Miracle-dz/UniFAR-FTUs huggingface dataset:
Accelerated Learning Integrated by Discovery Learning in History Course: How Z Generation Learn

This research is motivated by the characteristics of middle school students who are dominated by generation Z. The purpose of this study is to find out the results of the development of the Accelerated Learning Integrated by Discovery model. This development research was adapted from Borg and Gall. The results showed that: (1) Material Validation regarding the result 89%, it can be concluded that this product is classified as very good and does not need to be revised. In other words, this product can be used in the field test. (2) The Result of Design Model Validation 83%, it can be concluded that this product is classified as very good and does not need to be revised. In other words, this product can be used in the field test. (3) Result of Media Validation 82%, it can be concluded that this product is classified as very good and does not need to be revised. In other words, this product can be used in field tests. (4) Result of Linguist Validation 70%, it can be concluded that this product is classified as Good and does not need to be revised. In other words, this product can be used in field tests. Experimental results with indicators of effectiveness, and efficiency showed 79%. It means Good. (4) There is a difference between the baseline class and the trial class. The results of the model received a learning score of 80.00 while the baseline class received scor was 68.9. Referring to the criteria of the product feasibility analysis, it is concluded that the application of the Accelerated Learning Integrated by Discovery model Good and feasible to be used of students in middle school.
Instructor-Student Interpersonal Interaction and Student Outcomes at the University Level in Indonesia

This article reports the validity of the Questionnaire on Teacher Interaction (QTI), (developed to assess student- teacher interpersonal interaction) when modified, translated and used at the university level in Indonesia. We also investigated relationships between students' outcomes (achievement and attitudes) and the quality of teacher-student interactions among 422 students in 12 classes in a private university in Indonesia. Data analyses supported the QTI's validity, revealed differences between a computer science and a management department in terms of instructor-student interactions, and identified which types of instructor-student interactions are most likely to promote student outcomes at the university level.
F18-fluorodeoxyglucose-positron emission tomography and computed tomography is not accurate in preoperative staging of gastric cancer

Purpose To investigate the clinical benefits of F18-fluorodeoxyglucose-positron emission tomography and computed tomography (18F-FDG-PET/CT) over multi-detector row CT (MDCT) in preoperative staging of gastric cancer. Methods FDG-PET/CT and MDCT were performed on 78 patients with gastric cancer pathologically diagnosed by endoscopy. The accuracy of radiologic staging retrospectively was compared to pathologic result after curative resection. Results Primary tumors were detected in 51 (65.4%) patients with 18F-FDG-PET/CT, and 47 (60.3%) patients with MDCT. Regarding detection of lymph node metastasis, the sensitivity of FDG-PET/CT was 51.5% with an accuracy of 71.8%, whereas those of MDCT were 69.7% and 69.2%, respectively. The sensitivity of 18F-FDG-PET/CT for a primary tumor with signet ring cell carcinoma was lower than that of 18F-FDG-PET/CT for a primary tumor with non-signet ring cell carcinoma (35.3% vs. 73.8%, P < 0.01). Conclusion Due to its low sensitivity, 18F-FDG-PET/CT alone shows no definite clinical benefit for prediction of lymph node metastasis in preoperative staging of gastric cancer.
Changes in Bacterial Populations and in Biphenyl Dioxygenase Gene Diversity in a Polychlorinated Biphenyl-Polluted Soil after Introduction of Willow Trees for Rhizoremediation

ABSTRACT The aim of this study was to analyze the structural and functional changes occurring in a polychlorinated-biphenyl (PCB)-contaminated soil ecosystem after the introduction of a suitable host plant for rhizoremediation (Salix viminalis). We have studied the populations and phylogenetic distribution of key bacterial groups (Alpha- and Betaproteobacteria, Acidobacteria, and Actinobacteria) and the genes encoding iron-sulfur protein α (ISPα) subunits of the toluene/biphenyl dioxygenases in soil and rhizosphere by screening gene libraries using temperature gradient gel electrophoresis. The results, based on the analysis of 415 clones grouped into 133 operational taxonomic units that were sequence analyzed (>128 kbp), show that the rhizospheric bacterial community which evolved from the native soil community during the development of the root system was distinct from the soil community for all groups studied except for the Actinobacteria. Proteobacteria were enriched in the rhizosphere and dominated both in rhizosphere and soil. There was a higher than expected abundance of Betaproteobacteria in the native and in the planted PCB-polluted soil. The ISPα sequences retrieved indicate a high degree of catabolic and phylogenetic diversity. Many sequences clustered with biphenyl dioxygenase sequences from gram-negative bacteria. A distinct cluster that was composed of sequences from this study, some previously described environmental sequences, and a putative ISPα from Sphingomonas wittichii RW1 seems to contain greater diversity than the presently recognized toluene/biphenyl dioxygenase subfamily. Moreover, the rhizosphere selected for two ISPα sequences that accounted for almost 60% of the gene library and were very similar to sequences harbored by Pseudomonas species.
Two-Stage Single-Channel Audio Source Separation Using Deep Neural Networks

Most single channel audio source separation approaches produce separated sources accompanied by interference from other sources and other distortions. To tackle this problem, we propose to separate the sources in two stages. In the first stage, the sources are separated from the mixed signal. In the second stage, the interference between the separated sources and the distortions are reduced using deep neural networks (DNNs). We propose two methods that use DNNs to improve the quality of the separated sources in the second stage. In the first method, each separated source is improved individually using its own trained DNN, while in the second method all the separated sources are improved together using a single DNN. To further improve the quality of the separated sources, the DNNs in the second stage are trained discriminatively to further decrease the interference and the distortions of the separated sources. Our experimental results show that using two stages of separation improves the quality of the separated signals by decreasing the interference between the separated sources and distortions compared to separating the sources using a single stage of separation.
Taller women are at greater risk of recurrent venous thromboembolism: The Iowa Women's Health Study

Venous thromboembolism (VTE) recurs frequently. Greater height is associated with increased risk of incident VTE, but it is unclear whether height is related to risk of VTE recurrence. Recurrent VTE is associated with substantial morbidity and mortality, thus identifying individuals at greatest risk of experiencing a recurrent event, who may benefit from extended anticoagulant therapy, is vitally important. Using data from the Iowa Women,s Health Study, we explored whether greater height was associated with increased risk of VTE recurrence.Among 1,691 women who experienced an initial VTE event, 286(16.9%) experienced a recurrent event. Risk of recurrence was 76%(95% CI: 16% -186%) higher among women >66 inches [168 cm] tall relative to those ≤62 inches [158 cm] tall, after adjustment for age and waist circumference. Future research should evaluate whether body height improves clinical prediction of VTE recurrence risk.
Clostridium difficile–Associated Disease: An Emerging Threat to Patient Safety: Insights from the Society of Infectious Diseases Pharmacists

A formerly infrequently isolated strain of Clostridium difficile known as BI/NAP1 has resulted in geographically diverse outbreaks of C. difficile – associated disease. Such rapid dissemination and distribution of an outbreak strain of C. difficile are unprecedented, with many regions across North America, as well as several countries in Europe, being affected, all in such a short period of time. Also of note is that nontraditional hosts (e.g., otherwise healthy, noninstitutionalized persons residing in the community, some without antimicrobial exposure) have been reported to have severe disease. Data suggest that certain virulence characteristics may be responsible for more severe clinical presentations and poor outcomes. These factors (e.g., hypertoxin production, hypersporulation, antimicrobial resistance) possessed by a previously uncommon strain of C. difficile, in conjunction with particular host and environmental factors, may have precipitated the now widespread establishment of this pathogen. Antimicrobial intervention has traditionally been a mainstay of combating C. difficile – associated disease. Efforts to combat BI/NAP1 should include good antimicrobial stewardship in addition to effective infection control and environmental intervention.
Acute Slipped Capital Femoral Epiphysis. Review of Outcomes and Rates of Avascular Necrosis*†

One hundred and forty-nine patients (208 hips) were managed for slipped capital femoral epiphysis at The Hospital for Sick Children in Toronto from 1980 through 1990. We retrospectively reviewed the records of twenty-four patients (twenty-six hips) who had an acute slipped capital femoral epiphysis to evaluate the outcome of treatment and possible risk factors for avascular necrosis associated with this condition. The patients were evaluated with the Iowa hip-scoring system, a physical examination, and anteroposterior and lateral radiographs. The severity of degenerative joint disease was assessed on the radiographs with use of the system described by Boyer et al. Eighteen slips were classified as grade 1; seven, as grade 2; and one, as grade 3, according to the system of Southwick. Twenty-three hips were treated with in situ pinning and three, with reduction and pinning. The mean duration of follow-up was 5.9 years (range, 2.1 to 12.8 years). Poor Iowa hip scores and more severe degenerative changes were related to the development of avascular necrosis and to the severity of the slip. Avascular necrosis developed in four hips (15 per cent), two of which had had a reduction. Multiple logistic regression analysis, which included all 150 slips (both acute and chronic) for which there was adequate follow-up, showed that the rate of avascular necrosis was related to both the severity and the acute nature of the slip.
Effects of Topography on Seismic-Wave Propagation: An Example from Northern Taiwan

Topography influences ground motion and, in general, increases the amplitude of shaking at mountain tops and ridges, whereas valleys have reduced ground motions, as is observed from data recorded during and after real earthquakes and from numerical simulations. However, recent publications have focused mainly on the implications for ground motion in the mountainous regions themselves, whereas the impact on surrounding low-lying areas has received less attention. Here, we develop a new spectral-element mesh implementation to accommodate realistic topography as well as the complex shape of the Taipei sedimentary basin, which is located close to the Central Mountain Range in northern Taiwan. Spectral-element numerical simulations indicate that high-resolution topography can change peak ground velocity (PGV) values in mountainous areas by ±50% compared to a half-space response. We further demonstrate that large-scale topography can affect the propagation of seismic waves in nearby areas. For example, if a shallow earthquake occurs in the I-Lan region of Taiwan, the Central Mountain Range will significantly scatter the surface waves and will in turn reduce the amplitude of ground motion in the Taipei basin. However, as the hypocenter moves deeper, topography scatters body waves, which subsequently propagate as surface waves into the basin. These waves continue to interact with the basin and the surrounding mountains, finally resulting in complex amplification patterns in Taipei City, with an overall PGV increase of more than 50%. For realistic subduction zone earthquake scenarios off the northeast coast of Taiwan, the effects of topography on ground motion in both the mountains and the Taipei basin vary and depend on the rupture process. The complex interactions that can occur between mountains and surrounding areas, especially sedimentary basins, illustrate the fact that topography should be taken into account when assessing seismic hazard.
On the Dynamic Relationship between U.S. Farm Income and Macroeconomic Variables

This study examines the short- and long-run effects of changes in macroeconomic variables—agricultural commodity prices, interest rates and exchange rates—on the U.S. farm income. For this purpose, we adopt an autoregressive distributed lag (ARDL) approach to cointegration with quarterly data for 1989–2008. Results show that the exchange rate plays a crucial role in determining the long-ran behavior of U.S. farm income, but has little effect in the short-run. We also find that the commodity price and interest rate have been significant determinants of U.S. farm income in both the short- and long-run over the past two decades.
Firms, Contracts, and Trade Structure The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters

Roughly one-third of world trade is intraﬁrm trade. This paper starts by unveiling two systematic patterns in the volume of intraﬁrm trade. In a panel of industries, the share of intraﬁrm imports in total U. S. imports is signiﬁcantly higher, the higher the capital intensity of the exporting industry. In a cross section of countries the share of intraﬁrm imports in total U. S. imports is signiﬁcantly higher, the higher the capital-labor ratio of the exporting country. I then show that these patterns can be rationalized in a theoretical framework that combines a Grossman-Hart-Moore view of the ﬁrm with a Helpman-Krugman view of international trade. In particular, I develop an incomplete-contracting, property-rights model of the boundaries of the ﬁrm, which I then incorporate into a standard trade model with imperfect competition and product differentiation. The model pins down the boundaries of multinational ﬁrms as well as the international location of production, and it is shown to predict the patterns of intraﬁrm trade identiﬁed above. Econometric evidence reveals that the model is consistent with other qualitative and quantitative features of the data. of factor prices. This follows directly from the assumption of Cobb-Douglas technology and isolates the partial-equilibrium decision to integrate or outsource from any potential general-equilibrium feedbacks. This implied block-recursiveness is a use- ful property for solving the model sequentially, but the main results should be robust to more general speciﬁcations for technology.
Non-cooperative iris recognition: Issues and trends

To date, no research effort has produced a machine able to covertly recognize human beings. Contrary to popular belief, such automata are confined to science fiction, although it's not hard to anticipate the potential impact that they would have in the security and safety of modern societies (forensics and surveillance). Among the research programs that pursuit such type of biometric recognition, previous initiatives sought to acquire data from moving subjects, at long distances and under uncontrolled lighting conditions. This real-world scenario brings many challenges to the Pattern Recognition process, essentially due to poor quality of the acquired data. Several programs now seek to increase the robustness to noise of each phase of the recognition process (detection, segmentation, normalization, encoding and matching). This paper addresses the feasibility of such extremely ambitious type of biometric recognition, discusses the major issues behind the development of this technology and points some directions for further improvements.
Complex and dynamic expression of cadherins in the embryonic marmoset cerebral cortex

Cadherin is a cell adhesion molecule widely expressed in the nervous system. Previously, we analyzed the expression of nine classic cadherins (Cdh4, Cdh6, Cdh7, Cdh8, Cdh9, Cdh10, Cdh11, Cdh12, and Cdh20) and T‐cadherin (Cdh13) in the developing postnatal common marmoset (Callithrix jacchus) brain, and found differential expressions between mice and marmosets. In this study, to explore primate‐specific cadherin expression at the embryonic stage, we extensively analyzed the expression of these cadherins in the developing embryonic marmoset brain. Each cadherin showed differential spatial and temporal expression and exhibited temporally complicated expression. Furthermore, the expression of some cadherins differed from that in rodent brains, even at the embryonic stage. These results suggest the possibility that the differential expressions of diverse cadherins are involved in primate specific cortical development, from the prenatal to postnatal period.
A Study on Balancing Parallelism, Data Locality, and Recomputation in Existing PDE Solvers

Structured-grid PDE solver frameworks parallelize over boxes, which are rectangular domains of cells or faces in a structured grid. In the Chombo framework, the box sizes are typically 163 or 323, but larger box sizes such as 1283 would result in less surface area and therefore less storage, copying, and/or ghost cells communication overhead. Unfortunately, current on node parallelization schemes perform poorly for these larger box sizes. In this paper, we investigate 30 different inter-loop optimization strategies and demonstrate the parallel scaling advantages of some of these variants on NUMA multicore nodes. Shifted, fused, and communication-avoiding variants for 1283 boxes result in close to ideal parallel scaling and come close to matching the performance of 163 boxes on three different multicore systems for a benchmark that is a proxy for program idioms found in Computational Fluid Dynamic (CFD) codes.
Bayesian Estimation of Recent Migration Rates After a Spatial Expansion

Approximate Bayesian computation (ABC) is a highly flexible technique that allows the estimation of parameters under demographic models that are too complex to be handled by full-likelihood methods. We assess the utility of this method to estimate the parameters of range expansion in a two-dimensional stepping-stone model, using samples from either a single deme or multiple demes. A minor modification to the ABC procedure is introduced, which leads to an improvement in the accuracy of estimation. The method is then used to estimate the expansion time and migration rates for five natural common vole populations in Switzerland typed for a sex-linked marker and a nuclear marker. Estimates based on both markers suggest that expansion occurred <10,000 years ago, after the most recent glaciation, and that migration rates are strongly male biased.
Early Weight Bearing of Calcaneal Fractures Treated by Intraoperative 3D-Fluoroscopy and Locked-Screw Plate Fixation

Operative therapy of intraarticular fractures of the calcaneus is an established surgical standard. The aim is an accurate reduction of the fracture with reconstruction of Boehler’s angle, length, axis and subtalar joint surface. Intraoperative 3D-fluoroscopy with the Siremobil Iso-C 3D® mobile C-arm system is a valuable assistant for accurate reconstruction of these anatomical structures. Remaining incongruities can be recognized and corrected intraoperatively. The achieved reduction can be fixed by the advantages of an internal fixator (locked-screw plate interface). In the period of October 2002 until April 2007 we operated 136 patients with intraarticular fractures of the calcaneus by means of anatomical reduction, and internal plate fixator under intraoperative control of 3D-fluoroscopy. All patients were supplied with an orthesis after the operation which allowed weight bearing of 10 kg for 12 weeks for the patients operated between October 2002 and October 2004 (Group A). Transient local osteoporosis was observed in all X-Rays at follow-up after an average of 8,6 months. Therefore we changed our postoperative treatment plan for the patients operated between November 2004 and April 2007 (Group B). Weight bearing started with 20 KG after 6 weeks, was increased to 40 KG after 8 weeks and full weight bearing was allowed after 10 weeks for these patients. In no case a secondary dislocation of the fracture was seen. No bone graft was used. At follow up the average American Foot and Ankle Society Score (AOFAS) were 81 for Group_A, compared to 84 for Group B, treated with earlier weight bearing. Autologous bone graft was not necessary even if weight bearing was started after a period of six weeks postoperatively. The combination of 3D-fluoroscopy with locked internal fixation showed promising results. If the rate of patients developing subtalar arthrosis will decrease by this management will have to be shown in long term follow up.
PENGARUH MODAL INTELEKTUAL TERHADAP NILAI PERUSAHAAN DENGAN KINERJA KEUANGAN SEBAGAI VARIABEL INTERVENING (Studi Pada Perusahaan Sektor Keuangan yang Terdaftar Di Bursa Efek Indonesia Tahun 2010-2013)

Penelitian ini bertujuan untuk menguji pengaruh modal intelektual terhadap nilai perusahaan dengan kinerja keuangan sebagai variabel intervening. Modal inteletual diukur dengan value added intellectual coefficient (VAICTM). Kinerja keuangan diukur dengan rasio profitabilitas yaitu return on equity (ROE) dan return on assets (ROA) dan nilai perusahaan yang diukur dengan menggunakan price-to-book value (PBV). Populasi dalam penelitian ini adalah seluruh perusahaan sektor keuangan yang terdaftar di Bursa Efek Indonesia (BEI) tahun 2010-2013. Metode sampling yang digunakan adalah purposive sampling. Berdasarkan kriteria tersebut maka sebanyak 24 perusahaan terpilih sebagai sampel dalam. Teknik yang digunakan untuk menguji hipotesis adalah regresi sederhana dan path analysis. Hasil penelitian ini menunjukkan bahwa modal intelektual berpengaruh positif terhadap nilai perusahaan, modal intelektual berpengaruh positif terhadap kinerja keuangan perusahaan (ROE dan ROA) akan tetapi kinerja keuangan perusahaan (ROE dan ROA) tidak mampu memediasi pengaruh modal intelektual terhadap nilai perusahaan.
Ground-state emission from a singleInAs∕GaAsself-assembled quantum dot structure in ultrahigh magnetic fields

We report on the magnetic field dispersion of the exciton spin-splitting and diamagnetic shift in single InAs/GaAs quantum dots (QDs) and dot molecules (QDMs) up to $B$ = 28 T. Only for systems with strong geometric confinement, the dispersions can be well described by simple field dependencies, while for dots with weaker confinement considerable deviations are observed: most importantly, in the high field limit the spin-splitting shows a non-linear dependence on $B$, clearly indicating light hole admixtures to the valence band ground state.