Miracle-dz/UniFAR-FTUs huggingface dataset:
Highly Birefringent Photonic Crystal Fibers With Ultralow Chromatic Dispersion and Low Confinement Losses

Highly birefringent photonic crystal fibers (PCFs) with low confinement loss with ultralow and ultraflattened chromatic dispersions at wide wavelength band are presented. The transverse electric field vector distributions of two linearly polarized fundamental modes, their effective indices, modal birefringence, confinement losses and chromatic dispersion of the proposed PCFs are reported by using full-vector finite-element method (FEM). Significant improvements of PCFs in terms of the birefringence, chromatic dispersion and confinement losses are demonstrated by careful investigation of all air holes in each ring, air holes diameters and hole-to-hole spacing. In addition to this, the polarization beat length results of the proposed PCFs are also reported and discussed thoroughly.
TEMPERATURE AS A PREDETERMINING FACTOR IN THE DEVELOPMENT OF AVENA SATIVA.

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Simultaneous motion estimation and segmentation

We present a Bayesian framework that combines motion (optical flow) estimation and segmentation based on a representation of the motion field as the sum of a parametric field and a residual field. The parameters describing the parametric component are found by a least squares procedure given the best estimates of the motion and segmentation fields. The motion field is updated by estimating the minimum-norm residual field given the best estimate of the parametric field, under the constraint that motion field be smooth within each segment. The segmentation field is updated to yield the minimum-norm residual field given the best estimate of the motion field, using Gibbsian priors. The solution to successive optimization problems are obtained using the highest confidence first (HCF) or iterated conditional mode, (ICM) optimization methods. Experimental results on real video are shown.
An investigation of the influences of job autonomy and neuroticism on job stressor-strain relations

The impact of job autonomy and traits (i.e., neuroticism) on job stressor-strain relations was examined. Data were collected from 311 first-line employees and supervisors belonging to the service department of 42 enterprises. The results showed that low neuroticism negatively related with hindrance stressors, emotional exhaustion and disengagement. In addition, challenge stressors positively impacted employees’ emotional exhaustion and negatively influenced employees’ disengagement. However, hindrance stressors positively increased both the emotional exhaustion and disengagement of employees. Finally, results showed 3- way interactions among neuroticism, job autonomy, and stressors on strains. As predicted, the interaction of neuroticism and job autonomy moderated the relationships between challenge stressors and two strains (i.e., emotional exhaustion and disengagement), and the relationships between hindrance stressors and disengagement. Future research directions on the topic and practical implications of results are discussed.
Democracy and the Peaceful Settlement of International Conflict

The research reported here develops an explanation for the often-noted absence of international war between democratic states. This explanation is derived from a theoretical rationale centered on universal democratic norms for reconciling competing values and interests. I argue that democratic states locked in disputes are better equipped than others with the means for diffusing conflict situations at an early stage before they have an opportunity to escalate to military violence. Not only is this explanatory logic consistent with the published findings on democracy and war, but it also entails the novel empirical proposition that disputes between democracies are more amenable than are other disputes to peaceful settlements, the hypothesis I examine here. Analyses of contemporary interstate disputes reveal that even when potentially confounding factors are controlled, democratic opponents are significantly more likely to reach peaceful settlements than other types of disputants.
Early surgical treatment for supratentorial intracerebral hemorrhage: a randomized feasibility study.

BACKGROUND AND PURPOSE The safety and the effectiveness of the surgical treatment of spontaneous intracerebral hemorrhage (ICH) remain controversial. To investigate the feasibility of urgent surgical evacuation of ICH, we conducted a small, randomized feasibility study of early surgical treatment versus current nonoperative management in patients with spontaneous supratentorial ICH. METHODS Patients with spontaneous supratentorial ICH who presented to 1 university and 2 community hospitals were randomized to surgical treatment or best medical treatment. Principal eligibility criteria were ICH volume >10 cm(3) on baseline CT scan with a focal neurological deficit, Glasgow Coma Scale score >4 at the time of enrollment, randomization and therapy within 24 hours of symptom onset, surgery within 3 hours of randomization, and no evidence for ruptured aneurysm or arteriovenous malformation. The primary end point was the 3-month Glasgow Outcome Scale (GOS). A good outcome was defined as a 3-month GOS score >3. RESULTS Twenty patients were randomized over 24 months, 9 to surgical intervention and 11 to medical treatment. The median time from onset of symptoms to presentation at the treating hospitals was 3 hours and 17 minutes, the time from randomization to surgery was 1 hour and 20 minutes, and the time from onset of symptoms to surgery was 8 hours and 35 minutes. The likelihood of a good outcome (primary outcome measure: GOS score >3) for the surgical treatment group (56%) did not differ significantly from the medical treatment group (36%). There was no significant difference in mortality at 3 months. Analysis of the secondary 3-month outcome measures showed a nonsignificant trend toward a better outcome in the surgical treatment group versus the medical treatment group for the median GOS, Barthel Index, and Rankin Scale and a significant difference in the National Institutes of Health Stroke Scale score (4 versus 14; P=0.04). CONCLUSIONS Very early surgical treatment for acute ICH is difficult to achieve but feasible at academic medical centers and community hospitals. The trend toward less 3-month morbidity with surgical intervention in patients with spontaneous supratentorial ICH warrants further investigation of very early clot removal in larger randomized clinical trials.
Sensemaking and Communication Roles in Social Media Crisis Communication

Social media is becoming increasingly important during crisis situations. Affected people are now enabled to provide helpful on-site information, and emergency service organisations can use social media to inform people and communicate with them. This study addresses how different communication roles in social media affect sensemaking during crises situations. To this end, we conducted a study on Twitter during the Brussels attacks of 2016. We collected a sample of 3,223,197 tweets, which included a total of 1,535,943 participants. Our study reveals that, whereas information distribution dominates early crisis stages, attention-keeping gains in importance in subsequent stages. It is decisively depending on the characteristics and retweet behaviour of certain communication roles that information is being consulted by individuals in a situation of either lack of information or information overload.
Uptake of glycylglycine by the scutellum of germinating barley grain.

The scutella separated from germinating barley grains (Hordeum vulgare L. cv. Himalaya) took up the dipeptide [(14)C]glycylglycine (Gly-Gly) rapidly from incubation media. The pH optimum of the process was about 4.5, and the rate of uptake conformed to Michaelis-Menten kinetics with an apparent K(m) of 2.3 mm and V(max) of 41 mumole gram(-1) hour(-1). The uptake was strongly inhibited by dinitrophenol and cyanide and by lack of O(2). After incubation of the scutella with Gly-Gly, no intact Gly-Gly was detectable in the scutella but the level of free glycine increased. The poorly hydrolyzed "model" dipeptide glycylsarcosine, which is actively taken up and accumulated by the scutella, was a competitive inhibitor of the uptake of Gly-Gly and completely inhibited the uptake at infinitely high inhibitor concentration. This suggests that Gly-Gly is taken up by the same mechanism as glycylsarcosine as an intact dipeptide (without hydrolysis in the membrane) and is hydrolyzed to free glycine by the abundant peptidases of the scutella.The uptake of Gly-Gly was not affected by glycine or leucine, but was strongly inhibited by all of the 10 dipeptides tested for inhibition. The three dipeptides tested for uptake, Ala-Gly, Pro-Gly, and Gly-Pro, were all taken up by the scutella. Thus, the uptake mechanism for the dipeptides seems to be rather nonspecific with respect to the side chains of the amino acids. The high rates of the uptake suggest that this process has an essential role in the mobilization of reserve proteins in the germinating grain.
Are old witnesses always poorer witnesses? Identification accuracy, context reinstatement, own-age bias

Abstract Young adults (16–30 years) and old adults (64–86 years) (N=96) viewed a staged videotaped crime event involving a young and old perpetrator. Prior to viewing either target present (TP) or target absent (TA) line-ups, half the participants received context reinstatement photographs. For the young line-up a significant effect of age group was found with old participants demonstrating poorer performance. However, on the old line-up there was no significant effect of age group. Importantly, a significant beneficial effect of context reinstating photographs existed for participants viewing the old TA line-up. An own-age bias did not exist for either age group in terms of accuracy but young participants were significantly more likely to choose a line-up member from the old line-ups compared to the young line-ups. It was concluded that given certain circumstances it may be possible for old adults to perform at an equivalent level to young adults.
Interpreting WISC-R Verbal-Performance Discrepancies: A Note for Practitioners

Information relating to the significance of WISC-R Verbal-Performance IQ discrepancies and the frequencies of such differences in the standardization sample have been available to practitioners for several years. With regard to the magnitude of significant discrepancies -within the normal population, such data are often misunderstood and misinterpreted by clinicians. Specifically, the nondirectional aspect of significant frequencies reported in the literature is often misconstrued and interpreted incorrectly. An example of a common misinterpretation is presented as well as suggestions for remedying inaccuracies in reporting discrepancies between Verbal and Performance IQs and frequency data.
Periodical low eggshell temperatures during incubation and post hatch dietary arginine supplementation: Effects on performance and cold tolerance acquisition in broilers.

An experiment was conducted to evaluate the effects of a periodically low eggshell temperature exposure during incubation and dietary supplementation of arginine on performance, ascites incidence, and cold tolerance acquisition in broilers. A total of 2,400 hatching eggs were randomly assigned to 2 treatment groups (16 replicates of 75 eggs per treatment). The eggs were incubated at a constant eggshell temperature (EST) of 37. 8ºC throughout the incubation period (CON) or were periodically exposed to 15°C for one hour on days 11, 13, 15, and 17 of incubation and the EST was measured (periodical low EST; PLE). After hatching, 240 one-day-old male broiler chicks from both treatment groups were reared for 42 d with or without dietary arginine supplementation in a completely randomized design with a 2 × 2 factorial arrangement. In order to induce ascites, all chicks were exposed to a 15°C room temperature from 14 d onwards. Results showed that second grade chicks and yolk sac weight were decreased, and final body weight was increased in the PLE group. Ascites mortality rate was decreased only in the PLE group and dietary arginine supplementation had no apparent effect. In the PLE group, the packed cell volume (PCV) percentage and red blood cell (RBC) count were decreased. In conclusion, the results showed that the PLE treatment during incubation was associated with improved hatchability, chick quality, and productive performance of broilers and decreased ascites incidence during post hatch cold exposure. Dietary arginine supplementation had no beneficial effects in cold exposed broilers.
Is the hospital anxiety and depression scale (HADS) a reliable screening tool in early pregnancy?

The factor structure and internal reliability of the Hospital Anxiety and Depression Scale (HADS) was investigated to determine the suitability of the instrument for screening during early pregnancy. The study used a cross-sectional design with all observations taken at the antenatal booking clinic. Confirmatory factor analysis (CFA) of the HADS revealed that a three-factor solution offered the most parsimonious account of the data. However, the CFA further revealed that none of the factor models tested provided a consistent and good fit to the data. It was concluded that the HADS does not reliably assess distinct domains of anxiety and depression in early pregnancy. These findings suggest that the HADS is not a suitable screening tool for symptoms of anxiety and depression in this clinical group.
HPV16-E7 Expression in Squamous Epithelium Creates a Local Immune Suppressive Environment via CCL2- and CCL5- Mediated Recruitment of Mast Cells

Human Papillomavirus (HPV) 16 E7 protein promotes the transformation of HPV infected epithelium to malignancy. Here, we use a murine model in which the E7 protein of HPV16 is expressed as a transgene in epithelium to show that mast cells are recruited to the basal layer of E7-expressing epithelium, and that this recruitment is dependent on the epithelial hyperproliferation induced by E7 by inactivating Rb dependent cell cycle regulation. E7 induced epithelial hyperplasia is associated with increased epidermal secretion of CCL2 and CCL5 chemokines, which attract mast cells to the skin. Mast cells in E7 transgenic skin, in contrast to those in non-transgenic skin, exhibit degranulation. Notably, we found that resident mast cells in E7 transgenic skin cause local immune suppression as evidenced by tolerance of E7 transgenic skin grafts when mast cells are present compared to the rejection of mast cell-deficient E7 grafts in otherwise competent hosts. Thus, our findings suggest that mast cells, recruited towards CCL2 and CCL5 expressed by epithelium induced to proliferate by E7, may contribute to an immunosuppressive environment that enables the persistence of HPV E7 protein induced pre-cancerous lesions.
Interference between switched tasks

Interference between tasks in a task-switching situation was interpreted in terms of theoretical models of time-sharing. Controlled processing of two separate tasks in a time-sharing situation was hypothesized to require a strategy of management whose ease of execution depends on the complexity of the task involved. Switching from one task to the other requires activation • of the resources required for performance of the new task and inhibition of the resources engaged in the first task. Failures in either of these two processes will interfere with the performance of the second task. This hypothesis was tested in a situation in which subjects had to switch from one detection task to another. Interruption of one task to carry out another task increased both processing time and error rate in the second task. The types of error (intrusions, confusions and omissions) were considered to be specific to timesharing.
Effect of cigarette smoke extraction on the expression of found in inflammatory zone 1 in rat lung epithelial L2 cells

Background Found in inflammatory zone 1 (FIZZ1) protein increased in pulmonary epithelial cells and in limited amounts of other lung cells. FIZZ1 increased in murine model of smoke induced chronic obstructive pulmonary disease. However, the direct role of FIZZ1 produced by pulmonary epithelium stimulated with cigarette smoke extraction has not been determined. We examined the expression and function of FIZZ1 in rat lung epithelial L2 cells. Methods The rat lung epithelial L2 cells (CCL 149) were exposed to cigarette smoke extraction, expression of FIZZ1 mRNA was investigated by RT‐PCR. Levels of FIZZ1 protein were detected by Western blotting and laser confocal microscope. CCL 149 cells were treated with different concentrations and for different time of recombinant protein FIZZ1. After treatment, the expression levels of interleukin 8 (IL‐8) were detected by enzyme‐linked immunosorbent assay (ELISA). Results When CCL 149 cells were exposed to cigarette smoke extraction, FIZZ1 mRNA and protein levels expressed significantly higher than control group. Recombinant protein FIZZ1 promoted the expression of IL‐8 in a dose and time dependent manner in a certain range. Conclusions Cigarette smoke extraction activates FIZZ1 at mRNA and protein levels in CCL 149 cells. Recombinant protein FIZZ1 induces the expression of IL‐8 and may thus participate in the process of chronic obstructive pulmonary disease airway inflammation and airflow obstruction. Generally, immune cells such as macrophages, neutrophils and lymphocytes are unavoidably involved in airway inflammatory and immune responses to cigarette smoke, but it is still unclear whether their involvement in the pathogenesis of chronic obstructive pulmonary disease is based on the specific expression in lung epithelial cells of FIZZ1.
Prazosin reduces nightmares in combat veterans with posttraumatic stress disorder.

BACKGROUND Preclinical and clinical observations suggest that the centrally active alpha1-adrenergic antagonist prazosin might alleviate trauma content nightmares and other symptoms in combat veterans with chronic posttraumatic stress disorder (PTSD). METHOD In this retrospective chart review study, we analyzed data from 59 consecutive combat veterans with previously treatment-resistant chronic PTSD (DSM-IV criteria) and severe intractable trauma content nightmares to whom prazosin had been prescribed. Nightmare severity was quantified using the recurrent distressing dreams item of the Clinician Administered PTSD Scale (CAPS). Change in overall PTSD severity exclusive of nightmares was estimated by assigning a Clinical Global Impressions-Change scale (CGI-C) score based on chart review. RESULTS Mean +/- SEM recurrent distressing dreams item scores improved significantly (7.0 +/- 0.2 to 3.5 +/- 0.3, p <.0001) in the 36 patients who completed at least 8 weeks of prazosin treatment at their maximum titrated dose. The mean maximum prazosin dose achieved in these 36 patients was 9.6 +/- 0.9 mg/day. Recurrent distressing dreams scores also improved in the total group who filled their prazosin prescriptions (N = 51) (7.1 +/- 0.2 to 4.2 +/- 0.3, p <.0001). In a comparison group of 8 patients who did not fill their prazosin prescriptions but continued in outpatient treatment, there was no significant change in CAPS recurrent distressing dreams score (6.8 +/- 0.5 to 6.7 +/- 0.4). There also was at least some improvement in CGI-C ratings of overall PTSD severity exclusive of nightmares in a substantial majority of patients receiving prazosin, but not in the 8 comparison subjects. There were no serious adverse effects attributable to prazosin. CONCLUSION These observations suggest that prazosin may relieve symptomatic distress in PTSD, and they provide rationale for placebo-controlled trials of prazosin for PTSD trauma content nightmares and other PTSD symptoms.
Effect of body weight on reproduction and longevity of the ladybug predator Propylaea japonica

The objective of this research was to evaluate the influence of body weight on survival and reproductive parameters of female adults of Propylaea japonica (Coleoptera: coccinellidae). Treatments were represented by females of this predator with the following mean weight: 3.5±0.5 mg, 5.0±0.5mg, 6.5±0.5mg, 8.0±0.5mg and 9.0±0.5mg. Heavier females of P. japonica showed shorter preoviposition period while the number of eggs and of larvae per day presented a positive linear relationship with female weight of this predator. Longevity of females of P. japonica was similar between treatments with no tendency of variations as a function of body weight of these females. Since the objective of mass rearing facilities of predatory ladybugs is to produce the maximum possible number of larvae per day it is recommended to use females of P. japonica with weight above 8.0 mg.
Gender differences in the causal relation between adolescents' maths self-concept and scholastic performance

Mathematics is a core subject in every school curriculum and it is strongly correlated with maths self-concept, which is defined as the subjective feelings and beliefs about one's competence in maths. In general, boys tend to report higher maths self-concept than girls, but the difference between boys and girls' maths scholastic performance is low or even inexistent. Some authors maintain that academic self-concept can play an important role as a motivational variable, promoting self-confidence and investment in the learning process. This study examined the causal relations between maths self-concept and maths scholastic performance in four cohorts of boys and girls within a three-wave longitudinal study. The first two cohorts were composed of 187 girls and 139 boys attending grades 7 and 8 at Time 1 and the third and fourth cohorts were composed of 167 girls and 123 boys attending grades 9 and 10 at Time 1. Structural Equation Modelling was used to test the fit of several models of causal relations. The results revealed that for the first two cohorts the best models were reciprocal and skill-development for both boys and girls. However, for the older students, a reciprocal model gave a best fit for the boys, but for the girls there was only one significant effect from maths self-concept to maths scholastic performance. Results are discussed on the basis of gender-related differential learning expectancies.