates its function and that its localisation was partly determined by its phosphorylation.
Accuracy and Biases in Newlyweds' Perceptions of Each Other

There has been a long-standing debate about whether having accurate self-perceptions or holding positive illusions of self is more adaptive. This debate has recently expanded to consider the role of accuracy and bias of partner perceptions in romantic relationships. In the present study, we hypothesized that because accuracy, positivity bias, and similarity bias are likely to serve distinct functions in relationships, they should all make independent contributions to the prediction of marital satisfaction. In a sample of 288 newlywed couples, we tested this hypothesis by simultaneously modeling the actor effects and partner effects of accuracy, positivity bias, and similarity bias in predicting husbands' and wives' satisfaction. Findings across several perceptual domains suggest that all three perceptual indices independently predicted the perceiver's satisfaction. Accuracy and similarity bias, but not positivity bias, made unique contributions to the target's satisfaction. No sex differences were found.
The contribution of sulphate to total sulphur in a range of natural water samples

A comparison between two analytical techniques commonly used for the determination of sulphur concentrations in natural water samples is reported. Significant differences in the sulphur values obtained using inductively coupled plasma atomic emission spectrometry and ion chromatography are described. The contribution of a sulphur fraction (presumed to be organic S) not detected by ion chromatography is identified.
Work disability, lost productivity and associated risk factors in patients diagnosed with systemic lupus erythematosus

Objective To assess prevalence and correlates of work presenteeism, absenteeism and work disability (WD) in patients with systemic lupus erythematous (SLE) and matched controls. Methods Patients with SLE from six medical centres were recruited to complete a questionnaire consisting of several prevalidated survey instruments. The subject's rheumatologist completed medical history. Subjects recruited two non-SLE ‘best friend’ controls with matching demographics to complete a control survey. Analyses employed Student's t tests, χ2 tests and logistic regression models. Results 344 subjects with SLE and 322 controls submitted completed questionnaires. Mean pain, fatigue, Brief Cognitive Symptoms Index (BCSI) scores and depressive symptoms were worse in patients with SLE with WD (all p<0.01). WD was associated with African–American race, older age (51–65 years) and less than 4-year college education (all p<0.01). High presenteeism was associated with low pain and fatigue levels, higher BCSI scores and negatively correlated with depressive symptoms (all p<0.05). Increased pain and fatigue were associated with elevated absenteeism (p<0.05). Subjects with physically and cognitively demanding work reported worse presenteeism compared with controls with similar jobs (77% vs 85%, p<0.05 and 75% vs 85%, p<0.001), respectively. Patients with most cognitively demanding jobs reported greater weekly absenteeism (mean, 5.9 h) compared with controls (mean, 6.9 overtime hours, p<0.05). Conclusions The questionnaire demonstrated increased WD in SLE. Highly physical and highly cognitive jobs are challenging to patients with SLE and had increased absenteeism compared with controls. Depressive symptoms were correlated with better presenteeism without major socio-demographic determinants. Employability may be enhanced by improving treatment of depressive symptoms in patients with SLE.
Home Visiting for Intervention Delivery to Improve Rural Family Asthma Management

The focus of this article is on the use of home visits in an asthma self-management intervention study with rural families who have a school-aged child with asthma. The study design involved randomization of the sample by elementary schools, then baseline (pretest) and postintervention data collection.1 The purpose of this article is to describe challenges with, and pose solutions for, implementing home visits for asthma self-management in rural areas. Home visiting is a strategy for program delivery that takes advantage of the home context for tailoring services to address the family's individual needs. The advantages of intervening in the home include being able to (a) use actual home conditions for individualizing the asthma education to meet families' needs; (b) match home visitors with family in terms of ethnicity and language; (c) retain a high percentage of families over the year-long duration of the study; and (d) not add to family burden of managing asthma.
Biomixing by chemotaxis and efficiency of biological reactions: The critical reaction case

Many phenomena in biology involve both reactions and chemotaxis. These processes can clearly influence each other, and chemotaxis can play an important role in sustaining and speeding up the reaction. In continuation of our work [A. Kiselev and L. Ryzhik, “Biomixing by chemotaxis and enhancement of biological reactions,” Comm. Partial Differential Equations 37, 298–318 (2012)]10.1080/03605302.2011. 589879, we consider a model with a single density function involving diffusion, advection, chemotaxis, and absorbing reaction. The model is motivated, in particular, by the studies of coral broadcast spawning, where experimental observations of the efficiency of fertilization rates significantly exceed the data obtained from numerical models that do not take chemotaxis (attraction of sperm gametes by a chemical secreted by egg gametes) into account. We consider the case of the weakly coupled quadratic reaction term, which is the most natural from the biological point of view and was left open in Kiselev and Ryzh.
PENGARUH PRESTASI, LOCUS OF CONTROL, RESIKO, TOLERANSI AMBIGUITAS, PERCAYA DIRI, DAN INOVASI TERHADAP MINAT BERWIRAUSAHA MAHASISWA

This study focused on the psychological factors that determine the background for students to become entrepreneur. The purpose of the study to determine the effect of need for achievement, locus of control, risk, tolerance of ambiguity, self-confidence, innovation seeks to interest students. This study used a survey method approach to determine the influence between variables. The sample was students who have exhausted all departments entrepreneurship courses by 93 respondents. The sampling technique used was purposive random sampling. The instrument in this study was a questionnaire using multiple regression analysis using SPSS 19 for Windows. The results showed that there was a significant effect simultaneous between achievement, locus of control, risk, tolerance, confidence and innovation with interest in entrepreneurship. Then, partial no significant influence achievement with interest in entrepreneurship. No there is no significant effect of locus of control with interest in entrepreneurship. There is a significant effect of risk with interest in entrepreneurship. No significant effect of tolerance with interest in entrepreneurship. There is a significant effect of self-confidence with interest in entrepreneurship. There is asignificant effect of innovation with interest in entrepreneurship. The parties involved in developing entrepreneurship should be of increasing concern to the students so that the spirit of entrepreneurship better.
Deciphering the Precision of Stereo IKONOS Canopy Height Models for US Forests with G-LiHT Airborne LiDAR

Few studies have evaluated the precision of IKONOS stereo data for measuring forest canopy height. The high cost of airborne light detection and ranging (LiDAR) data collection for large area studies and the present lack of a spaceborne instrument lead to the need to explore other low cost options. The US Government currently has access to a large archive of commercial high-resolution imagery, which could be quite valuable to forest structure studies. At 1 m resolution, we here compared canopy height models (CHMs) and height data derived from Goddard's airborne LiDAR Hyper-spectral and Thermal Imager (G-LiHT) with three types of IKONOS stereo derived digital surface models (DSMs) that estimate CHMs by subtracting National Elevation Data (NED) digital terrain models (DTMs). We found the following in three different forested regions of the US after excluding heterogeneous and disturbed forest samples: (1) G-LiHT DTMs were highly correlated with NED DTMs with R 2 > 0.98 and root mean square errors (RMSEs) 0.84 and RMSEs of 2.7 to 4.1 m; and (3) one GCP CHMs for two study sites had R 2 > 0.7 and RMSEs of 2.6 to 3 m where data were collected less than four years apart. Our results suggest that IKONOS stereo data are a useful LiDAR alternative where high-quality DTMs are available.
Atomic force microscopy–based molecular studies on the recognition of immunogenic chlorinated ovalbumin by macrophage receptors

This report presents simple and reliable approach developed to study the specific recognition events between chlorinated ovalbumin (OVA) and macrophages using atomic force microscopy (AFM). Thanks to the elimination of nonspecific adhesion, the interactions of the native and chlorinated OVA with a membrane of macrophages could be quantified using exclusively the so‐called adhesion frequency (AF). The proposed system not only enabled the application of AFM‐based force measurements for such poorly defined ligand–receptor pairs but also significantly improved both the acquisition and the processing of the data. The proteins were immobilized on the gold‐coated AFM tips from the aqueous solutions containing charged thiol adsorbates. Such surface dilution of the proteins ensured the presence of single or just a few macromolecules at the tip‐surface contact. The formation of negatively charged monolayer on the tip dramatically limited its nonspecific interactions with the macrophage surface. In such systems, AF was used as a measure of the recognition events even if the interaction forces varied significantly for sets of measurements. The system with the native OVA, a weak immunogen, showed only negligible AF compared with 85% measured for the immunogenic chlorinated OVA. The AF values varied with the tip‐macrophage contact time and loading velocity. Blocking of the receptors by the chlorinated OVA was also confirmed. The developed approach can be also used to study other ligand–receptor interactions in poorly defined biological systems with intrinsically broad distribution of the rupture forces, thus opening new fields for AFM‐based recognition on molecular level. Copyright © 2012 John Wiley & Sons, Ltd.
Selection of cytotoxic T-cell precursors specific for minor histocompatibility determinants. I. Negative selection across H-2 barriers induced with disrupted cells but not with glutaraldehyde- treated cells: evidence for antigen processing

Intravenous injection of CBA mice with H-2-compatible irradiated B10.BR spleen cells led to a sequence of negative and positive selection of the host T-cell response against the multiple foreign minor histocompatibility antigens (HA) on the injected cells. By 1 d posttransfer, thoracic duct lymphocytes (TDL) of the host had lost the capacity to differentiate in vitro into cytotoxic cells specific for the injected minor HA; spleen and lymph node cells, by contrast, gave normal or enriched responses at this time. By 5 d posttransfer, TDL were hyperresponsive to the injected antigens. Selection with disrupted (sonicated) cells gave similar findings. With injection of either irradiated of disrupted spleen cells, the H-2 haplotype of the minor HA- bearing cells had no apparent effect on the magnitude of selection. By contrast, treatment of spleen cells with glutaraldehyde before injection led to H-2 restriction of selection, i.e., negative selection of the CBA response to B10.BR was marked with injection of glutaraldehyde-treated H-2-compatible B10.BR cells but was minimal with H-2-different B10 or B10.D2 cells. These data are taken to imply that, at least in H-2-incompatible situations, the minor HA-bearing cells must be processed by host cells, i.e., to allow the antigens to become associated with self H-2 determinants. Circumstantial evidence from studies on the specificity of selection induced with glutaraldehyde- treated cells from mice of the B10 recombinant strains suggested that I region-restricted T cells may control the induction of H2K, D- restricted cytotoxic precursor cells.
Unexpected collapse in apparently healthy newborns – a prospective national study of a missing cohort of neonatal deaths and near-death events

Background Sudden and unexpected postnatal collapse (SUPC) of a healthy newborn infant is a rare event, which carries a high risk of mortality and significant neurodisability in survivors. An underlying condition can be found in 60% of cases who undergo detailed postmortem but in the remainder there are important associations with prone position, breast feeding and primiparous status. The authors undertook a prospective study to ascertain the population incidence of SUPC in the UK. Methods Cases were referred through the British Paediatric Surveillance Unit reporting scheme over a 13-month period. Infants were at ≥37 weeks of gestation, had an Apgar score of ≥8 at 5 min, collapsed within 12 h in hospital requiring positive pressure ventilation and either died or received ongoing intensive care. Data were collected on maternal and infant characteristics, clinical investigations and 1-year outcome. Findings 45 cases were reported, an incidence of 0.05/1000 live births of whom 12 infants died. In 15/45 infants, an underlying disease/abnormality was determined. In 30/45 cases (0.035/1000 live births), no such cause was found, but in 24, the clinical/pathological diagnosis was airway obstruction during breast feeding or in prone position. Mothers were commonly primiparous and unattended by clinical staff before collapse was recognised. Approach to investigation was highly disparate and frequently very limited. Of the 30 infants with no underlying disease/abnormality, 22 (73%) developed a postasphyxial encephalopathy and 10 had a poor outcome (33%) – 5 died and 5 had neurological sequelae at 1 year. Interpretation SUPC is rare in any one centre and there is no standard approach to investigation. In those cases where collapse is not due to an underlying abnormality, breast feeding and prone position are important associations. Guidelines for safe postnatal care of infants should include appropriate vigilance of infants particularly where mothers are primiparous or where ability to assess the baby may be impaired.
Developmental Differences in the Ability to Provide Temporal Information About Repeated Events

Summary: Children (n=372) aged 4–8years participated in one or four occurrences of a similar event and were interviewed 1week later. Compared with 85% of children who participated once, less than 25% with repeated experience gave the exact number of times they participated, although all knew they participated more than once. Children with repeated experience were asked additional temporal questions, and there were clear developmental differences. Older children were more able than younger children to judge relative order and temporal position of the four occurrences. They also demonstrated improved temporal memory for the first and last relative to the middle occurrences, while younger children did so only for the first. This is the first systematic demonstration of children’s memory for temporal information after a repeated event. We discuss implications for theories of temporal memory development and the practical implications of asking children to provide temporal information. Copyright © 2015 John Wiley & Sons, Ltd. Events that occur on a repeated basis are part of everyday experience (e.g., going to work or school) and tend to be highly similar, although particular episodes may include unique details. Unfortunately, some children experience negative events such as bullying or abuse that occur on a regular basis and often have similar characteristics across occurrences. Children typically find it challenging to distinguish and discuss a single occurrence of a repeated event (e.g., Powell, Roberts, Ceci, & Hembrooke, 1999; Roberts & Powell, 2001), although older children tend to have less difficulty than younger children when attributing details to individual occurrences (e.g., Farrar & Boyer-Pennington, 1999). Nonetheless, in many jurisdictions, children who allege repeated abuse are required to particularize, or discuss specific instances of an event with an adequate degree of precision in reference to time, place, or other unique contextual detail, and are often questioned about the frequency of repeated events, in order for an investigation to proceed ( Sv . R, 1989; see Powell, Roberts & Guadagno, 2007).
Stochastic Completion Fields: A Neural Model of Illusory Contour Shape and Salience

We describe an algorithm and representation-level theory of illusory contour shape and salience. Unlike previous theories, our model is derived from a single assumption: that the prior probability distribution of boundary completion shape can be modeled by a random walk in a lattice whose points are positions and orientations in the image plane (i.e., the space that one can reasonably assume is represented by neurons of the mammalian visual cortex). Our model does not employ numerical relaxation or other explicit minimization, but instead relies on the fact that the probability that a particle following a random walk will pass through a given position and orientation on a path joining two boundary fragments can be computed directly as the product of two vector-field convolutions. We show that for the random walk we define, the maximum likelihood paths are curves of least energy, that is, on average, random walks follow paths commonly assumed to model the shape of illusory contours. A computer model is demonstrated on numerous illusory contour stimuli from the literature.
Party mandates and the politics of attention

This article develops an attention-based model of party mandates and policy agendas, where parties and governments are faced with an abundance of issues and must divide their scarce attention across them. In government, parties must balance their desire to deliver on their electoral mandate (i.e. the ‘promissory agenda’) with a need to continuously adapt their policy priorities in response to changes in public concerns and to deal with unexpected events and the emergence of new problems (i.e. the ‘anticipatory agenda’). Parties elected to office also have incentives to respond to issues prioritized by the platforms of their rivals. To test this theory, time series cross-sectional models are used to investigate how the policy content of the legislative program of British government responds to governing and opposition party platforms, the executive agenda, issue priorities of the public and mass media.
Manic side effects may emerge with antiviral treatment Hepatitis C and interferon: Watch for hostility, impulsivity

egylated interferon-alpha with ribavirin is the most effective therapy for chronic hepatitis C infection, but psychiatric patients often discontinue IFN-alpha because of its mood side effects. Most studies describe depressive states, although manic symptoms—irritability, aggression, anger, hostility, emotional lability, anxiety, panic attacks, and insomnia—also have been reported. To help you manage adverse mood changes and prevent IFN-alpha treatment discontinuation in patients with hepatitis C, this article: • reviews studies of patients with a history mood disorders who were treated with IFN-alpha • explains how to recognize and treat IFNalpha-induced mood disturbances when antidepressants are contraindicated.
Age-Related Work Motivation Declines: Myth or Reality?

Actual and widely assumed age-related work motivation changes are differentiated. Self-rated extrinsic motivation (compensation and recognition) of university alumni decreased as respondent age increased, while intrinsic motivation (challenge and task enjoyment) did not vary with age. As respondent age increased, ratings of older workers' intrinsic motivation increased, but older workers' perceived extrinsic motivation did not vary. Younger respondents (under 50) consistently rated themselves higher than older workers, while older respondents did so only on challenge and recognition motivation. Interventions to reduce age stereotypes should be directed at workers of all ages.