2,248 research outputs found
PAAD: POLITICAL ARABIC ARTICLES DATASET FOR AUTOMATIC TEXT CATEGORIZATION
Now day’s text Classification and Sentiment analysis is considered as one of the popular Natural Language Processing (NLP) tasks. This kind of technique plays significant role in human activities and has impact on the daily behaviours. Each article in different fields such as politics and business represent different opinions according to the writer tendency. A huge amount of data will be acquired through that differentiation. The capability to manage the political orientation of an online article automatically. Therefore, there is no corpus for political categorization was directed towards this task in Arabic, due to the lack of rich representative resources for training an Arabic text classifier. However, we introduce political Arabic articles dataset (PAAD) of textual data collected from newspapers, social network, general forum and ideology website. The dataset is 206 articles distributed into three categories as (Reform, Conservative and Revolutionary) that we offer to the research community on Arabic computational linguistics. We anticipate that this dataset would make a great aid for a variety of NLP tasks on Modern Standard Arabic, political text classification purposes. We present the data in raw form and excel file. Excel file will be in four types such as V1 raw data, V2 preprocessing, V3 root stemming and V4 light stemming
Antimicrobial Activity of Terpenoids Extracted from Annona muricata Seeds and its Endophytic Aspergillus niger Strain SH3 Either Singly or in Combination
BACKGROUND: Annona muricata (Soursop) has an antimicrobial activity toward various pathogenic microorganisms which support its ethnomedicinal for the treatment of many infectious diseases.
AIM: Aim of the present study to evaluate the relation between antimicrobial activities of terpenoids extracted from different soursop parts with the isolated endophytic fungi.
METHODS: Endophytic fungal species of pulp and peel of Annona fruit along with those of seeds were isolated. Salkowski test was used for qualitative screening of terpenoids in plant and the isolated endophytic Aspergillus niger strain SH3.
RESULTS: Endophytic A. niger strain SH3 and Annona seed extract showed high terpenoid content indicated by the high intensity of reddish-brown colour. GC/Mass analysis revealed six compounds of terpenoids from endophytic A. niger strain SH3 extract and four compounds from seed extract with different retention times. The antimicrobial assay was performed using A. niger strain SH3 extract and Annona seed extract singly or in combinations against S. aureus, P. aeruginosa, E. coli and C. albicans.
CONCLUSION: The results revealed the significant antimicrobial activity of both extracts. However, the combined extract showed some reduction in antimicrobial activity which could be attributed to the antagonistic effect exhibited by their constituents
Chemical Investigation of Some Capparis Species Growing in Egypt and their Antioxidant Activity
Capparis cartilaginea and C. deserti growing in Egypt were investigated for their glucosiolates and rutin content. From Capparis cartilaginea four isothiocynates were isolated and identified using GC and EI/MS techniques. These compounds were butyl isothiocyanate (1), 6-methylsulphonylhexyl isothiocyanate (2), 7-methylsulphonylheptyl isothiocyanate (3) and 5-benzylsulphonyl-4-pentenyl isothiocyanate (4). In addition to compounds (1) and (2), two other compounds were isolated and identified from Capparis deserti. These compounds are 3-methylthiopropyl isothiocyanate (5) and [11-(2-butenylthio)6-undecenyl isothiocyanate] (6). Compounds (1), (2), (5) and (6) are reported in this study for the first time from Capparis deserti. The main flavonoid component in the studied species was isolated and identified as rutin by comparing the data with those reported. Also, quantitative evaluation of rutin in the two species was carried out by TLC-densitometric analysis. The antioxidant activity was done using diphenylpicrylhydrazyl (DPPH) radical scavenging method. The butanol fraction from C. cartilaginea and C. deserti showed the highest antioxidant properties
Impact of body mass index on the incidence and severity of post-endoscopic retrograde cholangiopancreatography pancreatitis
Background: Pancreatitis is a potential major complication after endoscopic retrograde
cholangiopancreatography (post-ERCP pancreatitis; PEP). Obesity has been associated with
increased severity of acute pancreatitis. However, the correlation between obesity and PEP is
controversial. Therefore, our study aimed to clarify the relationship between body mass index
(BMI) and the incidence and severity of PEP.
Methods: A retrospective cohort study was conducted to elucidate the relationship between BMI
and PEP in all patients who underwent ERCP in a tertiary referral center between January 2009
and October 2016. Patient characteristics and procedure details were collected. PEP was defined
by consensus criteria. Multivariate logistic regression was used to determine the association
between BMI and PEP.
Results: The analysis included 2236 patients whose BMI was recorded and had adequate follow up
(921 with BMI≥30 kg/m2, 1315 with BMI<30 kg/m2). PEP was diagnosed in 107 (4.8%) patients.
PEP was seen in 49 obese patients (5.3%) and 58 non-obese patients (4.4%). In the univariate and
multivariate analysis BMI≥30 kg/m2 was not associated with PEP (odds ratio 1.2, 95%CI 0.8-1.8;
P=0.32). A subgroup analysis of different BMI subcategories found that BMI was not associated
with the incidence or severity of PEP.
Conclusion: In the largest study to date, neither obesity nor low body weight increased the
incidence or severity of PEP
Composite Inelastic Dark Matter
Peaking consistently in June for nearly eleven years, the annual modulation
signal reported by DAMA/NaI and DAMA/LIBRA offers strong evidence for the
identity of dark matter. DAMA's signal strongly suggest that dark matter
inelastically scatters into an excited state split by O(100 keV). We propose
that DAMA is observing hyperfine transitions of a composite dark matter
particle. As an example, we consider a meson of a QCD-like sector, built out of
constituent fermions whose spin-spin interactions break the degeneracy of the
ground state. An axially coupled U(1) gauge boson that mixes kinetically with
hypercharge induces inelastic hyperfine transitions of the meson dark matter
that can explain the DAMA signal.Comment: 5 pages (two-column), 1 figure, revised version, references adde
Relation between Lymphopenia and Internal Organ Involvement in Systemic Lupus Erythematosus Patients
Background: Systemic lupus erythematosus (SLE) is an autoimmune disease, characterized by autoantibody production and immunocomplex formation, leading to widespread inflammatory damage involving multi-organ systems. Lymphopenia is a common laboratory involvement seen in patients with SLE and the mechanism of it is still unclear.
Objectives: The aim of the current study was to investigate the relation between lymphopenia and clinical manifestations, laboratory findings, and disease activity in systemic lupus erythematosus (SLE) patients.
Patients and Methods: It was a cross sectional study; with a total of 60 patients with SLE recruited from the Rheumatology and Rehabilitation outpatient clinic at Sohag University Hospital. Demographic data, personal history, detailed history of general health condition and chronic or current diseases were reported. All the participants were subjected to detection of erythrocyte sedimentation rate, liver function tests, renal function tests, complete blood count (CBC), renal biopsy, protein/creatinine ratio and/or 24hr protein in urine, urine analysis, ANA profile, and Complement 3 and 4.
Results: Two thirds of the study population had normal lymphocytic count, and one third had lymphopenia. Lymphopenia group showed significantly more hypochromic anemia with significant lower hemoglobin level and lower MCV. The mean creatinine level was significantly higher among lymphopenic cases. Lymphopenic cases had higher proteinuria.
Conclusions: It could be concluded that lymphopenia in patients with SLE may be used as indicator of renal involvement in these patients
Double-Lepton Polarization Asymmetries and Branching Ratio in B \rar K_{0}^{*}(1430) l^+ l^- transition from Universal Extra Dimension Model
We investigate the B \rar K_{0}^{*}(1430) l^+ l^- transition in the
Applequist-Cheng-Dobrescu model in the presence of a universal extra dimension.
In particular, we calculate double lepton polarization asymmetries and
branching ratio related to this channel and compare the obtained results with
the predictions of the standard model. Our analysis of the considered
observables in terms of radius of the compactified extra-dimension as the
new parameter of the model show a considerable discrepancy between the
predictions of two models in low values.Comment: 12 Pages, 15 Figures and 1 Tabl
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