Miracle-dz/UniFAR-FTUs huggingface dataset:
Gerir identidades e culturas em organizações temporárias: o papel da comunicação

Res_por:A presente investigacao teve por objetivo analisar os fenomenos de cultura, identidade e comunicacao numa organizacao temporaria, atraves do estudo de um Consorcio entre uma universidade publica portuguesa e uma empresa multinacional com unidades de producao em Portugal. Procurou-se: (1) analisar a possibilidade da existencia de culturas e identidades proprias em organizacoes temporarias; (2) compreender o grau de influencia das organizacoes-mae na criacao da cultura e da identidade da estrutura temporaria; (3) avaliar a influencia desses processos na criacao de sentimentos de pertenca dos colaboradores a organizacao temporaria; e (4) discutir o papel da comunicacao na construcao da cultura e da identidade em organizacoes temporarias. O estudo foi realizado seguindo a metodologia de estudo de caso, com recurso a observacao direta e as entrevistas semi-estruturadas como mecanismos de recolha de dados. A observacao foi realizada a longo de um ano nos diversos espacos que compoem o Consorcio, e incluiu circunstâncias de trabalho e eventos publicos. As entrevistas foram aplicadas a 17 colaboradores, sendo que nove trabalhavam em regime de exclusividade para a organizacao temporaria e os restantes oito dividiam o seu tempo de trabalho entre o Consorcio e uma das duas instituicoes permanentes. Os dados foram analisados com apoio do programa de software NVivo®. Os resultados indicam a dificuldade de desenvolver culturas e identidades proprias em organizacoes temporarias, pela complexidade de criar sentimentos de pertenca entre colaboradores em ambientes de trabalho provisorios e multi-referenciais. Neste contexto, destaca-se o papel da comunicacao como a ‘cola’ que deve unir referencias culturais, tracos identitarios e grupos de tarefa. Tudo isto num universo organizacional onde as entidades temporarias parecem ter chegado para ficar, pelo seu potencial de adequacao as necessidades evolutivas das sociedades e dos mercados.
Measuring the best linear approximation of Wiener systems using multilevel sequences

The problem of measuring the best linear approximation of a nonlinear system by means of multilevel excitation sequences is analyzed. A comparison between different types of sequences applied at the input of Wiener systems is provided by numerical simulations. The performance of the sequences is compared with a white Gaussian noise signal for reference purposes. It is shown that the randomized constrained approach for designing ternary sequences has a low sensitivity to even and odd order nonlinearity, resulting in a response close to the actual response of the underlying linear system.
Occurrence of deletion of a COL2A1 allele as the mutation in Stickler syndrome shows that a collagen type II dosage effect underlies this syndrome

We describe a novel type of mutation in the COL2A1 gene in a family with Stickler syndrome, namely a deletion of an entire COL2A1 allele. Until now, almost all COL2A1 mutations found in this syndrome are nucleotide substitutions, small deletions, or insertions, resulting in premature translation termination. Since the phenotype in this family is not different from cases with a truncated α‐chain, our finding supports the suggestion that a dosage effect is underlying Stickler syndrome. Moreover, in mutation screening protocols for COL2A1 one should be aware of the possibility of large deletions, which are not detected by generally used PCR‐based methods. © 2002 Wiley‐Liss, Inc.
Sugar-responsive gene expression, invertase activity, and senescence in aborting maize ovaries at low water potentials.

BACKGROUND AND AIMS Ovary abortion can occur in maize (Zea mays) if water deficits lower the water potential (psiw) sufficiently to inhibit photosynthesis around the time of pollination. The abortion decreases kernel number. The present work explored the activity of ovary acid invertases and their genes, together with other genes for sucrose-processing enzymes, when this kind of abortion occurred. Cytological evidence suggested that senescence may have been initiated after 2 or 3 d of low psiw, and the expression of some likely senescence genes was also determined. METHODS Ovary abortion was assessed at kernel maturity. Acid invertase activities were localized in vivo and in situ. Time courses for mRNA abundance were measured with real time PCR. Sucrose was fed to the stems to vary the sugar flux. KEY RESULTS Many kernels developed in controls but most aborted when psiw became low. Ovary invertase was active in controls but severely inhibited at low psiw for cell wall-bound forms in vivo and soluble forms in situ. All ovary genes for sucrose processing enzymes were rapidly down-regulated at low psiw except for a gene for invertase inhibitor peptide that appeared to be constitutively expressed. Some ovary genes for senescence were subsequently up-regulated (RIP2 and PLD1). In some genes, these regulatory changes were reversed by feeding sucrose to the stems. Abortion was partially prevented by feeding sucrose. CONCLUSIONS A general response to low psiw in maize ovaries was an early down-regulation of genes for sucrose processing enzymes followed by up-regulation of some genes involved in senescence. Because some of these genes were sucrose responsive, the partial prevention of abortion with sucrose feeding may have been caused in part by the differential sugar-responsiveness of these genes. The late up-regulation of senescence genes may have caused the irreversibility of abortion.
Wavelet Based OE Model Identification with Random Missing Data

Abstract Based on wavelet representation theory, this paper proposes a novel identification algorithm with random missing data under the condition that the identified dynamic process can be described as an output error (OE) model structure. This new algorithm mainly consists of two stages: one is the wavelet reconstruction, the other the prediction for missing data using the identified model. For the sake of its application, selection of the final iteration number and the adopted wavelet category is also considered. Finally, numerical simulations are given to verify the satisfactory effectiveness of the proposed algorithm.
Extracellular matrix metalloproteinase inducer/CD147 promotes myofibroblast differentiation by inducing α‐smooth muscle actin expression and collagen gel contraction: implications in tissue remodeling

Extracellular matrix metalloproteinase inducer (EMMPRIN) is a cell surface glycoprotein enriched on tumor cells and normal epithelia. It is mainly known for its ability to induce matrix metalloproteinase production in fibroblasts following epithelial‐stromal interaction. We sought to examine whether EMMPRIN has a broader role promoting fibroblast‐to‐myofibroblast differentiation. Because α‐smooth muscle actin (αSMA) is considered a marker of this differentiation process, we analyzed the effect of EMMPRIN on its expression in corneal and skin fibroblasts by Western blots, immunocytochemistry, and a functional assay of collagen lattice contraction. Increasing EMMPRIN expression by cDNA transfection or by treatment with exogenously added recombinant EMMPRIN resulted in an up‐regulation of αSMA expression. EMMPRIN also increased the contractile properties of the treated fibroblasts as demonstrated by the immunohistochemical appearance of stress fibers and by the accelerated contraction of fibroblast‐embedded collagen lattices. Blocking EMMPRIN expression by small interfering RNA inhibited αSMA and collagen gel contraction induced not only by EMMPRIN but also by transforming growth factor‐β, a major mediator of myofibroblast differentiation that also regulated EMMPRIN expression. These findings, combined with the fact that EMMPRIN and αSMA colocalized to the same cells in the stroma of pathological corneas, expand on the mechanism by which EMMPRIN remodels extracellular matrix during wound healing and cancer. Huet, E. , Vallee, B. , Szul, D. , Ver‐recchia, F. , Mourah, S. , Jester, J. V. , Hoang‐Xuan, T. , Menashi, S. , Gabison, E. E. Extracellular matrix metal‐loproteinase inducer/CD147 promotes myofibroblast differentiation by inducing α‐smooth muscle actin expression and collagen gel contraction: implications in tissue remodeling. FASEB J. 22, 1144–1154 (2008)
Polarimetric calibration requirements for a classification scheme based on scattering type alpha

Polarimetric calibration is aimed at intercalibrating the polarization channels of the radar system. A better characterization of the target and of the backscattering mechanisms can be obtained by polarimetric calibration. The study described in this paper is an attempt at deriving the requirements on the polarimetric calibration for a commonly used classification method based on the scattering type alpha. A model representing the effects of the residual distortion of the polarimetric data after calibration is present. This distortion model is then applied to calculate alpha angle, through which the polarimetric calibration requirements for identifying seven scatterers can be obtained. We will show that, the phase of parameter f, representing the phase difference of the mismatch between the like-polarized channels, affects the classification results most significantly.
School failure and deafness after "silent" congenital cytomegalovirus infection.

We found IgM antibody directed against cytomegalovirus in the umbilical-cord blood of 53 of 8644 newborns. Forty-four of the 53 had psychometric and pediatric evaluations at 3.5 to 7.0 years of age. The group's mean IQ was 102.5+/-22.4 (+/-S.D.), whereas in matched controls it was 111.7 (PC 0.025). Bilateral hearing loss was present in five of 40 children with antibody against cytomegalovirus and in one of 44 matched controls without antibody (P less than 0.1). Three of the antibody-positive children, however, had profound deafness, an abnormality that occurs once in approximately 1000 children. The predicted school failure rate, based on IQ, behavioral, neurologic and auditory test data, was 2.7 times that of matched socioeconomic controls and eight times that of randomly selected controls. We conclude that clinically inapparent congenital cytomegalovirus infection can adversely affect central-nervous-system development.
A Model-Based Cascaded Control Concept for the Bionic Motion Robot

The applications, modeling and control of continuum manipulators have been strongly developing over the past years. In this contribution, we present a model-based control concept for the Bionic Motion Robot – a quasi-continuum robot with six actuator degrees of freedom driven by compressed air. The model is based on a constant curvature approach for the mechanics also being used for the feed-back control, and a dynamic representation of the bellows pressures. The control law itself consists of a cascaded concept, where an underlying pressure control compensates for the compressibility of the driving fluid. With measurements, the working principle of the proposed methods are illustrated and the effectiveness of the control is demonstrated.
The effect of early deprivation on the social behavior of adolescent chimpanzees.

Chimpanzees reared during early life in environments with social and perceptual restrictions are strikingly different from animals reared by their mothers in a natural habitat. As adolescents they avoid social contact and display little species-typical behavior; they play and copulate infrequently and do not groom. The authors found these aberrations to be very resistant to modification by a variety of maneuvers, including contact with normal social partners, drugs, and experimental manipulations, and they discuss the implications of their lack of "therapeutic" success.
Evaluation of a pressure walkway system for measurement of vertical limb forces in clinically normal dogs.

OBJECTIVE To compare ground reaction forces (GRFs) measured by use of a pressure-sensitive walk-way (PSW) and a force plate (FP) and evaluate weekly variation in the GRFs and static vertical forces in dogs. ANIMALS 34 clinically normal dogs and 5 research dogs with lameness. PROCEDURE GRF data were collected from 5 lame and 14 clinically normal dogs by use of an FP and a PSW. Peak vertical force (PVF), vertical impulse (VI), and velocity measurements (determined by use of photocells and PSW data) were compared between groups. Peak vertical force, VI, stride length, ground phase time (ie, contact time), and static body weight distribution data were collected on 2 occasions, 1 week apart, in 20 different clinically normal dogs by use of a PSW; week-to-week variation in values was evaluated. RESULTS Measurements of velocity derived by use of the photocells were not different from those derived by use of the PSW. For any 1 limb, values derived by use of the PSW were significantly lower than values derived with the FP. For values obtained by use of either technique, there were no differences between left and right limbs except for values of PVF measured via PSW in forelimbs. Values of PVF, VI, contact time, stride length, and static weight distribution generated by the PSW did not vary from week to week. CONCLUSIONS AND CLINICAL RELEVANCE Values for GRFs varied between the FP and PSW. However, data derived by use of PSW were consistent and could be used to evaluate kinetic variables over time in the same dog.
Networked Intelligent Munitions and Sensor System

Electroconductive composite metal powders comprising flat non-noble metal powders, each covered with a noble metal in an amount of 2 to 30% by weight in average based on the weight of the non-noble metal powders, on 50% or more in average of the whole surface area of the non-noble metal powders, interposing a layer of a mixture of the non-noble metal and noble metal between each non-noble metal powder and a noble metal covering layer, are suitable for providing an electroconductive paste after mixing with a binder, said paste showing excellent electroconductivity and prevention of migration.
Assisted Modelling Over Social Networks with SOCIO

Social networks are intensively used nowadays for both leisure and work. They have become a natural communication mechanism which helps users in coordinating and collaborating in their daily life activities. To profit from their pervasive use, we propose SOCIO: a modelling assistant that seamlessly integrates across several social networks, like Telegram or Twitter. SOCIO is a modelling bot that can interpret natural language sentences and create metamodels out of them. It provides traceability of design decisions and statistics of user contributions. A video showcasing the tool is available at https://saraperezsoler.github. io/ModellingBot/.
The Europe Code Week (CodeEU) initiative shaping the skills of future engineers

The growth of employment opportunities in the information technology sector and the shortage of well-trained professionals in this field are a recurring theme in recent years in both Europe and North America. In this sense, research studies that analyse the causes of the reduction of students who are interested in computer science mainly point to young people being unaware of the type of tasks computer scientists perform. Therefore, in order to try to reverse this trend many types of initiatives have been organized seeking to bring the world of computing to children and adolescents.
Evidence that Fungal MEP Proteins Mediate Diffusion of the Uncharged Species NH3 across the Cytoplasmic Membrane

ABSTRACT Methylammonium and ammonium (MEP) permeases of Saccharomyces cerevisiae belong to a ubiquitous family of cytoplasmic membrane proteins that transport only ammonium (NH4+ + NH3). Transport and accumulation of the ammonium analog [14C]methylammonium, a weak base, led to the proposal that members of this family were capable of energy-dependent concentration of the ammonium ion, NH4 +. In bacteria, however, ATP-dependent conversion of methylammonium to γ-N-methylglutamine by glutamine synthetase precludes its use in assessing concentrative transport across the cytoplasmic membrane. We have confirmed that methylammonium is not metabolized in the yeast S. cerevisiae and have shown that it is little metabolized in the filamentous fungus Neurospora crassa. However, its accumulation depends on the energy-dependent acidification of vacuoles. A Δvph1 mutant of S. cerevisiae and a Δvma1 mutant, which lack vacuolar H+-ATPase activity, had large (fivefold or greater) defects in the accumulation of methylammonium, with little accompanying defect in the initial rate of transport. A vma-1 mutant ofN. crassa largely metabolized methylammonium to methylglutamine. Thus, in fungi as in bacteria, subsequent energy-dependent utilization of methylammonium precludes its use in assessing active transport across the cytoplasmic membrane. The requirement for a proton gradient to sequester the charged species CH3NH3 + in acidic vacuoles provides evidence that the substrate for MEP proteins is the uncharged species CH3NH2. By inference, their natural substrate is NH3, a gas. We postulate that MEP proteins facilitate diffusion of NH3 across the cytoplasmic membrane and speculate that human Rhesus proteins, which lie in the same domain family as MEP proteins, facilitate diffusion of CO2.
Procedural Modeling of a Building from a Single Image

Creating a virtual city is demanded for computer games, movies, and urban planning, but it takes a lot of time to create numerous 3D building models. Procedural modeling has become popular in recent years to overcome this issue, but creating a grammar to get a desired output is difficult and time consuming even for expert users. In this paper, we present an interactive tool that allows users to automatically generate such a grammar from a single image of a building. The user selects a photograph and highlights the silhouette of the target building as input to our method. Our pipeline automatically generates the building components, from large‐scale building mass to fine‐scale windows and doors geometry. Each stage of our pipeline combines convolutional neural networks (CNNs) and optimization to select and parameterize procedural grammars that reproduce the building elements of the picture. In the first stage, our method jointly estimates camera parameters and building mass shape. Once known, the building mass enables the rectification of the façades, which are given as input to the second stage that recovers the façade layout. This layout allows us to extract individual windows and doors that are subsequently fed to the last stage of the pipeline that selects procedural grammars for windows and doors. Finally, the grammars are combined to generate a complete procedural building as output. We devise a common methodology to make each stage of this pipeline tractable. This methodology consists in simplifying the input image to match the visual appearance of synthetic training data, and in using optimization to refine the parameters estimated by CNNs. We used our method to generate a variety of procedural models of buildings from existing photographs.
Routine Psychological Screening in Youth With Type 1 Diabetes and Their Parents

In the post-DCCT (Diabetes Control and Complications Trial) (1) and -EDIC (Epidemiology of Diabetes Interventions and Complications) (2) eras, considerable effort has been expended on early detection and treatment of diabetes-related microvascular complications in youth using screening programs. Numerous consensus statements have been generated relating to the timing, frequency, and content of such programs (3–7). Although each recommends a slightly different approach to screening, the same basic principles apply—achieve and maintain excellent glycemic control; reduce known and modifiable risk factors, such as smoking, obesity, hyperlipidemia, and hypertension; and screen for nephropathy and retinopathy on a regular basis following the inset of puberty. To be considered successful, any screening program must satisfy several criteria (8): Certainly, given what we know about microvascular complications and their progression and treatment, universal diabetes complication screening programs satisfy most of these prerequisites. Ten years after the DCCT, average levels of metabolic control have improved in most clinical reports of children and adolescents with type 1 diabetes, although population-based data remain scanty and perhaps less optimistic (9–14). Contemporary clinic-based reports of microvascular complication rates in adolescence have shown a concomitant improvement (15–18). On the other hand, reports relating to health-related quality of life (HRQOL) and psychological outcomes have been distressingly suboptimal (19–24). Although not all studies report significant associations (25–27), there are a number of reports showing that psychosocial dysfunction and family conflict are close correlates of poor health …
Are Cereals Globally in Trouble ?

We combine fine-scale weather data with spatially-detailed data on crop distribution and crop calendar to estimate long-term response functions of crop productivity to temperature and precipitation across the world. We characterize the pattern of temperature and precipitation impacts on rice, maize, wheat, and sorghum yields and on total cereal production around 2050 distinguishing between temperate and tropical regions, irrigated and rain-fed areas. Our results suggest that weather shocks can have a persistent effects that take between five to twenty years to disappear. If we consider the gap between the immediate effect of weather shocks and the lagged response as an indicator of adaptation potential, results point at low adaptation potentials in tropical regions, with the exception of irrigated maize. Higher adaptation potentials are estimated in temperate regions, but irrigated crops can be significanlty damaged by high precipitation levels. The differentiated results for irrigated and rain-fed areas suggest that irrigation can be effective at dealing with higher temperature in tropical areas. It appears less effective at dealing with low or high precipitation levels. When considering only the climate change impact on yields and neglecting adjustments along the extensive margin, the total amount of calories produced by the top producers around 2050 could decline. Irrigation could partly mitigate these losses, but the efficacy of this adaptation strategy will depend on the climate itself. JEL Codes: N5, O13, Q1, Q54
Effects of tetrodotoxin on the neuromuscular junction.

1. Effects of tetrodotoxin on the neuromuscular junction have been studiedon the nerve sartorius preparation of frog.2. Tetrodotoxin has a potent narcotic action on nerve and muscle, withoutdepolarizing them. But, it does not suppress the sensitivity of the end-plateto ACh even at much higher concentration than needed for the narcosis ofnerve and muscle. This point is rather different from many local anesthetics.3. When a dilute solution of tetrodotoxin was applied, the size of curarinee.p.p.(recorded by an intracellular electrode) decreased gradually to about70% of the initial value, then e.p.p. was abolished abruptly due to a conductionblock in the nerve fiber. Sometimes a stepwise change in the size of e.p.p.was observed, which may be explained by a blockage of conduction in thenerve fiber near its terminal arborization (fig. 6). 4. In most cases, a selective neuromuscular block was produced by tetrodo-toxin, but not in some cases. A neuromuscular block seemed to be more easilyproduced in a preparation whose safety factor of transmission was low.