Miracle-dz/UniFAR-FTUs huggingface dataset:
Endoscopic detachable snare ligation: a new treatment method for colonic diverticular hemorrhage

Background and study aims: Colonic diverticular hemorrhage is the most common cause of lower intestinal bleeding. We tried to develop a convenient and reliable hemostatic method, endoscopic detachable snare ligation (EDSL), to treat diverticular hemorrhage and retrospectively explored its safety and efficacy. Patients and methods: The definitive bleeding diverticulum was ligated with a detachable snare, instead of a rubber band, in a procedure similar to endoscopic band ligation. Removal of the scope to attach a ligation device and reinsertion for treatment are not needed in this method. Results: From November 2013 to September 2014, EDSL was used to treat 8 patients with colonic diverticular hemorrhage. The mean procedure time required for hemostasis after identification of the bleeding diverticulum was 5 ± 2 minutes. Sustained hemostasis was achieved in 7 patients (88 %), and early rebleeding occurred in 1 patient, in whom the applied suction seemed inadequate. No complications occurred in any patient. Conclusions: EDSL may be a safe and effective treatment for colonic diverticular hemorrhage. However, additional studies are warranted to confirm these initial exploratory data.
Use of Bench-top Nmr to Measure the Density, Composition and Desorption Isotherm of C-s-h in Cement Paste

H nuclear magnetic resonance (NMR), supported by a measurement of the degree of hydration using X-ray diffraction, has been used to fully characterise the nano-scale porosity and composition of calcium-silicate-hydrate (C-S-H), the active component of cement. The resultant “solid” density and composition are 3 g/cm 68 . 2 = ρ ; (Ca)1.53. (Si0.96,Al0.04)O3.51. (H2O)1.92 for an underwater cured, never-dried cement paste with an initial mix water-to-cement ratio of 0.4 after 28 days of hydration. In addition, the first pore-type resolved desorption isotherm of cement that shows the location of water as a function of relative humidity has been measured. Critical to our results is verification of the assignment of the different NMR spin-spin relaxation time components. These have been corroborated with conventional analyses. The new methodology is key to enabling design of cement pastes with lower environmental impact.
AUTHOR: CRAIG E. ABRAHAMSON TITLE: ISSUES IN INTERACTIVE COMMUNICATION IN DISTANCE EDUCATION

Increased pressure relating to employment schedules, finances, and family responsibilities, as well as the high-cost of post-secondary education and the limited availability of scholarships, has created an increased need for distance education. Distance learning research has defined certain problematic areas which must be addressed in an effort to enhance the distance learning experience. This paper identifies four major issues relating to interactive communication in distance learning education, specifically, (1) personal contact between the primary instructor and the student; (2) personal contact between the primary instructor and the on-site instructor; (3) personal contact between the on-site instructor and the student; and (4) interactions between the students themselves, and offers specific solutions and recommendations which may be helpful in resolving these issues.
Full-rank affine invariant submanifolds

We show that every GL(2, R) orbit closure of translation surfaces is either a connected component of a stratum, the hyperelliptic locus, or consists entirely of surfaces whose Jacobians have extra endomorphisms. We use this result to give applications related to polygonal billiards. For example, we exhibit infinitely many rational triangles whose unfoldings have dense GL(2,R) orbit.
Estudio Internacional sobre la Enseñanza y el Aprendizaje.

Recension de: TALIS (OCDE) Estudio Internacional sobre la Ensenanza y el Aprendizaje. Informe Espanol 2009. Ministerio de Educacion. Secretaria de Estado de Educacion y Formacion Profesional. Direccion General de Evaluacion y Cooperacion Territorial. Instituto de Evaluacion. Madrid: 2009. http://www.institutodeevaluacion. mec.es/contenidos/internacional/talis_2009_informe_esp. pdf
Câncer de laringe: um olhar sobre a qualidade de vida

Introducao: os tumores de laringe representam 25% dos tumores de cabeca e pescoco e cerca de 2% de todos os cânceres no Brasil. No entanto, a evolucao dos pacientes com câncer de laringe, apos ser determinado o fim das possibilidades de cura e tratamento, e pouco conhecida. Atualmente, os estudos sobre a qualidade de vida desses pacientes tem alcancado grande destaque na literatura e na pratica clinica. Esses estudos visam sugerir como desenvolver o tratamento para que haja uma menor repercussao dos sintomas do câncer e/ou como desenvolver o tratamento no desempenho diario do paciente. Objetivo: contribuir com os profissionais envolvidos na assistencia a estes pacientes para que reflitam sobre os fatores que influenciam a qualidade de vida dos mesmos. Metodos: revisao bibliografica sobre a qualidade de vida do paciente com câncer de laringe e aspectos epidemiologicos . Resultados: ultimamente, diversos instrumentos especificos foram criados com o objetivo de quantificar a qualidade de vida de portadores do câncer de cabeca e pescoco, avaliando esse aspecto durante ou apos o tratamento, e refletindo a perspectiva do paciente frente ao tratamento, assim como, discutindo e expondo as possiveis fragilidades terapeuticas. Conclusoes: e necessario, a fim de aumentar a eficacia desses instrumentos, que se conheca mais sobre a historia natural da doenca, sua epidemiologia, sintomas, tratamento e tempo de sobrevida apos o diagnostico, e assim sendo, os profissionais envolvidos no tratamento desse câncer podem contribuir ainda mais na recuperacao da saude do paciente.
Estimation of Time Varying Adjusted Probability of Informed Trading and Probability of Symmetric Order-Flow Shock

Recently Duarte and Young (2009) study the probability of informed trading (PIN) proposed by Easley et al.(2002) and decompose it into two parts: the adjusted PIN (APIN) as a measure of asymmetric information and the probability of symmetric order- ow shock (PSOS) as a measure of illiquidity. They provide some cross-section estimates of these measures using daily data over annual periods. In this paper we propose a method to estimate daily APIN and PSOS by extending the method in Tay et al. (2009) using high-frequency transaction data. Our empirical results show that while PIN is positively contemporaneously correlated with variance, APIN is not. On the other hand, PSOS is positively correlated with daily average e ective spread and variance, which is consistent with the interpretation of PSOS as a measure of illiquidity. Compared to APIN, PSOS exhibits clustering and sporadic bursts over time.
Leveraging Human Insights Into Problem Structure for Scientific Discovery

The field of computer science is undergoing a fundamental change. The big data revolution calls for improved computational methods, beyond the exponential growth of storage or computational capacity. At the same time, pressing issues in sustainability, including complex environmental, social and economic aspects, are also reshaping the field of computer science, as they often raise new challenges and warrant fundamentally innovative techniques.
Need for mystery : development and validation of a new construct

This dissertation introduces a new construct I have labeled Need for Mystery and the scale designed to measure this construct. Need for Mystery (nMyst) is a tendency to maintain cherished beliefs by mystifying them. Instead of the systematic approach entailed by science, such individuals justify their beliefs in ways that are not easily susceptible to proof or disproof and fit with a more intuitive way of understanding the world. In order to study nMyst, I have constructed a questionnaire to measure individual differences in the construct. Included are details of the scale construction and four studies conducted to establish its validity as a measure of nMyst. Study 1(N = 326) evaluated the factor structure of the initially generated item set. It also included a number of other personality scales to begin to assess the nomological network of potentially related constructs. Study 2 (N = 15,630) was collected on Facebook. The final dataset was large enough to allow for independent tests of a number of CFA models. Included was a direct comparison of Western-heritage participants with Chinese-heritage participants. I also tested the nMyst scale items using an Item Response Theory (IRT) analysis and examined the influence of nMyst on religious conversion. Study 3 (N = 360) extended the nomological net to include measures of political attitudes. Participants were recruited using Mechanical Turk. Study 4 (N = 100) specifically addressed issues of discriminant validity and evaluated the temporal stability of the nMyst scale with a 3-month test-retest reliability. These four studies indicate that nMyst is reliable and valid measure that makes a unique contribution to the literature on individual differences in belief.
Eğitsel Oyunlarla “Yansıma ve Aynalar” Konusunun Öğretimi: Yansımalı Koşu Örneği

Bu calismada, ortaokul altinci sinif ogretim programindaki Isik ve Ses unitesinde bulunan ‘yansima ve aynalar’ konusunun ogretimine yonelik bir egitsel oyun etkinligi tasarlanmistir. Tasarlanan etkinlikle ogrencilerin derse aktif katilimi ve ‘yansima ve aynalar’ konusunun eglenceli bir sekilde somutlastirilarak anlamli ogrenilmesine katkida bulunmak amaclanmistir. Calismanin sonunda, tasarlanan etkinlik fen ve teknoloji derslerinde uygulanabilirligi yonunden degerlendirilmistir.
Application of Hydrodynamic Cavitation to Wastewater Treatment

Hydrodynamic cavitation is a promising application in wastewater treatment due to its simple reactor design and capacity in large-scale operation. Theoretical studies including the basic mechanism of pollutant degradation, modeling of pressure distribution in the cavitation reactor, and bubble dynamics models coupled with chemical reactions are evaluated. Experimental setups with different cavitation reactors and operation parameters are compared for degrading specific kinds of pollutants. The effort directions for both theoretical and experimental investigations are suggested on the basis of the reviewed contents. Easy large-scale operation, effective combination with intensified strategies, and capability to deal with biorefractory or toxic compounds contribute to the great potential of hydrodynamic cavitation.
Hypothesizing Word Association From Untagged Text

This paper reports a new method for suggesting word associations, based on a greedy algorithm that employs Chi-square statistics on joint frequencies of pairs of word groups compared against chance co-occurrence. The benefits of this new approach are: 1) we can consider even low frequency words and word pairs, and 2) word groups and word associations can be automatically generated. The method provided 87% accuracy in hypothesizing word associations for unobserved combinations of words in Japanese text.
Comment échapper aux dérives managérialistes ? Des apports des auteurs critiques pour la recherche en GRH

En depit du succes remporte par la notion de MSRH, la redefinition de la GRH operee au cours des annees 1990 a souleve de nombreuses reserves. Aujourd'hui encore, les auteurs s'affrontent quant aux priorites a donner a la GRH et a la recherche pour cette discipline. Cet article se fonde alors sur les prises de position recentes des auteurs qui revendiquent une approche critique du management pour degager des pistes qui permettent de reorienter la recherche et d'echapper a ce qui a ete qualifie de derive managerialiste.
Some Remarks about Additive and Multiplicative Functions

The present paper contains some results about the classical multiplicative functions 4(n), a(n) and also about general additive and multiplicative functions. (1) It is well known that n/4(n) and u(n)/% have a distribution functi0n.l Denote these functions byfr(x) andf&z). (jr(x) denotes the density of integers for which n/4(n) Ix. ) It is known that both jr(x) and fi(x) are strictly incrtasing and purely singular. ’ We propose to investigate jr(~) and j’i(x); we shall give details only in case of jr(x)‘ First we prove the following theorem.
HEIGHT ESTIMATE FOR SPECIAL WEINGARTEN SURFACES OF ELLIPTIC TYPE IN M(c)× R

In this article we provide a vertical height estimate for compact special Weingarten surfaces of elliptic type in M2(c) × R, i.e. surfaces whose mean curvature H and extrinsic Gauss curvature Ke satisfy H = f(H2 −Ke) with 4x(f ′(x))2 < 1, for all x ∈ [0,+∞). The vertical height estimate generalizes a result by Rosenberg and Sa Earp and applies only to surfaces verifying a height estimate condition. When c < 0, using also a horizontal height estimate, we show a non-existence result for properly embedded Weingarten surfaces of elliptic type in H2(c)× R with finite topology and one end.
Regional Income Distribution in Mexico: New Long-Term Evidence, 1895–2010

ABSTRACT Recent studies in economic history have investigated long-term changes in regional income inequality in various countries after their domestic markets have been regionally integrated. But this literature has focused mainly on developed economies. Evidence is needed from developing economies. This paper is the first investigation of Mexican regional income disparity over the long term, from the early stages of domestic market integration to the present day (1895–2010). The results show that, despite a persistent north-south income division and very low rank-income mobility, regional inequality has been N-shaped over the long term. This trend is closely correlated to the economic models adopted by Mexico since the late nineteenth century. Box-plot graphs and kernel densities suggest that the initial divergence was driven by rich states becoming richer and poor states becoming poorer, and the subsequent convergence by rich states’ incomes falling towards the national average and poor states’ incomes improving. Moran’s I coefficients show that the only statistically significant income cluster appearing over the entire period was the low income cluster formed by the southern regions. In other words, in Mexico, having rich neighbours does not bring a region prosperity.
Image Enhancement by Adaptive Power-Law Transformations

Normally the quality of an image is improved by enhancing contrast and sharpness. The enhancement of contrast and sharpening of an image with a single function is a complex task. In real-time imaging, many complex scenes require local contrast improvements that should bring details to the best possible visibility of the image. However, local enhancement methods mainly suffer from ringing artefacts and noise over-enhancement. In this paper, we present a new adaptive spatial domain contrast and sharpness enhancement method, in which modified powerlaw transformations function is applied. Our algorithm controls perceived sharpness/smoothness, ringing artefacts (contrast) and noise, resulting in a good balance between visibility of details and non-disturbance of artefacts by controlled parameters. Its advantage over the standard power-law transformations is to enhance sharpness /smoothness and contrast with a single function by appropriate choice of control parameters. Sharpness control parameter can be also used to smoothen the image by taking the negative value of sharpness parameter. This method can be applied both to grey scale and colour images like Gamma Correction (GC). In the case of colour images, it is applied to each channel R, G and B separately.
Intracluster and Intragroup Entropy from Quasar Activity

We investigate how the hierarchical merging of dark matter halos, the radiative cooling of baryons, and the energy feedback from supernovae and active galactic nuclei or quasars combine to govern the amount and the thermal state of the hot plasma pervading groups and clusters of galaxies. We show that, by itself, supernova preheating of the external gas flowing into clusters falls short of explaining the observed X-ray scaling relations of the plasma luminosity LX or the plasma entropy K versus the X-ray temperature T. To account for the scaling laws from rich to poor clusters takes preheating enhanced by the energy input from active galactic nuclei. In groups, on the other hand, the internal impacts of powerful quasars going off in member galaxies can blow some plasma out of the structure. So they depress LX and raise K to the observed average levels; meanwhile, the sporadic nature of such impulsive events generates the intrinsic component of the wide scatter apparent in the data. The same quasar feedback gives rise in groups to entropy profiles as steep as observed, a feature hard to explain with simple preheating schemes. Finally, we argue a close connection of the LX-T or the K-T relation with the M•-σ correlation between the host velocity dispersion and the masses of the black holes, relics of the quasar activity.
Mitochondrial genomics of human pathogenic parasite Leishmania (Viannia) panamensis

Background The human parasite Leishmania (V.) panamensis is one of the pathogenic species responsible for cutaneous leishmaniasis in Central and South America. Despite its importance in molecular parasitology, its mitochondrial genome, divided into minicircles and maxicircles, haven’t been described so far. Methods Using NGS-based sequencing (454 and ILLUMINA), and combining de novo genome assembly and mapping strategies, we report the maxicircle kDNA annotated genome of L. (V.) panamensis, the first reference of this molecule for the subgenus Viannia. A comparative genomics approach is performed against other Leishmania and Trypanosoma species. Results The results show synteny of mitochondrial genes of L. (V.) panamensis with other kinetoplastids. It was also possible to identify nucleotide variants within the coding regions of the maxicircle, shared among some of them and others specific to each strain. Furthermore, we compared the minicircles kDNA sequences of two strains and the results show that the conserved and divergent regions of the minicircles exhibit strain-specific associations.
PERFORMANCE ANALYSIS OF ROUTING PROTOCOLS IN WIRELESS SENSOR

Wireless Sensor Networks utilize large numbers of Wireless Sensor nodes to forward information from source to destination. Wireless Sensor Nodes are ba ttery-powered devices. Energy saving is always vit al to maximize the lifetime of Wireless Sensor Network. Recently, there are many Routing Protocols have been designed and proposed for Wireless Sensor Networks to improve its performance in terms of Communication Time, Residual Energy and Energy Consumption and also these protocols addressed Reliability and Shortest path. In this paper, this research work has implemented various Routing Protocols namely Power Efficient Data Gathering and Aggregation Protocol (PEDAP), Power Efficient Data Gathering and Aggregation Protocol-Power Aware (PEDAP-PA), Energy Efficient Spanning Tree approach (EESR), and Localized-Power Efficient Data Gathering and Aggregation Protocol (L-PEDAP) are studied thoroughly. From the experimental resul ts, it is revealed that L-PEDAP outperforms PEDAP, PEDAP-PA and EESR in terms of Bandwidth, Resource Utilization and Communication Reliability. However, L-PEDAP fails to minimize the Energy Consumption and Communication Time due to Dynamic Routing Mechanisms. The PEDAP achieves less Communication Time to forward packets to destination. However, it fails to achieve Power-Aware Reliable Communication. From this analysis, it is observed t hat for faster communication, PEDAP could be used and for reliable communication with high bandwidth utilization, L-PEDAP is the best Routing Protocol i n Wireless Sensor Networks.
The Effect of Pressure and Acoustic Excitation on Coaxial LN2/GN2 Jets

Abstract : The present trend in liquid rocket engines, gas turbines, and Diesel engines, is towards increasingly higher chamber pressures. In many cases, the chamber pressure can exceed the critical pressures of the fuel or oxidant Above the critical pressure, the distinction between the gas and liquid phases is lost, and mechanisms conventionally associated with subcritical spray combustion no longer necessarily apply. Until recently, relatively little has been understood about the injection and combustion behavior of propellants at supercritical chamber pressures . The results presented here are an extension of our previous work 1,2 systematically investigating liquid rocket injector behavior at subcritical and supercritical pressures.
Tahmin Et-Gözle-Açıkla (TGA) Stratejisine Dayalı Laboratuar Uygulamalarının Öğrencilerin Bilimsel Süreç Becerileri ve Bilimin Doğası Hakkındaki Düşünceleri Üzerine Etkisi

Bu calismanin amaci genel biyoloji laboratuarinda “Tahmin Et-Gozle-Acikla” (TGA) stratejisine dayali hazirlanan etkinliklerin, fen bilgisi ogretmen adaylarinin bilimsel surec becerilerinin gelisimine ve bilimin dogasi hakkindaki dusunceleri uzerine etkisini dogrulama laboratuar yaklasimi ile karsilastirarak incelemektir. Arastirmanin orneklemini, Pamukkale Universitesi Egitim Fakultesi Fen Bilgisi Ogretmenligi Anabilim Dali’nda ogrenim goren ve 2007- 2008 ogretim yilinin guz doneminde Genel Biyoloji Laboratuari I dersini alan “122” ikinci sinif, ogrencisi olusturmaktadir. Veriler, “Bilimsel Surec Beceri Testi” (BSBT) ve “Bilimin Dogasi Gorus Anketi”(BDGA) kullanilarak elde edilmistir. Elde edilen bulgular; iki farkli laboratuar yaklasiminda ogrenim goren ogrencilerin BSBT testinden aldiklari ortalama puanlar arasinda deney grubu lehine istatistiksel olarak anlamli bir fark [F=10.41, p
ON MIMO CHANNEL ESTIMATION WITH SINGLE-BIT SIGNAL-QUANTIZATION

The topic of this work is channel estimation for multi-input multi-output (MIMO) systems with very coarse signal quantization at the receiver. While coarse quantization of the received signal may only have a small to moderate impact on the channel capacity of MIMO systems, it is, however, necessary for the receiver to know the MIMO channel matrix. This motivates to study possible ways of estimating the channel, having available only the receive signals after quantization, especially fairly coarse ones. Starting from known results, we develop new insights into the behavior of MIMO channel estimators which work with a single-bit quantizer. Besides ultrahigh-speed radio links, the application area includes on-chip and inter-chip bus-system, which employ a single-bit quantizer (logic comparator) at the receiving end of the bus.
‘It isn’t discussed’. Religion, belief and practice teaching

This paper discusses the question of whether practice teachers and others involved in social work education are giving sufficient attention to assisting students to explore the potential significance of religion (or other identifiable sets of beliefs) to their practice, to their own ‘worldview’ and to the lives and perspectives of service users.In doing so, it draws on direct experience and relevant literature, as well as semi-structured interviews with individual practice teachers and students and the results of a questionnaire.The paper argues that, many practice teachers and others need to urgently review their practice with regard to the exploration of issues concerning religion and belief with students, if they are to become competent social workers.