Miracle-dz/UniFAR-FTUs huggingface dataset:
Broadband Polarization-Reconfigurable Water Spiral Antenna of Low Profile

This letter presents a novel circularly polarized water spiral antenna with polarization reconfigurability and low profile. It is basically an Archimedean spiral antenna with two water arms and fed by a parallel stripline. A conducting plate is used as the reflecting plane for unidirectional radiation. A glass container with two water channels, the upper one for left-hand circular polarization and the lower one for right-hand circular polarization, is mounted above the reflecting plane. By controlling the water flow among the water channels, the polarization of the antenna can be switched. A prototype is fabricated and tested. Measured results show that the proposed antenna has an overall bandwidth (|<inline-formula><tex-math notation="LaTeX">$S$</tex-math></inline-formula><sub>11</sub> | < −10 dB, AR < 3 dB) of 40% for the two polarization states.
Geography of the family [Die Geographie der Familie]

We study the residential choice of siblings who are altruistic towards their parents. The first-born child’s location choice influences the behavior of the second-born child and can shift some of the burden of providing care for the parents from one child to the other. These strategic considerations lead to an equilibrium location pattern with firstborn children locating further away from their parents than second-born children. We also analyze the location choices empirically using German data. These data confirm our theoretical predictions.
RhoA GTPase Is Dispensable for Actomyosin Regulation but Is Essential for Mitosis in Primary Mouse Embryonic Fibroblasts*

RhoA, the founding member of mammalian Rho GTPase family, is thought to be essential for actomyosin regulation. To date, the physiologic function of RhoA in mammalian cell regulation has yet to be determined genetically. Here we have created RhoA conditional knock-out mice. Mouse embryonic fibroblasts deleted of RhoA showed no significant change in actin stress fiber or focal adhesion complex formation in response to serum or LPA, nor any detectable change in Rho-kinase signaling activity. Concomitant knock-out or knockdown of RhoB and RhoC in the RhoA−/− cells resulted in a loss of actin stress fiber and focal adhesion similar to that of C3 toxin treatment. Proliferation of RhoA−/− cells was impaired due to a complete cell cycle block during mitosis, an effect that is associated with defective cytokinesis and chromosome segregation and can be readily rescued by exogenous expression of RhoA. Furthermore, RhoA deletion did not affect the transcriptional activity of Stat3, NFκB, or serum response factor, nor the expression of the cell division kinase inhibitor p21Cip1 or p27Kip1. These genetic results demonstrate that in primary mouse embryonic fibroblasts, RhoA is uniquely required for cell mitosis but is redundant with related RhoB and RhoC GTPases in actomyosin regulation.
A place in the world? : places, cultures and globalization

PREFACE INTRODCUTION 1. Migrations, globalization and place 2. The conceptualization of place 3. Place and identity: a sense of place 4. The contestation of place 5. New cultures for old 6. Places and cultures in an uneven world ACKNOWLEDGEMENTS INDEX
Th1-type responses mediate spontaneous ileitis in a novel murine model of Crohn's disease.

We describe here the immunologic characterization of a new mouse strain, SAMP1/Yit, which spontaneously develops a chronic intestinal inflammation localized to the terminal ileum. The resulting ileitis bears a remarkable resemblance to human Crohn's disease. This strain of mice develops discontinuous, transmural inflammatory lesions in the terminal ileum with 100% penetrance by 30 weeks of age. The intestinal inflammation is characterized by massive infiltration of activated CD4+ and CD8alpha(+)TCRalphabeta(+) T cells into the lamina propria and is accompanied by a dramatic decrease in the intraepithelial lymphocyte CD8alpha(+)TCRgammadelta(+)/CD8alpha(+)TCRalphabeta(+) ratio. The results of adoptive transfer experiments strongly suggest that CD4+ T cells that produce a Th1-like profile of cytokines, e.g., IFN-gamma and TNF, mediate the intestinal inflammation found in SAMP1/Yit mice. In addition, pretreatment of adoptive transfer recipients with a neutralizing anti-TNF antibody prevents the development of intestinal inflammation, suggesting that TNF plays an important role in the pathogenesis of intestinal inflammation in this model. To our knowledge, these data provide the first direct evidence that Th1-producing T cells mediate intestinal inflammation in a spontaneous animal model of human Crohn's disease.
Classification Using Belief Functions: Relationship Between Case-Based and Model-Based Approaches

The transferable belief model (TBM) is a model to represent quantified uncertainties based on belief functions, unrelated to any underlying probability model. In this framework, two main approaches to pattern classification have been developed: the TBM model-based classifier, relying on the general Bayesian theorem (GBT), and the TBM case-based classifier, built on the concept of similarity of a pattern to be classified with training patterns. Until now, these two methods seemed unrelated, and their connection with standard classification methods was unclear. This paper shows that both methods actually proceed from the same underlying principle, i.e., the GBT, and that they essentially differ by the nature of the assumed available information. This paper also shows that both methods collapse to a kernel rule in the case of precise and categorical learning data and for certain initial assumptions, and a simple relationship between basic belief assignments produced by the two methods is exhibited in a special case. These results shed new light on the issues of classification and supervised learning in the TBM. They also suggest new research directions and may help users in selecting the most appropriate method for each particular application, depending on the nature of the information at hand
Calibration of the non-linear system response of a prototype set-up of the DSSC detector for the European XFEL

The DSSC (DEPFET Sensor with Signal Compression) is a new instrument with non-linear compression of the input signal in the sensor and with parallel signal processing (filtering, linear amplification, and digitization) for all pixels. The DSSC will serve as 2d imaging detector at the European X-ray Free Electron Laser (XFEL.EU) currently under construction in Hamburg, Germany. The DSSC design goal is to achieve at the same time single photon detection and high dynamic range of about 104 photons, both for photon energies down to 0.5 keY and read-out speeds up to 4.5 MHz. Realization of this goal requires an accurate calibration of the non-linear system response (NLSR) over the full dynamic range of the detector. We present our strategy for calibrating the NLSR, for each of the 1024 × 1024 DSSC pixels, in the laboratory. The feasibility of our calibration strategy is demonstrated experimentally by calibrating the NLSR of a DSSC prototype set-up consisting of a prototype DEPFET sensor with non-linear signal compression connected to a prototype read-out ASIC.
Rapid accumulation of nucleostemin in nucleolus during newt regeneration

In newt regeneration, differentiated cells can revert to stem cell–like cells in which the proliferative ability and multipotentiality are restored after dedifferentiation. However, the molecular events that occur during the dedifferentiation still remain obscure. Nucleostemin has been identified in mammals as a nucleolar protein specific to stem cells and cancer cells. In this study, a newt nucleostemin homologue was cloned and its regulation was analyzed. During lens regeneration, the expression of nucleostemin was activated and nucleostemin rapidly accumulated in the nucleoli of dedifferentiating pigmented epithelial cells 2 days before cell cycle reentry. During limb regeneration, nucleostemin also accumulated in the nucleoli of degenerating multinucleate muscle fibers before blastema formation. These findings suggest that nucleostemin plays a role in the dedifferentiation of newt cells and can provide crucial clues for addressing the molecular events at early steps of cellular dedifferentiation in newts. Developmental Dynamics 236:941–950, 2007. © 2006 Wiley‐Liss, Inc.
Struggling to organize across national borders: The case of global resource management in professional service firms

A growing body of research has challenged the commonly accepted view that multinationals have evolved into globally integrated networks, demonstrating instead that such organizations are sites of conflict between competing rationalities emerging from distinctive national institutional contexts. However, this research has neglected professional service firms (PSFs) in spite of them often being held as exemplars of the integrated network model. This article redresses this imbalance by focusing, in particular, on how PSFs seek to coordinate the horizontal flow of their human resources as a mechanism of inter-unit knowledge sharing. Drawing upon interviews in four PSFs, I show that these organizations have developed resource management systems that cannot simply be reduced to national institutional contexts. However, I also demonstrate that the process of resource management is subject to inter-unit conflicts that undermine its raison d'être. I argue that these tensions are symptomatic of both the Anglo-American model of multinational management and cross-national differences in market conditions.
Work characteristics, challenge appraisal, creativity, and proactive behavior: A multi‐level study

Work characteristics such as time pressure and job control can be experienced as a challenge that is positively associated with performance-related behaviors. Using experience-sampling data from 149 employees, we examined the relationships between these work characteristics and creativity and proactive behavior on a daily level. Results from multilevel analyses indicate that time pressure and job control are perceived as challenging, and that challenge appraisal in turn is related to daily creativity and proactive behavior. Furthermore, cross-level mediation analyses revealed that daily work characteristics act as the mechanism underlying the relationships between chronic work characteristics and challenge appraisal. This study supports the view of time pressure as a challenge-related stressor that leads to favorable outcomes. Copyright © 2009 John Wiley & Sons, Ltd.
Use of a Novel Anticoagulation Strategy During ECMO in a Pediatric Population: Single-Center Experience.

We describe a novel anticoagulation strategy with continuous intravenous antithrombin infusion and intermittent heparin infusion in pediatric population during extracorporeal membrane oxygenation (ECMO). From November 2004 through February 2006, 11 patients required ECMO for postcardiotomy cardiorespiratory failure. The mean duration of support time was 112 hours (range 68–192 hours). Since April 2005, we modified our anticoagulation protocol in the last six patients. Continuous antithrombin infusion was started immediately after surgery based on the lab result. The antithrombin level was maintained >100% using the following formula: 100 (target value) – (Antithrombin value on lab test) × weight in 4 hours. Antithrombin value was checked at 4-hour intervals. Heparin infusion was started when the antithrombin value was > 100% and remained stable for more than 12 hours and the amount of bleeding was < 2 ml/kg for more than 3 consecutive hours; then heparin infusion was started at 2 UI/kg/h via the oxygenator (target ACT was not < 150 seconds). Three patients in the first group died. Eight patients were weaned and discharged; the third, fourth, and fifth required surgical revision for bleeding. One experienced minor neurologic sequelae. Neither surgical revision nor thromboembolic complications occurred in the new anticoagulation group. A novel anticoagulation strategy utilizing continuous intravenous antithrombin and intermittent heparin infusion reduced significantly surgical revision for bleeding in the first 48 hours. This has translated into excellent overall outcomes.
Imagining mobility: the prospective cognition question in migration research

ABSTRACT Most migration research is focused on migrant experiences after mobility and settlement. We argue that empirical researchers would benefit from studying how cognitive migration, the narrative imagining of oneself inhabiting a foreign destination prior to the actual physical move, influences migration behaviour. This article notes a gap in our current understanding of the process by which individuals decide to cross international borders and offers an agenda for remedying this. The interdisciplinarity of migration research has not fully extended to social psychology or cognitive social sciences, where a dynamic research agenda has examined human decision-making processes, including prospection and the connections between culture and cognition. The study of socio-cognitive processes in migration decision-making has been largely overlooked because of the after-the-fact nature of data collection and analysis rather than an aversion to these approaches per se. We highlight a number of strategic findings from this diverse field, provide examples of migration scholarship that has benefited from these insights, and raise questions about the sides of migration process that have received insufficient attention. A more nuanced understanding of prospective thinking—imagining potential futures—can shed light on the classic puzzle of why some people move while others in comparable situations do not.
Reasoning about the correctness of software development process

Summary form only given. During the object-oriented software development process, a variety of models of the system is built. All these models are not independent, but they are related to each other. Elements in one model have trace dependencies to other models; they are semantically overlapping and together represent the system as a whole. It is necessary to have a precise definition of the syntax and semantics of the different models and their relationships, since the lack of accuracy in their definition can lead to wrong model interpretations and inconsistency between models. The paper considers the notion of formal contract regulating the activities in the software development process. It defines the concept of software process contract (sp-contract).
The effects of attentional focus strategies on acqu isition, retention and transfer of dart throwing task in children and adol escences

Adults benefit more from external focus than intern al focus when learning a new motor skill. Because l earners from different age groups use different learning strateg ies, the purpose of this study was to investigate w hether the effect of varies attention focus between children and adul ts. Twenty children and eighteen adults were random ly assigned to internal and external focus of attention practic e groups. Dart throwing done toward a static target , participants performed 50 acquisition trials, 20 retention trial s, and 20 transfer trials. The results indicate tha t focus of attention varied between children and adults in accuracy and variability of the acquisition, retention, and transfer phase and in accuracy of the transfer phase (P<0.05). This st udy suggests the need to develop appropriate select ion criteria of participants according to their age. Physical thera pists working with children should perhaps direct t he client's attention internally; however, further study is nee ded. Keyword: internal focus, external focus, motor skill learni ng
Analytic results for virtual QCD corrections to Higgs production and decay

We consider the production of a Higgs boson via gluon-fusion and its decay into two photons. We compute the NLO virtual QCD corrections to these processes in a general framework in which the coupling of the Higgs boson to the external particles is mediated by a colored fermion and a colored scalar. We present compact analytic results for these two-loop corrections that are expressed in terms of Harmonic Polylogarithms. The expansion of these corrections in the low and high Higgs mass regimes, as well as the expression of the new Master Integrals which appear in the reduction of the two-loop amplitudes, are also provided. For the fermionic contribution, we provide an independent check of the results already present in the literature concerning the Higgs boson and the production and decay of a pseudoscalar particle.
Software testing in small IT companies: a (not only) South African problem

Small software companies make for the majority of software companies around the world, but their software development processes are often not as clearly dened and structured as in their larger counterparts. Especially the test process is often the most neglected part of the software process. This contribution analyses the software testing process in a small South African IT company, here called X, to determine the problems that currently cause it to deliver software fraught with too many defects. The ndings of a survey conducted with all software developers in company X are discussed, and several typical problems are identied. Solutions to those (or similar) problems often already exist, but a major part of the problem addressed in this contribution is the unawareness, or unfamiliarity, of many small-industrial software developers and IT managers as far as the scientic literature on software science and engineering, and especially in our case: software testing, is concerned.We also discuss two prevalent test process improvement models that can be used to reason about the possibilities of process improvement. This contribution is an extended and revised summary of a longer project report [56] which can be obtained from the corresponding author of this article upon request.
Usefulness of enzyme‐linked immunosorbent assay using recombinant desmogleins 1 and 3 for serodiagnosis of pemphigus

Pemphigus is an autoimmune blistering disease with two major subtypes, pemphigus vulgaris (PV) and pemphigus foliaceus (PF). Patients with pemphigus have circulating antidesmoglein (Dsg)1 and/or anti‐Dsg3 IgG autoantibodies. We have previously developed enzyme‐linked immunosorbent assays (ELISAs) using recombinant Dsg1 and Dsg3 expressed by baculovirus as a diagnostic tool for pemphigus. The purpose of this study was to evaluate the practical application of these ELISAs for clinical use with a large number of serum samples. We used 81 PV sera, 48 PF sera, 114 bullous pemphigoid (BP) sera, 124 collagen disease sera, nine sera of other non‐pemphigus bullous diseases and 179 normal control sera. A cut‐off value was determined by receiver‐operating‐characteristic plots. Forty‐seven of 48 PF sera (97.9%) were positive in the Dsg1 ELISA and 79 of 81 PV sera (97.5%) were positive in the Dsg3 ELISA, while only two (1.1%) and four (2.2%) of 179 normal sera were positive in Dsg1 and Dsg3 ELISAs, respectively. However, some disease control sera of BP and collagen diseases exceeded the cut‐off value. Introduction of a grey zone helped to decrease the number of these false‐positive sera. Furthermore, in three patients studied, the respective Dsg1 and Dsg3 ELISA scores showed parallel fluctuation with the disease activity along the time course. We conclude that Dsg1 and Dsg3 ELISAs provide a simple, sensitive and highly specific assay for the diagnosis of patients with PV and PF and that these ELISAs may be a valuable tool to monitor the disease activity. We also propose diagnostic criteria for pemphigus based on ELISA reactivity: if a serum is positive against Dsg3 it indicates a diagnosis of PV, regardless of reactivity against Dsg1; if a serum is negative for Dsg3 and positive for Dsg1, it indicates a diagnosis of PF.
Reanalysis of “Raptorex kriegsteini”: A Juvenile Tyrannosaurid Dinosaur from Mongolia

The carnivorous Tyrannosauridae are among the most iconic dinosaurs: typified by large body size, tiny forelimbs, and massive robust skulls with laterally thickened teeth. The recently described small-bodied tyrannosaurid Raptorex kreigsteini is exceptional as its discovery proposes that many of the distinctive anatomical traits of derived tyrannosaurids were acquired in the Early Cretaceous, before the evolution of large body size. This inference depends on two core interpretations: that the holotype (LH PV18) derives from the Lower Cretaceous of China, and that despite its small size, it is a subadult or young adult. Here we show that the published data is equivocal regarding stratigraphic position and that ontogenetic reanalysis shows there is no reason to conclude that LH PV18 has reached this level of maturity. The probable juvenile status of LH PV18 makes its use as a holotype unreliable, since diagnostic features of Raptorex may be symptomatic of its immature status, rather than its actual phylogenetic position. These findings are consistent with the original sale description of LH PV18 as a juvenile Tarbosaurus from the Upper Cretaceous of Mongolia. Consequently, we suggest that there is currently no evidence to support the conclusion that tyrannosaurid skeletal design first evolved in the Early Cretaceous at small body size.
Y-chromosomal evidence of a pastoralist migration through Tanzania to southern Africa

Although geneticists have extensively debated the mode by which agriculture diffused from the Near East to Europe, they have not directly examined similar agropastoral diffusions in Africa. It is unclear, for example, whether early instances of sheep, cows, pottery, and other traits of the pastoralist package were transmitted to southern Africa by demic or cultural diffusion. Here, we report a newly discovered Y-chromosome-specific polymorphism that defines haplogroup E3b1f-M293. This polymorphism reveals the monophyletic relationship of the majority of haplotypes of a previously paraphyletic clade, E3b1-M35*, that is widespread in Africa and southern Europe. To elucidate the history of the E3b1f haplogroup, we analyzed this haplogroup in 13 populations from southern and eastern Africa. The geographic distribution of the E3b1f haplogroup, in association with the microsatellite diversity estimates for populations, is consistent with an expansion through Tanzania to southern-central Africa. The data suggest this dispersal was independent of the migration of Bantu-speaking peoples along a similar route. Instead, the phylogeography and microsatellite diversity of the E3b1f lineage correlate with the arrival of the pastoralist economy in southern Africa. Our Y-chromosomal evidence supports a demic diffusion model of pastoralism from eastern to southern Africa ≈2,000 years ago.
PENGARUH KEPEMIMPINAN, MOTIVASI BERPRESTASI DAN KEPUASAN KERJA TERHADAP KINERJA PEGAWAI BADAN PENANGGULANGAN BENCANA DAERAH KABUPATEN TANAH DATAR

The aim of this study was to analyze (1) the effect of leadership on achievement motivation, (2) the effect of leadership on job satisfaction, (3) the influence of achievement motivation on job satisfaction, (4) the effect of leadership on performance, (5) the effect of job satisfaction on performance and (6) the effect on the performance of achievement motivation. The population in this study were all employees BPBDs Tanah Datar (61 employees), based on the formula Slovin, 53 employees selected as respondents. Research techniques is proportional stratified random cluster sampling. Path analysis is used to answer this research, suggests that; leadership significant and positive impact on achievement motivation; influential leadership significant and positive impact on job satisfaction; achievement motivation of significant and positive influence on performance; leadership significant and positive influence on performance; significant effect on job satisfaction and positf on performance; achievement motivation of significant and positive impact on performance. Keywords : Leadership, achievement motivation, satisfaction, performance