Miracle-dz/UniFAR-FTUs huggingface dataset:
Estresse hídrico sobre caracteres morfofisiológicos e agronômicos em populações de milho

A ocorrencia de periodos de estiagem vem provocando diversas alteracoes nas estrategias agricolas, Grande parte da area de milho cultivados no Brasil e de sequeiro, e as perdas em produtividade anual em decorrencia da seca ficam em torno de 15% do potencial de rendimento total do milho. Deste modo, objetivou-se neste trabalho avaliar o efeito do deficit hidrico sobre caracteres agronomicos e componentes de producao em genotipos de milho (Zea mays L.) e distinguir populacoes com maior tolerância ao estresse hidrico. O estudo foi realizado durante o periodo de safra 2015/2016, na area experimental da Universidade Federal de Goias - Campus Jatoba, situado na cidade de Jatai/Goias, Foram estudados 24 genotipos, sendo 12 populacoes oriundas de polinizacao aberta: CC1; CCV; CRE1; CRE2; CRE3; CRE1S; MPA; MPA1; TG2R; TG2RMV; NAPPMHG; CRV-02, 10 genotipos de geracao F2 de hibridos comerciais: HSG1, HSG2, HSG3, HSG4, HSG5, HSG6, HSG7, HSG8, HSG9 e HSG10 e duas testemunhas: DKB390 (tolerante) e BRS1030 (sensivel). O experimento foi conduzido em blocos casualizados (DBC), em um esquema fatorial 2 x 24, (2 epocas de plantio e 24 genotipos), com 4 repeticoes. Os caracteres avaliados foram: Florescimento Masculino e Feminino (FM e FF); Intervalo entre os florescimentos feminino e masculino em dias (IFMF); Altura de plantas (APL); Altura de espiga (AES); Stay Green (STG); Prolificidade media (PRL); Comprimento de espiga (CES); Diâmetro de espiga (DES); Peso hectolitro (PHCL) e Produtividade de graos (PGR). Os genotipos CCV, CRE3 e TG2R sao potenciais genotipos para uso em programas de melhoramento visando maior tolerância ao estresse hidrico. Estes genotipos nao se diferem entre si para PGR sob deficit hidrico, com produtividade media de 5,76; 6,26; 5,59 e 4,48 t ha-1, respectivamente. O intervalo de florescimento, diâmetro de espiga e stay green sao bons indicativos como caracteres secundarios na selecao de genotipos tolerantes ao estresse hidrico.
[Validation of a PCR technique for the detection of enteroagreggative Escherichia coli causing traveler's diarrhea].

INTRODUCTION Detection of enteroaggregative strains of Escherichia coli (EAEC) by the gold standard technique (cellular adherence) is difficult to implement in routine clinical practice. METHODS The gold standard was compared with a PCR method for this purpose. RESULTS With respect to the cellular adherence technique, PCR performance was as follows: sensitivity 0.93, specificity 1, positive predictive value 1, and negative predictive value 0.91. CONCLUSION The PCR method studied is a viable alternative for routine detection of EAEC strains.
Investigation of the role of service level agreements in Web service quality

Context/Background: Use of Service Level Agreements (SLAs) is crucial to provide the value added services to consumers to achieve their requirements successfully. SLAs also ensure the expected Quality of Service to consumers. Aim: This study investigates how efficient structural representation and management of SLAs can help to ensure the Quality of Service (QoS) in Web services during Web service composition. Method: Existing specifications and structures for SLAs for Web services do not fully formalize and provide support for different automatic and dynamic behavioral aspects needed for QoS calculation. This study addresses the issues on how to formalize and document the structures of SLAs for better service utilization and improved QoS results. The Service Oriented Architecture (SOA) is extended in this study with addition of an SLAAgent, which helps to automate the QoS calculation using Fuzzy Inference Systems, service discovery, service selection, SLA monitoring and management during service composition with the help of structured SLA documents. Results: The proposed framework improves the ways of how to structure, manage and monitor SLAs during Web service composition to achieve the better Quality of Service effectively and efficiently. Conclusions: To deal with different types of computational requirements the automation of SLAs is a challenge during Web service composition. This study shows the significance of the SLAs for better QoS during composition of services in SOA.
Synergistic Control of Protein Kinase Cγ Activity by Ionotropic and Metabotropic Glutamate Receptor Inputs in Hippocampal Neurons

Conventional protein kinase C (PKC) isoforms are abundant neuronal signaling proteins with important roles in regulating synaptic plasticity and other neuronal processes. Here, we investigate the role of ionotropic and metabotropic glutamate receptor (iGluR and mGluR, respectively) activation on the generation of Ca2+ and diacylglycerol (DAG) signals and the subsequent activation of the neuron-specific PKCγ isoform in hippocampal neurons. By combining Ca2+ imaging with total internal reflection microscopy analysis of specific biosensors, we show that elevation of both Ca2+ and DAG is necessary for sustained translocation and activation of EGFP (enhanced green fluorescent protein)-PKCγ. Both DAG production and PKCγ translocation were localized processes, typically observed within discrete microdomains along the dendritic branches. Markedly, intermediate-strength NMDA receptor (NMDAR) activation or moderate electrical stimulation generated Ca2+ but no DAG signals, whereas mGluR activation generated DAG but no Ca2+ signals. Both receptors were needed for PKCγ activation. This suggests that a coincidence detection process exists between iGluRs and mGluRs that relies on a molecular coincidence detection process based on the corequirement of Ca2+ and DAG for PKCγ activation. Nevertheless, the requirement for costimulation with mGluRs could be overcome for maximal NMDAR stimulation through a direct production of DAG via activation of the Ca2+-sensitive PLCδ (phospholipase Cδ) isoform. In a second important exception, mGluRs were sufficient for PKCγ activation in neurons in which Ca2+ stores were loaded by previous electrical activity. Together, the dual activation requirement for PKCγ provides a plausible molecular interpretation for different synergistic contributions of mGluRs to long-term potentiation and other synaptic plasticity processes.
Achievable Data Rates of Broadband Power Line Communications in an Underground Medium-Voltage Network

Power line communications (PLC) or broadband over power lines (BPL) are getting popular for communication in smart grids. Consequently, new BPL standards have been introduced and new norms for the electromagnetic compatibility (EMC) of BPL are approaching. In this paper, the gross data rate is evaluated, which becomes achievable, if the newly approaching European EMC norm prEN 50561 is applied to IEEE 1901 compliant BPL. For comparison also older EMC norms are considered. The achievable data rate depends on the standardized transmission techniques and on the signal-to-noise ratio (SNR). To evaluate the SNR in underground medium-voltage (MV) networks, the channel attenuation and the noise have been measured on a 700 m MV line and compared to previous publications.
Farm management practices associated with macrocyclic lactone resistance on sheep farms in New Zealand

Abstract AIM: To identify farm practices associated with the presence of resistance to a macrocyclic lactone (ML) anthelmintic on sheep farms in New Zealand. METHODS: A cross-sectional study was conducted to test for associations between the presence of resistance to an ML anthelmintic (ivermectin) and management practices on sheep farms in New Zealand. Selection of farms was both random (n=80) and purposive (n=32; being farms with a history of suspected ML resistance). Resistance was inferred from faecal nematode egg count (FEC) reduction (FECR) tests (FECRTs) when there was <95% reduction in FEC 7–10 days after treatment with a half dose of ivermectin (0.1 mg/kg). A logistic regression model was built to identify farm-level factors that were associated with the presence or absence of ML resistance. RESULTS: Of the 112 flock managers that were approached for interview, 103 (92%) returned useable questionnaires. The odds of ML resistance were increased: on farms that had used long-acting ML products in ewes as a pre-lambing treatment for ≥3 of the previous 5 years (odds ratio (OR) = 7.2; 95% confidence interval (CI) = 1.7–30.3); on farms where <70% of the total stock units mid-winter were from sheep (OR=6.5; 95% CI=1.6–25.6); on farms which over the year purchased ≥10% of the number of sheep present mid-winter (OR=7.1; 95% CI=1.5–34.7); and on farms where the average wool diameter of the main flock was <37 (OR=4.1; 95% CI=1.1–14.7) microns. The model provided a good fit to the data (pseudo R2=0.64; Hosmer-Lemeshow statistic = 0.38). CONCLUSIONS: Explanatory factors identified as associated with the presence of ML (ivermectin) resistance on farms included the use of long-acting anthelmintic formulations in ewes pre-lambing, sources of refugia of unselected parasites on the farm, breed of sheep and their requirements for anthelmintic treatments, and the importing of resistant parasites with purchased stock. The study provides support for controls that aim to provide refugia of susceptible worms and that minimise the risk of introduction of resistance through effective quarantine-drenching.
Circulating interferon and the levels of 2-5 A synthetase and p 6 7 K kinase in normal C 3 H / He mice *

Two interferon-mediated enzymes, a 2-5A synthetase and a kinase that phosphorylates a 67000 mol. wt. (p67K) protein were found at variable levels in different organs of mice. Among the different strains of mice included in this study, germ-free mice had the lowest levels of these enzymes. The levels of 2-5A synthetase and p67K kinase were enhanced significantly in all mice following treatment with mouse (c~ + fl) interferon. Here, we show that the presence of 2-5A synthetase and p67K kinase in different organs of normal mice (untreated) was due, at least in part, to a constant production of interferon under different physiological conditions. Accordingly, injection of normal mice with anti-mouse interferon (c~ + fl) globulin led to a significant decrease in the level of 2-5A synthetase and p67K kinase. In conventional mice (C3H/He), the level of both of these enzymes was higher in female than in male animals and was decreased with age or when such animals were reared isolated in a pathogen-free protected unit. The levels of 2-5A synthetase and p67K kinase were also decreased in normal mice following injection with a powerful antibiotic against a very wide spectrum of Grampositive and Gram-negative bacteria. These results suggest that the production of interferon was induced continuously in normal mice. Such induction was mediated by both internal and external agents.
Overcoming contextual limitations on problem-solving transfer.

Five experiments investigated transfer from multiple analogs to a superficially dissimilar target problem. When subjects explicitly compared the analogs and then immediately attempted to solve the target problem in the context of a single experiment, transfer was obtained with significant frequency even without a hint that the analogs and target were related. Prehint transfer was sharply reduced or eliminated when the source analogs and the target were presented in different contexts, even when the transfer test was immediate. However, prehint transfer was enhanced, even after a context shift and a week-long delay between reading the source analogs and solving the problem, when the following conditions were met: The target problem was reworded slightly to emphasize a structural feature that it shared with the analogs; three rather than two source analogs were provided; and detailed, schema-oriented questions were used to help subjects focus on the problem-relevant aspects of the stories. Although spontaneous transfer between small numbers of dissimilar analogs is difficult to obtain, it can be achieved by manipulations that foster abstraction of a problem schema from the training examples.
Characteristics of Responses to Salt Loading and Deprivation in Hypertensive Subjects

The mechanisms by which high salt intake increases vascular resistance in hypertensive humans are not clear. This study examined the possibility that salt loading produces structural changes of the forearm resistance vessels in hypertensive patients. Seventeen patients with essential hypertension were given 7 days of 70 mEq and 345 mEq sodium diet. Patients were arbitrarily divided into two groups based on blood pressure response to salt loading: those whose mean blood pressure increased by more than 10% during high salt diet as compared to those on a low salt diet (salt-responsive patients, n = 8) and those who did not increase by more than 10% (salt-nonresponsive patients, n = 9). To determine whether there were structural vascular changes of the forearm resistance vessels during salt loading, we examined maximal vasodilator capacity of the forearm resistance vessels during low and high salt diets by measuring minimal forearm vascular resistance during peak reactive hyperemia following 10 minutes of arterial occlusion. Salt loading increased forearm vascular resistance (P < 0.01) and decreased maximal vasodilator capacity (P < 0.01) in saltresponsive patients but did not alter them in salt-nonresponsive patients. Forearm vascular responses to ice on the forehead or to intravenous phentolamine (10 mg) were augmented (P < 0.01) during the high salt diet in both groups, but more in salt-responsive patients than in salt-nonresponsive patients (P < 0.01). These results are consistent with the view that, in hypertensive patients who responded to salt loading with a greater rise of blood pressure, salt loading produced structural changes of the forearm resistance vessels and structural vascular changes contributed to the saltinduced increase in forearm vascular resistance.
Icnitas de dinosaurios bípedos de La Rioja (Cuenca de Cameros, Cretácico Inferior): icnotaxonomía y aplicación paleobiológica

Los primeros trabajos sobre icnitas de dinosaurios en La Rioja (Cuenca de Cameros, Cretacico Inferior, Espana) se realizaron a principios de los anos 70 del siglo pasado en los alrededores del pueblo de Enciso. Desde ese momento hasta la actualidad se han estudiado aproximadamente 150 yacimientos y mas de 9000 icnitas de dinosaurio. En esta Tesis Doctoral se han analizado los 142 yacimientos en los que se habian descrito icnitas de dinosaurios bipedos (22 en el Grupo de Oncala, ocho en el Grupo de Urbion y 112 en el Grupo de Enciso) ampliando y actualizando significativamente el conocimiento previo que habia sobre su icnotaxonomia y sistematica. Las icnitas ornitopodas grandes se han asignado a los icnotaxones Iguanodontipus y Caririchnium. El icnogenero Iguanodontipus se ha identificado en el Grupo de Oncala y en otros yacimientos coetaneos (Berriasiense-Valanginiense) europeos. Se han denominado como Caririchnium las icnitas ornitopodas grandes de los grupos de Urbion y de Enciso. Ademas, en el Grupo de Enciso las icnitas mejor conservadas se han clasificado como Caririchnium magnificum y Caririchnium lotus. Se ha definido en el Grupo de Enciso un nuevo icnotaxon teropodo, Riojapodus amei, caracterizado principalmente por tener la impresion de la una del dedo II mas desarrollada que la de los dedos III y IV y el talon bilobulado. Tambien se han relacionado a este icnogenero algunas icnitas del Grupo de Oncala. Por ultimo, se han clasificado como cf. Magnoavipes las icnitas de varios rastros de un yacimiento del Grupo de Enciso. Se ha realizado un estudio de las afinidades filogeneticas de los icnopoyetas de las icnitas de dinosurios bipedos de La Rioja. Para ello, se han analizado las partes blandas y la anatomia funcional de los huesos del acropodio y metapodio posteriores de los dinosaurios bipedos, y se ha elaborado un analisis filogenetico con dichos huesos. Se han obtenido conclusiones importantes que relacionan los diferentes tipos de musculatura y de forma de los huesos como un cambio en la locomocion entre los ornitopodos basales (y teropodos) y los mas derivados. Ademas, se ha observado que los huesos del acropodio y metapodio posteriores de los dinosaurios bipedos reflejan gran parte de las relaciones filogeneticas consensuadas para estos dinosaurios. Esta conclusion se apoya en el analisis filogenetico comparativo basado en matrices que incluyen caracteres de todo el esqueleto. Del analisis filogenetico realizado unicamente con huesos del acropodio y metapodio posteriores se extrae que las icnitas ornitopodas grandes de la Rioja clasificadas como Iguanodontipus y Caririchnium pertenecerian a un estiracosterno no hadrosauroideo. Las icnitas asignadas al icnotaxon Riojapodus se han relacionado provisionalmente con espinosaurios u ornitomimosaurios. Por ultimo, las de determinadas como cf. Magnoavipes podrian pertenecer a un ornitopodo basal o a un teropodo.
Burnout in medical students: a systematic review

Background Burnout is a state of mental and physical exhaustion related to work or care‐giving activities. Distress during medical school can lead to burnout, with significant consequences, particularly if burnout continues into residency and beyond. The authors reviewed literature pertaining to medical student burnout, its prevalence, and its relationship to personal, environmental, demographic and psychiatric factors. We ultimately offer some suggestions to address and potentially ameliorate the current dilemma posed by burnout during medical education.
How could you think that?!?!: Understanding intentions to engage in political flaming

Communication scholars have both lauded and questioned the Internet’s role in facilitating democracy. However, few studies have examined aggressive communication behavior in online political discussion spaces. Two studies were conducted to examine use of aggressive discussion behaviors online, otherwise known as flaming. Study one utilized a survey of 289 undergraduate students at a large public university. Study two utilized a survey of 305 individuals who frequent political blogs. Results from both studies suggest that individuals are more likely to engage in political flaming when their beliefs are directly challenged. In addition, results indicate that whether an individual’s identity is known or unknown did not influence their intention to flame within the student sample. In the blog-user sample, we found that direct challenges when identities were not known increased intention to flame. Finally, we examine the relationship between political flaming and several individual-level variables.
Arthroscopic rotator cuff repair with double-row fixation.

BACKGROUND The treatment of rotator cuff tears has evolved from open surgical repairs to complete arthroscopic repairs over the past two decades. In this study, we reviewed the results of arthroscopic rotator cuff repairs with the so-called double-row, or footprint, reconstruction technique. METHODS Between 1998 and 2002, 264 patients underwent an arthroscopic rotator cuff repair with double-row fixation. The average age at the time of the operation was fifty-nine years. Two hundred and thirty-eight patients (242 shoulders) were available for follow-up; 210 were evaluated with a full clinical examination and thirty-two, with a questionnaire only. Preoperative and postoperative examinations consisted of determination of a Constant score and a visual analogue score for pain as well as a full physical examination of the shoulder. Ultrasonography was done at a minimum of twelve months postoperatively to assess the integrity of the cuff. RESULTS The average score for pain improved from 7.4 points (range, 3 to 10 points) preoperatively to 0.7 point (range, 0 to 3 points) postoperatively. The subjective outcome was excellent or good in 220 (90.9%) of the 242 shoulders. The average increase in the Constant score after the operation was 25.4 points (range, 0 to 57 points). Ultrasonography demonstrated an intact rotator cuff in 83% (174) of the shoulders overall, 47% (fifteen) of the thirty-two with a repair of a massive tear, 78% (thirty-two) of the forty-one with a repair of a large tear, 93% (113) of the 121 with a repair of a medium tear, and 88% (fourteen) of the sixteen with a repair of a small tear. Strength and active elevation increased significantly more in the group with an intact repair at the time of follow-up than in the group with a failed repair; however, there was no difference in the pain scores. CONCLUSIONS Arthroscopic rotator cuff repair with double-row fixation can achieve a high percentage of excellent subjective and objective results. Integrity of the repair can be expected in the majority of shoulders treated for a large, medium, or small tear, and the strength and range of motion provided by an intact repair are significantly better than those following a failed repair. LEVEL OF EVIDENCE Therapeutic Level IV.
Parallel Computation of Aerial Target Reflection of Background Infrared Radiation: Performance Comparison of OpenMP, OpenACC, and CUDA Implementations

The infrared (IR) signature of an aerial target due to the reflection of radiation from the Sun, the Earth's surface and atmosphere plays an important role in aerial target detection and tracking. As the background radiation from the Earth's surface, and atmosphere is distributed in the entire space and in a wide spectrum, it is time-consuming to obtain an aerial target's reflected radiation. This problem is suitable for parallel implementation to run on multicore CPU or many-core GPU because the reflection of background radiation incident from different directions in each spectral wavelength can be calculated in parallel. We consider three different parallel approaches: 1) CPU implementation using OpenMP (open multiprocessing); 2) GPU implementation using OpenACC (open accelerators); and 3) GPU implementation using CUDA (compute unified device architecture). An NVIDIA K20c GPU (with 2496 cores) and two Intel Xeon E5-2690 CPU (with 8 cores each) are used in our experiment. Compared to their single-threaded CPU counterpart, speedups obtained by OpenMP, OpenACC, and CUDA implementations are 15x, 140x, 426x, respectively. The result shows that GPU implementations are promising in our problem.
A Study of Face Detection Using CNN and Cascade Based on Symmetry-LGP & Uniform-LGP and the Skin Color

This paper offers toughness to external factors such as lighting, background, angle and improved algorithm on detecting speed. this paper uses the S-LGP(Symmetry Uniform Local Gradient Pattern) and U-LGP(Uniform Local Gradient Pattern) methods that improve the symmetry and uniform using the LGP(Local Gradient Pattern) that are stronger against external factors such as changes of lighting, facial expression, background etc. than the LBP(Local Binary Pattern) through preprocessing the input image and the skin color extracting method at the YCbCr space using the Cascade Classifier Training extractor that forms XML files which is made from gathering and studying the positive face sample and negative face sample at a 1:2 rate and uses the CNN(Convolution Neural Network) of deep learning algorithm to study it. Suggested algorithm is applicable for applications, as well as improve the accuracy of detection.
Integrated Active Fault-Tolerant H-infinity Control by Designing an Auxiliary Self-Examination Plant

This paper proposes an integrated design of active fault-tolerant H∞ control in the presence of unknown actuator faults. An adaptive tracking law is designed by designing an auxiliary self-examination plant, so that actuator fault parameters and their boundaries are estimated accurately and the identification of each actuator fault is decoupled from exogenous disturbance and other actuator faults in a fault observer. With the information of fault diagnosis, especially the boundaries of estimation errors, an integrated fault-tolerant H∞ control method is constructed to guarantee the overall H∞ performance of the system in the presence of unknown actuator faults. Finally, the effectiveness of the proposed approach is validated by stabilizing an F-16 fighter.