15,383 research outputs found
Epizootiološko istraživanje slinavke i šapa u Sudanu: stanje nakon dva desetljeća
In order to update information on the situation regarding foot and mouth disease (FMD) in the Sudan, a serosurvey and disease survey were conducted. Recently collected data on FMD in the Sudan showed that FMD is a major constraint to animal production in the country. It presents no threat nor does it cause mild disease in sheep and goats. The disease, with obvious clinical signs, has been detected in cattle only, and is caused by serotype O and SAT 2. Seasonal occurrence of the disease in the cold, dry season has been observed and animal
movement seems to play a major role in virus dissemination. A total of 1,069 sera were collected from cattle, sheep, goats, and camel, from seven states in the Sudan, for the detection of antibodies to FMDV. Application of liquid phase blocking (LPB) ELISA revealed that antibodies to four serotypes were present in ruminants; namely O, A, SAT 1 and SAT 2. No antibodies to FMDV were detected in camel sera. The results differed from early reports regarding the prevalence of serotype specifi c antibodies in different species; for instance, in cattle, the antibodies to type A (78.13%) surpassed that of type O (69.39%) and the antibodies to type SAT 2 (44%) surpassed that of type SAT 1 (20.2%). This work elucidates the current epidemiology of FMD in some parts of the Sudan.Radi pružanja informacija o sadašnjem stanju slinavke i šapa u Sudanu provedena su serološka istraživanja te je prikazana njezina pojavnost. Svježe prikupljeni podatci o pojavi slinavke i šapa u Sudanu pokazali su da ona predstavlja veliku prepreku životinjskoj proizvodnji u toj zemlji. U ovaca i koza javlja se kao blaga bolest i ne predstavlja veliku prijetnju, dok se u goveda javlja s očitim kliničkim znakovima, a uzrokovana je serotipovima O i SAT 2. Bolest se javlja sezonski u hladnoj i suhoj sezoni, a promet životinjama ima glavnu ulogu u širenju virusa. Ukupno je bilo prikupljeno 1069 uzoraka seruma goveda, ovaca, koza i deva podrijetlom iz sedam država u Sudanu radi pretrage na prisutnost protutijela za virus slinavke i šapa. Blokirajućim imunonenzimnim testom dokazana su protutijela za četiri serotipa virusa: O, A, SAT 1 i SAT 2. Protutijela za virus slinavke i šapa
nisu bila dokazana u uzorcima seruma deva. Rezultati se razlikuju od ranijih izvješća s obzirom na prevalenciju specifi čnih protutijela u različitih vrsta. Npr., specifi čna protutijela za serotip A dokazana su u 78,13% goveda, za serotip O u 69,39%, serotip SAT 2 u 44% te serotip SAT 1 u 20,2% goveda. U radu je prikazano sadašnje epizootiološko stanje slinavke i šapa u nekim dijelovima Sudana
Change of size and type of patent ductus arteriosus in a one year old infant during routine echocardiographic study
There are only very few publications which document reactivity of patent
ductus arteriosus. This report documentes the reactivity of a patent arterial
duct in a one year old infant, 6.5 kg weight during a routine echocardiographic
color Doppler study. Echocardiographic images were obtained during
conscious sedation.peer-reviewe
Ab Initio Study of Phase Stability in Doped TiO2
Ab-initio density functional theory (DFT) calculations of the relative
stability of anatase and rutile polymorphs of TiO2 were carried using
all-electron atomic orbitals methods with local density approximation (LDA).
The rutile phase exhibited a moderate margin of stability of ~ 3 meV relative
to the anatase phase in pristine material. From computational analysis of the
formation energies of Si, Al, Fe and F dopants of various charge states across
different Fermi level energies in anatase and in rutile, it was found that the
cationic dopants are most stable in Ti substitutional lattice positions while
formation energy is minimised for F- doping in interstitial positions. All
dopants were found to considerably stabilise anatase relative to the rutile
phase, suggesting the anatase to rutile phase transformation is inhibited in
such systems with the dopants ranked F>Si>Fe>Al in order of anatase
stabilisation strength. Al and Fe dopants were found to act as shallow
acceptors with charge compensation achieved through the formation of mobile
carriers rather than the formation of anion vacancies
Micro Facies Analysis and Development of Diagenetic Processes in Khasib Formation in Selected Oil Wells, South East of Iraq
يعد تكوين الخصيب من التكوينات الميمة في تتابع التوروني الكامباني المبكر ، حيث يمثل نظام المسار التقدمي ضمن بيئة -- - ) الرف الداخمي والعميق ، اذ تم د ا رسة تكوين الخصيب في أربعة آبار نفطية، اثنان منيما من حقل نور النفطي ىما ) نور 1 ونور 2- - . ) والآخ ا رن من حقل العمارة النفطي وىما )عمارة 4 وعمارة 5( في محافظة ميسان ، جنوب شرق الع ا رق .)البدري, 1111تم تمييز خمسة سحنات دقيقة في تكوين الخصيب ىي : الحجر الجيري الحبيبي والحجر الجيري المت ا رص والحجر الجيري الواكيوالمت ا رص الواكي والحجر الجيري الطيني ، حيث تواجدت السحنات ذات النسيج الخشن في الجزء الاسفل من تكوين الخصيب في -الآبار المدروسة بينما تمثل الجزء الاعمى منو بالنسيج الناعم والذي يعني تعمقا باتجاه الأعمى .تم تميي زعددآ من العمميات التحويرية التي أثرت عمى نسيج تكوين الخصيب ، حيث كان بعضآ منيا يمثل عمميات بنائية والتي لعبتدور آايجابيآ في تحسين نسبة المسامية بينما مثمت العمميات الأخرى دو ا ر سمبيآ في تأثيرىا عمى المساميةKhasib Formation is considered an important formation in the Late Turonian-Early Campanian sequence and represented a transgressive system tract within deep and inner ramp environment, where Khasib Formation was studied in four oil wells, two from Noor oil field they are : (No-1,2), and the others form Amara oil field ,they are (Am-4,5) in Missan governorate ,southeast of Iraq. (Al-Badry,1999).Five main microfacies had been recognized for Khasib Formation in studied oil wells , they are : grainstone, packstone , Wackstone, packstone –wackstone and mudstone microfacies , and the coarse texture was defined in the lower part of Khasib Formation while the fine texture was defined in the upper part of the studied formation which meaning deepening upward.Many digenesis processes which effect on the texture also had been detected, some of them were constructive which played positive role in enhancement the porosity while the other represented negative role
Synthesis and characterization of iron (ii) and nickel (ii) schiff base complexes
The complexes of iron (II) and nickel (II) with schiff base derived from benzoin and 2-amino benzoic acid have been prepared. Solubility, melting point, decomposition temperature, conductance measurement, infrared (IR) and UV – Visible spectrophotometric studies were used in characterizing the compounds. The melting point of the schiff base determined is 120oC. The decomposition temperatures of iron (II) and nickel (II) complexes are 152oC and 155oC, while the molar conductance values are 11.2 and 10.7 ohm-cm2mol-1, respectively. The UV-Visible spectrophotometric analysis revealed 1:1 (metal-ligand) stoichiometry for the two complexes.
Keywords: Schiff base, conductivity, azomethine, benzoin, spectrophotometry
Assessment of Child Immunization Coverage and Associated Factors in Oromia Regional State, Eastern Ethiopia
No Abstract
Complete Sequences of Organelle Genomes from the Medicinal Plant Rhazya Stricta (Apocynaceae) and Contrasting Patterns of Mitochondrial Genome Evolution Across Asterids
Rhazya stricta is native to arid regions in South Asia and the Middle East and is used extensively in folk medicine to treat a wide range of diseases. In addition to generating genomic resources for this medicinally important plant, analyses of the complete plastid and mitochondrial genomes and a nuclear transcriptome from Rhazya provide insights into inter-compartmental transfers between genomes and the patterns of evolution among eight asterid mitochondrial genomes. Results: The 154,841 bp plastid genome is highly conserved with gene content and order identical to the ancestral organization of angiosperms. The 548,608 bp mitochondrial genome exhibits a number of phenomena including the presence of recombinogenic repeats that generate a multipartite organization, transferred DNA from the plastid and nuclear genomes, and bidirectional DNA transfers between the mitochondrion and the nucleus. The mitochondrial genes sdh3 and rps14 have been transferred to the nucleus and have acquired targeting presequences. In the case of rps14, two copies are present in the nucleus; only one has a mitochondrial targeting presequence and may be functional. Phylogenetic analyses of both nuclear and mitochondrial copies of rps14 across angiosperms suggests Rhazya has experienced a single transfer of this gene to the nucleus, followed by a duplication event. Furthermore, the phylogenetic distribution of gene losses and the high level of sequence divergence in targeting presequences suggest multiple, independent transfers of both sdh3 and rps14 across asterids. Comparative analyses of mitochondrial genomes of eight sequenced asterids indicates a complicated evolutionary history in this large angiosperm clade with considerable diversity in genome organization and size, repeat, gene and intron content, and amount of foreign DNA from the plastid and nuclear genomes. Conclusions: Organelle genomes of Rhazya stricta provide valuable information for improving the understanding of mitochondrial genome evolution among angiosperms. The genomic data have enabled a rigorous examination of the gene transfer events. Rhazya is unique among the eight sequenced asterids in the types of events that have shaped the evolution of its mitochondrial genome. Furthermore, the organelle genomes of R. stricta provide valuable genomic resources for utilizing this important medicinal plant in biotechnology applications.King Abdulaziz UniversityIntegrative Biolog
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