Miracle-dz/UniFAR-FTUs huggingface dataset:
Audio and Video Retrieval based on HCT

Structure and construction rule of Hierarchical Cellular Tree (HCT) is briefly introduced firstly; the algorithm of HCT is complemented and improved secondly; finally, the idea of minimum distance is proposed and made as be feature distance function in audio retrieval and histogram intersection and Euclidean distance is made as feature distance function in video retrieval. The experimental results show that: the recall of this method can reach 78%, which is much better than some common used distance formula in speaker retrieval; the number of cells gotten nearly equals speaker’s number; saving retrieval time comparison with ergodic retrieval; in the seven kinds of audio sound retrieval, average recall is 65.08%, applause and laugh can all be retrieved, while the recall of cough and snap by camera is less than 30%. In video retrieval, the recall of using texture is 8.3% than using color histogram, which reaches 75%.
Product Variety and Competitive Pricing in Consumer Goods Markets

Daniel Klapper is Professor of Marketing at Johann Wolfgang Goethe-Universität Frankfurt, Mertonstr. 17, D-60054 Frankfurt am Main, Germany, Phone: +49-69-798-23161, Fax: +49-69-798-23167, E-Mail: dklapper@wiwi.unifrankfurt. de Toker Doganoglu is Assistant Professor at Ludwig-Maximilians-Universität München, Seminar für Ökonometrie, Finanzökonometrie und Statistik, Institut für Statistik, Akademiestr. 1/I, D-80799 München, Germany, Phone: +49-89-2180-3224, Fax: +49-89-2180-5044, E-Mail: toker@athene.stat.unimuenchen.de Product Variety and Competitive Pricing in Consumer Goods Markets
Content-Based Tweets Clustering and Analysis

— Event-based social network analysis is an important task for monitoring the potential threats to the security of a nation and identifying various trends that are popular among the people. In this paper, we propose content-based tweets clustering and analysis method, which aims to cluster tweets based on the events represented by them. The proposed method starts with modeling tweets into a similarity graph (aka social network), in which each node represent a tweet and an edge connecting a node-pair represents the degree of similarity between the tweets represented by them. For social graph generation, each node is represented as a feature vector which is generated using Latent Dirichlet Allocation (LDA) from the respective tweet and edge weight is determined as the similarity between the nodes. Finally, the generated social graph is partitioned into a number of clusters (sub-graphs) using Markov Clustering (MCL) algorithm, where each sub-graph represent an event. We have generated a data set of 5000 tweets related to four different events – Uri attacks, Delhi assembly election, Union budget 2015, and Israel-Gaza conflict to evaluate the proposed method. The experimental results are encouraging, showing high accuracy in grouping tweets based on their contents. We have also performed a comparative analysis of the Cosine similarity and Euclidean distance based similarity graph generation, and it is found that the Cosine similarity yields better results than the Euclidian distance measure.
Antioxidative and Antihypertensive Activities of Selected Malaysian ulam (salad), Vegetables and Herbs

This study was conducted to investigate antioxidative and antihypertensive activities of selected Malaysian ulam (salad) , vegetables and herbs. The aqueous extract of selected ulam (salad) , vegetables and herbs were analysed for total phenolic content (TPC), antioxidant activities (2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay, 2,2-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid (ABTS) radical cation scavenging assay and ferric reducing antioxidant power assay (FRAP) and antihypertension activity (angiotensin converting enzyme (ACE) inhibitory activity assay). TPC analysis showed that Polygonum minus contains significantly (p<0.05) highest phenolic compound at 48.23 ± 0.17 mg GAE/g as compared to other plants. DPPH analysis showed that P. minus had significantly (p<0.05) highest percentage of radical scavenging activity at 79.09 ± 0.10% as compared to other plants. ABTS analysis showed that Sauropus androgynus had significantly (p<0.05) highest percentage of radical cation scavenging activity at 95.10 ± 0.26% as compared to other plants. FRAP analysis showed that P. minus had significantly (p<0.05) highest ferric reducing power at 63.61 ± 0.73 mmol Fe 2+ /g as compared to other samples. Murraya koenigii had the highest percentage of ACE inhibitory activity (91.20 ± 4.15%). Correlation analysis showed positive and significant (p<0.01) correlation between TPC and FRAP (r = 0.956), TPC and ABTS (r = 0.635), TPC and DPPH (r = 0.630) and TPC and ACE inhibitors (r = 0.645). This shows that Malaysian tropical plants especially P. minus are potential source of natural antioxidant and antihypertensive agents.
Zella et les routes d'Egypte

L'exploration de la region de Bu Njem (limite de la zone des oueds, cultivee, et du monde des pistes) necessite la connaissance des itineraires antiques qui la desservaient. L'A. a participe a une exploration de la "route des oasis" venant d'Egypte et aboutissant a Zella, en Libye (dec. 1968). Les monuments (fortins, etc.) et les tessons indiquent que les Romains ont controle et fortifie toute la region au III s. apr. J.-C.
Effects of Celecoxib or Omega-3 Fatty Acids Alone and in Combination with Risperidone on the Behavior and Brain Biochemistry Using Amphetamine-Induced Model of Schizophrenia in Rats

Study background: The implication of oxidative stress and neuro-inflammation in the pathogenesis of schizophrenia has been elucidated. Antipsychotics have limited effectiveness against negative symptoms of schizophrenia and are associated with adverse effects. The use of celecoxib or omega-3 in schizophrenia may have beneficial effects. This study was to evaluate the possible efficacies of celecoxib, omega-3 or the combination of celecoxib+risperidone and omeg-3+risperidone compared to risperidone on behavior and brain biochemistry in rats. Method: An amphetamine-induced model of schizophrenia in adult male rats was used to evaluate the effects of celecoxib, omega-3, celecoxib+risperidone and omega-3+risperidone on the behavior of animals and on brain lipid peroxidation or tumor necrosis factor-alpha. Results In the water maze task, celecoxib, omega-3, celecoxib+risperidone, omega-3+risperidone significantly decreased the latency time and increased the swimming speeds compared to amphetamine-treated group. celecoxib, omega-3, celecoxib+risperidone, omega-3+risperidone also significantly reversed the decreased spontaneous alternation induced by amphetamine in the Y-maze task. In the social interaction task, groups treated with celecoxib, omega-3, celecoxib+risperidone, omega-3+risperidone spent less time to recognize foreign animals than animals in the amphetamine-treated group. Increased brain MDA and TNF-α level due to amphetamine were significantly reduced in groups treated with celecoxib+risperidone or omega-3+risperidone. Conclusion: Celecoxib or omega-3 can attenuate amphetamine- induced behavioral impairment. These effects may be associated with their ability to decrease lipid peroxidation and cytokine release. Celecoxib or omega-3 may be promising candidates for treating such disease.
Learning Support Teachers’ Views on the Implementation of Inclusive Education in the Foundation Phase in Gauteng, South Africa

Abstract The policy of Inclusive Education (IE) in White Paper 6 (2001) acknowledges that all children can learn with support, and this paper emanates from research into the experiences of learning support teachers (LSTs) in supporting Foundation Phase teachers in implementing IE in Gauteng Province, South Africa. It is envisaged that the implementation of IE in South African schools would require well-planned district as well as school level support services, more than just accepting learners with different learning needs in mainstream classrooms. Many teachers have not had the benefit of being trained to teach learners who experience barriers to learning, hence most find it difficult. Although specialist teachers in the form of LSTs have been employed in the Foundation Phase to fill that gap and assist classroom teachers, the learners may not be receiving the assistance that they are hoping for. Based on an assumption that the failings may largely be systemic, the authors used Bronferbrenner’s ecological systems theory and a qualitative research design to examine the implementation of IE in selected schools, with seven LSTs being interviewed and observed, while documents pertaining to the support rendered were analyzed. Analysis employed Creswell’s method. Findings highlighted factors affecting implementation of IE, which include inadequate district support, socio-cultural issues, classroom and management factors, lack of resources and inadequate collaboration between the stakeholders. The study makes recommendations and suggests further areas of research.
Pharmacologyonline 2 : 219-234 ( 2011 )

Our aim of the present study was to evaluate the anti-oxidant activity and determination of the phenolic content in Bougainvillea glabra ‘Snow White’. The anti-oxidant activity was evaluated against DPPH free radical, ABTS free radical scavenging and superoxide scavenging using BHT (Butylated Hydroxy Toluene) as a standard. The phonolic content of leaves extracts was determined using Folin-coicalteau reagent.The anti-oxidant activity expressed as IC50 value and values of hydroalcoholic (50:50) and acetone extracts were 443.55 and 570.83 μg/ml respectively for DPPH free radical scavenging, 220.086 and 181.50 μg/ml respectively, for ABTS free radical scavenging and 155.96 and 173.83 181.50 μg/ml respectively for NBT superoxide scavenging activity. Total phenolic content was expressed as tannic acid equivalent and 1.437 and 1.284 mg/0.005 g of dried extract of hydroalcoholic (50:50) and acetone extract respectively. The correlation between total phenolic content and anti-oxidant activity was determined to be R 2 = 0.9362. The results were analysed statistically by regression method. The findings of the study suggested that Acetone and hydroalcoholic extract (50:50) of Bougainvillea glabra ‘Snow White’ was shown effective antioxidant activity. The greater amount of phenolic component leads to the stronger antioxidant activity.
Decadal reanalysis of biogeochemical indicators and fluxes in the North West European shelf‐sea ecosystem

This paper presents the first decadal reanalysis simulation of the biogeochemistry of the North West European shelf, along with a full evaluation of its skill, confidence, and value. An error-characterized satellite product for chlorophyll was assimilated into a physical-biogeochemical model of the North East Atlantic, applying a localized Ensemble Kalman filter. The results showed that the reanalysis improved the model simulation of assimilated chlorophyll in 60% of the study region. Model validation metrics showed that the reanalysis had skill in matching a large data set of in situ observations for 10 ecosystem variables. Spearman rank correlations were significant and higher than 0.7 for physical-chemical variables (temperature, salinity, and oxygen), ∼0.6 for chlorophyll and nutrients (phosphate, nitrate, and silicate), and significant, though lower in value, for partial pressure of dissolved carbon dioxide (∼0.4). The reanalysis captured the magnitude of pH and ammonia observations, but not their variability. The value of the reanalysis for assessing environmental status and variability has been exemplified in two case studies. The first shows that between 325,000 and 365,000 km2 of shelf bottom waters were vulnerable to oxygen deficiency potentially threatening bottom fishes and benthos. The second application confirmed that the shelf is a net sink of atmospheric carbon dioxide, but the total amount of uptake varies between 36 and 46 Tg C yr−1 at a 90% confidence level. These results indicate that the reanalysis output data set can inform the management of the North West European shelf ecosystem, in relation to eutrophication, fishery, and variability of the carbon cycle.
Corporate diversification on firm's financial performance: An empirical analysis of select FMCG companies in India

The present study made an attempt to understand motives of diversification and impact of diversification on financial health of diversified companies. For the purpose of analysis the study focused on the listed conglomerates in the Fast Moving Consumer Goods (FMCG) sector included in NSE Nifty FMCG Index for the purpose of measuring Financial Health and further the diversification classes. The principal data consisted of the Ratios and values of turnover from each firm’s business segments, as well as firm equity capital, the profit for each year during the period considered. Using the Rumelts Classification, the companies have been categorized into three Highly diversified, Moderately diversified and Undiversified and made the comparisons between the performance parameters easy. The analysis revealed that the overall financial health of the companies was satisfactory. In other words, diversification has led to a sound financial performance of the companies. It is clear that all the companies under study have not performed equally well on all the ratios examined. However, some have performed consistently well on most fronts, while others had revealed uniformly mediocre results comparatively. Though it is difficult to strictly state that diversification has led to good performance, yet it can be emphasized that the diversified companies studied have performed well. It is possible that factors other than diversification could have contributed to this success.
SMOKE MOVEMENT IN ATRIUM BUILDINGS

A computational fluid dynamics (CFD) model based on PHOENICS has been used to evaluate the distribution of fire-induced air flow, temperature and smoke concentration in an atrium. Two numerical experiments carried out in two atria with similar size, fan locations and fire type, but of different height have been examined. A physical model in an atrium with different size and fan locations, but of the same fire type has also been studied. In the first numerical experiment where the fire source was located at the base of a 30 m high atrium, it was found that smoke was extracted effectively by the extraction system. In the second numerical experiment where the fire source was located at the base of a 60 m high atrium, smoke was not extracted effectively by the extraction system. Stratification was observed at 240 s. In the physical model with the fire source located at the base of a 50 m high atrium, smoke was trapped at the ceiling of the atrium and moved into the shops of the same level. The extraction fans located at the smoke reservoir were not able to extract the smoke in the area effectively. The results of the simulations highlight the effect of atrium height and locations of exhaust fans on the smoke movement in atrium buildings.
Reproductive Tract Infections among Female Sex Workers in Dar es Salaam, Tanzania

Background: Reproductive Tract Infections are among the world’s major diseases associated with HIV. Female Sex Workers are at increased risk of reproductive tract infections and HIV because of the nature of their work. This study aims to estimate the prevalence of reproductive tract infections, HIV and co-infections among female sex workers. Methods: The study was conducted in Dar es Salaam (capital and largest city of Tanzania). Female sex workers were recruited using the Respondent Driven Sampling. From female sex workers, we collected data on background characteristics, sexual and behavioral practices and results from biological samples. Main analysis was univariate to get point estimates and 95% confidence intervals (CI) were adjusted for social network size and recruitment patterns using RDS-Analyst (Respondent Driven Sampling Analysis) computer software. Results: We recruited 537 female sex workers; with almost three quarters aged less than 35 years. More than half of female sex workers started selling sex at less than 25 years of age. The estimated vaginal and anal sex condom use was about 85% and over 75% respectively. Alcohol and non-injection drug use was reported high, 68% and 61% respectively. The prevalence of any reproductive tract infections among FSWs was 64%, HIV 32%, Bacterial vaginosis 20% and gonorrhea 10%. Also, the prevalence of double and triple co-infections was observed in 20% and 5% of female sex workers respectively. Conclusions: The prevalence of reproductive tract infections and HIV among female sex workers in Dar es Salaam are very high. These results imply considering strategies targeting female sex workers population with a routine health education, mobile reproductive tract infections clinics tailored together with HIV and reproductive tract infections interventions.
The use of methylene blue test for predicting swell parameters of natural clay soils

Swell behavior of clayey soils is referred to as a hidden disaster causing a great deal of damage in light hydraulic structures. In this context, it is of key importance to make a preliminary soil research and to identify soils of this nature through lab tests in order to adopt the correct design strategy. It is extremely important to have determined the swell parameters (swell percentage and swell pressure) in designing light hydraulic structures on swelling soil. In our country, these types of problems that are experienced in light hydraulic structures have been observed generally in construction works of irrigation channels carried out within the framework of Southeastern Anatolia Project. In this study, we examine the facts based on the methylene blue stain test data used in predicting swell parameters of Harran clay soils. Within the frame of the study, methylene blue tests have been carried out besides identification tests; working on undisturbed samples taken from thirty three different points by means of drilling, in an area where irrigation channels are laid intensively. Depending on relevant swell parameters, models developed are based on multiple regression analysis for practical use. In the models developed depending on dry density of soil and methylene blue value, R2 values are found to be R2 = 0.93 and R2 = 0.85 for swell percentage and swell pressure, respectively. In view of the fact that the tests that measure swell parameters are long and costly, these models would be very useful to be able to obtain a preliminary estimate rapidly. Key words: Harran clay, methylene blue stain test, swell percentage, swell pressure, multiple regression analysis.
My Fair Ladies

The fantasy of a male creator constructing his perfect woman dates back to the Greek myth of Pygmalion and Galatea. Yet as technology has advanced over the past century, the figure of the lifelike manmade woman has become nearly ubiquitous, popping up in everything from Bride of Frankenstein to Weird Science to The Stepford Wives. Now Julie Wosk takes us on a fascinating tour through this bevy of artificial women, revealing the array of cultural fantasies and fears they embody. My Fair Ladies considers how female automatons have been represented as objects of desire in fiction and how "living dolls" have been manufactured as real-world fetish objects. But it also examines the many works in which the manmade "perfect" woman turns out to be artificial - a robot or doll - and thus becomes a source of uncanny horror. Finally, Wosk introduces us to a variety of female artists, writers, and filmmakers - from Cindy Sherman to Shelley Jackson to Zoe Kazan- who have subversively appropriated the figure of the manmade woman. Anything but dry, My Fair Ladies draws upon Wosk's own experiences as a young female Playboy copywriter and as a child of the "feminine mystique" era to show how images of the artificial woman have loomed large over real women's lives. Lavishly illustrated with film stills, artwork, and vintage advertisements, this book offers a fresh look at familiar myths about gender, technology, and artistic creation.
Tail approximations for the Student $t$-, $F$-, and Welch statistics for non-normal and not necessarily i.i.d. random variables

Let T be the Student one- or two-sample t-, F-, or Welch statistic. Now release the underlying assumptions of normality, independence and identical distribution and consider a more general case where one only assumes that the vector of data has a continuous joint density. We determine asymptotic expressions for P(T > u) as u -> infinity for this case. The approximations are particularly accurate for small sample sizes and may be used, for example, in the analysis of High-Throughput Screening experiments, where the number of replicates can be as low as two to five and often extreme significance levels are used. We give numerous examples and complement our results by an investigation of the convergence speed - both theoretically, by deriving exact bounds for absolute and relative errors, and by means of a simulation study.
THE SIX-CAVITY TEST - DEMONSTRATED ACCELERATION OF BEAM WITH MULTIPLE RF CAVITIES AND A SINGLE KLYSTRON*

The High Intensity Neutrino Source (HINS) ‘SixCavity Test’ has demonstrated the use of high power RF vector modulators to control multiple RF cavities driven by a single high power klystron to accelerate a nonrelativistic beam. Installation of 6 cavities in the existing HINS beamline has been completed and beam measurements have been made. We present data showing the energy stability of the 7 mA proton beam accelerated through the six cavities from 2.5 MeV to 3.4 MeV.
Evaluation of Sahel ground climatology from 1982 to 1990 based on satellite derived LAI, 200 raingauge stations, and a vegetation model (SSIB)

The Sahel has experienced a severe and persistent drought since the beginning of the 1960s. Moreover in the same period, the land surface degradation associated with human pressure dramatically increased. In this study, we use observational precipitation data, satellite derived LAI, and a land surface model (SSiB) to evaluate the ground climatology over this region. 217 raingauge stations have been selected from the IRD (Institut de Recherche pour le Developpement-France) daily rainfall database over West Africa, tested and added with other sources. The choice of the stations is based on three different criteria: the maximization of the spatial coverage (2°N-20°N and 18°W- 25°E), the maximum period length without any gap (1982-90), and the maximum variation of different associated vegetation types (7 types are included). The stations have been interpolated into 1°x1° grid boxes. The land cover map used to determine standard surface parameter values was from the global land cover database of Hansen et al. (2000). Leaf Area Index (LAI) and vegetation cover parameters were derived from available AVHRR NDVI satellite data (Los et al., 2001). The remaining forcing variables were derived from NCEP/NCAR Reanalysis data (Kalnay, 1996) and interpolated from 6-hour values to hourly values during this time period. These forcing data will be used to drive an offline version of the model SSiB (Xue et al., 1991) to produce surface meteorological and hydrological variables. This paper discusses the seasonal and interannual variability of surface water and energy balances in West Africa. The spatial and temporal patterns of surface fluxes are analyzed. In addition, a comparison is made with reanalysis variables to evaluate the coherence of these two products. Moreover, correlation analyses are done with the main SST signals in the Pacific and Atlantic oceans and LAI data. To investigate the impact of land surface degradation in West Africa, sensitivity experiments are conducted. They are performed separately on the Sahel zone and Guinea zone and focuses on the impact of land cover change on water and energy balances in the west and east parts of each zone. These experiments show the importance of the modification of the land surface characteristics on the land surface-atmosphere relationship.