bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of granitic rock fines addition in the alkali-aggregate reaction (AAR) in cementitious materials
Authors: Santos Bruna Silva , Ribeiro Daniel Véras
Published: January 2021

Abstract According to previous studies, fine materials originated from reactive aggregates can act as a Alkali-Aggregate Reaction mitigator, having its effectiveness dependent on their reactivity, fineness and added content. Thus, the present work aims to study if reactive granitic rock fines can mitigate or reduce the AAR and how the fineness of the material influences its mitigation capacity. For this purpose, granitic rock fines (GRF) from 2 different deposits and Pyrex glass fines (PGF) were tested as concrete addition. Each one of these fines were used in two different finesses and added to the concrete in the contents of 20% by mass of cement. It was observed that the addition of GRF did not affect the physical-mechanical properties of concrete and allowed the reduction in the AAR, being more accentuated with the increase of its specific surface.
Solving Bigeometric Volterra Integral Equations by Using Successive Approximations Method
Authors: GÜNGÖR Nihan
Published: January 2021

In this study, the successive approximations method has been applied to investigate the solution for the linear bigeometric Volterra integral equations of the second kind in the sense of bigeometric calculus. The conditions to be taken into consideration for the bigeometric continuity and the uniqueness of the solution of linear bigeometric Volterra integral equations of the second kind are researched. Finally, some numerical examples are presented to illustrate successive approximations method.
Influencia de la autoestima sobre la felicidad subjetiva en mujeres funcionarias de un centro de salud primaria en Chillán
Authors: Morales Ojeda Ismael , Rodriguez Gatica Zaida , Vásquez Fonseca Violeth , Carrasco Venegas Daniela , Toledo Mansilla Melissa
Published: January 2021

Objetivo: Identificar la relación que la autoestima tiene sobre la felicidad subjetiva de las funcionariasdel área de la salud de un centro de salud primaria en Chillán. Metodología: De enfoque cuantitativo,diseño no experimental, de corte transversal, y de tipo correlacional.; la población estudiada correspondióa 250 funcionarios analizados en una muestra no probabilística intencional de 105 personas. Seutilizaron como instrumentos de medición la Escala de Autoestima de Rosemberg y la Escala deFelicidad Subjetiva de Lyubomirsky y Lepper. Resultados: Existe relación entre las medianas de lasvariables promedio de autoestima y promedio de felicidad subjetiva, con una significancia de (P<0,000)y una fuerza de R=0,386. Eso evidenció una correlación bilateral significativa entre la autoestima yla felicidad subjetiva, lo que dio cuenta de que ambas variables se influyen mutuamente. Además, seencontró una relación entre el ingreso económico y la autoestima, donde el grupo de mayores ingresospresentó un menor nivel de autoestima. Se pudo visualizar que las variables: edad, ingresos, estadocivil, escolaridad y religión no tienen una relación significativa con la felicidad subjetiva. Conclusión:La posible razón de estos resultados podría deberse a que el bienestar promueve emociones positivasy un sentido de valor individual que contribuye a que la vida sea mucho más predecible y ademásactúa como amortiguador al estrés al fortalecer la autoestima.
СОЦИАЛЬНАЯ МОБИЛЬНОСТЬ В СОВРЕМЕННОМ ОБЩЕСТВЕ: ОСНОВНЫЕ ТЕНДЕНЦИИ
Authors: Любченко Василий Сергеевич
Published: January 2021

Рассматриваются основные факторы, определяющие характер социальной мобильности в современном обществе. Исследуется влияние интеллектуального ресурса на экономическое положение индивида и его жизненные шансы.
Техногенный ландшафт как средоточие разнообразия редких видов лишайников в Центральном Черноземье
Authors: Muchnik Evgeniya E. , Zolotukhin Nikolaj I. , Degtyarev Nikolaj I.
Published: January 2021

Цель – первое лихенологическое обследование техногенных отвалов Михайловского горно-обогатительного комбината (Железногорский район, Курская область) с прилегающими природными и урбанизированными территориями. Материалы и методы. Сборы материалов проводились маршрутным методом в течение 2017 и 2019-2020 годов, камеральная обработка осуществлялась с применением общепринятых лихенологических методик. Идентифицированные образцы хранятся в гербариях Центрально-Черноземного заповедника им. проф. В. В. Алехина и Станции юных натуралистов г. Железногорска. Результаты и обсуждение. Выявленная лихенобиота включает 88 видов (преимущественно макролишайников, вследствие методики сбора) из 38 родов, 18 семейств. Наиболее распространенные, металл-толерантные виды: геоплезные Cladonia fimbriata, C. coniocraea, эпигеидные C. rei, C. mitis, C. cornuta, C. furcata, C. phyllophora и C. gracilis, эпифито-эпиксильные Evernia prunastri, Parmelia sulcata, Xanthoria parietina, Hypogymnia physodes и Physcia adscendens. Составлен аннотированный список в различной степени редких видов, среди которых 4 новых для Центрального Черноземья (Cladonia cervicornis, Dibaeis baeomyces, Usnea dasopoga, U. lapponica); 5 новых для Курской области (Bryoria fuscescens, Cladonia carneola, C. deformis, Melanohalea septentrionalis, Peltigera extenuata); 6 занесенных в Красную книгу Курской области (Cladonia subrangiformis, C. subulata, Peltigera praetextata, Platismatia glauca, Pseudevernia furfuracea и Usnea subfloridana); еще 5 редки в области или на более обширных территориях (Acarospora veronensis, Protoparmeliopsis muralis, Ramalina pollinaria, Trapelia coarctata, Usnea hirta). Сосредоточение значительного числа редких видов в техногенных ландшафтах, по-видимому, обусловлено рядом причин: наличием крупных выходов редкого в области и Центральном Черноземье субстрата (ожелезненного песчаника); слабой конкуренцией со стороны сосудистых растений на бедных и обогащенных металлами почвах и грунтах; ботанико-географическим положением территории; спецификой локального загрязнения среды, представленного преимущественно «кислыми» поллютантами и частицами металлов. Заключение. Отмечена приуроченность регионально редких кустистых и листоватых эпифитов из экологической группы ацидофилов к насаждениям березы в изученных техногенных ландшафтах. Предложены некоторые меры охраны выявленных редких видов лишайников.
Hematit parçacıkların kısa ve görünür dalga boyundaki ışınım ve düşük sıcaklıklardaki ısıl özellikleri
Authors: AYGAHOĞLU Agah , DÖNER Nimeti , PARGAN Ali Rıza
Published: January 2021

Bu çalışmada 900-1100 °C sıcaklıklarda basınçlı alın kaynak (flash butt welding) işlemi sonucunda oluşan ve sistem dışına atılan demir tozlarının, kısa ve görünür dalga boyu aralığındaki ışınım özellikleri ve düşük sıcaklıklardaki ısıl iletkenliği incelenmiştir. Hematit yapısında olan atık demir tozları elek analizi ile parçaçık büyüklüklerine göre ayrıştırılmıştır. Parçacık büyüklüğü en küçük, orta ve en büyük olan çeşitli büyüklüklerdeki numunelerin soğurma (absorbans)-dalga boyu değişimi ve ısıl iletkenlik-sıcaklık değişimi incelenmiştir. Hematit (α-Fe2O3) parçacıklarının, yaşlanma sürecinde oluşan oksidasyon bölgeleri SEM görüntüleri ile tespit edilmiştir. Parçacıkların içeriği ve büyüklüğü ile oksitlenme etkisi, numunelerin ışınım özelliklerinin dalga boyu ile değişiminde ve ısıl iletkenlik katsayısının sıcaklıkla değişiminde etkili olduğu görülmüştür. Atık hematit parçacıklarının ışınım ve ısı iletim özellikleri parçacık büyüklüğü artıkça artmaktadır. Ancak ışınım özelliği artan dalga boyu ile ısı iletim özelliği de artan sıcaklıkla azalmaktadır.
Research of Strength, Service Life and Reliability of Crane Metal Structures: Overview and Results
Authors: Moskvicheva Lyudmila F. , Chernyakova Natalya A.
Published: January 2021

The results of research and a development retrospective of the regulatory framework for the design and calculation of crane metal structures are presented. The cause-and-effect complex of bridge crane failures is considered, as well as research directions within the framework of the computational and experimental complex in the field of strength, reliability, dynamics, and analysis of the stress-strain state of fatigue strength are analyzed. The results of experimental fatigue studies of samples and models of crane structures are presented. The methodology of calculations for crack resistance and reliability is given on the example of the support unit of the end beam of a bridge crane
The Alternative Method of Conditioning Industrial Wastewater Containing Heavy Metals Based on the Hydrothermodynamic Cavitation Technology
Authors: Dubrovskaya Olga G. , Kulagin Vladimir A. , Limin Yao
Published: January 2021

This article provides the results of studies of modifying the physicochemical properties of industrial wastewater when treated in a cavitation reactor. The authors performed an analysis of physicochemical changes in the makeup of industrial effluent and defined the efficiency of reducing the content of heavy metal ions under various modes of hydrothermodynamic action. The article also proposes the methods of mathematical modelling for determining the optimal parameters of cavitation treatment of wastewater and reveals the advantages of upgrading the wastewater process equipment with the inclusion of a unit of SC-reactors
A ação do agente ou o agente da ação? Presos sem condenação na periferia de Alagoas
Authors: Lima Débora Nunes de Sousa , Lages Anabelle Santos
Published: January 2021

Sabe-se que os principais alvos do encarceramento provisório são os praticantes de crimes patrimoniais. Mas há diferenças entre eles? Esta pesquisa buscou conhecer o perfil dos presos sem condenação, acusados de furto e estelionato. A escolha dos crimes ampara-se no fato de que, embora o processo penal brasileiro impute penas semelhantes a ambos os tipos penais, o sistema de justiça tem acolhido de maneiras distintas um e outro caso. A hipótese desta pesquisa é a de que o agente da ação, e não a ação em si, tem sido objeto de punição.
A COMPLEX OF EXERCISES TO DEVELOP ENGLISH PROSODIC SKILLS IN SPEAKING IN HIGH SCHOOL STUDENTS
Authors: Ponomarova Vira , Alona Sikorska Alona
Published: January 2021

Background: The importance of mastering good pronunciation is undeniable. According to the current curricular for secondary schools, high school students have to produce phonetically correct speech. The purpose of studying phonetics is to shape the standard phonetic image of the phonemes and intonation patterns and make use of them in speech. The observation of the educational process shows that the level of prosodic competence of high school students in Ukraine is quite low, the special exercises and tasks for improving the pronunciation skills in textbooks are almost not presented.

Purpose: The objective of this paper is to develop a complex of exercises to teach prosody and intonation at high school. The authors examine the differences between English and Ukrainian prosodic constituents, and on the basis of this analysis suggests the ways to master each component in the developed tasks.

Results and Discussion: By focusing on certain differences between the prosodic systems of the English and Ukrainian languages the study presented in the article has provided possible ways to improve the prosodic skills of high school students. The further perspective of the study relates to developing, expanding, piloting and modifying tasks and exercises for mastering prosody
Anatomical study of the central origins of the abducent nerve (nerviabducentis)
Authors: Gerver A. V.
Published: January 2021

The question of the course of the central roots of the abducting nerves, as well as of the connections of these nerves with the cerebral cortex, seems to be far from being developed at the present time.
For casuistic cases of pronounced Cheyne - Stokes respiration in case of diffuse organic lesions of the brain
Authors: Charnetskiy F. F.
Published: January 2021

We had to observe a case of a very pronounced and prolonged Cheyne-Stokes breathing in a patient, representing the manifestation of diffuse organic lesion of the brain with simultaneous organic suffering of the heart and lungs. Since this case, in our opinion, is rare, then we allow ourselves to give a description of it here.
Development and current state of the science on pathological and anatomical changes in dorsal tabes
Authors: Shtern Nikolay
Published: January 2021

Strictly adhering to the chronological order, for greater clarity, I divide the history of the study of pathological changes in dorsal dryness into four periods.
BİTKİ BİYOÇEŞİTLİLİĞİNİN KORUNMASINDA BİYOTEKNOLOJİNİN KULLANIMI VE TÜRKİYE’DEKİ ÇALIŞMALAR
Authors: BÜRÜN Betül
Published: January 2021

Doğa, çeşitli faktörlerin etkisi ile tahrip edilmekte bu da biyoçeşitlilik kayıplarına neden olmaktadır. Biyoçeşitlilik kayıplarının dünyada ciddi bir problem olması nedeniyle Uluslararası Doğayı Koruma Birliği (IUCN) bu konuda birtakım çalışmalar yapmaktadır. Biyoçeşitlilik kayıplarını önlemek için in situ ve ex situ koruma stratejileri geliştirilmiştir. Ex situ korumada, tohum gen bankaları ve arazide bitki koleksiyonları uygulamaları gibi geleneksel yöntemlerin yanısıra modern yöntemlerin de önemli bir yeri vardır. Özellikle yok olma tehlikesi altında olan türlerin korunmasında ex situ koruma stratejileri kapsamında in vitro teknolojinin kullanılması önemli avantajlar sunmaktadır. Bitki materyalini toplamada, çoğaltmada, uluslararası değişimde ve muhafaza etmede in vitro tekniklerden yararlanılmaktadır. Bu derlemede, in vitro teknikler kullanarak bitki biyoçeşitliliğin korunması ve Türkiye’deki çalışmalar sunulmuştur.
ASSESSING THE DIVERSITY OF PROKARYOTIC COMMUNITIES AND NANOHALOARCHAEAL LINEAGES IN VARIOUS AQUATIC HYPERSALINE HABITATS (TURKEY) USING HIGH-THROUGHPUT SEQUENCING AND CLONING
Authors: ÇINAR Seval , MUTLU Mehmet Burçin
Published: January 2021

IIn this study, distribution of the prokaryotic groups in Tuz Lake, Ayvalık and Tuzlagözü solar salterns was investigated using 16S rRNA gene targeted approaches. The relative abundance of prokaryotic taxa in the samples was detected by using high-throughput sequencing. Operational taxonomic units (OTUs) associated with Haloquadratum were the most abundant in MiSeq reads. Nanohaloarchaeota-related OTUs were rare (<1%) in Ayvalık and Tuzlagözü solar salterns, and around 5% in Tuz Lake. Other OTUs frequently found and shared in the samples were associated with Halorubrum, Halonotius and Salinibacter genera. Nanohaloarchaeota lineages, whose phylotypes have been frequently detected in diverse hypersaline environments, were examined in more detail by 16S rRNA gene cloning using group-specific primer. Some of the highly represented nanohaloarchaeal phylotypes in the clone libraries showed low similarity to any sequence in the database, generating two distinct clades. One of the novel lineages was found to be prominent in the clone library constructed from Ayvalık sample. Phylotypes showing 95-97% sequence similarity to Ca. Nanopetramus were also highly represented in Ayvalık. Phylotypes frequent in the clone libraries of Tuz Lake and Tuzlagözü samples were associated with a novel lineage, as well as Ca. Nanosalina and its relatives.
Evaluation of the effectiveness of transforaminal epidural steroid injection in far lateral lumbar disc herniations
Authors: Evran Sevket , Katar Salim
Published: January 2021

Far lateral lumbar disc herniations (FLDH) consist approximately 0.7-12% of all lumbar disc herniations. Compared to the more common central and paramedian lumbar disc herniations, they cause more severe and persistent radicular pain due to direct compression of the nerve root and dorsal root ganglion. In patients who do not respond to conservative treatments such as medical treatment and physical therapy, and have not developed neurological deficits, it is difficult to decide on surgical treatment because of the nerve root damage and spinal instability risk due to disruption of facet joint integrity. In this study, we aimed to evaluate the effect of transforaminal epidural steroid injection (TFESI) on the improvement of both pain control and functional capacity in patients with FLDH. A total of 37 patients who had radicular pain caused by far lateral disc herniation which is visible in their lumbar magnetic resonance imaging (MRI) scan, had no neurological deficit and did not respond to conservative treatment, were included the study. TFESI was applied to patients by preganglionic approach. Pre-treatment Visual Analogue Scale (VAS) and Oswestry Disability Index (ODI) scores of the patients were compared with the 3rd week, 3rd month and 6th month scores after the procedure. The mean initial VAS score was 8.63 ± 0.55, while it was 3.84 ± 1.66, 5.09 ± 0.85, 4.56 ± 1.66 at the 3rd week, 3rd month and 6th month controls, respectively. This decrease in the VAS score was found statistically significant (p = 0.001). ODI score with baseline mean value of 52.38 ± 6.84 was found to be 18.56 ± 4.95 at the 3rd week, 37.41 ± 14.1 at the 3rd month and 34.88 ± 14.33 at the 6th month. This downtrend of pa­tient’s ODI scores was found statistically significant (p = 0.001). This study has demonstrated that TFESI is an effective method for gaining increased functional capacity and pain control in the treatment of patients who are not suitable for surgical treatment with radicular complaints due to far lateral lumbar disc hernia.
An In-Silico Study on the Most Effective Growth Factors in Retinal Regeneration Utilizing Tissue Engineering Concepts
Authors: Beheshtizadeh Nima , Baradaran-Rafii Alireza , Sharifi Sistani Maryam , Azami Mahmoud
Published: January 2021

Purpose: Considering the significance of retinal disorders and the growing need to employ tissue engineering in this field, in-silico studies can be used to establish a cost-effective method. This in-silico study was performed to find the most effective growth factors contributing to retinal tissue engineering.
Methods: In this study, a regeneration gene database was used. All 21 protein-coding genes participating in retinal regeneration were considered as a protein–protein interaction (PPI) network via the “STRING App” in “Cytoscape 3.7.2” software. The resultant graph possessed 21 nodes as well as 37 edges. Gene ontology (GO) analysis, as well as the centrality analysis, revealed the most effective proteins in retinal regeneration.
Results: According to the biological processes and the role of each protein in different pathways, selecting the correct one is possible through the information that the network provides. Eye development, detection of the visible light, visual perception, photoreceptor cell differentiation, camera-type eye development, eye morphogenesis, and angiogenesis are the major biological processes in retinal regeneration. Based on the GO analysis, SHH, STAT3, FGFR1, OPN4, ITGAV, RAX, and RPE65 are effective in retinal regeneration via the biological processes. In addition, based on the centrality analysis, four proteins have the greatest influence on retinal regeneration: SHH, IGF1, STAT3, and ASCL1.
Conclusion: With the intention of applying the most impressive growth factors in retinal engineering, it seems logical to pay attention to SHH, STAT3, and RPE65. Utilizing these proteins can lead to fabricate high efficiency engineered retina via all aforementioned biological processes.
Autologous Neurosensory Retinal Transplantation: A Report of Three Cases
Authors: Ndubuisi Okonkwo Ogugua , Olobola Hassan Adekunle , Akanbi Toyin
Published: January 2021

Purpose: To present the anatomical and functional outcomes of autologous surgical transplantation of a free neurosensory retinal graft in three cases of recurrent and chronic full thickness macular hole (MH).
Method: A retrospective case series, reporting the profile, preoperative presentation, surgical technique, and postoperative outcome of three consecutive eyes of three patients who had autologous retina transplantation (ART) surgery for recurrent and chronic MHs, and had a minimum of six months follow-up. The technique involved excision of a free neurosensory graft after laser demarcation of the harvest site. The graft was slid under perfluorocarbon liquid (PFCL) into the MH. A five-day tamponade with PFCL was used to secure the graft within the MH and then exchanged with air.
Results: The patients were one female and two males aged 60, 44, and 67 years, respectively. All eyes had a successful surgery. Postoperative vision improved from 6/36 to 6/18 in patient 1 and remained the same as a preoperative vision in the other two eyes. No eye lost vision postoperatively. The main complication of surgery was the occurrence of retinal and vitreous hemorrhage in one eye (this did not appear to jeopardize the outcome) and retraction of graft tissue in two eyes.
Conclusion: ART appears to be a safe and effective treatment for difficult MHs. Our results are comparable to previous studies. Short-term use of PFCL can be useful to secure the graft within the MH. Methods of improving visual function should be the focus of further research in this promising area.
Surgical Management of Glaucoma Secondary to Bilateral Acute Iris Transillumination: A Role for Gonioscopy-assisted Transluminal Trabeculotomy
Authors: Wey Stephanie , Flamendorf Jason , Sinha Sapna , Lee Daniel
Published: January 2021

Purpose: We report a case of bilateral acute iris transillumination (BAIT) in a young woman associated with ocular hypertension which eventually progressed to glaucoma that was treated with gonioscopy-assisted transluminal trabeculectomy (GATT).
Case Report: A 37-year-old otherwise healthy female presented with intermittently red and inflamed eyes and blurred vision. She was treated with oral moxifloxacin months prior to presentation. Iris transillumination defects, a pigmented anterior chamber reaction, the absence of keratic precipitates, and a history of upper respiratory infection treated with an oral fluoroquinolone prompted the diagnosis of BAIT. Intraocular pressure (IOP) remained uncontrolled on multiple glaucoma medications. Following the development of new visual field defects, indicating progression to glaucoma, GATT with cataract extraction was performed.
Conclusion: Although surgical intervention is rare with BAIT, our case demonstrates that GATT may be used effectively in those patients needing better IOP control before considering incisional glaucoma surgery.
Heads-up Digitally Assisted Surgical Viewing with Intraoperative Optical Coherence Tomography for Myopic Schisis Repair
Authors: Menezes Palácios Renato , Vieira Kayat Kim , Eid Farah Michel , Devin François
Published: January 2021

Purpose: To describe the surgical approach with a screen-based heads-up, threedimensional (3-D) digital viewing with intraoperative optical coherence tomography (IOCT) for the successful repair of a myopic macular schisis (MMS) case.
Case Report: A 62-year-old woman with vision loss in the left eye was scheduled for pars plana vitrectomy (PPV) and MMS repair. Surgery was performed using the NGENUITY® system for surgical viewing, and foveal-sparing internal limiting membrane (fs-ILM) peeling was performed without gas tamponade, after confirming the absence of iatrogenic macular hole with I-OCT. There were no intraoperative or postoperative complications. Visual acuity improved to 20/40 and the subfoveal macular thickness improved from 706 μm (preoperative) to 221 μm after seven months of follow-up.
Conclusion: Heads-up digitally assisted viewing technology with I-OCT may be useful or preferred for patients requiring vitreoretinal surgery in the setting of MMS.
Oguchi Disease Associated with Keratoconus
Authors: Mirshahi Ahmad , Hassanpoor Narges , Khojasteh Hassan , Reza Baradaran Mohammad , Faghihi Hooshang , Lashay Alireza
Published: January 2021

This is a Photo Essay and does not have an abstract. Please download the PDF or view the article in HTML.
The Association between Polymorphism-119G>A of the Alpha-Fetoprotein Gene and Increased Serum Alpha- Fetoprotein Level: A Case Control Study
Authors: Yavari Mahdieh , Zakeri Saghar , Mazaheri Mahta
Published: January 2021

Background: Alpha-fetoprotein is produced during pregnancy by the yolk sac, and then by the fetal liver. This hormone is secreted from early pregnancy, but its level of measurement is important from 15 to 21 weeks of gestation. The secretion of this hormone is very important because an increase in this hormone is associated with neural tube defects (NTDs) in the fetus. In this study, we analyzed the association between polymorphism-119G>A in the alpha-fetoprotein (AFp ) gene with increased AFP levels in mothers with no neural tube defects in their fetus.Methods: Participants were 50 pregnant women who had high alpha-fetoprotein but no neural tube defects in their fetus (the case group) and 50 pregnant women that their alpha fetoprotein was normal with no neural tube defects in their fetus (control group). After DNA extraction, the fragment including the desired polymorphism was amplified using the PCR technique, and then sequenced.Results: The results of this study showed that there was no significant relationship between this polymorphism and the increase in alpha fetoprotein in the study population.                                               Conclusion: Future studies are needed to investigate other polymorphisms with higher specimens, and the relationship between this polymorphism, and the survival rate of pregnant mothers in the Iranian population.
Association of -634 C/G Polymorphism at Vascular Endothelial Growth Factor Gene with Risk Retinopathy of Prematurity
Authors: Ghadyani Mohammadamin , Noorishadkam Mahmood , Hosseini-Jangjou Seyed Hamed , Bahrami Reza , Akbarian Elahe , Saeida-Ardekani Maryam , Neamatzadeh Hossein , Zare Zahra
Published: January 2021

Background: Retinopathy of prematurity (ROP) is a major cause of blindness in newborn infants worldwide. It is well known that neovascularization of the retina is prominent in the proliferative stages of ROP. It is suggested that vascular endothelial growth factor (VEGF) may play a role in the development of ROP. The aim of this study was to evaluate the association of the VEGF -634C/G polymorphism at VEGF with risk of ROP.
Methods: In the study 54 neonates diagnosed with ROP and 55 healthy neonates served as controls. The VEGF -634 C/G polymorphism was genotyped by restriction fragment length polymorphism (PCR-RFLP) technique.
Results: The CC, CG, and GG genotypes of VEGF -634C/G polymorphism were found in 33.3%, 38.9%, and 27.8% of neonates with ROP, respectively. In controls, CC, CG, and GG genotypes were seen in 43.6%, 45.4%, and 10.9%, respectively. Frequency of mutant allele (C) was 52.8% in neonates with ROP and 66.4% in healthy neonates. There was a significant difference in the distribution of VEGF -634C/G polymorphisms between cases and controls. Moreover, there was a significant association between VEGF -634C/G polymorphisms and ROP risk (OR = 3.141, 95% CI 1.115-8.851, P = 0.030).
Conclusion: This study results revealed that VEGF -634C/G polymorphism might serve as a risk factor for development of ROP. Thus, clinicians should be aware of the ROP risk in infant with the VEGF -634C/G polymorphism and ROP risk in infants. However, large sample size and well-designed studies are necessary to validate our findings.
Three Patients with CPT1A Deficiency: Literature Review and Case Series
Authors: Mirhosseini Naser Ali , Saatchi Mahdieh , Taghiyar Sana
Published: January 2021

Background: Carnitine palmitoyltransferase 1A deficiency is a rare genetic disorder with autosomal recessive inheritance pattern of fatty acid metabolism secondary to CPT1A mutation. Several dozen infants and children have been described with a deficiency of the liver and kidney CPT1 isoenzyme (CPT1-A). Clinical manifestation includes fasting-induced hypoketotic hypoglycemia, occasionally with extremely abnormal liver function test (LFT) and rarely with renal tubular acidosis. Acyl carnitine analysis has been the main method for the diagnosis of CPT1A deficiency.  Prompt treatment of hypoglycemia includes intravenous fluid containing 10% dextrose. To prevent hypoglycemia, infants should eat frequently during the day and have cornstarch continuously at night. Fasting should not last more than 12 hours during illness, surgery, or medical procedures.
Case Presentation: We reported three patients with CPT1A deficiency presented with hypoglycemia and Reye like syndrome in early childhood that with early diagnosis and treatment they are well in follow-up.
Conclusion: Prognosis of this genetic disorder will be good with appropriate treatment.
Investigação Narrativa (Auto)Biográfica como modo de Percepção da Constituição Docente Ambiental e Crítica
Authors: Günzel Rafaela Engers , Dorneles Aline Machado
Published: January 2021

Assume-se a investigação narrativa (auto)biográfica como modo de documentar, pela escrita, as experiências ambientais da formação docente. Desse modo, no presente texto apresenta-se as narrativas das experiências envolvendo a Educação Ambiental na formação inicial de uma professora-pesquisadora, as quais mostram, que a temática da sua pesquisa de mestrado está relacionada com as experiências ambientais vividas no contexto escolar e acadêmico reforçando a perspectiva de investigação a partir das memórias e narrativas na formação docente. Para isso, pauta-se nos pressupostos teóricos metodológicos da pesquisa narrativa como modo de interpretar as experiências ambientais da professora-pesquisadora. Da análise emerge compreensões relacionadas a formação docente ambiental, possíveis pela partilha de um processo narrativo (auto)biográfico com  algumas narrativas revividas e recontadas ao resgatar o diário de formação da professora-pesquisadora, escritas essas, realizadas durante o período em que atuou como bolsista do Programa de Educação Tutorial (PET) – grupo PETCiências – ainda na graduação em Química Licenciatura na Universidade Federal da Fronteira Sul (UFFS). Argumenta-se que o ato de documentar a experiência de formação mostra às potencialidades da pesquisa narrativa e reafirma a importância da escrita (auto)biográfica no processo de investigação. É possível apontar que a utilização da escrita no diário compõe um recurso que auxilia nos processos de constituição docente e reforça a aposta na docência ambiental.
Investigations into Foot and Mouth Disease Outbreak among Small Ruminants in Karnataka State of India
Authors: Hegde Raveendra , Shivashankar B.P. , Gautham N. , Praveenkumar G.R. , Rajasekar B. , Muniyellappa H.K. , Byregowda S.M. , Hosamani Madhusudan , Selvan R.P. Tamil , Sanyal Aniket
Published: January 2021

Background: Foot-and-Mouth Disease (FMD) remains a serious threat to the Indian livestock sector due to significant economic loss associated with it. Systematic vaccination of large ruminants over the years has lead to a gradual reduction in the number of disease outbreaks in India. However exposure to FMDV infection in small ruminants has been recorded during the past few years (Rout et al., 2013). Sheep and goat population have not been vaccinated so far against FMD under the FMD-Control program (FMD-CP). The present study highlighted the outbreak of FMD in small ruminants in Karnataka, India. Methods: During the period 2018-19, seven suspected FMD outbreaks among sheep population in Bellary and Tumakuru districts of Karnataka state were investigated. Tongue epithelium (oral swabs) and foot lesions (n=23) from clinically affected sheep and tissues such as heart, lung, liver, spleen, lymph nodes and kidneys from lambs during post mortem (n=67) were collected. All the samples were processed in the laboratory for the detection of FMD virus antigen by employing Serotype differentiating antigen detection ELISA and by multiplex PCR. Heart tissue samples were also collected in buffered formalin for histopathology study and processed by routine paraffin embedding technique and stained with Hematoxylin and Eosin (H and E). Serum samples from the recovered animals were collected and screened by NSP-ELISA and LPB-ELISA to check the antibody status in the affected herd. Result: A total of seven suspected outbreaks of FMD involving 688 small ruminants was investigated. The outbreak of FMD due to FMDV serotype O was confirmed by ELISA and multiplex PCR assays. Clinically, the affected adult sheep showed typical signs of FMD, while mortality in young lambs was observed without apparent signs of disease. Histologically, heart tissues from FMD affected lambs showed myocardial necrosis with marked aggregations of lymphocytes and neutrophils in the myocardium and perivascular spaces. History of FMD outbreaks in cattle and common grazing land for the livestock, as well as sheep within the reach of these villages, may be the major contributing factors for the outbreaks in sheep populations.
Impact of Malt Barley Varieties on Malt Quality: A Review
Authors: Gebeyaw Mekonnen
Published: January 2021

The greatest use of barley for malting purpose mostly for brewing industry. The quality of malt depends upon various grain parameters as kernel shape, size, boldness, grain protein content etc., which affects the malt quality that is malt yield, friability, homogeneity.The availability of barley for malting is not a problem, but whatever barley is available it is very poor interims of quality and not meeting the minimum standards of malting quality. So, that identification of malt barely varieties with different grain and malt parameters, which are desired for better malt production and quality improvement, needed for various products is very essential. Potential areas that boost the production, pertinent agronomic practice studies and strengthening micro malting laboratory and expert capacity are recommended to overcome the limitations of malt barley production and malt quality improvement.
Monitoring Plasma Metabolic Profile, Fertility in Normal and Estrus Synchronized Suckled Kankrej Cows
Authors: Naikoo Mehrajuddin , Dhami A.J. , Parmar B.C.
Published: January 2021

Background: Postpartum fertility in dairy bovines is one of the important criteria of sustainable dairy industry and economy of farmers. The Kankrej, a dual purpose zebu cattle, is known for its endurance, but is slow breeder with very late maturity, prolonged postpartum anestrous/subestrous and thereby calving interval. These peculiarities necessitate scientists to adopt fixed time AI (FTAI) protocols of estrus synchronization for improving their reproductive efficiency. Hence this study was aimed to assess the fertility and plasma metabolic profile of normal and synchronized anestrous/ subestrous suckled Kankrej cows of an organized farm. Methods: The study involved 36 parturient Kankrej cows of the University Farm that were maintained under identical nutritional and managerial practices. Blood samples were collected in heparinized vacutainers from all the animals on the day of calving and then at 10 days interval till 90 days for plasma metabolic profile. Animals monitored by per rectal palpation 10 days apart around day 70-80 postpartum revealed 30 cows to be anestrous or subestrous, which were randomly allocated to five different estrus synchronization protocols at day 90-92, each with six cows and a group of six cows that exhibited estrus and were bred by day 70-90 served as normal control. The treatment protocols included Ovsynch, CIDR, Ovsynch + CIDR, Cosynch and double PGF2α together with estimation of plasma metabolites on day 0, 7, 9/10 (AI) and then at 10 days interval up to day 40 post-AI. Result: The mean plasma total protein levels varied non-significantly, while total cholesterol and triglycerides varied significantly (p less than 0.01) between intervals until 90 days postpartum in most of the groups with gradual increase in the mean values from the day of calving. The estrus synchronization protocols, however. did not alter the plasma profile of these constituents. The estrus induction response with Ovsynch, CIDR, Ovsynch + CIDR, Cosynch and PGF2α treatment was 66.66, 83.33, 50.00, 66.66 and 66.66% and the conception rates at induced estrus 16.66, 33.33, 16.66, 50.00 and 50.00%, respectively. In normal cyclic control group, the conception rate at first cycle was 33.33%. The plasma total cholesterol and triglycerides were higher in conceived than non-conceived cows, particularly during early postpartum period and post-AI. It was concluded that CIDR, Cosynch and PGF2α protocols were better for estrus induction and conception rate in anestrous and subestrous suckled Kankrej cows, although they did not influence the plasma metabolic profile.
Identification of Transgressive Segregants and Variability Studies in Segregating Generations of Four Crosses in Chickpea
Authors: Sundaram P. , Samineni S. , Sajja S.B. , Singh S.P. , Joshi P. , . Shweta , Gaur P.M.
Published: January 2021

Background: An impressive progress has been made in development and promotion of extra-large kabuli chickpea varieties in India during the past decade. As a result, India has become from importer to exporter of kabuli chickpea. The breeding programmes need to continue efforts on enhancing genetic gain in breeding kabuli chickpea varieties through increasing genetic variability and precision and efficiency of selection. This study was aimed at evaluating early segregating generations of chickpea to assess genetic variability for various important traits. Methods: Four large-seeded kabuli chickpea genotypes (JGK 2, KAK 2, KRIPA and ICC 17109); were crossed with a common small-seeded kabuli genotype (ICC 16644). F1, F2 and F3 along with parents were evaluated under normal field conditions and observations were recorded on various phenological, morphological and yield traits. Data was analysed to estimate genetic variability, heritability and genetic advance in the segregating populations. Result: Considerably high variability was observed in F2 and F3 populations of all the crosses. Heritability estimates in broad sense were high coupled with high genetic advance as per cent of mean for days to first flower, days to pod initiation, number of pods per plant, number of seeds per plant and 100-seed weight which indicated the presence of additive gene action for these traits. Large number of transgressive segregants was identified for number of seeds per plant followed by number of pods per plant and yield per plant. The most promising transgressive segregants could be used in future breeding programme.
О ГЛАГОЛСКИМ ЛЕКСЕМАМА СА ПРЕФИКСИМА НА-, НАД- И О- У СРПСКОМ ЈЕЗИКУ И ЊИХОВИМ РУСКИМ И ЕНГЛЕСКИМ ПРЕВОДНИМ ЕКВИВАЛЕНТИМА
Authors: Полић Катарина Р.
Published: January 2021

У раду се анализира семантика глаголских лексема у чијој творбеној структури срећемо префиксе на-, над- и о- у српском језику, а затим се они путем контрастивне анализе упоређују са преводним еквивалентима у руском и енглеском језику. Основу рада чине глаголи прикупљени из романа На Дрини ћуприја, а циљ истраживања је утврђивање у којој мери је адекватан превод глагола са поменутим префиксима у руском и енглеском језику у односу на српски језик, односно да ли су преводиоци приликом превода успели да пренесу све компоненте значења одређених глагола. Циљ рада је и указивање на евентуалне преводне еквиваленте који би успешније пренели значење глагола у други језик. На основу резултата добијених контрастивном анализом дошли смо до закључка који је потврдио полазну хипотезу а то је да је у српском и руском језику, као језицима из исте, словенске групе језика, сличност и подударање знатно веће у односу на енглески језик, као језик из германске групе, у коме су глаголске лексеме са поменутим префиксима изражене синтаксичким конструкцијама и фразним глаголима, а ређе глаголима са префиксима.
Influence de l'exposition à un risque trypanosomien élevé sur la reproduction de vaches Baoulé au Burkina Faso
Authors: Chicoteau P. , Bassinga A. , Sidibé Issa , Pobel T. , Richard X. , Clausen P.
Published: January 2021

La trypanosomose animale a une influence sur la fonction de reproduction, y compris celle des bovins trypanotolérants. Ainsi l'exposition à un fort risque trypanosomien entraîne des avortements et des anoestrus chez la femelle Baoulé, bovin trypanotolérant à courtes cornes. Ces perturbations, observées systématiquement chez les animaux sensibles à la maladie et chez quelques animaux résistants, semblent liées à la dégradation de l'état général, à l'anémie et à l'hyperthermie. On constate enfin une importante variation individuelle du comportement des animaux vis à vis de la maladie.
Note faunistique sur les Culicoides de Guyane (Diptera : Ceratopogonidae)
Authors: Waller J. , Lancelot Renaud , Lefèvre Pierre-Charles , Kremer M.
Published: January 2021

A l'occasion d'une étude sur la prévalence de la "Blue tongue" en Guyane, les auteurs effectuent un relevé faunistique des espèces de Culicoides qui doivent être, pour certains d'entre eux, inféodés au bétail. Ces espèces ont été capturées dans deux biotopes d'élevage de ruminants, l'un sylvatique, l'autre côtier. Après un rappel des principaux caractères morphologiques de chaque espèce, les résultats sont comparés aux études antérieures et une clef des vingt-cinq espèces recensées actuellement en Guyane est proposée.
Enquête sérologique sur la prévalence des anticorps contre Brucella abortus chez le dromadaire (Camelus dromedarius) à l'est du Soudan
Authors: Yagoub I.A. , Mohamed A.A. , Salim M.O.
Published: January 2021

Durant cinq ans, une enquête sur la prévalence des anticorps dirigés contre Brucella dans les sera de camélidés a été effectuée chez 1502 dromadaires des deux sexes et d'âges différents. Le taux d'incidence moyen de réactions positives était de 6,95 + ou - 1,55 p. 100. Parmi les animaux adultes, le taux était de 4,94 + ou - 2,51 p. 100 chez les mâles et de 13,76 + ou - 4,41 p. 100 chez les femelles. Les jeunes mâles ont montré un taux de 0 p. 100 et les jeunes femelles un taux de 1,82 + ou - 3,64 p. 100. La présence d'anticorps dirigés contre Brucella abortus s'est révélée prédominante dans les sera des dromadaires durant les cinq années de l'enquête avec un taux d'incidence de 6,54, 5,79, 9,32, 5,03 et 8,06 p. 100 de 1985 à 1989 respectivement.
Effet des facteurs température et nutrition azotée sur la croissance des plantes fourragères tropicales. I. Variation saisonnière de la croissance d'une graminée tropicale, Brachiaria mutica, au Sénégal
Authors: Mandret Gilles , Ourry A. , Roberge Guy
Published: January 2021

La croissance en climat sahélien subcanarien d'une graminée tropicale, Brachiaria mutica, a été étudiée pendant la saison sèche froide (novembre-m a rs), la saison sèche chaude (mars-mi-juillet) et la saison des pluies (mi-juillet-octobre). L'essentiel des résultats montre que cette graminée a une faible productivité en saison sèche froide, du fait de températures minimales très basses, contrairement à celles obtenues en saisons des pluies. Par ailleurs, il semble qu'il y ait une déplacement du facteur limitant (températures minimales basses) vers un effet azoté qui témoigne de la faible disponibilité en azote du sol pendant la saison froide et de l'importance d'une fertilisation azotée. Cette étude souligne l'intérêt d'introduire, lors de la saison sèche froide, des plantes fourragères des régions tempérées, moins exigeantes vis-à-vis de la température.
Note sur la variole caprine au Tchad : étude des foyers
Authors: Bidjeh K. , Ganda K. , Diguimbaye C. , Idriss A.
Published: January 2021

Plusieurs foyers de variole caprine ont été observés dans différents villages de la région de N'Djamena, de 1985 à 1989. La souche qui a sévi dans cette région semble être spécifique aux chèvres car les moutons en contact avec les chèvres n'ont pas contracté la maladie. Néanmoins, une étude expérimentale du pouvoir pathogène du virus isolé chez une des chèvres mérite d'être faite pour les moutons.
Parasitémie et manifestations cliniques chez des chiens infectés par Trypanosoma brucei
Authors: Nwosu C.O. , Ikeme M.M.
Published: January 2021

Quatre chiens ont été infectés par Trypanosoma brucei (souche Mkar), et quatre autres ont servi de témoins. Deux des chiens ont manifesté la maladie de façon aiguë et sont morts au cours de la 1ère vague de parasitémie aux 7e et 8e jours après l'infection, et que les autres de maladie sub-aiguë aux 24e et 28e jours après l'infection, correspondant à la 2e vague de parasitémie. Au cours de la 1ère vague, l'hématocrite, la numération érythrocytaire, l'hémoglobine, la numération leucocytaire totale, le nombre d'éosinophiles, neutrophiles et lymphocytes ont diminué; au cours de la période intermédiaire de faible parasitémie, les valeurs des leucocytes totaux et des lymphocytes ont remonté légèrement, bien qu'elles aient rediminué ensuite de façon continue, de même que les autres valeurs, au cours de la 2ème vague de parasitémie. En revanche, il existait une monocytose constante dans les maladies aiguë et sub-aiguë. Globalement, la maladie s'est manifestée par une altération de l'état général, une anémie, une leucopénie, une monocytose, des troubles oculaires, une élévation de la température et des fréquences cardiaques et respiratoires. La différence entre les manifestations aiguë et sub-aiguë a été dans leur degré d'intensité. L'importance de l'anémie et les troubles circulatoires associés à l'infection pourraient être à l'origine de la mort de tous les animaux infectés.
Prévalence des nématodoses gastro-intestinales chez le dromadaire (Camelus dromedarius) dans les plaines du Butana au Soudan
Authors: Fadl M. , Magzoub M. , Burger H.J.
Published: January 2021

La prévalence et l'intensité des nématodoses gastro-intestinales ont été étudiées en relation avec les variations saisonnières et les pluies chez 429 dromadaires femelles présentées sur le marché de Tambul dans les plaines du Butana (Soudan), au cours des années 1985-1986. Cette étude a révélé que la prévalence de l'infection et l'intensité de la ponte des oeufs de nématodes présentent des profils saisonniers comparables. Ce caractère saisonnier est principalement dû à Haemonchus spp. et Impalaia spp., alors que Trichostrongylus spp. semble présent toute l'année (sous forme adulte). Il existe une bonne corrélation entre l'élévation du nombre d'oeufs et les pluies, qui assurent un développement optimal des stades pré-parasitaires.
Cinétique d’absorption et d’élimination de la gentamicine chez le bufflon (Bubalus bubalis) après administration parentérale répétée
Authors: Garg Satish K. , Garg B.D.
Published: January 2021

La cinétique d'absorption et d'élimination de la gentamicine a été déterminée chez des bufflons après administration parentérale répétée de 5 mg/kg de poids vif. Les demi-vie d'absorption (t 1/2Ka) et d'élimination (t 1/2 béta) ont été respectivement de 0,40 + ou - 0,12 et 4,33 + ou - 0,39 h. La comparaison statistique des valeurs des déterminants pharmacocinétiques établis dans la présente étude, avec les valeurs correspondantes obtenues après une seule injection intramusculaire de la même dose que dans une étude antérieure de Garg et Garg en 1990, a révélé que l'administration répétée de gentamicine influence son profil pharmacocinétique, la demi-vie d'élimination étant statistiquement plus longue (P < 0,05). La valeur constante du taux d'élimination étant diminuée, les doses ultérieures doivent être réduites, en particulier en cas d'insuffisance rénale. Dans le cas contraire, les doses de gentamicine à administrer n'ont pas lieu d'être modifiées.