Miracle-dz/UniFAR-FTUs huggingface dataset:
REQUEST: A Query Language for Customizing Recommendations

Initially popularized by Amazon.com, recommendation technologies have become widespread over the past several years. However, the types of recommendations available to the users in these recommender systems are typically determined by the vendor and therefore are not flexible. In this paper, we address this problem by presenting the recommendation query language REQUEST that allows users to customize recommendations by formulating them in the ways satisfying personalized needs of the users. REQUEST is based on the multidimensional model of recommender systems that supports additional contextual dimensions besides traditional User and Item dimensions and also OLAP-type aggregation and filtering capabilities. This paper also presents the recommendation algebra RA, shows how REQUEST recommendations can be mapped into this algebra, and analyzes the expressive power of the query language and the algebra. This paper also shows how users can customize their recommendations using REQUEST queries through a series of examples.
Non-Cooperative Multi-Radio Channel Allocation in Wireless Networks

Channel allocation was extensively studied in the framework of cellular networks. But the emergence of new system concepts, such as cognitive radio systems, has brought this topic into the focus of research again. In this paper, we study in detail the problem of competitive multi-radio multi-channel allocation in wireless networks. We study the existence of Nash equilibria in a static game and we conclude that, in spite of the non-cooperative behavior of such devices, their channel allocation results in a load-balancing solution. In addition, we consider the fairness properties of the resulting channel allocations and their resistance to the possible coalitions of a subset of players. Finally, we present three algorithms that achieve a load-balancing Nash equilibrium channel allocation; each of them using a different set of available information.
Centralités urbaines et concentrations de commerces

Le phenomene urbain est souvent defini comme une concentration d'activites. Une de ces activites, une de ces fonctions, est peut-etre un reflet de la dynamique urbaine, voire un moteur de la regeneration urbaine. La fonction commerciale, particulierement le commerce de detail (y compris les services marchands), pourrait jouer ce role dans la ville. La repartition intra-urbaine du commerce repond a des logiques de concentration, qu'il est interessant d'etudier pour degager des lieux plus centraux que d'autres. L'auteur appelle "concentrations de commerces" ces espaces privilegies. Peuvent-elles etre importantes pour saisir les centralites urbaines? Cette recherche vous propose d'etudier cela en utilisant trois "agglomerations-temoins". L'auteur a retenu trois agglomerations francaises de tailles differentes (de 200 000 a plus d'un million d'habitants), mais aussi de configurations differentes : Lille-Roubaix-Tourcoing, Nancy, Reims. L'approche de l'appareil marchand de chacune de ces agglomerations permet la bonne illustration d'une approche theorique. Pour cela, cette recherche propose une mesure de la centralite marchande. Cela implique une bonne evaluation d'elements quantitatifs et qualitatifs. Cela suppose aussi d'envisager les difficultes theoriques et pratiques de la diffusion du potentiel marchand. L'objectif est de connaitre quelle place donner a l'urbanisme commercial dans l'amenagement urbain. la cristallisation marchande est-elle un bon outil de regeneration urbaine ? Quelles modalites d'implantation et quels criteres de localisation doivent etre respectes par les concentrations de commerces pour qu'elles participent avec coherence a une politique globale d'amenagement ? De fait, il est imperatif, comme dans toute operation d'amenagement, d'etre attentif aux elements formels et au contexte autant qu'a la fonction injectee.
Initial Experience with the Gore® Acuseal Graft for Prosthetic Vascular Access

Purpose The purpose of this study is to report the short-term results of the Gore® Acuseal graft for prosthetic vascular access (pVA) in patients with end-stage renal disease on hemodialysis. Methods Between October 2011 and October 2013, all the consecutive patients who underwent implantation of a new expanded Polytetrafluoroethylene (ePTFE) tri-layer graft were included in the study. Primary and secondary patency rate, time to first cannulation, and complications were recorded. Follow-up was performed at 1, 3, 6, and 12 months after the intervention. Results Thirty ePTFE tri-layer heparin bonded grafts were implanted in 18 males and 12 females. The graft configuration was radial-basilic (n=12, 40%), brachial-basilic (n=10, 33.3%), femoro-femoral (n=3, 10.0%), radial-cephalic (n=2, 6.7%), radial-antecubital forearm (n=2, 6.7%), and brachial-axillary (n=1, 3.3%). No patient was lost during a mean follow-up time of 6.3±5.9 months (range, 1-24; median, 5). Mean time to first cannulation was 2.4±1.2 days (range, 1-15). Primary functional patency rate was 68.0% ± 10 at 6 and 12 months. Secondary patency rate was 93.3% ± 6 at 6 and 12 months. Pseudoaneurysm, bleeding, seroma, or graft infection was never observed. Conclusions In our experience, the Gore® Acuseal graft was useful and safe. Early cannulation was always performed, and structural complications did not occur. Primary functional and secondary patency rate are satisfactory in the short term.
Awareness, diagnosis, and treatment of depression

OBJECTIVES: To review recent findings on the epidemiology, burden, diagnosis, comorbidity, and treatment of depression, particularly in general medical settings; to delineate barriers to the recognition, diagnosis, and optimal management of depression in general medical settings; and to summarize efforts under way to reduce some of these barriers.DESIGN: Medline serches were conducted to identify scientific articles published during the previous 10 years addressing depression in general medical settings and epidemiology, co-occurring conditions, diagnosis, costs, outcomes, and treatment. Articles relevant to the objective were selected and summarized.CONCLUSIONS: Depression occurs commonly, causing suffering, functional impairment, increased risk of suicide, added health care costs, and productivity losses. Effective treatments are available both when depression occurs alone and when it co-occurs with general medical illnesses. Many cases of depression seen in general medical settings are suitable for treatment within those settings. About half of all cases of depression in primary care settings are recognized, although subsequent treatments often fall short of existing practice guidelines. When treatments of documented efficacy are used, short-term patient outcomes are generally good. Barriers to diagnosing and treating depression include stigma; patient somatization and denial; physician knowledge and skill deficits; limited time; lack of availability of providers and treatments; limitations of third-party coverage; and restrictions on specialist, drug, and psychotherapeutic care. Public and professional education efforts, destigmatization, and improvement in access to mental health care are all needed to reduce these barriers.
Gene and Metabolite Regulatory Network Analysis of Early Developing Fruit Tissues Highlights New Candidate Genes for the Control of Tomato Fruit Composition and Development1[C][W][OA]

Variations in early fruit development and composition may have major impacts on the taste and the overall quality of ripe tomato (Solanum lycopersicum) fruit. To get insights into the networks involved in these coordinated processes and to identify key regulatory genes, we explored the transcriptional and metabolic changes in expanding tomato fruit tissues using multivariate analysis and gene-metabolite correlation networks. To this end, we demonstrated and took advantage of the existence of clear structural and compositional differences between expanding mesocarp and locular tissue during fruit development (12–35 d postanthesis). Transcriptome and metabolome analyses were carried out with tomato microarrays and analytical methods including proton nuclear magnetic resonance and liquid chromatography-mass spectrometry, respectively. Pairwise comparisons of metabolite contents and gene expression profiles detected up to 37 direct gene-metabolite correlations involving regulatory genes (e.g. the correlations between glutamine, bZIP, and MYB transcription factors). Correlation network analyses revealed the existence of major hub genes correlated with 10 or more regulatory transcripts and embedded in a large regulatory network. This approach proved to be a valuable strategy for identifying specific subsets of genes implicated in key processes of fruit development and metabolism, which are therefore potential targets for genetic improvement of tomato fruit quality.
Cement Dust Exposure and Perturbations in Some Elements and Lung and Liver Functions of Cement Factory Workers

Background. Cement dust inhalation is associated with deleterious health effects. The impact of cement dust exposure on the peak expiratory flow rate (PEFR), liver function, and some serum elements in workers and residents near cement factory were assessed. Methods. Two hundred and ten subjects (50 workers, 60 residents, and 100 controls) aged 18–60 years were studied. PEFR, liver function {aspartate and alanine transaminases (AST and ALT) and total and conjugated bilirubin (TB and CB)}, and serum elements {lead (Pb), copper (Cu), manganese (Mn), iron (Fe), cadmium (Cd), selenium (Se), chromium (Cr), zinc (Zn), and arsenic (As)} were determined using peak flow meter, colorimetry, and atomic absorption spectrometry, respectively. Data were analysed using ANOVA and correlation at p = 0.05. Results. The ALT, TB, CB, Pb, As, Cd, Cr, Se, Mn, and Cu were significantly higher and PEFR, Fe, and Zn lower in workers and residents compared to controls (p < 0.05). Higher levels of ALT, AST, and Fe and lower levels of Pb, Cd, Cr, Se, Mn, and Cu were seen in cement workers compared to residents (p < 0.05). Negative correlation was observed between duration of exposure and PEFR (r = −0.416, p = 0.016) in cement workers. Conclusions. Cement dust inhalation may be associated with alterations in serum elements levels and lung and liver functions while long term exposure lowers peak expiratory flow rate.
Bounce, Duck, Pogo, Dive

A person’s presence in an environment is often determined by physical action. Emotional presence can be delivered by physical action as well. A person’s movement can convey a specific meaning to other people without the use of overt linguistic expression. Gesture is one of various types of interactions that people use in a typical social setting. A growing volume of work seen in art installations employs the use of gestures to express meaning and presence. The work presented here is a sample of how movement can be used to manipulate people’s physical and emotional expression in an interactive art installation. 1. MOTIVATION A person’s presence in an environment is often determined by physical actions. If a disruptive child is jumping up and down in a classroom where everyone else is quietly seated, that child’s presence in the room compared to other children in the room is more distinct. In turn, a person at a basketball game sitting calmly in a seat while all the surrounding persons are standing up and cheering also has a more distinct presence in comparison. In the previous examples, physical actions were used to determine the physical presence of a person, but physical actions convey emotional presence as well. The disruptive child jumping up and down could be extremely excited about the successful completion of a task. This emotional presence of excitement is passed along to others in the classroom by the physical act of repetitive jumping along with other factors such as facial expression and vocal sounds. Our primary motivation for this artwork is this idea that physical actions affect the various forms of person’s presence such as physical or emotional presence. 2. RELATED WORKS
Exploring non-speech auditory feedback at an interactive multi-user tabletop

We present two experiments on the use of non-speech audio at an interactive multi-touch, multi-user tabletop display. We first investigate the use of two categories of reactive auditory feedback: affirmative sounds that confirm user actions and negative sounds that indicate errors. Our results show that affirmative auditory feedback may improve one's awareness of group activity at the expense of one's awareness of his or her own activity. Negative auditory feedback may also improve group awareness, but simultaneously increase the perception of errors for both the group and the individual. In our second experiment, we compare two methods of associating sounds to individuals in a co-located environment. Specifically, we compare localized sound, where each user has his or her own speaker, to coded sound, where users share one speaker, but the waveform of the sounds are varied so that a different sound is played for each user. Results of this experiment reinforce the presence of tension between group awareness and individual focus found in the first experiment. User feedback suggests that users are more easily able to identify who caused a sound when either localized or coded sound is used, but that they are also more able to focus on their individual work. Our experiments show that, in general, auditory feedback can be used in co-located collaborative applications to support either individual work or group awareness, but not both simultaneously, depending on how it is presented.
Identifying the Character by Applying PCA Method using Matlab

Optical character recognition is getting more and more useful in daily life for various purposes. The aim of the paper is to find the number and English alphabets in the symbol of times new roman, arial, arial block size of 72, 48.Many researches have been done on many types of characters by using different approaches. In this recognition system was implemented by using of principal component analysis (PCA) algorithm. This algorithm is based on an Eigen value and Euclidean distance. PCA is practical and standard statistical tool in modern data analysis that has found application in different areas such as face recognition, image compression, and neuroscience.
Low phase noise X-band push-push oscillator with frequency divider

A MMIC Colpitts oscillator in push-push configuration with integrated frequency divider using InGaP/GaAs HBTs is presented. The output is taken from the second harmonic port while the fundamental signal is fed to a frequency divider by two thus providing a reference signal at one quarter of the output frequency. The MMIC VCO reaches state-of-the-art phase-noise performance in X-band down to -120dBc/Hz at 1MHz offset frequency at high output power and a tuning range of 4%.
Polyp measurement reliability, accuracy, and discrepancy: optical colonoscopy versus CT colonography with pig colonic specimens.

PURPOSE To prospectively evaluate the reliability and accuracy of optical colonoscopy and computed tomographic (CT) colonography in polyp measurement, by using direct measurement as the reference standard, and to understand the basis for measurement discrepancy between both modalities. MATERIALS AND METHODS Eighty-six simulated polyps that ranged from 3 to 15 mm were constructed by using pig colons obtained from an abattoir. Approval of the animal care and use committee for the study was not required. CT colonographic measurement was performed by two independent radiologists by using two-dimensional (2D) optimized multiplanar reformatted planes and three-dimensional (3D) endoluminal views. Optical colonoscopic measurement was performed by two independent gastroenterologists by using open biopsy forceps. Interobserver agreement, measurement error, measurement discrepancy defined as the result of subtracting the optical colonoscopic measurement from the CT colonographic measurement, and false-mismatch (ie, designation of matched polyps as mismatched between both modalities) rates according to different matching criteria were analyzed. RESULTS Intraclass correlation coefficients were 0.879 (95% confidence interval: 0.780, 0.930) for optical colonoscopy, 0.979 (95% confidence interval: 0.956, 0.989) for 2D CT colonography, and 0.985 (95% confidence interval: 0.976, 0.990) for 3D CT colonography. The mean standardized polyp size +/- standard deviation for each observer was 76.3% +/- 14.7 and 85.3% +/- 18.8 for optical colonoscopy, 104.6% +/- 11.6 and 101.6% +/- 10.1 for 2D CT colonography, and 114% +/- 12.4 and 113.4% +/- 13.2 for 3D CT colonography. These values indicated that there was a statistically significant difference among the methods (P<.001). Measurement discrepancy was not proportional to polyp size. A percentage-of-error criterion showed increasing false-mismatch rates with decreasing polyp size, whereas a fixed margin-of-error criterion resulted in more uniform false-mismatch rates across polyp size. CONCLUSION CT colonography is more reliable and accurate than optical colonoscopy for polyp measurement. A fixed margin-of-error criterion is better than a percentage-of-error criterion for polyp matching between CT colonography and optical colonoscopy with open biopsy forceps.
Relevance-index size tradeoff in contextual advertising

In Contextual advertising, textual ads relevant to the content in a webpage are embedded in the page. Content keywords are extracted offline by crawling webpages and then stored in an index for fast serving. Given a page, ad selection involves index lookup, computing similarity between the keywords of the page and those of candidate ads and returning the top-k scoring ads. In this approach, there is a tradeoff between relevance and index size where better relevance can be achieved if there are no limits on the index size. However, the assumption of unlimited index size is not practical due to the large number of pages on the Web and stringent requirements on the serving latency. Secondly, page visits on the web follows power-law distribution where a significant proportion of the pages are visited infrequently, also called the tail pages. Indexing tail pages is not efficient given that these pages are accessed very infrequently. We propose a novel mechanism to mitigate these problems in the same framework. The basic idea is to index the same keyword vector for a set of similar pages. The scheme involves learning a website specific hierarchy from (page, URL) pairs of the website. Next, keywords are populated on the nodes via bottom-up traversal over the hierarchy. We evaluate our approach on a human labeled dataset where our approach has higher nDCG compared to a recent approach even though the index size of our approach is 7 times less than index size of the recent approach.
Developing a movement algorithm for a wheeled robot moving over a rough terrain

This paper presents control algorithm of the wheeled robot moving along a given route on a rough terrain. The robot operates in the autonomous mode. Analysis of the surrounding space is carried out by vision systems, ultrasonic sensor, gyroscope and GPS module. Data which have been taken from sensors, are used by built-in processor for building a path detour obstacles and returning to the originally specified route, as well as for creating the local map of the area.
Parent-School Involvement during the Early Adolescent Years

Adolescence is one of the most fascinating periods of development. Other than infancy, there is no other time in life when the individual experiences such rapid and dramatic change. This rapid change opens the door for both positive and negative consequences. On the one hand, there is growing concern about the fate of our adolescents. A myriad of reports have emerged in the last few years pointing to the problems associated with this developmental period-increasing incidence of school failure, growing dropout rates, especially in the large urban school districts, increasing involvement of youth in delinquent and very dangerous activities, increasing violence among youth, and increasing incidence of other indicators of poor adjustment. The recent report Turning Points, for example, concluded that at least one-quarter of American adolescents are already in serious danger while another quarter are at risk for major problems. ’ On the other hand, adolescence is also the time when many youth begin a successful and exciting transition from childhood into adulthood. It is a time when children blossom into interesting and healthy young adults if they are provided with supportive and developmentally appropriate social contexts in which to explore themselves and the world around them. Many reports have suggested that schools could play a critical role in helping to keep (or to put) adolescents on a healthy, rather than risky, developmental trajectory. Adolescents spend more waking time in school than anywhere else, including with their families. They also need close relationships with nonfamilial adults to help them sort through independence and identity issues, especially since achieving increasing independence from one’s parents is a primary task of this developmental period. In our society, teachers are likely to be the primary nonfamilial adults in many adolescents’ lives. Not surprisingly, then, evidence from a variety of disciplines indicates that teachers can have a major positive impact and may even play a protective role in the lives of adolescents. This is particularly true if they work in concert with
Transforming growth factorβ1 increases the number of apoptotic bodies and decreases intracellular pH in isolated periportal and perivenular rat hepatocytes

Transforming growth factor beta 1 (TGFβ1) is involved in promoting cell death by apoptosis in the liver, whereas the activation of Na+/H+ exchanger has been related to cell proliferation. The aim of this study was to gain information on the effects of TGFβ1 on intracellular pH and Na+H+ exchange activity in isolated periportal (PP) and perivenular (PV) rat hepatocytes using the pH‐sensitive dye BCECF in a perfused subconfluent hepatocyte monolayer. Steady‐state intracellular pH (pHi) in a bicarbonate‐free solution (HEPES) were 7.17 ± 0.031 in PP and 7.15 ± 0.041 in PV cells. Treatment with TGFβ1 (120 pmol/L) for 7 hours increased the number of apoptotic bodies by 25% and 38%, and decreased steady‐state pHi to 7.11 ± 0.018 (P = .05) and to 7.07 ± 0.021 (P ± .02), respectively, in PP and PV hepatocytes. In HEPES, cells recovered from an acid load, extruding protons at a rate (JH) of 4.85 ± 1.01 mmol/L/min in PP cells and of 4.91 ± 0.99 mmol/L/min in PV hepatocytes. This recovery appeared amiloride inhibitable (1 mmol/L). Culture with TGFβ1 for 7 hours induced (in HEPES) a decrease of pHi recovery rate from an acid load more in PV (by 46%) than in PP hepatocytes (by 35%, P ± .05). Acute administration of epidermal growth factor (EGF) (10 to 100 ng/mL) induced an increase in Na+/H+ exchange activity by 32% and 27%, respectively, in PP and PV cells compared with controls. In contrast, in cells cultured for 7 hours with 120 pmol/L TGFβ1, the acute administration of EGF slightly increased Na+/H+ exchange activity (by 18%, P ± .05) only in PP cells. This study demonstrates that pHi and Na+/H+ exchange activity are decreased by TGFβ1, which increases the number of apoptotic bodies in periportal and perivenular rat hepatocyte primary cultures. (Hepatology 1995; 22:1488–1498).
A Deployment Algorithm to Achieve both Connectivity and Coverage in Grid Sensor Networks

In this paper, we propose an algorithm to achieve both connectivity and coverage for multiple target points in grid sensor networks. First we deal with the local targets block, then we use the least sensors to make all the sensors connected. This algorithm has the O(n) running time complexity and its result is proved closed to the optimal result.