bluuebunny/crossref_metadata_2025 huggingface dataset:
Impacts of hydrodynamic conditions and surface roughness on the critical conditions and thickness of early-stage biofilm development
Authors: Wei Guanju , Yang Judy Q.
Published: September 2022

Biofilms can increase pathogenic contamination of drinking water, cause
biofilm-related diseases, alter the sediment erosion rate, and degrade
contaminants in wastewater. Compared with mature biofilms, biofilms in
the early-stage have been shown to be more susceptible to antimicrobials
and easier to remove. Mechanistic understanding of physical factors
controlling early-stage biofilm growth is critical to predict and
control biofilm development, yet such understanding is currently
incomplete. Here, we revealed the impacts of hydrodynamic conditions and
surface roughness on the development of early-stage Pseudomonas
putida biofilm through a combination of microfluidic experiments,
numerical simulations, and fluid mechanics theories. We demonstrated
that early-stage biofilm growth is suppressed under high flow conditions
and that the critical local velocity for early-stage P. putida
biofilms to develop is about 50 μm/s. We further illustrated that
micron-scale surface roughness promotes the growth of early-stage
biofilm by increasing the area of the low-flow region. Furthermore, we
showed that the critical average shear stress, above which early-stage
biofilms cease to form, is 0.9 Pa for rough surfaces and 0.3 Pa for flat
or smooth surfaces. The important control of flow conditions and surface
roughness on early-stage biofilm development, characterized in this
study, will facilitate future predictions and control of biofilm
development on the surfaces of drinking water pipelines, blood vessels,
and sediments.
Post-fire erosion and sediment yield in a Mediterranean forest catchment in Italy
Authors: Castelli Giulio , Mastrolonardo Giovanni , Certini Giacomo , M. Maxwald , Trucchi Paolo , Foderi Cristiano , A. Errico , Elena Marra , Preti Federico
Published: September 2022

Wildfires are an increasingly alarming phenomenon that affects forests
and agro-ecosystems, generating several cascade effects among which soil
erosion is one of the most deleterious. A robust body of data-based
evidence on post-fire soil erosion and sediment yield at watershed scale
is thus required, especially dealing with areas where wildfires are
particularly frequent, such as the Mediterranean Basin. This study
analyses the impact of the first rains after a large wildfire in terms
of soil erosion and sediment yield at watershed scale in a Mediterranean
area, the Pisan Mountains, Central Italy. Here about 1,000 ha of olive
groves, maquis, maritime pine and chestnut forests burned. Fire severity
was mapped by remote sensing and checked by a field survey. Sediment
yield was assessed by sampling the earthy material deposited upstream a
check dam at the outlet of the watershed. Finally, a hydrological model
was developed in HEC-HMS environment for exploring the relationship
between the erosion-deposition events observed in the watershed and the
rainfall-induced hydrological processes. The first two post-fire rainy
events relocated a high amount of sediments, mostly non-organic, perhaps
already in the stream before the fire, while the subsequent four rains
deposited materials rich in pyrogenic organic matter. Overall, the soil
erosion caused by such six main post-fire rains – the larger of which
had a return time of one year – was estimated to amount to 7.85 t ha
, corresponding to 42% of the watershed average
annual potential erosion rate in normal conditions. This value is lower
than expected and, overall, moderate if compared to other Mediterranean
case studies, possibly because of the nature of soils in the studied
watershed, i.e. shallow and quite stony, thus poor in fines prone to
erosion.
Correlation between transillumination echocardiography and pathologic anatomy in a left atrial myxoma: a case report
Authors: Bautista-Perez-Gavilan Alejandro , Ibarra-Moreno Andrea , Vives-Ledesma Gabriela , Abril-Vázquez Ana Paola , Singer-De-la-Garza Jethro , Villa-Ramirez Carlos Alberto , Rubalcava-Gracia-Medrano Mariana , Flores-Peralta Jonas Heli , Espinola-Zavaleta Nilda , Fraustro Alberto Aranda , Alexanderson-Rosas Erick
Published: September 2022

Left atrium myxomas are the most frequent heart tumors. Assessment of
this phenomenon is largely echocardiographic, since both TTE and TEE
provide information on size, shape, and hemodynamic consequences of the
tumor. In this publication, we bring forward the similarities between
morphological assessment through transillumination echocardiography and
pathologic anatomy, highlighting a possible study field for the future.
Teachers’ support and students’ perceptions of school connectedness: A multilevel study
Authors: Ninkovic Stefan , Knezevic-Floric Olivera , Djordjic Dejan
Published: September 2022

School connectedness is a significant construct that has various positive
outcomes for students, so it is important to investigate its determinants.
Students? connectedness to school depends on their interaction with
teachers. The aim of this study was to examine the relationship between
teachers? support and students? perceptions of school connectedness.
Participants were 325 students from 29 high school classes. Data were
collected using research tools for assessing students? perceptions of
teachers? support, homeroom teachers? support, and school connectedness.
Multilevel modeling was applied, since students were nested within
classrooms. The obtained results revealed that, after controlling the
effects of gender and type of school, the teacher?s support significantly
predicted the students? connectedness to school at the individual (student)
level. In addition, class-level homeroom teacher?s support was positively
associated with students? school connectedness at the class level. The
relation between teachers? support and students? school connectedness did
not significantly vary across classes. This study indicates that teachers?
support plays an important role in fostering students? connectedness to
school. Implications of this study are relevant for teachers? initial
education and professional development.
Attenuation of EM Waves Emitted From Inset Feed Type Microstrip Rectangular Patch Antenna by Wet Snow
Authors: Özkan Rabia , Mert Oğuzhan , Yılmaz Yusuf , Ramazan Feyza , Duman Mehmet
Published: September 2022

Microstrip patch antennas stand out because of their low cost, smaller size and easy fabrication. The study presents the design of a microstrip rectangular patch antenna operating at 2.6 GHz frequency and the effect of different weather conditions on the antenna. During the antenna design on CST program and manufacturing in the laboratory, it is aimed to perform the measurement at the desired frequency and decibel level. The study includes experiments and results made on different types of snow, apart from the normal measurement with the VNA. A good S11 scattering value was obtained at the desired frequency in the designed microstrip patch antenna as -18.48 dB. This value decreased to around -5 dB when there was wet snow on the antenna due to attenuation and thermal effects. If the snow was removed from the antenna, the old S11 value could not be returned because of the wetness left by the snow, and it remained at approximately -14 dB. Consequently, the attenuation of the electromagnetic waves have been confirmed by the literature under different conditions as wet snow with nano VNA for the first time. Attenuation by wet snow and water is greater than dry snow with voids.
Agrega Gradasyonundaki Değişimlerin Aşınma Tabakasında Kullanılan Bitümlü Sıcak Karışımların Mekanik Özelliklerine Olan Etkilerinin İncelenmesi
Authors: Arslan Deniz , Köse Hüseyin
Published: September 2022

Türkiye’de bitümlü karışımın kullanılacağı tabakaya göre hangi gradasyon özelliklerine sahip olması gerektiği Karayolu Teknik Şartnamesinde belirtilmiştir. Bu çalışmada, şartnamede aşınma tabakası için tanımlanan Tip-1 gradasyon zarfındaki alt, orta ve üst limit değerlerinin yanı sıra alt ve üst limitlerin belirli oranda ötelenmesiyle oluşturulan beş farklı agrega gradasyonunun bitümlü karışımların mekanik özellikleri üzerindeki etkilerinin araştırılması amaçlanmıştır. Belirlenen beş gradasyon ile hem gradasyon zarfı dahilindeki değişimlerin etkisi hem de gradasyon zarfının genişleme potansiyeli incelenmiştir. Bu amaç doğrultusunda farklı agrega gradasyonları ile oluşturulan bitümlü karışımlarla Marshall tasarımları yapılmıştır. Test sonuçlarına göre agrega gradasyonu inceldikçe karışımın optimum bitüm ihtiyacı artmıştır. Gradasyon inceldikçe, optimum bitüm oranındaki bitümle dolu boşluk oranının (Vf) ve agregalar arasındaki boşluk yüzdesinin (VMA) arttığı, birim ağırlığın (Dp) azaldığı tespit edilmiştir. Aynı zamanda, Tip-1 için tanımlanan gradasyon zarfının genişleme potansiyelinin olabileceği görülmüştür.
The Stability Pattern of the Cellulase Enzyme Produced by Aspergillus flavus
Authors: IF Okonkwo
Published: September 2022

In view of the fact that temperature plays key role in the activity of fungal cellulases, this experiment was designed to assess the stability pattern of the cellulase Enzyme produced by Aspergillus flavus derived from rotten wood. The characterization of the purified cellulase enzyme of Aspergillus flavus was carried out using Carboxymethyl cellulose, Filter paper and Cotton wool assays. The maximum and optimum temperatures were 90°C and 70°C, respectively. The enzyme retained above 50% of its original activity at 100°C for 1h and up to 80% at 80°C for 1h Enzyme decay study showed that Cellulase activity remained 100 % at 0 h for both CMC and filter paper. However, as incubation period increased, the activity decreased, but the enzyme still retained above 50 % activity in both substrates at 1h, over the range of 40-100°C. The study carried out showed that the purified Aspergillus flavus cellulases demonstrated useful properties among which include; high optimum temperature, increased thermal stability. They also offer additional advantage as they are more rigid than meso enzymes and moreover, are more resistant to thermal and chemical denaturation. Hence are remarkable tools for developing commercial biotechnologies and for studying protein stability.
Thrombocytosis on Adult Patient with SARS-Cov-2 in Africa
Authors: LO Ngolet
Published: September 2022

The 2019-2020 pandemic caused by a novel coronavirus, SARS-Cov-2 or COVID-19 is ongoing. The outbreak of a respiratory illness caused by COVID-19 was first identified in Wuhan, Hubei Province, China and declared by the local authorities in December 2019. Since the beginning of the pandemic, Governments and health authorities across the world are striving to limit the widespread of the virus. The African continent registered its first cases about two months ago, and then readily implemented massive preventive measures such as lockdown, confinement and curfew. Like others, African Scientists are learning from and sharing their experiences about the disease. The aim of this article is to present a case of a COVID-19-related moderate pneumonia with unusual laboratory findings. This study has been approved by the local bioethics committee.
Diversity of Clinical Features of Patients with Thalassemia Intermedia
Authors: S Ashraf
Published: September 2022

Thalassemia is the most common single gene disorder in the world found at high frequencies in many populations worldwide. Beta thalassemia presents with extremely diverse phenotypes within the homozygous and compound heterozygote states. The term “ β -thalassemia intermedia” (TI) was first suggested to describe patients who had clinical manifestations that are not as mild as β -thalassemia minor and not as severe as β -thalassemia major” (TM). Patients with TI usually present to medical attention in later childhood or even adulthood. Diagnosis of thalassemia intermedia relies on clinical presentation more than the molecular characterization. In this study clinical features of the patients having thalassemia intermedia were observed. The study was carried out on 100 known thalassemic intermedia patients. All of the patients were diagnosed clinically and confirmed with molecular analysis. The clinical features observed age at the time of examination, age at the start of transfusion, interval between transfusion, facial changes, spleen and liver. Presence of jaundice in the patients was also noted. The ages of the patients were between 2 to 34 years. The age at commencement of transfusion was between 1 year to 32 years. 21 patients had severe facial changes, 48 with mild facial changes while 31 had no facial changes. Only 6 patients had enlarged spleen. Six of the patients had their spleen removed. 5 patients showed up with significant jaundice and 38 patients had enlarged liver. Patients presented with broad spectrum of clinical features. Majority of the patient had mild changes in liver and spleen, having mild facial changes and less sever jaundice. While others represented with sever hemolysis , enlarged spleen and liver accompanied with significant facial changes and yellow coloration of skin representing jaundice. Thus it is difficult a draw a definite line between thalassemia intermedia and thalassemia major. A careful observation of physical presentation and molecular analysis support is required to claim the diagnosis of thalassemia intermedia
COVID-19-Driven Immunoparalysis and Cytokine Storm: Can Hematologists Contribute to the Battle?
Authors: M Marchetti
Published: September 2022

COVID-19 pandemia is a major health emergency causing hundreds of deaths worldwide. The high reported morbidity has been related to derangement of the immune system, cytokine overproduction and endothelial dysfunction. Several drugs currently marketed for blood disorders are being tested for potential clinical benefit in patients with COVID-19 and hematologists are valuable partners for multidisciplinary research projects assessing host-targeted therapies. This review attempts to highlight the pathogenesis of lymphopenia in COVID-19 disease and the possible treatment pathways. While discussing the pattern of cytokine hyperproduction, we also focused on anti-cytokine drugs being tested for COVID-19 disease but currently prescribed for blood disorders.
Long-Term Rather than Short-Term Survival Benefit in Mantle Cell Lymphoma Patients Treated With Intensive Chemo- Immunotherapy and Hematopoietic Stem Cell Transplantation in Real World Experience
Authors: TD Tan
Published: September 2022

Purpose: Mantle cell lymphoma is an aggressive B cell lymphoma with initially responded but easy to relapse and difficult to cure without survival plateau. The present recommendation of treatment includes induction chemo-immunotherapy followed by high dose chemotherapy plus autologous hematopoietic stem cell transplantation for transplant-eligible patients and chemo- immunotherapy followed by rituximab maintenance for transplant-ineligible patients. However, the best induction regimen remains to be defined and median five-year overall survival is around 60% on phase II trials of multi-center experiences. Materials & Methods: We investigated the real world outcome of our patients undergoing different regimens of induction chemo-immunotherapy and analyzed whether the intensity of treatment as one of prognostic factors upon the impact of survival. Results: Between 1997 and 2018, we analyzed 50 patients as the cohort with median age 62 (range 34 to 77), and male to female was 40 versus 10. Advanced stage of diseases were 86% (stage III 10% and stage IV 76%) of all patients. Ki-67 more than 30% of lymphomas were seen in 50% of patients and 34% with Ki-67 less than 30% and 16% were unknown. Thirty-four per cents of patients underwent intensive induction chemo-immunotherapy with or without ASCT and 66% received non- intensive treatment. Six of 31 relapsed patients had undergone allogeneic hematopoietic stem cell transplantation. Five-year overall survival was 52% with median OS 5.15 years. There was no significant survival difference between intensive versus non-intensive induction therapy with 53% versus 46% in first 5 years, however, better overall survival was seen in intensive therapy group when follow up longer. High Ki-67 patients had shorter 5-year overall survival (37% vs 63%). Transplant patients had better overall survival with 68% vs 47% in 5 years with median OS 10.86 vs 4.34 years. Conclusion: There was no statistically significant difference of survival during the initial five years but intensive induction chemo-immunotherapy with or without HDC/ASCT could achieve better survival in longer follow-up according to our real world experience.
Evan’s Syndrome - A Case Report
Authors: N Bhatnagar
Published: September 2022

Evan’s syndrome is a rare and chronic autoimmune disease characterised by autoimmune hemolytic anemia and immune thrombocytopenic purpura with a positive Coomb’s test in the absence of an underlying etiology. Majority of the patients with this syndrome have a chronic relapsing course and significant morbidity and mortality despite treatment. We present a case of a 22 year old female, in which, based on the clinical features, Coombs test, hemolytic anemia and thrombocytopenia, a diagnosis of Evans syndrome was made.
Interpretation of Full Blood Count Parameters in Health and Disease
Authors: O Erhabor
Published: September 2022

The full blood count (FBC) or Complete Blood Count (CBC) is one of the most frequently requested haematological investigation performed in patients. It has the potential, when interpreted carefully and in relation to the clinical history can potentially yield very useful clinical information that assist in diagnosis and management of patients by clinicians. It usually comprises 13–19 parameters. The aim of this review was to highlight the evidenced based interpretation of full blood count parameters in health and disease. PubMed, Google Scholar, Science Direct and African Journals Online search was performed in January 2020 and studies on the components of a normal full blood count in health and several disease states was included in the review. Search keywords included full blood count and its clinically significance. FBC is a readily available test whose clinical utility is far reaching and can potentially monitor effect of drug treatment, pre-operative intervention and in the diagnosis of diseases such as anaemia, cancer, clotting issues, infection and immune system disorder. The parameters included in a normal FBC are sometimes under-utilized as most clinicians and nurses rely more on three of the components (HB, WBC and platelet count). FBC determination using either the 3 of 5-part differential haematology analyzer should be based on SOP using certified reagents, validated equipment and quality controlled (IQC and EQA) testing in a Good Laboratory Practice compliant laboratory. All clinically significant analyzer generated flags must be investigated. All results must be technically and clinically validated. Laboratories must identify findings and flags that should warrant the examination of a peripheral blood film as well as results that need to be communicated promptly to the requesting clinician to facilitate the need for immediate remedial action and effective management of patients. It is vital that result is not reviewed in isolation but holistically looking at trends over time and taking into consideration known diagnosis.
The Cadaverous Carnage- Aseptic Bone Necrosis
Authors: A Bajaj
Published: September 2022

Aseptic necrosis is a commonly discerned degenerative condition of the bone characteristically constituted of deteriorated cellular components. Generally, the condition arises secondary to discontinuity of subchondral vascular effusion. The disorder is additionally designated as avascular necrosis, osteonecrosis or ischemic bone necrosis and no bone is exempt. Specific sites incriminated are the tibial tuberosity as encountered in Osgood-Schlatter’s disease or proximal femoral epiphysis as denominated in Legg-Calve’-Perthes disease.
Effect of Smoke Inhalation on Methaemoglobin, Oxyhaemoglobin and Packed Cell Volume of Plantain (“Bole”) Roasters in Port- Harcourt, Nigeria
Authors: SG Christian
Published: September 2022

Bole is a popular delicacy in Port Harcourt, Nigeria. Bole is roast plantain, roasted above burning charcoal. It is usually roasted alongside yam, and fish. In the course of roasting Bole, women are exposed to smoke which in the long run may produce some effects on the blood. The study examines how the smoke inhaled by these women affects their packed cell volume, methaemoglobin and oxyhaemoglobin levels. This study was carried out on blood samples collected from women who roast Bole (test subjects), in Port Harcourt, specifically in Diobu and Borikiri area. Control subjects were apparently healthy women that were not exposed to smoke. A total of 40 samples (20 from test subjects and 20 from control subjects) were collected through standard vein-puncture technique. Packed cell volume was determined using microhaematocrit method, oxyhaemoglobin and methaemoglobin levels were analyzed using spectrophotometric method. Methaemoglobin level (4.94 ± 4.17%) and PCV level of the test subjects (39.45 ± 1.32%) were significantly greater than that of control subjects (methaemoglobin: 1.64 ± 0.39%) and (packed cell volume: 38.50 ± 1.40%); (p-value = 0.00114 and 0.032887 for methaemoglobin and PCV respectively). The Oxyhaemoglobin levels of test subjects (11.38 ± 1.29g/dl) was significantly lower than the oxyhaemoglobin level of the control subjects (15.39 ± 0.89g/dl); (p- value = 0.000). The study therefore reveals that exposure to smoke increases methemoglobin levels and decreases oxyhaemoglobin level; this does not support adequate physiological oxygen delivery to body tissues and organs and could lead to hypoxia. We therefore recommended that these women use other means which produces less smoke to roast their plantain (bole), increase hydration, and make use of nose masks to reduce smoke inhalation.
Circulating Megakaryocytes in Peripheral Blood: A Clue to Satisfactory Platelet Recovery Post Induction Chemotherapy in Acute Myeloid Leukemia
Authors: Padhi Somanath
Published: September 2022

Thrombocytopenia is a common hematological abnormality in newly diagnosed acute myeloid leukemia (AML) which may be linked to the degree of marrow infiltration by leukemic blasts as well as altered cytokine milieu in a subset of AMLs. We report the presence of circulating megakaryocytes in peripheral blood as a sign of satisfactory platelet recovery post induction chemotherapy in a pediatric subject with a favourable risk WHO category I AML with synchronous extramedullary myeloid cell tumor; and present a brief review of literature on the role of platelet recovery in AML prognosis.
Interactive Effects of Breed, Physiological Conditions and Topography on Grazing Behaviour and Distribution of Dairy Cattle at Mpwapwa
Authors: SS Ismail
Published: September 2022

The study was carried out at Mpwapwa Livestock Training Agency (LITA) Dairy unit during dry season to examine the interactive effect of dairy cattle breeds and their physiological condition on grazing behaviour and the influence of topographical features on grazing distribution. The experimental design involved 2x3 factorial arrangements with two factors; breed (Friesian, Ayrshire and Jersey) and physiological status (dry, weaners and lactating). Focal observation method was used by three trained observers to examine focal animals for four days consecutively. Field survey techniques were used for recoding different signs of animals’ movement from upper-land and lowland. It was revealed that the time spent for foraging was inversely proportion to the time spent for rumination; grazing being higher for Friesian and Ayrshire breeds and significantly lower for Jersey breed. Interestingly, lactating cows had significantly lower feeding rate which was associated with concentrate supplementation. More studies are recommended not only to determine the impacts of supplementation on production levels but also economic implication of supplementation. Moreover, Friesian and Jersey displayed higher feeding rate at weaning stage and drying-off period respectively which implies the complex interrelationship between genomic characteristics and physiology of animals and thus calls for indepth studies. Nevertheless, a preferential choice of grazing animals in lowland has ecological implication by increasing grazing pressure on lowland pastures. Appropriated range management practices such as proper stocking rate, water point distribution and pasture improvement are recommended. Further studies are also recommended to examine nutritional composition and seasonal variation in forage resources.
Management of Northern Hill Myna Gracula Religiosa Intermedia in Cage for Talking
Authors: MA Kabir
Published: September 2022

Before the wildlife act in Bangladesh, the first line hobby of bird keeping was Hill Myna. That time most luxurious people reared it for their man-like nice talking. Its price was huge. Hill Myna is our native bird. So, now for strong wildlife act pet of the Hill Myna is not accepted. Recently, many birds collected from Dhaka Kataban and released them in Lawachara National Park, Sylhet, Bangladesh. Now in Bangladesh this Hill Myna is replaced by exotic parrots, parakeets, cockatoos, macaws, and lovebirds etc.
Rabbit Breeding and Welfare - Emphasis on Housing Conditions
Authors: KK Ana Carolina
Published: September 2022

In order to understand the real need for more space or collective cages in the rabbit breeding is necessary to establish parameters to measure what is good or bad for the animals and not for the humans. In nature, rabbits spend most of their time in shelters or the search for feed. This behavior does not reproduce in captivity, because, the animals have restricted space. However, the questions are: Would the animals like more space even having feed always available? Would the animals even being protected would like to live in groups? In this sense, the most studies show that the group rearing in cages – for growing rabbits up 84 days – is the best choice to satisfy rabbit social behavior. In reproducing animals, alternative housing systems, that permit does to separate themselves from their litters, should be developed. So far the individual cages seem to be the most suitable for the does.
Degradability of Legumes Proteins in Ruminant Nutrition
Authors: M Jordan
Published: September 2022

Legumes are the main source of protein and the main constituents of ruminant meals. This place is occupied by the ability of biological nitrogen fixation and because of their high nutritional value. They significantly reduce production costs – less application of nitrogen mineral fertilizers and a lower proportion of concentrated nutrients in ruminants rations. In addition to the fact that legumes have a high nutritional value, their proteins are subject to rapid and intense degradation in the rumen. Consequently, the rate of protein degradation in the rumen directly affects the efficiency of the nitrogen utilization by ruminants. Generally, ineffective nitrogen utilization may be the result of imbalance between protein and carbohydrates in rations, which increases the risk of nitrogen losses and its secretion into the environment. Modern nutrition system, such as CNCPS (Cornell Net Carbohydrates and Protein System) enabled the detailed analysis of protein solubility and degradability. This allows adequate characterization of animal feedstuffs and their variability, predicting the extent and rate of degradation of carbohydrates and protein in digestive tract, as well as microbial protein supply
Pathotyping and Genetic Characterization of a Highly Virulent Newcastle Disease Virus Strain Isolated from Recent Outbreak in District Naushahro Froze, Sindh, Pakistan
Authors: I Yasin
Published: September 2022

In Pakistan, growth of poultry industry is confronted by many viral diseases and Newcastle Disease (ND) is on top. The present study was conducted for pathotyping and genetic characterization of NDV isolated from an outbreak in District Naushahro Froze region of Sindh, Pakistan. Post mortem examination of fresh carcasses (n=10) was performed and various organs like trachea, spleen, lung tissues, and cloacal contents were collected from birds showing typical lesions of the disease aseptically. Tissue homogenate was inoculated in 9 days old embryonated chicken eggs and allantoic fluid was harvested. The presence of virulent virus was checked by hemagglutination, hemagglutination inhibition using hyperimmune serum and ICPI assays. NDV was purified using sucrose gradient ultracentrifugation and confirmation was done by F-gene amplification, SDS-PAGE and mass spectrometry of fusion protein. The HA titer was 1:256, and hemagglutination inhibition was achieved using Anti NDV serum. A band of ≈ 800 bp of F gene (Acc.no Naushahro Froze /Pakistan/MH607122) was amplified which revealed 99% similarity with Sindh Agriculture university/Pak/2015/MF437287, Sindh Agriculture university /Pak/2016/KX791187 and Tehran/Iran/MG871466 strains. SDS-PAGE yielded five bands including Fusion protein with the estimated mass of 58896.0 Da. The presence of fusion protein and ICPI value was 2 which confirmed virulence of isolated strain resulting in high mortality. Thus, it is the need of the hour to characterize the prevalent indigenous strains of NDV to develop some novel vaccine strategies for effective control
Breastfeeding Practices among Health Professionals in Tertiary Hospital in Nairobi, Kenya
Authors: RN Musoke
Published: September 2022

Background : WHO aims to increase the 6 month exclusive brea stfeeding rate to 50% by 2025. Breastfeeding is one of the key interventions that will help in achieving the sustainable development goals. Health professionals have been identified as a high risk group for early cessation of breast feeding. Work has been noted to be the major factor that interferes with breastfeeding. Kenyatta National Hospital (KNH) is a baby friendly hospital. A number of studies have been conducted on mother practices but none has been on the health care professionals. Objective: The st udy explored breastfeeding practices during first six months by nurses and doctors working at Kenyatta National Hospital (KNH). Methodology: Using a self administered semi - structured questionnaire we explored the practices and perceptions regarding exclusi ve breastfeeding female health professionals who had a child below age of 3 years Results: Of the 160 questionnaires issued, 139 were valid for analysis. Of these 49 were residents and 90 were nurses. The median age for doctors was 31 years and that of nur ses was 35 years. Initiation of breastfeeding within the first hour was 69.5% and 22% gave prelacteal feeds. The median duration of exclusive breastfeeding was 5 months. However, exclusive breastfeeding was 99.3% during the first three months was 94.9% at four months, 64.2% at 5 months, and 29.2% at 6 months. Sixty three percent thought 6 month exclusive breastfeeding was actually practical. After maternity leave, 81.3% reported a decrease in the amount of br eastmilk but 66.7% made effort to ensure that their babies continued to get breastmilk. Only 46% had special consideration on duty allocation on return to work. Conclusion: Only 29.2% exclusively breastfeed for 6 months and there was little consideration o n allocation of duties when back to work. Effort to avail a breastfeeding friendly work environment needs to be made to rectify this.
Sonographic Eye on Dengue during Clinical Evaluation and Early Diagnosis in Children
Authors: A Ravi Teja
Published: September 2022

The study was done during epidemic of dengue in South India tertiary paediatric Hospital during 2019, for a period of one mon th. Role of ultrasound in early identification of dengue and its complications along with clinical and laboratory investigations. Ultrasound was performed on 112 patients (1 – 14 years) referred from dept. of paediatrics for ultrasound with features of dengu e and its complication and later confirmed the diagnosis with serology proven. 30 patients were serologically negative for dengue fever hence excluded from the study. Out of 92 serologically positive cases 31 cases visited hospital at early stage and under gone ultrasound during 2/3 rd day and 5/7 th day of fever. During 2/3 rd day ultrasound showed as almost all showed gall bladder wall thickening and pericholecystic fluid (in different patterns), 32.5% had hepatomegaly, 16.12% had splenomegaly and 19.35% righ t minimal pleural effusion, 3.25% left plural effusion. Follow - up ultrasound on fifth to seventh day revealed ascites in 93.5%, hepatomegaly in 90.3%, right plural effusion 80.6%, left pleural effusion in 41.9% and pericardial effusion in 29%. Of the 61 pa tients who underwent the study on fifth to seventh day of fever for the first time almost all had gall bladder wall thickening, 95.0%had hepatomegaly, 27.8% had splenomegaly, 96.7% had ascites, 95.08% had right pleural effusion, 75.4% had left pleural effu sion and 22.9% had pericardial fluid. To conclude, in an epidemic of dengue, ultrasound features of thickened gall bladder wall, pleural effusion heaptomegaly and ascites should strongly favour the diagnosis of dengue fever.
Prenatal Diagnosis of Fetal Goiter: Case Report and Review of Literature
Authors: P Croce
Published: September 2022

Pregnancy hyperthyroidism due to Plummer’s disease is an uncommon event. Therapy is based on propylthiouracil (PTU), starting from the first trimester of pregnancy. Among the complications of the antithyroid drugs (ATDs) there is the risk of hypothyroidism and fetal goiter, in addition to well - known possible teratogen effects. Maternal hormonal monitoring with a personal ized pharmacological treatment and fetal ultrasound control, starting from the 18 th week of pregnancy, are mandatory for the mother and fetus’ health and therefore for a successful pregnancy. In this paper we’ll describe the case of a woman with toxic aden oma, in which the ultrasounds diagnosis of fetal goiter at the 29 th gestational - week of pregnancy and the consequent suspension of the ongoing therapy with PTU, succeeded in the end of the pregnancy with the birth of a healthy fetus.
Symptomatic Syringomyelia Associated with Acute Bacterial Meningitis in a 3-Year-Old Patient
Authors: T Jalalzai
Published: September 2022

Syringomyelia is very rare in children specially in younger than 5 years. As it has slow progression therefore it takes years to become symptomatic and to be diagnosed. In most cases syringomyelia is a chronic spinal disorder which progress slowly. We report a case of symptomatic syringomyelia associated with acute bacterial meningitis in a 3 years old patient in French Medical Institute for Mothers and Children (FMIC)
Detection of HBV DNA among HBsAg Negative Patients
Authors: AA Adeniyi
Published: September 2022

The persistence of Hepatitis B viral DNA (HBV DNA) in the blood or liver without the presence of detectable HBsAg is called Occult Hepatitis B infection (OBI)). This has become a threat when considering prevention of HBV transmission in our community. The purpose of this study was to determine prevalence as well as the HBV genotype(s) associated with OBI in Ibadan, Nigeria. HBsAg negative, using ELISA techniques, 219 blood samples were included for the study. Nested Polymerase Chain Reaction was used for the detection of HBV DNA in the samples. Data collected was processed using descriptive statistics and Chi square at p = 0.05. The number of male and female participants were 102 (46.6%) and 117 (53.4%) (P = 0.204) respectively. The participants have age range from 1 to 70 years with mean age of 32.1 years (SD =12.7) for females and 33.9years (SD = 12.4) for males. The clinical status of participants ranged from asymptomatic to those presented with acute hepatitis disease. Out of the 219 samples tested, one was positive for HBV DNA giving a prevalence of 0.5%. The positive sample was from a 30 years old female. We were unable to determine the genotype of the isolate due to poor sequence data. There is evidence of circulation of Occult Hepatitis B virus in our community as shown with prevalence of 0.5% OBI in this study. There is need for screening of blood units using Nucleic Acid Testing (NAT) technique to reduce the transmission of the virus through transfusion of infected blood and blood products. There is also need to increase awareness of HBV vaccination among the general population to forestall the danger OBI may pose.
Application of products of the ammonia reforming process to power the internal combustion engine operating on the diesel cycle
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Vorobyov S. A. , Razumov P. A. ,   Saint Petersburg State University of Architecture and Civil Engineering, Abyzov I. T. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: September 2022

This article discusses the use of ammonia reforming to generate hydrogen to be used as an additive to the main type of fuel in the internal combustion engine operating on the Diesel cycle. The feed of the hydrogen additive with the reforming products is implemented through the intake manifold to the engine cylinders. There was carried out a comparative analysis of ammonia with other types of fuel in terms of gross calorific value and hydrogen content. Autothermal reforming of ammonia (NH3 - ATR), combining selective oxidation of ammonia (to nitrogen (N) and water (H2O)) and thermal decomposition of ammonia on a ruthenium catalyst with using air as a source of oxygen is considered. The article provides an assessment of the application of reforming and the effect of the product on the combustion of fuel and exhaust gases. The addition of a fairly small amount of non-carbon reformate, approximately 5 % of the diesel fuel, is quite effective in reducing engine carbon emissions, including CO2, CO and total hydrocarbons (CHx).
Problems of processing construction waste during construction and reconstruction of residential buildings
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Drozdova I. V. , Alievskaya N. V. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: September 2022

At present, only 10-15% of the total volume of construction waste is recycled in Russia. Most of the waste has to be buried in special landfills, the capacity of which is almost exhausted. The reasons of low volumes are the following: slow re-equipment process of recycling enterprises; imperfection of legislative base for regulation of relations in the field of operation; lack of state support and economic incentives in the field of construction waste recycling. These problems could be solved by means of providing tax benefits, loans with reduced rates, subsidies from the budgets of different levels so as to implement resource- and energy-saving projects in the field of recycling construction waste and its use as raw material in the production of construction materials with low cost and improved quality characteristics, in order to use it in civil, industrial and road construction, within the mechanism of public-private partnership based on concession.
Expansión urbana y sostenibilidad de humedales naturales. Caso: Humedales de Villa, Chorrillos, Lima, Perú 2010-2020
Authors: Caro Zaldívar Vda. de Medina Raquel Rosario
Published: September 2022

La investigación se enfoca en los Humedales Naturales de Villa Chorrillos ubicados en el distrito de Chorrillos, en Lima, Perú; cuyo objetivo fue determinar la asociación entre la expansión urbana y la sostenibilidad de estos humedales durante el periodo del 2010-2020. De esta manera, se busca sensibilizar a los involucrados, sean autoridades expertas y la comunidad en general, para reforzar e internalizar el tema de educación ambiental. La metodología abordada fue observacional y de carácter transversal que permitió recabar imágenes que sustentan la invasión y expansión de lo urbano que deterioran la naturaleza. Por otro lado, se desarrolló un cuestionario con 27 preguntas estructuradas con variables cualitativas y tres opciones de respuestas. Los resultados tanto a nivel descriptivo caracterizaron las dimensiones e indicadores de sus respectivas variables, así como la asociación de las mismas, planteando 3 hipótesis entre la dimensión espacial versus las dimensiones económica, social y ambiental. Con 4 grados de libertad y 0.05 de significancia se tomó una decisión inferencial con respecto a las hipótesis aceptadas o rechazadas. La conclusión es que la dimensión espacial y la dimensión ambiental de los humedales naturales de Villa Chorrillos para el periodo 2010-2020 están relacionadas significativamente.
English Phonology: Student’s Perception Toward English Sound Application to The Learning of Pronunciation
Authors: Claire Ifhanatasha Febian  , Fasikhatul Mabrurah  , Fenesia Fasya Affara  , Lailinda Hindun Nazulfa  , Tri Agustiningsih
Published: September 2022

Pronunciation is a crucial thing in English speaking, which is phonology in action. Phonological rules deal with the correct pronunciation of words. Pronunciation is an aspect of learning English that many students struggle with. In this digital era, students need simple thing to learn pronunciation. English sound is the application to help student learn pronunciation. This application learning more detailed about pronunciation, such as stress, symbol, sound, etc. This study is aims to investigate the perception of the students toward English Sound Application to the learning of pronunciation. the researched method used in this study is descriptive qualitative method, and the data collected through depth-interview. The data gathered through the interview with 10 students of 6th Grade English Education Department the result of the research have shown that most of the participant are the user of English Sound Application, and this app really enjoyable, useful, and gave many improvements in english. Accordingly, this research recommends students use English Sound Application in the learning of Phonology and pronunciation.
TikTok As a Learning Medium for Learning Speaking During Pandemic COVID-19: Students' Perspective of UIN Prof. KH. Saifuddin Zuhri Purwokerto
Authors: Winanti  , Asti Hayatri  , Fitri Salsabila Fatah  , Ulya Nur Maziyyah
Published: September 2022

Speaking skill as one of skills in English competence is required clear interaction involved more than one person for getting the meaning what people say, as essential competence in language, speaking skill detected as the competence got worst impact caused by Pandemic, inside of the practice and development of, related on the students’ limitation while learning process. This situation required the utilization of appropriate online learning media, as one of supportive English speaking platform’s training. TikTok application, with the basic of online learning medium seen as one of familiar media most students used as source of entertainment and knowledge seen as the the supportive media. This study aimed to determine the utilization of TikTok application in learning English followed by students’ perspective in UIN Prof. KH. Saifuddin Zuhri Purwokerto. The methodology used involved qualitative design with descriptive approach, supported by interview on students' perspective and literature study as the data collection. The population taken from students of English Education 2020 at UIN Prof. KH. Saifuddin Zuhri Purwokerto. Furthermore, the researchers had known the result of research as various data from students’ perspective on the use of TikTok, both effective or not and the domination of response notably the reasons of.
Presentación del dosier “Representaciones ciudadanas sobre la gestión política de la pandemia en Argentina. Narrativas, clivajes, posicionamientos y experiencias (2020-2022)”
Authors: Bracco Olga N. , Capasso Verónica , González Federico , Miño Chiappino Jessica , Morris María Belén , Porta Fernández Pedro , Sáez Mariana
Published: September 2022

Este dosier se basa en algunos de los datos construidos por la Red del Estudio Nacional Colaborativo de Representaciones sobre la Pandemia en Argentina (ENCRESPA), en el marco del Proyecto “Identidades, experiencias y discursos sociales en conflicto en torno a la pandemia y la postpandemia: un estudio multidimensional sobre las incertidumbres, odios, solidaridades, cuidados y expectativas desiguales en todas las regiones de Argentina”, que forma parte del “Programa de Investigación de la Sociedad Argentina Contemporánea (PISAC). Las ciencias sociales y humanas en la crisis COVID-19” (Agencia I+D+i). Está realizado por los y las integrantes de equipos de investigación que pertenecen al nodo FaHCE-UNLP y al nodo IEC-CONADU, y se propone reponer algunas de las conclusiones a las que se ha arribado en el proyecto desde cuatro de las subredes temáticas que lo conforman: educación, cuerpo, creencias e ideologías, identidades y pasiones políticas. En particular, este trabajo colectivo se propone realizar un análisis sobre las percepciones e identificaciones políticas en relación con la gestión política de la pandemia en 2020 y 2021, identificando narrativas, clivajes, posicionamientos y experiencias que los atraviesan en este contexto.
Miradas docentes sobre la educación universitaria en pandemia. Narrativas, posicionamientos políticos y jerarquizaciones diferenciales
Authors: Morris María Belén , González Federico
Published: September 2022

En este artículo analizaremos las percepciones de docentes universitarios/as sobre la gestión educativa de la pandemia (2020-2021) en relación con sus posicionamientos políticos. Específicamente, haremos foco en las narrativas en torno a las políticas de continuidad educativa en el nivel superior universitario y en tres dimensiones que enmarcan las discusiones sobre este nivel educativo: la estrategia de la virtualización en el marco de la tensión inclusión-exclusión, las concepciones sobre el sujeto pedagógico y el rol social de la universidad pública. Para ello, retomamos un corpus empírico construido a partir de entrevistas semiestructuradas realizadas a docentes del nivel universitario y una encuesta online orientada a la misma población. A partir del análisis, concluimos que los posicionamientos políticos de los y las docentes no han segmentado sus lecturas sobre la política de continuidad educativa; sin embargo, estas sí influyeron en las argumentaciones sobre aspectos más generales de la educación pública universitaria, lo que permitió observar jerarquizaciones diferenciales en la construcción de narrativas y argumentos.
La protesta como estrategia para la acumulación de poder sindical: un contraste entre las posturas adoptadas por el sindicalismo en Córdoba a comienzos del Siglo XXI
Authors: Gerbaldo Juan
Published: September 2022

Este artículo parte de la fractura de la CGT regional Córdoba en octubre del año 2000. El interés se encuentra en reconocer cuál fue la actitud que asumió cada división ante un contexto que presentó situaciones conflictivas semejantes. Específicamente, se busca analizar la práctica confrontativa a la que incurrieron las dos centrales y comprender los fines que la orientaron. Para ello se propone identificar sus acciones de protesta, distinguiendo y contrastando sus repertorios, la articulación con otros actores sociales y sus demandas en un periodo que comprende desde el año 2000 hasta el 2004. La hipótesis plantea que los puntos conflictivos fueron procesados de manera desigual por cada organización, mientras que una asumió un rol confrontativo la otra evitó realizar acciones de protesta. Se procurará examinar estas cuestiones desde una escala subnacional y en una clave histórica, recuperando la información brindada por la prensa comercial y por boletines sindicales informativos.
La apasionante vida de Reyna Diez
Authors: Mandagarán Melanie
Published: September 2022

Revisión del libro Memorias de una vida rebelde: Retrato de Reyna Diez por F. Baez Damiano