Miracle-dz/UniFAR-FTUs huggingface dataset:
A HYBRID APPROACH OF QUERY EXPANSION FOR VIETNAMESE QUERY

Abstract - The semantics of a user ’s query plays an important role in supporting an Information Retrieval (IR), which returns results closer to the user's query. However, most of user’s queries sometimes do not fully reflect the semantics. Therefore, it is necessary to add semantics to the user’s query . The paper presents how to add semantics into a query in Vietnamese language using a hybrid method, which combines ontology and local analysis technique, in order to expand the user’s queries. In the hybrid method, ontology – based query expansion technique analyzes semantics relationships in order to determine similar noun phrases, and local analysis technique is to get the most relevant documents which are to identify the context of user’s query. Keywords - Vietnamese language query expansion; hybrid model of query expansion; query expansion; local analysis; ontology I. INTRODUCTION Nowadays, Information Retrieval (IR) and Search Engine (SE) become one of the most important tools for our life. Most of users use IR or SE when they search new information on digital library or the Internet. However, the returned results from these systems always include some documents which are not relevant with the user’s query. One of the reasons leading to the returned results which are not highly precise is a short query. To achieve more accurate results, a query will be added more keywords which related to its query semantics. This is a problem of query expansion. There are two techniques of query expansion [20]: search result – based technique, and knowledge structure – based technique. The search result – based technique uses terms which are chosen from the retrieved documents in the relevance feedback process. The knowledge structure – based technique can either depend on corpus or be independent of it. The collection – dependent knowledge structure expands user’s query by adding keywords from a knowledge model as WordNet, ontology. The semantics of user’s query is determined in this technique. In contrast to the collection – dependent knowledge structure, collection – independent knowledge structure is based on statistical analysis of the feedback from the corpus such as global analysis, local analysis, etc. User’s query is expanded from returned documents which have relationship with user’s query. One of the first techniques is global analysis technique which improves returned results. This technique analyzes the entire document corpus to determine word relationships. Otherwise, local analysis technique which uses top-ranked retrieved documents for query expansion is to identify the context of user’s query and to achieve high efficiency in retrieving the specific domain as medicine, computer science, etc. Accordingly, based on the advantages’ techniques above, a query expansion model for Vietnamese query is proposed. This model uses a hybrid method which combines ontology and local analysis technique in order to expand the user’s queries.
A Cross-Lingual Spoken Content Search System

This paper presents an approach towards enabling audio search for those languages where training an automatic speech recognition (ASR) system is difficult, owing to lack of training resources. Our work is related to previous approaches where the problem of allowing search for out-of-vocabulary terms has been addressed. A phonetic recognizer is used to convert the audio data into phonetic lattices. In the proposed approach, the acoustic models (AM) for the phonetic recognizer are trained on a base language for which training data is available and used to search the content in a similar language. A phonetic language model (PLM) is trained for each language independently using text data available from a variety of sources including the web. We have performed experiments to evaluate this approach for searching through Gujarati corpus where the AM were trained on Indian-English corpus. The experimental results show that this approach can provide a P@10 (precision at 10) accuracy of up to 0.65.
The Addition of Fiber and the Use of Continuous Infusion Decrease the Incidence of Diarrhea in Elderly Tube-fed Patients in Medical Wards of a General Regional Hospital: A Controlled Clinical Trial

Goals To determine if feeds high in fiber continuously administered might minimize diarrhea. Background The addition of soluble fiber to enteral feedings has not consistently decreased diarrhea in controlled clinical trials, and the effect of the use of intermittent or continuous infusions on the rate of diarrhea is similarly controversial. Study We studied 148 of 160 selected elderly well-nourished patients with acute disease prohibiting oral intake in a controlled clinical trial in the setting of an internal medicine departments in a regional hospital who were divided into 4 groups and fed according to combinations of intermittent or continuous systems, with fiber-free or fiber rich formulas. The 5-day rate of diarrhea was defined as 2 liquid stools or 3 or more semisolid or liquid bowel movements during a 24-hour period. Other outcome variables included mortality, hospital days, prolonged hospitalization (over 20 d), fever, and stools positive for Clostridium difficile cytotoxin A/B. Results The increased relative risk of the continuous/fiber-free, intermittent/fiber, and intermittent/fiber-free groups compared with the continuous/fiber group was 2.8 [95% confidence interval (CI)=1.0-8.1], 2.5 (95% CI=0.9-7.1), and 5.0 (95% CI=1.9-13.2), respectively. These findings were independent of age (>80 y), female sex, being treated with antibiotics for respiratory or urinary infections, receiving respiratory support, or being fully conscious. There were no significant differences in the other outcomes. Conclusions We conclude that in elderly well-nourished hospitalized patients with acute diseases prohibiting oral intake, continuous and closed enteral feedings with the addition of fiber is effective in reducing the rate of diarrhea.
Enhanced angular resolution and ambiguity suppression for MIMO radar systems by compressed sensing techniques

In general, coherent multiple-input multiple-output (MIMO) radar systems with co-located antennas, form monostatic virtual arrays by discrete convolution of bistatic setups of transmitters and receivers. Thereby, a trade-off between maximum array dimension, element spacing and hardware efforts exists. Compressed sensing techniques can help to improve resolution or to suppress angular ambiguities for a given hardware expense. This paper demonstrates the application of a compressed sensing technique on an existing MIMO radar operating in lower W-band. Theoretical results improving the azimuth resolution and the suppression of azimuth ambiguities are presented.
Elevated Levels of Ketopantoate Hydroxymethyltransferase (PanB) Lead to a Physiologically Significant Coenzyme A Elevation in Salmonella enterica Serovar Typhimurium

ABSTRACT Pantothenate is the product of the ATP-dependent condensation of pantoate and β-alanine and is a direct precursor of coenzyme A. A connection exists between pantothenate biosynthesis and thiamine biosynthesis in Salmonella enterica serovar Typhimurium since derivatives of a purF mutant that can grow (on glucose medium) in the absence of thiamine excrete pantothenate. We show here that the causative mutation in three such mutants was the addition of a CG base pair upstream of the panB gene. This base addition brings the spacing between the −10 and −35 hexamers of the promoter to a consensus spacing of 17 bp and results in increased transcription of the pan operon. Furthermore, overexpression of PanB caused by this mutation, or by other means, was necessary and sufficient to increase pantothenate production and allow PurF-independent thiamine synthesis on glucose medium.
Perspectives on firm decision making during risky technology acquisitions

A novel survey dataset on computed tomography (CT) machine acquisition is used to explore which theories best answer two questions from the decision making literature. First, what determines how much uncertainty a firm has when investing in updated technology? Second, what determines the value of the acquisition? In answering these questions, two theoretical comparisons are conducted. In the first, economic theory, behavioral theory (the Behavioral Theory of the Firm and Prospect Theory), and Bounded Rationality are tested as potential determinants of acquisition uncertainties. In the second, economic theory and Prospect Theory are tested as potential determinants of the value of the machine acquired. To answer these questions, hospitals were surveyed about the acquisition of their most valuable computed tomography machine. From the survey data, support was found for the Bounded Rationality hypothesis; firms have less uncertainty about an acquisition’s performance on attributes that correspond to more strongly held objectives. Support was also found for the behavioral theory hypothesis; firms whose prior machines perform below aspiration levels seek more uncertainty in their subsequent acquisitions, while firms whose machines perform above aspiration levels seek less uncertainty. No support was found for the normative hypothesis; acquisition uncertainty is determined by economic attributes. In the second comparison, partial support was found for the normative theory hypothesis and no support was found for Prospect Theory hypothesis. The value of the acquisition increased as the minimum lifespan of the acquisition increased. Perceived revenue, operating cost, and financial factor uncertainty did not significantly influence acquisition value, providing no support for Prospect Theory. However, greater uncertainty over the acquisition’s ability to fulfill customer desires was associated with the acquisition of a less expensive machine. Studies of the influence of uncertainty on capital investment decision making have traditionally focused on financial forms of uncertainty. The results of this study suggest that the influence of uncertainty related to an acquisition’s ability to fulfill customer desires may have an even stronger influence on the value of an acquisition than variables related to the non-perceptual characteristics of the acquirer. Degree Type Dissertation Degree Name Doctor of Philosophy (PhD) Graduate Group Managerial Science and Applied Economics First Advisor Lawton R. Burns, Ph.D., M.B.A. This dissertation is available at ScholarlyCommons: http://repository.upenn. edu/edissertations/313
Ethnic differences in use of complementary and alternative medicine at midlife: longitudinal results from SWAN participants.

OBJECTIVES We estimated the prevalence and longitudinal correlates of use of complementary and alternative medicine (CAM) at midlife among participants of the Study of Women's Health Across the Nation (SWAN). METHODS Multiple logistic regression was used to evaluate the relationship between baseline survey-reported symptoms and use of herbal, spiritual, and physical manipulation therapies 1 year later. RESULTS Almost half of all women had used CAM in the past year. Baseline psychological symptoms were associated with subsequent use of spiritual therapies among White and Chinese women. Baseline CAM use was a major predictor of subsequent use in White, Japanese, and Chinese women. CONCLUSIONS Baseline CAM use, rather than presence of symptoms, was the major predictor of subsequent CAM use. Premenopausal health behaviors are important determinants of choice of therapy during midlife.
An introduction to seismology

Investigates the effects of earthquakes in the Victoria region of Australia. Looks at how they can be predicted by the use of seismology, and how this information can be used to protect buildings from major damage. Examines a system developed by the Seismology Research Centre, Bundoora, Australia, to provide alarm, damage scenario and response information after moderate or large earthquakes.
Handbook of Hedge Funds

DESCRIPTION A comprehensive guide to the burgeoning hedge fund industry Intended as a comprehensive reference for investors and fund and portfolio managers, Handbook of Hedge Funds combines new material with updated information from Francois-Serge L’habitant’s two other successful hedge fund books. This book features upto-date regulatory and historical information, new case studies and trade examples, detailed analyses of investment strategies, discussions of hedge fund indices and databases, and tips on portfolio construction.
Correlating Atom Probe Crystallographic Measurements with Transmission Kikuchi Diffraction Data

Abstract Correlative microscopy approaches offer synergistic solutions to many research problems. One such combination, that has been studied in limited detail, is the use of atom probe tomography (APT) and transmission Kikuchi diffraction (TKD) on the same tip specimen. By combining these two powerful microscopy techniques, the microstructure of important engineering alloys can be studied in greater detail. For the first time, the accuracy of crystallographic measurements made using APT will be independently verified using TKD. Experimental data from two atom probe tips, one a nanocrystalline Al–0.5Ag alloy specimen collected on a straight flight-path atom probe and the other a high purity Mo specimen collected on a reflectron-fitted instrument, will be compared. We find that the average minimum misorientation angle, calculated from calibrated atom probe reconstructions with two different pole combinations, deviate 0.7° and 1.4°, respectively, from the TKD results. The type of atom probe and experimental conditions appear to have some impact on this accuracy and the reconstruction and measurement procedures are likely to contribute further to degradation in angular resolution. The challenges and implications of this correlative approach will also be discussed.
Electrocardiographic findings predict short-term cardiac morbidity after transient ischemic attack.

BACKGROUND Current guidelines recommend the use of electrocardiography (ECG) in the evaluation of transient ischemic attack (TIA), but the data supporting its value in acute management are sparse. OBJECTIVE To determine whether ECG findings are useful as independent predictors of short-term cardiac or neurologic complications after TIA. METHODS We included patients who presented to 1 of 16 emergency departments of a health maintenance organization in northern California and received a diagnosis of TIA from March 1, 1997, through February 28, 1998, for a 90-day follow-up. A cardiac event was defined as a hospitalization or a death due to myocardial infarction, ventricular arrhythmia, heart failure, or unstable angina. RESULTS Among the 1327 patients with TIA for whom ECG findings were available for diagnostic coding, cardiac events occurred in 2.9%, strokes in 10.9%, recurrent TIAs in 13.7%, and deaths in 2.6% during 90-day follow-up. The ECG findings disclosed a new diagnosis of atrial fibrillation in 28 (2.3%) of the 1200 patients with no history of this condition. The 90-day risk for a cardiac event was greater in those who had any abnormal ECG findings (4.2% vs 0.6%; P<.001). This association remained significant after adjustment for medical history and examination findings (odds ratio, 6.9; 95% confidence interval, 1.6-29.5; P =.009). Left ventricular hypertrophy, atrial fibrillation, and atrioventricular conduction abnormalities were each independently associated with more than doubling of the risk. The ECG abnormalities were not associated with risk for stroke or death. CONCLUSIONS Short-term cardiac morbidity is substantial after TIA. Electrocardiographic findings disclose new atrial fibrillation in a significant portion of patients with TIA and can identify a group of patients at a substantially higher risk for short-term cardiac events.
EFFECT OF TWO AND FIVE DAYS OF CREATINE LOADING ON ANAEROBIC WORKING CAPACITY IN WOMEN

The purpose of this study was to determine the effects of 2 and 5 days of Cr loading on anaerobic working capacity (AWC) using the critical power (CP) test in women. Ten physically active women randomly received 2 treatments separated by a 5 week washout period: (A) 18 g dextrose as placebo (PL) or (B) 5.0 g Cr + 18 g dextrose taken 4 times per day for 5 days. Following a familiarization trial, each subject completed the CP test at baseline and following 2 and 5 days of supplementation. The PL resulted in no significant changes in AWC following supplementation; however, Cr increased AWC by 22.1% after 5 days of loading (p < 0.05). There was a significant main effect for body weight (BW), however, there was no significant increase in BW due to Cr supplementation. These results suggest that Cr supplementation is effective for increasing AWC in women following 5 days of loading without an associated increase in BW.
Calcium supplementation for the management of primary hypertension in adults.

BACKGROUND Metabolic studies suggest calcium may have a role in the regulation of blood pressure. Some epidemiological studies have reported that people with a higher intake of calcium tend to have lower blood pressure. Previous systematic reviews and meta-analyses have reached conflicting conclusions about whether oral calcium supplementation can reduce blood pressure. OBJECTIVES To evaluate the effects of oral calcium supplementation as a treatment for primary hypertension in adults. SEARCH STRATEGY We searched the Cochrane Library, MEDLINE, EMBASE, Science Citation Index, ISI Proceedings, ClinicalTrials.gov, Current Controlled Trials, CAB abstracts, and reference lists of systematic reviews, meta-analyses and randomised controlled trials (RCTs) included in the review. SELECTION CRITERIA Inclusion criteria were: 1) RCTs comparing oral calcium supplementation with placebo, no treatment, or usual care; 2) treatment and follow-up >/=8 weeks; 3) participants over 18 years old, with raised systolic blood pressure (SBP) >/=140 mmHg or diastolic blood pressure (DBP) >/=85 mmHg; 4) SBP and DBP reported at end of follow-up. We excluded trials where: participants were pregnant; received antihypertensive medication which changed during the study; or calcium supplementation was combined with other interventions. DATA COLLECTION AND ANALYSIS Two reviewers independently abstracted data and assessed trial quality. Disagreements were resolved by discussion or a third reviewer. Random effects meta-analyses and sensitivity analyses were conducted. MAIN RESULTS We included 13 RCTs (n=485), with between eight and 15 weeks follow-up. The results of the individual trials were heterogeneous. Combining all trials, participants receiving calcium supplementation as compared to control had a statistically significant reduction in SBP (mean difference: -2.5 mmHg, 95% CI: -4.5 to -0.6, I(2 )= 42%), but not DBP (mean difference: -0.8 mmHg, 95% CI: -2.1 to 0.4, I(2) = 48%). Sub-group analyses indicated that heterogeneity between trials could not be explained by dose of calcium or baseline blood pressure. Heterogeneity was reduced when poor quality trials were excluded. The one trial reporting adequate concealment of allocation and the one trial reporting adequate blinding yielded results consistent with the primary meta-analysis. AUTHORS' CONCLUSIONS In view of the poor quality of included trials and the heterogeneity between trials, the evidence in favour of causal association between calcium supplementation and blood pressure reduction is weak and is probably due to bias. This is because poor quality studies generally tend to over-estimate the effects of treatment. Larger, longer duration and better quality double-blind placebo controlled trials are needed to assess the effect of calcium supplementation on blood pressure and cardiovascular outcomes.
Clinical Value of Morphometric and DNA Flow Cytometric Variables as Independent Predictors of Survival in Epithelial Ovarian Carcinoma: A 5-year Follow-up Study

The aim of this follow-up study is to validate the clinical significance of quantitative morphometric and DNA flow cytometric variables as independent prognostic factors of overall survival and progression-free survival in epithelial ovarian carcinoma. Tumor samples were collected from 135 patients with epithelial ovarian carcinoma at 3 hospitals in the Netherlands. Evaluated clinico-pathologic variables were age, histologic subtype, differentiation grade, clinical stage [International Federation of Gynecology and Obstetrics (FIGO)], presence of ascites, serum CA-125, and the completeness of debulking surgery. Morphometry and DNA flow cytometric techniques were assessed on each tumor sample to determine the mitotic activity index (MAI), volume percentage epithelium, mean nuclear area (MNA), standard deviation of MNA (SD MNA), nuclear perimeter (NP), and DNA ploidy. Univariate analysis showed that differentiation grade, FIGO stage, presence of ascites, preoperative CA-125 levels, DNA ploidy, and MAI, NP, and MNA were of significant prognostic value. After multivariate analysis (using forward Cox proportional hazard analysis), only differentiation grade and FIGO stage remained significant. From this study, we can conclude that morphometry and DNA flow cytometry are not independent prognosticators and therefore have no clinical value in predicting prognosis in ovarian carcinoma.
Linking products to a cause or affinity group:Does this really make them more attractive to consumers?

Purpose – Cause‐related and affinity marketing are based on the assumption that linking a commercial organisation's product with a non‐profit organisation enhances the product's appeal and provides differentiation from rival offers. The purpose of this paper is to examine the efficacy of this premise.Design/methodology/approach – In‐depth qualitative research was conducted to explore the construction of consumer value in affinity credit cards, followed by large‐scale quantitative research to assess the prevalence of the perceptions and behaviour patterns identified.Findings – Linked products offer a range of individual and group benefits, both functional and symbolic. However, the value placed on these benefit categories varied according to the type of affinity group.Research limitations/implications – Whilst encompassing a wide range of affinity categories, all of the affinity credit cards were issued by one financial services organisation. Variation is therefore possible between the benefits offered by .
Risk Factors Associated with In-Hospital Post-Chemotherapy Mortality in Patients with Malignant Musculoskeletal Tumors

Introduction: Reducing the in-hospital post-chemotherapy mortality rate in patients with malignant musculoskeletal tumors is important for improving treatment outcome. This study aimed to investigate the risk factors associated with in-hospital post-chemotherapy mortality in patients with primary malignant musculoskeletal tumors. Methods: Using a Japanese national inpatient database, we retrospectively identified 5039 patients (2920 men and 2131 women; mean age, 39 years) who underwent curative chemotherapy for malignant musculoskeletal tumors between 2007 and 2010. We extracted data on the patients’ characteristics, complications, chemotherapeutic agent use, comorbidities, and in-hospital death. Logistic regression analyses were performed to analyze factors affecting in-hospital post-chemotherapy death in these patients. Results: The overall in-hospital mortality rate was 1.1%. Higher in-hospital mortality rates were significantly associated with a greater volume of blood transfusion (>2500 mL) (odds ratio [OR], 49.71; 95% confidence interval [CI], 22.24 - 111.12; p < 0.001), diabetes mellitus (OR, 3.05; 95% CI: 1.21 - 7.70; p = 0.019), and older age (OR, 3.05; 95% CI, 1.11 - 8.37; p = 0.031). Conclusions: Higher in-hospital post-chemotherapy mortality rates were associated with massive blood transfusion, which was associated with a 16-fold higher risk of in-hospital mortality compared with other risk factors. Blood transfusion volume should be considered an important indicator for deciding whether the next cycle of chemotherapy is administered continuously or not.