Miracle-dz/UniFAR-FTUs huggingface dataset:
El acceso a la dirección escolar de las profesoras de educación infantil y primaria. barreras y oportunidades

Este articulo presenta el proceso y los resultados de una investigacion en la se analizan las barreras que limitan el acceso de las mujeres a la direccion escolar en la ensenanza infantil y primaria. Mediante un muestreo polietapico (que combina el procedimiento aleatorio estratificado y el de conglomerados), se ha seleccionado una muestra de 622 profesoras procedentes de las ocho provincias andaluzas. Se utilizo un cuestionario elaborado ad hoc en el que se incluian preguntas relativas a la informacion de caracter profesional y vital y a las opiniones y experiencias de las encuestadas ante la direccion escolar. Asimismo, se incluyo una escala sobre condicionantes en el acceso a la direccion, cuyas dimensiones reflejan posibles barreras en el desarrollo profesional (conflicto de roles, autoestima, expectativas de exito, etc.). Los resultados muestran que una mayoria de encuestadas piensa que no existe discriminacion en el acceso a la direccion escolar, si bien se reconocen las responsabilidades familiares y el hecho de tener otras prioridades vitales, razones por las que las mujeres no acceden al cargo.
To improve wireless power transmission efficiency by using coil arrays

A new method of using coil arrays at both the transmitter and receiver sides is introduced for wireless power transmission (WPT) employing the technique of mid-range strong magnetic resonant coupling. Dual two-coil arrays are designed as the WPT system, where one array is used for the power transmitter while the other array is applied for the power receiver. It is shown that a power transmission efficiency of well over 50% at a transmission separation of 50 cm can be achieved. This efficiency is much higher than the usual cases of not using coil arrays both on the transmitting and receiving sides. Also, the optimized values of load resistors connected to the receiver coil elements show that the proposed WPT system is especially suitable for charging batteries with very low internal resistances such as batteries in laptops and mobile phones.
Çevre ve Kent Estetiği

Tarih boyunca insanlar tek tek yapilarda oldugu kadar yarattiklari fiziksel cevrelerde de estetik nitelik aramislar ve bu kaygi ile cevrelerini duzene sokma arayisinda olmuslardir. Dogal ve kulturel ogelerin bir araya gelmesi ile bicimlenen kentler onu olusturan parcalardan farkli nitelik tasiyan butunlerdir. Gerek tek yapilarin gerekse yapi ve acik yesil alanlarin bir araya gelerek olusturduklari cevrenin yalnizca insanin biyolojik gereksinmelerini karsilayan islevsellik degil, ayni zamanda psikolojik, entelektuel gereksinmelerini de karsilayan estetik nitelikler de tasimasi gerekmektedir. Bu makalede tarihi surec icinde cevre ve kent estetiginin gelisimi ortaya konmus, estetik olgusu kavramsal olarak irdelenerek kentsel cevrelerde kimlik, kentsel goruntu ve estetik degerler kuramlarina deginilerek kentlerin kent tanimina hak kazanabilmeleri icin sahip olmalari gereken estetik degerler ve kentsel tasarim yaklasimlari tartisilmistir.
Stability of Amorphous-Silicon and Nanocrystalline Silicon Thin-Film Transistors Under DC and AC Stress

Bottom-gated n-channel thin-film transistors (TFTs) were fabricated using hydrogenated amorphous-silicon (a-Si:H)/ nanocrystalline silicon (nc-Si:H) bilayers as channel materials, which are deposited by plasma-enhanced chemical vapor deposition at low temperatures. The stability of these devices is investigated under static and dynamic bias stress conditions. For comparison, the stability of a-Si:H and nc-Si:H single-layer TFTs is investigated under similar bias stress conditions. The overall results demonstrate that the a-Si:H/nc-Si:H bilayer TFTs are superior compared with their counterparts of a-Si:H and nc-Si:H TFTs regarding device performance and stability.
Flexible Resistive Switching Memory Device Based on Amorphous InGaZnO Film With Excellent Mechanical Endurance

Semitransparent flexible resistive-switching memory devices, using amorphous InGaZnO as the switching layer, are fabricated on plastic substrates at room temperature. The device shows high performance, excellent flexibility, and mechanical endurance in bending tests. No performance degradation occurs, and the stored information is not lost after bending the device to different angles and up to 105 times. Studies on the temperature-dependent electrical properties reveal that the conducting channels of the low-resistance state are composed of oxygen-deficient defects, and partial oxidation of these defects switches the device to the high-resistance state. The unique electronic structure and flexible mechanical properties of amorphous InGaZnO ensure stable device performance in flexible applications.
coronary arteries . von Willebrand ' s disease prevents occlusive thrombosis in stenosed and injured porcine

We studied the role of von Willebrand factor in coronary thrombosis in normal, heterozygous, and homozygous von Willebrand's disease pigs by producing coronary stenosis with a Goldblatt clamp positioned around the left anterior descending coronary artery. Flow velocity was assessed by a 20-MHz Doppler velocity probe distal to the Goldblatt clamp. Myocardial extracellular potassium levels were measured by potassium-sensitive electrodes in myocardium supplied by the left anterior descending artery. Whereas stenosis sufficient to block reactive hyperemia to a 20-second occlusion produced an elevation of myocardial extracellular potassium, it produced neither spontaneous cyclic flow reductions nor permanent cessation of coronary blood flow velocity. Injury of the coronary artery at the stenosis site with spring-loaded forceps produced cyclic flow reductions or permanent cessation of flow in eight of nine phenotypically normal pigs. On the other hand, flow variations occurred in none of the 10 von Willebrand's disease pigs, including four given purified von Willebrand factor at a dose that failed to correct the bleeding time (p<0.001, % test). Permanent cessation of flow was caused by an occlusive platelet-fibrin-red-blood-cell thrombus. Scanning electron micrographs from pigs with cyclic flow variations and from von Willebrand's disease pigs showed injured endothelium covered by adherent platelets, red and white blood cells, and fibrin. These data suggest an important role of native von Willebrand factor in sudden occlusive arterial thrombosis following stenosis and intimal injury. (Circulation Research 1986;59:15-26)
Human-Vehicle Interfaces: The Power of Vehicle Movement Gestures in Human Road User Coordination

Summary: Autonomous vehicles will have to coordinate their behavior with human road users such as drivers and pedestrians. The majority of recently proposed solutions for autonomous vehicle-to-human communication consist of introducing additional visual cues (such as lights, text and pictograms) on either the car’s exterior or as projections on the road. We argue that potential shortcomings in the visibility (due to light conditions, placement on the vehicle) and immediate understandability (learned, directive) of many of these cues make them alone insufficient in mediating multi-party interactions in the busy intersections of day-to-day traffic. Our observations of real-world human road user behavior in urban intersections indicate that movement in context is a central method of communication for coordination among drivers and pedestrians. The observed movement patterns gain meaning when seen within the context of road geometry, current road activity, and culture. While all movement communicates the intention of the driver, we highlight the use of movement as gesture, done for the specific purpose of communicating to other road users and give examples of how these influence traffic interactions. An awareness and understanding of the effect and importance of movement gestures in day-to-day traffic interactions is needed for developers of autonomous vehicles to design forms of human-vehicle communication that are effective and scalable in multi-party interactions.
A hierarchical distributed fault diagnosis system for hydropower plant based on fog computing

In this paper, a new hierarchical distributed fault diagnosis system for hydropower plant equipment was presented This system was employed fog computing which use the Storm-based computing unit as edge computing node and a cloud The type heterogeneous needed by fault diagnosis system and the data processing workflow of hydropower plant equipment were discussed. The system also defines a Case-based Reasoning model to classify the fault type. Finally a real application case is given in this paper.
Accelerating the artificial bee colony algorithm by hardware parallel implementations

Artificial bee colony (ABC) is an optimization algorithm inspired on the intelligent behavior of honey bee swarms. It is suitable to be applied when mathematical techniques are impractical or provide suboptimal solutions. As a population-based algorithm, the ABC suffers on large execution times specifically for embedded optimization problems with computational limitations. For that we propose a hardware parallel architecture of the opposition-based ABC algorithm (HPOABC) that facilitates the implementation in Field Programmable Gate Arrays (FPGAs). Numerical simulations using four well-known benchmark problems demonstrate that the opposition-based approach allows the algorithm to improve its functionality, preserving the swarm diversity. Additionally, synthesis results point outs that the HPOABC architecture is effectively mapped in hardware and is suitable for embedded applications.
UPLINK TRANSMIT POWER CONTROL IN A CODE DIVISION MULTIPLE ACCESS NETWORK : A FUZZY MODELING APPROACH

Transmit power has always placed a significant constraint on the performance of wireless radio systems. The transmit power control problem can be characterized as that of maintaining adequate power in each transmitted waveform so as to increase the expectation that the minimum required SIR at the receiver will at least be reached. Several power control algorithms have been proposed, of which the class of distributed and autonomous transmit power control algorithms have been shown in literature to perform quite satisfactorily when compared to centralized schemes due to the moderate complexity that is achievable; and the vast control and signalling overhead that is saved. This work explores the application of fuzzy control to the subject of modelling uplink transmit power control in code division multiple access system. A possible implementation scenario of an SIR-based fully distributed constrained transmit power control algorithm in a multiservice network by applying fuzzy proportional-plus-integral control with a two-input (error and error change) and oneoutput (transmit power adjustment command) fuzzy rule base and inference engine is proposed.
Networked haptic cooperation among multiple users via virtual object coordination to averaged position of peer copies

This paper proposes a distributed haptic control architecture whose coordination gain at each user site is independent of the number of cooperating peers. In the proposed architecture, users interact through manipulating a shared virtual object (SVO) together. The distributed copies of the SVO are controlled through virtual couplers. At each peer, the gain of the force feedback loop is maintained constant regardless of the number of interacting users by coordinating the local SVO copy to the averaged motion of the other SVO copies. The motion of the SVO representative is computed by averaging the motion of all other SVO copies. A preliminary investigation contrasts the proposed controller to traditional distributed virtual coupling control. The comparison is performed via MATLAB simulations of an exemplary cooperative manipulation performed by three users. The results illustrate that the proposed controller: (1) can render a lighter SVO with decreased position coherence among the distributed SVO copies for the same stiffness of coordination; (2) achieves similar position coherence among the distributed SVO copies for the same SVO mass.
A stylometric analysis on Bengali literature for authorship attribution

This paper explores the authorship attribution problem in modern Bengali literature. By scrutinizing the writings of six Bangladeshi columnists of current time using some established and modified stylometric features the writing patterns of these writers have been observed. With statistical analysis on a corpus containing around seven hundred articles the most effective style markers that can create a significant difference among authors were identified. Based on these features a classification model and a voting system were developed to identify the original author of an unknown document. The developed voting system achieved 90.67% accuracy rate on a test corpus of three hundred articles.
The prevalence of chronic obstructive pulmonary disease in Bolu province of Turkey

DOI: 10.4328/JCAM.5064 Received: 09.05. 2017 Accepted: 30.05. 2017 Published Online: 31.05. 2017 Corresponding Author: Suat Konuk, Kültür Mah. Akçam Sok. Daire 1/2 Düzce, Turkey. GSM: +905073410126 E-Mail: suatkonukk@windowslive.com Özet Amaç: Günümüzde Kronik Obstrüktif Akciğer Hastalığı (KOAH), tüm dünya ülkelerinde önemli bir sağlık sorunu haline gelmiştir. Diğer hastalıkların mortalite oranlarının yıllar içinde düşmesine karşılık KOAH prevalansı ve mortalitesi giderek artış göstermektedir. Bu araştırma Bolu il merkezinde KOAH prevalansını belirlemek amacıyla yapıldı. Material and Method: Bolu il merkezinde oturan, ev tespit fişlerinden rastgele yöntemle seçilen 35 yaş ve üstü 500 kişiye solunum fonksiyon testleri yapıldı. Çalışmaya katılan bireylerden 285’i (%57) erkek, 215’i (%43) kadın idi. KOAH’nın tanısı için ‘Obstruktif Akciğer hastalıkları için Global İnsiyatif’ kriterleri ile birlikte spirometri kullanıldı. Bulgular: KOAH prevalansı % 8.6 (43 kişi) bulundu. KOAH tespit edilen hastaların hiç biri hafif evrede değildi. % 34.9’i orta, % 41.86’sı ağır ve % 23.25’i çok ağır evrede idi. KOAH tespit edilen hastaların % 97.67’sinde (43 kişiden 42’sinde) sigara içme öyküsü vardı. Çalışmaya katılan erkeklerin % 9.82’sinde (285 kişiden 28 kişide), kadınların % 6,97’sinde (215v kişiden 15 kişide) KOAH saptandı. Tartışma: KOAH’ın, Bolu il merkezinde önemli bir halk sağlığı sorunu olduğu düşünüldü.
An improved method for eliminating false matches

The Eliminating of false feature matches is an important follow-up work of feature detection extraction and matching, which is of great significance in improving the quality of image matching. In this paper, it experimentally analyzed several kinds of false feature matches rejection methods (Distance-ratio Criterion method, Bi-direction Matching method and RANSAC), which are performed based on the ORB feature point detection and descriptor extraction and the BF matching. In view of the overall filtering effect, RANSAC is relatively optimal, but it still has the disadvantages of slower filtering speed and fewer matching points after filtering. Propose an improved algorithm based on Bi-direction Matching method and Distance-ratio Criterion method, and conduct series of experiments with it. The experiments show that the filtering effect of the improved filtering algorithm is better than RANSAC. It is less time-consuming (reduced by 58.4%, compared with RANSAC), and retains more correct matches (increased by 14.8%, compared with RANSAC) while removing the false matches.
AxTrain: Hardware-Oriented Neural Network Training for Approximate Inference

The intrinsic error tolerance of neural network (NN) makes approximate computing a promising technique to improve the energy efficiency of NN inference. Conventional approximate computing focuses on balancing the efficiency-accuracy trade-off for existing pre-trained networks, which can lead to suboptimal solutions. In this paper, we propose AxTrain, a hardware-oriented training framework to facilitate approximate computing for NN inference. Specifically, AxTrain leverages the synergy between two orthogonal methods---one actively searches for a network parameters distribution with high error tolerance, and the other passively learns resilient weights by numerically incorporating the noise distributions of the approximate hardware in the forward pass during the training phase. Experimental results from various datasets with near-threshold computing and approximation multiplication strategies demonstrate AxTrain's ability to obtain resilient neural network parameters and system energy efficiency improvement.
Effect of Staphylococcus aureus and Streptococcus uberis on apoptosis of bovine mammary gland neutrophils in vitro

Neutrophils play an important role in the defence of the bovine mammary gland against bacterial infections. In the course of the resolution of mammary gland inflammation, neutrophils undergo programmed cell death - apoptosis. The aim of this study was to confirm whether the co-cultivation of neutrophils of the bovine mammary gland with either Staphylococcus aureus or Streptococcus uberis leads to signs of apoptosis. In the study, 16 mammary glands of four virgin heifers aged 16 to 18 months were examined. Neutrophils were obtained by lavage after an induced influx. After a three-hour incubation of the neutrophils with bacteria in vitro, neu- trophil apoptosis was detected by morphological features, by determination of histone-associated DNA fragments (ELISA), and by Annexin-V and propidium iodide positivity (flow cytometry). S. aureus and S. uberis reduced the incidence of karyopycnotic and zeiotic neutrophils (P 0.05). The incubation of neutrophils with bacteria, however, increased the proportion of Annexin-V-positive cells ( P < 0.01) and Annexin-V and propidium iodide-positive cells ( P < 0.05). Co-cultivation of neutrophils with either S. aureus or S. uberis led to the induction of phosphatidylserine translocation characteristic of the early stage of apoptosis. The late signs of apoptosis were delayed by co-culti- vation of neutrophils with both pathogens. Therefore it is obvious that although the programmed cell death of apoptosis is initiated by these pathogens, the completion of the program is delayed.
The Normative Theories of Business Ethics: A Guide for the Perplexed

Abstract: The three leading normative theories of business ethics are the stockholder theory, the stakeholder theory, and the social contract theory. Currently, the stockholder theory is somewhat out of favor with many members of the business ethics community. The stakeholder theory, in contrast, is widely accepted, and the social contract theory appears to be gaining increasing adherents. In this article, I undertake a critical review of the supporting arguments for each of the theories, and argue that the stockholder theory is neither as outdated nor as flawed as it is sometimes made to seem and that there are significant problems with the grounding of both the stakeholder and social contract theory. I conclude by suggesting that a truly adequate normative theory of business ethics must ultimately be grounded in individual consent.
A Simplified Method to Analyze Synchronous Reluctance Machine

This paper establishes an analytical method to calculate the torque of synchronous reluctance machine (SynRM) with multiple layer flux barrier on rotor. A simplified model is derived from the magnetic circuit model to analyze the effect of the pole-pair number, stator and rotor structures, and winding configurations on the SynRM performance. Two prototypes are optimized following the rules concluded from the simplified model, and their performances are calculated with both analytical method and finite element method (FEM). Thanks to the performance improvement, the SynRM can be a considerable candidate for the electrical vehicle drive motor.
The Ehrhart polynomial of the Birkhoff polytope

The n Birkhoff polytope is the set of all doubly stochastic n × n matrices, that is, those matrices with nonnegative real coefficients in which every row and column sums to one. A wide open problem concerns the volumes of these polytopes, which have been known for n ≤ 8. We present a new, complex-analytic way to compute the Ehrhart polynomial of the Birkhoff polytope, that is, the function counting the integer points in the dilated polytope. One reason to be interested in this counting function is that the leading term of the Ehrhart polynomial is—up to a trivial factor—the volume of the polytope. We implemented our methods in the form of a computer program, which yielded the Ehrhart polynomial (and hence the volume) of the ninth and the volume of the tenth Birkhoff polytope.
Science Teachers’ Perceptions of STEM Education: Possibilities and Challenges

In order to promote STEM (Science, Technology, Engineering, and Mathematics) education through developing a professional development model, this study seeks to identify science teachers’ perceptions regarding STEM education and its interdisciplinary nature, and to identify the factors that facilitate and hinder such a form of instruction in their schools. Being one of the first studies of STEM education in Saudi Arabia, this study elicits science teachers’ perceptions through the use of qualitative methodologies. The instruments include focus groups, teacher-reflection and an interview protocol. The study ends with recommendations that could lead to develop a professional development model of what science teachers need in terms of pedagogical content knowledge to enact STEM education in class. 
Numerical simulation of a pulsatile flow through a flexible channel

An algorithm for approximation of an unsteady fluid-structure interaction problem is pro- posed. The fluid is governed by the Navier-Stokes equations with boundary conditions on pressure, while for the structure a particular plate model is used. The algorithm is based on the modal de- composition and the Newmark Method for the structure and on the Arbitrary Lagrangian Eulerian coordinates and the Finite Element Method for the fluid. In this paper, the continuity of the stresses at the interface was treated by the Least Squares Method. At each time step we have to solve an optimiza- tion problem which permits us to use moderate time step. This is the main advantage of this approach. In order to solve the optimization problem, we have employed the Broyden, Fletcher, Goldforb, Shano Method where the gradient of the cost function was approached by the Finite Difference Method. Numerical results are presented.
Semantic Multimedia Fog Computing and IoT Environment: Sustainability Perspective

We propose a fog-cloud hybrid architecture that can support a massive ad hoc crowd composed of a massive social network and distributed IoT nodes around a smart city environment. The fog computing framework is introduced to support energy efficiency by incorporating IoT nodes that act as an interface to the ad hoc crowd, is aware of user contexts within its vicinity, can do real-time processing of user requests, supports a constrained amount of data offloading, and pass the geo-tagged multimedia data available from the subset of the ad hoc crowd to the big data repository in the cloud. The framework leverages a sustainable crowdsourcing incentive model for both the ad hoc crowd and the IoT infrastructure provider. The proposed sustainable framework can potentially support context-aware smart city services such as finding a lost person within the crowd, showing green and health risk prone zones, semantic and location-aware notifications of events of interest, semantic IoT-based routing, and dealing with emergency situations. We present a communication architecture between mobile users and fog nodes, and between fog nodes and the cloud, a sustainability and energy efficiency model, and massive geo-tagged, multimedia big data architecture.