bluuebunny/crossref_metadata_2025 huggingface dataset:
Stress Factors Affecting the Cryopreservation of Biological Components of Seed Virus for Avian Influenza Vaccine Production
Authors: Mehmood Muhammad Danish , Ahmad Muhammad , Ul-Haq Huma Anwar , Ghani Muhammad Usman , Tahir Zahid Ali , Ismail Muhammad , Arshad Fareha , Shaukat Abdul Rashid
Published: October 2023

In the past, many studies have been done to cryopreserve biological materials for future vaccine production. Scientists have been using different chemicals as cryoprotectants to preserve their cell lines on which desired viruses can be cultivated. Researchers have always been in search for better molecules to avoid cryoinjury during process of cryopreservation. In the present study, different molecules were evaluated for cryo-potency in preserving master seeds of “Vero cell” line and “Avian Influenza viruses”. Cryoprotectants such as (Dimethyl sulfoxide) DMSO and Glycerol were used in different concentration and evaluated at -80oC and -196oC for different time interval. After 15 days and 30 days of cryopreservation the percentage viability of preserved cells were almost equal at both temperatures whereas, after 60 days, 90 days and 120 days the higher percentage of viability was recorded at -196oC for both Vero cells and Avian Influenza virus.  Different pH levels were set for both samples separately with same time interval and found slightly acidic pH (pH5.5) optimum for cryopreservation of Vero cell line and Neutral pH (pH7) for Avian Influenza virus. DMSO (20%) and Glycerol (40%) showed optimum percentage viability when cryopreserved for 120 days without any ill effect.  
Optimization of Reducing Sugar Production from Sida cordifolia Biomass Using Response Surface Methodology
Authors: Ahmad M.A.
Published: October 2023

This study is aimed at evaluating the potential of Sida cordifolia, for the production of reducing sugars via acid hydrolysis. Effect of temperature (60oC-100oC), acid concentration (1%-6%) and time(30min-60min) was investigated using response surface methodology (RSM) experimental design. Reducing sugars yield from acid hydrolysis was optimized using RSM. The interaction of (acid concentration)2 and (temperature)2 were found to be the most significant quadratic terms affecting reducing sugars yield. The optimum parameter conditions were found to be temperature (80oC), reaction time (60 min) and acid concentration (3.50%) with a reducing sugar yield of 4.931%. The findings suggest that the biomass can be harnessed as a potential feedstock for the production of bioethanol and other bio-based chemicals.
Prevalence of Malaria Infection among Pregnant Women Attending Some Antenatal Clinics in Gombe State, Nigeria
Authors: R Asher
Published: October 2023

Malaria continues to be a major health problem in endemic countries; it has been identified in many studies to worsen certain pregnancy outcomes, leading to an increase in morbidity and mortality. There are an estimated 100 million malaria cases with over 300,000 deaths per year in Nigeria. This study was aimed at assessing the prevalence of malaria among pregnant women living in Gombe State. A total of 725 Pregnant Women attending antenatal clinic from six selected general hospitals in Gombe State were examined, and blood samples collected from the subjects were analysed. Malaria diagnosis were carried out using standard parasitological techniques. The overall results showed that of the 725 samples examined, 31.9% were positive and 68.1% negative. The degree of parasitemia evealed mild in 78.4%, moderate in 17.3% and severe in 4.33%. Age group 21-25 (12.3%) had more infection, followed by age group 31-35 (7.31%), 26 30 (5.65%), 15-20 (4.00%), 36-40 (2.20%), 41-45(0.27%) and 46-50 (0.14%). More infections were recorded among pregnant women in their third trimester 19.7%(143) compared with those in second trimester 10.9%(79) and first trimester 1.24%(9) respectively. Malaria infection was also higher among multigravid 8.8%(136) pregnant women than among primigravid 8.41%(61) and secondigravid 4.68 (34) pregnant women. However, there was no significant difference (P > 0.05) between prevalence of infection with Age group, trimester and gravidity of the pregnant women. This research work has provided information at the local level on the spread of malaria parasites in pregnant women in Gombe State. There is therefore the need for increase sensitization and awareness on the effect of malaria infection in pregnancy which will in turn enhance prevention, management and control.
Prevalence of Immunoglobin G and M among children infected with Plasmodium falciparum in some Hospitals in Maiduguri, Borno State
Authors: Inuwa Yahaya
Published: October 2023

The threat of Malaria to the public health especially in Sub-Saharan Africa is enormous and Nigeria in particular is considered a bit hotspot. The diseases are transmitted by Plasmodium species with severe disease outcome children under 5 years. In this study, we undertook a cross-sectional study using representative cohort of children in Maiduguri aged 5 59 months to determine the seroprevalence and risk factors associated with infection with P. falciparum in this vulnerable aged group. A cross-sectional study was conducted on participants from four hospitals in Maiduguri, Borno State. In total, plasma was collected from 182 and 91 participants for the detection of IgG and IgM antibodies, respectively using Enzyme Linked Immunosorbent Assay for the measurement of IgG and IgM antibody production against P. falciparum. The result indicates that the overall seroprevalence was (75.3%; 137/182) and (86.8%; 79/91) corresponding to IgG and IgM respectively. Based on gender, male 24(13.2%) and 8(8.8%) were positive with respect to IgG and IgM while 21(11.5%) and 4(4.4%) of the females were positive to IgG and IgM antibodies respectively. Additionally, both University of Maiduguri Teaching Hospital and State Specialist Hospital Maiduguri, recorded the highest prevalence of 15 (8.2%) for IgG while only UMTH recorded the highest prevalence of 5(5.5%) to IgM antibodies. In conclusion, the overall seroprevalence was found to be low for both IgG and IgM. However, our study observed differences in the seroprevalence of P. falciparium in children according to age and study locations for IgM and IgG respectively. Also, males have high seroprevalence for both IgG and IgM.
Growth Performance and Nutrient Utilization of Clarias. gariepinus Fed Soaked Boscia senegalensis Supplemented Diets
Authors: M. Z Hassan,
Published: October 2023

The present study investigated the nutritional suitability and cost effectiveness of a Sahelian plant seeds, Aizien (Boscia senegalensis) as alternative to Soy bean meal in the diet of African Catfish (Clarias gariepinus Burchell, 1822). Raw seeds of the B. senegalensis were subjected to processing method intended to reduce levels of the most important antinutritional factors (ANFs). The resultant product was used to formulate five isonitrogenous (40%) diets, containing the seed meals at inclusion levels of 25% to 100% of dietary protein and fed to Fingerlings of the African Catfish at 5% of their body weight for a period of 24 weeks. The feeding trial involved one hundred and fifty (150) fingerlings of C. gariepinus(2.43g –3.10g) randomly stocked at ten fish per Tank (200L) in a non-flow through design with regular water replacement and water quality monitoring. Important growth performance and nutrient utilization indices, weight gain (WG), specific growth rate (SGR), feed conversion ratio (FCR), protein efficiency ratio (PER), and Feed conversion efficiency (FCE) of fish in the experimental groups fed SBS based showed that Fish fed 50% SBS diet recorded the highest WG (439.14g), SGR (1.34%/day) and FCR (1.35). This could be attributed to the protein quality of the diets in relation to the dietary essential amino acid profile of the experimental diets used. Generally, the Fish fed the 100%SBS diet recorded the lowest growthperformance with regards to WG (360.68g), SGR(1.25), FCR (1.61), PER (1.58) and FCE (62.22%).From the results of this experiment, for better production of African catfish C. gariepinus, replacement levels of 50 SBS may serve as good alternative to SBM in feed formulation for C. gariepinus.
Penerapan Relaksasi Benson Terhadap Tekanan Darah Pada Penderita Hipertensi di Wilayah Puskesmas Sibela
Authors: Antilarasati Dwi , Hartutik Sri
Published: October 2023

Latar belakang: Indonesia termasuk dalam kategori penderita Hipertensi yang cukup tinggi yaitu sebesar 34,1% didunia, sedangkan di Jawa Tengah sebesar 57,87%, untuk prevalensi hipertensi di kota Surakarta 37,80 %. Dan Penderita Hipertensi tertinggi pertama dikecamatan jebres yaitu dipuskesmas Sibela sebanyak 12.447 penderita ,dari tingginya nilai hipertensi di Indonesia jika tidak ditangani akan menyebabkan gangguan jantung,dan pembuluh darah dan akan mempengaruhi perubahan fungsional,gangguan fungsi fisik yang akan berpengaruh pada Activity Daily Living(ADL). Untuk itu perlu adanya upaya dalam mengontrol tekanan darah. Relaksasi Benson yaitu terapi religius yang melibatkan faktor keyakinan agama yang mampu menghilangkan fikiran yang mengganggu sebagai pencetus terjadinya hipertensi Tujuan: Mengetahui perubahan tekanan darah pada penderita hipertensi sebelum dan sesudah dilakukan terapi relaksasi Benson. Metode: Jenis penelitian ini adalah metode penelitian deskirptif dengan melakukan observasi pada 2 responden dengan riwayat Hipertensi dan diberikan implementasi terapi relaksasi Benson. Hasil: penanganan hipertensi dengan terapi relaksasi Benson yang diberikan sebanyak 5 hari berturut turut dengan 1 kali dalam sehari sebelum tidur selama 5 menit. Terapi relaksasi Benson dapat mempengaruhi tekanan darah pasien sehingga terdapat perubahan pada tekanan darah pasien.Kesimpulan: terapi relaksasi Benson dapat menurunkan tekanan darah penderita hipertensi.
Terror en Buenos Aires: la conspiración de Álzaga de 1812
Authors: Falak Marcelo
Published: October 2023

Este libro considera un episodio histórico que no ha recibido la atención suficiente por parte de la historiografía nacional, la llamada “Conspiración de los españoles” de 1812, y lo estudia bajo la luz del marco teórico del “pánico moral”, acuñado por el sociólogo Stanley Cohen.

El trabajo impuso una tarea compleja de adecuación de dicho marco teórico a un contexto muy diferente del original, cuyo producto pone de relieve el surgimiento, en prácticas y en discursos, de un sujeto pueblo nativo en la Buenos Aires de la época, separado del europeo peninsular, que tomaría definitivamente en sus manos el futuro del proceso revolucionario iniciado en 1810.

El libro ilumina, en definitiva, lo que el autor define como “un hito destacado delbig bangrevolucionario iniciado dos años antes, que contribuiría a fraguar paulatinamente un desarrollo identitario tanto a nivel de sectores plebeyos como de la élite política, expresado en buena medida en el carácter a la vez inédito y espectacular del mencionado episodio”.
Cereals, the Key to North African Food Security
Authors: Berroukche Abdelkrim , Terras Mohamed
Published: October 2023

Agriculture plays a fundamental role for the economies of North African countries, in the development of territories and the fight against poverty. The region faces a cereal deficit and their supply of this material is highly dependent on international markets. During 1990-2010, the volume of agricultural imports tripled for North African countries. National cereal production remains insufficient to meet the growing needs of the population. Productivity remains limited by many constraints and imports of agricultural products will continue to play a key role in food security. Among the factors involved, climate change is responsible for drought and floods, uncertainty and weakness of international agricultural product markets in supplying national markets, and rising food prices. Regional trade and international cooperation, despite little development between this region and the industrial agri-food world, could ensure temporary food security for North Africa and benefit from the complementarity of their agriculture and industries. North African countries should favor an approach to global and plural food security. Such an approach will integrate the objectives of agricultural development, the fight against poverty, sustainable management of water resources and soils, and adaptation to climate change.
Aspectos constitucionais de proteção ao indivíduo com Transtorno Afetivo Bipolar: um olhar sobre a teoria das capacidades à luz do princípio da dignidade da pessoa humana
Authors: Da Silva Júnior Daniel Melo , De Sousa Cleicy Alves , De Sousa Valéria Castelo Branco , De Souza Vanessa Castelo Branco , De Freitas Janaína de Nazaré Borges , De Souza Edenil Quaresma , Vieira Paulo Henrique Trindade , Alves Nayara França
Published: October 2023

O Transtorno Afetivo Bipolar (TAB) representa patologia psiquiátrica com alta incidência no Brasil, cujas estimativas da Organização Mundial da Saúde (OMS) referem aproximadamente oito milhões de indivíduos vivendo com o transtorno, muitos sem um diagnóstico e sem acesso ao tratamento adequado. Os reflexos das variações de humor apresentadas no quadro clínico do TAB são potencialmente modificadoras da capacidade de autodeterminação desses indivíduos, ainda que em caráter transitório. Com características de uma pesquisa qualitativa e exploratória a considerar a metodologia de revisão narrativa de literatura, foram realizadas buscas na Biblioteca Virtual de Saúde, em que constatou-se a escassez de literaturas sobre a temática, originando uma análise dos aspectos constitucionais de proteção ao indivíduo com TAB sob à luz do princípio constitucional da dignidade da pessoa humana e da teoria das capacidades. Como conclusão, verificou-se que apesar do TAB ser considerado doença grave que altera a percepção da realidade, especialmente nos episódios de mania, a declaração da incapacidade deve se restringir a casos específicos quando devidamente comprovada a necessidade de assistência por terceiros, isto porque restringir a capacidade de um indivíduo significa diminuir-lhe a liberdade individual, o que compromete o princípio constitucional da dignidade da pessoa humana.
Comparação entre os algoritmos K-Means e Dynamic Cluster em imagens digitais
Authors: Domingues Arthur Scardini , De Carvalho Maria Luzia Silva , Morais Neto José Washington Vidal , De Castro Angélica Félix , Neves Odacir Almeida
Published: October 2023

O presente trabalho, teve como objetivo realizar o comparativo entre dois algoritmos de clusterização (K-Means e Dynamic Cluster) em imagens digitais. Estes foram submetidos aos mesmos testes a fim de avaliar sua performance quanto a qualidade da resposta. Os resultados mostraram a superioridade do algoritmo Dynamic Cluster em relação ao K-Means.
Aspectos didáticos da evolução urbana de São Luís, Maranhão, Brasil
Authors: Dos Santos Saulo Ribeiro , Hardt Letícia Peret Antunes , Hardt Carlos
Published: October 2023

Baseado em questionamentos tanto sobre cenários gerados na evolução de São Luís, Maranhão, quanto sobre formas de apreensão do fenômeno no âmbito educacional, o objetivo geral do estudo é compreender aspectos didáticos dessa configuração evolutiva, condicionada por políticas socioeconômicas e infraestruturais, atreladas a investimentos públicos e privados promotores do atual desenho urbano. Com natureza descritiva e abordagem qualitativa, apoiadas em técnicas bibliográficas e documentais, a pesquisa foi dividida em quatro momentos reflexivos acerca da cidade: ensinamentos da emergente (anos 1600), aprendizagem sobre a comercial (1700 a 1800), compreensão da expandida (século XX) e epistemologia da incerta (atualidade). Para esses períodos, são estabelecidos direcionamentos de diretrizes de ensino, com vistas à formulação de estratégias multidisciplinares de desenvolvimento para alcance de elevados patamares de qualidade de vida.
Trend of the Research on Islamic Corporate Governance in Islamic Banking: A Bibliometric Analysis
Authors: Suhendar  , Zulfikar Rudi , Bastian Elvin , Hanifah Imam Abu
Published: October 2023

Objective: Islamic Corporate Governance in Islamic Banking companies is a topic that is still poorly studied, and this study aims to test research trends regarding Islamic corporate governance in Islamic banking.
 
Methodology: This research is presented in literature by combining bibliometric (quantitative research)  and in the form of content (KualiTatif Research) analysis using 1040 Scopus articles, using several indicators of Islamic corporate governance in Islamic banking.
 
Result: The results of this study show a shift in the total number of publications regarding indicators of Islamic corporate governance in Islamic banking from 2017 to 2023. However, there are publications that have not increased from 2018-2022 due to the declining number of publications. The highest level of publication was in 2014, when the visualization was determined by the co occurance network by title and abstracts, with a minimum provision of 10 sentences from research related to Islamic corporate governance. In the diagram that appears in vosviewer shows that there are several sentence indicators that appear related to Islamic Banking including, corporate governance, Islamic economy, stability, trust, religiousity, brand role clarity, Islamic banking performance, personal financing and Islamic interbank benchmark and other determining indicators.
 
Conclusion: However, researchers find it difficult to trace islamic corporate governance indicators in analyzing bibliometrics in this study.
AFRICANIDADES E FORMAÇÃO DE PROFESSORES: INSPIRAÇÕES POR MEIO DO PROGRAMA ETNOMATEMÁTICA NA RESIDÊNCIA PEDAGÓGICA
Authors: OLIVEIRA JANAINA APARECIDA DE , Ramos Márcia Augusto de Lima
Published: October 2023

O Neste trabalho, apresentamos o recorte de uma pesquisa qualitativa realizada com estudantes de graduação em Matemática, participantes do Programa de Residência Pedagógica (PRP), implementada em uma escola de educação básica da Rede Municipal de Ensino do município de Uberlândia – MG. Teve como objetivo geral, compreender as possibilidades formativas dos futuros professores no contexto das africanidades no processo de ensinar e aprender Matemática.  Justificou-se essencialmente mediante a ausência por parte dos residentes de conhecimento para a aplicação curricular da implementação da Lei 10.639/03 na sala de aula, lacuna no curso, constatada em entrevista com os residentes, no curso até o ingresso dos participantes na Residência Pedagógica. Assim, partilhamos análises realizadas do processo de constituição dos saberes docentes sobre as africanidades dos participantes da pesquisa.
APLICAÇÃO DO MODELO ARIMA À PREVISÃO DO PREÇO DA SOJA COMO FERRAMENTA PARA TOMADA DE DECISÃO
Authors: Luchesi Andre Luiz Barros , Araújo Maria da Piedade , Walter Silvana Anita
Published: October 2023

O agronegócio é uma atividade que envolve diversos riscos e incertezas, por essa razão torna-se necessária a utilização de ferramentas para auxiliar a tomada de decisão. Esta pesquisa tem por objetivo analisar o desempenho preditivo do modelo ARIMA para as estimativas de preços a curto e médio prazo, apresentando a trajetória e tendências futuras do preço da soja, com a finalidade de auxiliar os agentes envolvidos na comercialização dessa commodity. O estudo utilizou preços mensais da soja comercializada na bolsa de valores de Chicago (CBOT), entre janeiro de 2000 a junho de 2018, e utilizou a metodologia Box-Jenkins para desenvolvimento do modelo. O modelo ARIMA (1,2,1) obteve o melhor ajuste aos dados, apresentando uma taxa de erro de apenas 5,39%, de acordo com o indicador de erro MAPE, um percentual de erro baixo, considerando o mercado agrícola. Os resultados demonstram que esse tipo de modelagem matemática constitui-se em uma ferramenta relevante para tomada de decisão, possibilitando aos gestores elaborarem ações para maximizar seus resultados e minimizar os riscos. No entanto, o intervalo de confiança das previsões geradas ainda é relativamente grande, sendo mais indicada para subsidiar decisões a curto prazo. Embora, suas estimativas a médio prazo devam ser consideradas pelos gestores.
A ESTETIZAÇÃO DO COTIDIANO E A CONSTRUÇÃO IDENTITÁRIA NA MODA ENTRE A GERAÇÃO Z
Authors: De Melo Laura Leticia Pessoa , Costa Andréa Fernanda de Santana
Published: October 2023

A identidade do indivíduo contemporâneo encontra-se fortemente influenciada pelas dinâmicas do mercado global, pelo consumo e pela moda. Se tratando do jovem contemporâneo, é possível identificar uma influência da esfera digital na concepção de sua identidade estética, direta e intencionalmente. Essa imagem concebida, se ampara em recursos de natureza virtual. O objetivo do presente estudo é propor uma discussão acerca da noção de Aesthetics, enquanto tendência predominante nas redes sociais digitais, e seu papel de influência na construção identitária, de estilo e de comunicação entre os jovens da geração Z.
THẨM ĐỊNH QUY TRÌNH XÁC ĐỊNH HỆ SỐ PHÂN BỐ Kd CỦA MENINGES CONJUGATE TRONG VẮC XIN MENACTRA BẰNG PHƯƠNG PHÁP SẮC KÝ RÂY PHÂN TỬ
Authors: Đàm Thị Liễu  , Đoàn Hữu Thiển  , Đường Thị Cẩm Lệ  , Phạm Quang Minh  , Cảnh Huyền Trang  , Bùi Thanh Tùng  , Nguyễn Quyết Thắng
Published: October 2023

Sắc ký rây phân tử là phương pháp chia tách các phân tử trong dung dịch dựa trên kích thước của chúng. Ứng dụng của sắc ký rây phân tử chủ yếu trong khử muối, phân đoạn tinh chế, làm đặc dung dịch loãng và xác định trọng lượng phân tử.

Trong sắc ký rây phân tử, kích thước phân tử có mối quan hệ chặt chẽ với thời gian lưu, có thể sử dụng thời gian lưu của phân tử đã biết trước kích thước để tính hệ số phân bố và ước lượng kích thước phân tử cần kiểm tra, khẳng định phân tử này có nguyên vẹn không. Nghiên cứu này được tiến hành nhằm thẩm định quy trình xác định hệ số phân bố Kd của Meninges conjugate trong vắc xin Menatra và ước lượng độ không đảm bảo đo trên mẫu thử. Phương pháp sử dụng trong nghiên cứu là phương pháp mô tả thực nghiệm trong phòng thí nghiệm.

Kết quả thẩm định về tính thích hợp của hệ thống, tính chính xác (độ lặp lại và độ tái lặp trung gian), độ mạnh, độ đặc hiệu đạt theo tiêu chuẩn ICH (Hội đồng hài hoà quốc tế), WHO (Tổ chức Y tế thế giới). Độ không đảm bảo đo mở rộng trên mẫu menactra là 0,0128. Thử nghiệm có giá trị và phù hợp với điều kiện phòng thí nghiệm của Khoa. Độ không đảm bảo đo của mẫu thử phù hợp với kết quả Kd của meninges conjugate trong mẫu.
MÔ TẢ CÁC LÝ DO NGỪNG ĐIỀU TRỊ DỰ PHÒNG TRƯỚC PHƠI NHIỄM VỚI HIV (PrEP) TẠI MỘT SỐ TỈNH GIAI ĐOẠN NĂM 2020-9/2022
Authors: Trần Lâm Tùng  , Đoàn Thị Thùy Linh  , Nguyễn Văn Hùng
Published: October 2023

Điều trị dự phòng trước phơi nhiễm với HIV (PrEP) được triển khai ở Việt Nam từ năm 2017 đến nay. Nghiên cứu mô tả cắt ngang nhằm phân tích đặc điểm và mô tả các lý do ngừng điều trị của 34.358 khách hàng PrEP tại một số tỉnh giai đoạn năm 2020-9/2022. Kết quả cho thấy: 2 nhóm ngừng điều trị PrEP nhiều nhất là nam quan hệ tình dục đồng giới (MSM) (80%) và cặp bạn tình dị nhiễm (10%). Tỷ lệ khách ngừng sử dụng PrEP do không còn nguy cơ tăng qua các năm trong khi ngừng PrEP do mất dấu có xu hướng giảm dần. Khách hàng PrEP tại khu vực tỉnh, thành phố trực thuộc trung ương ngừng sử dụng PrEP cao gấp 1,6 lần khách hàng PrEP tại các tỉnh khác.
ĐẶC ĐIỂM VÀ GIÁ TRỊ CỦA SIÊU ÂM SÀNG LỌC TRƯỚC SINH Ở THAI PHỤ CÓ CHỈ ĐỊNH CHỌC ỐI CHẨN ĐOÁN BẤT THƯỜNG NHIỄM SẮC THỂ THAI NHI TẠI NGHỆ AN (2020 – 2021)
Authors: Trần Tất Thắng  , Quế Anh Trâm
Published: October 2023

Siêu âm (SA) có giá trị lớn trong sàng lọc chẩn đoán những bất thường nhiễm sắc thể (NST) của thai nhi, giúp chỉ định chọc ối. Mục tiêu là tìm hiểu đặc điểm bất thường và giá trị siêu âm trong xét nghiệm sàng lọc trước sinh tại Bệnh viện Phụ Sản Nghệ An (2020 -2021). Bằng phương pháp xét nghiệm siêm âm thai, Double test, Tripple test và nhiễm sắc thể đồ cho 121 thai phụ có chỉ định xét nghiệm chọc ối. Nghiên cứu đưa ra Kết quả là tuổi trung bình của thai phụ là 32 ± 6,69 năm, nhóm ≥ 35 tuổi chiếm 40,5%. Tỷ lệ thai phụ có chỉ định chọc ối do bất thường siêu âm chiếm cao nhất (62,8%), sau đó là thai phụ trên 35 tuổi (40,5%), xét nghiệm sàng lọc trước sinh có nguy cơ cao (35,5%). Tỷ lệ thai có hình ảnh siêu âm bất thường là 62,8%. Hình ảnh bất thường siêu âm phổ biến nhất là tăng khoảng mờ da gáy (12,6%), bất sản xương mũi (5,5%). Tỷ lệ thai nhi bất thường nhiễm sắc thể là 15,7 %; Có 22,3% thai hình ảnh siêu âm bất thường cũng có bất thường nhiễm sắc thể. Độ nhạy, độ đặc hiệu, tỷ lệ âm tính giả, dương tính giả của siêu âm phát hiện bất thường nhiễm sắc thể là 89,5%; 42,2%; 10,5% và 57,8%. Kết luận: Siêu âm phát hiện nhiều hình ảnh bất thường và độ nhạy cao trong dự báo bất thường nhiễm sắc thể thai nhi.
EVALUATION OF THE SARS-COV-2 DETECTION PROCESS ON THE ABBOTT AUTOMATIC SYSTEM m2000RT
Authors: Nguyen Duy Thái  , Vu Duy Dung  , Tran Hong Tram  , Vu Thi Lan Anh  , Do Thi Huong  , Dang Anh Ngoc  , Vuong Thi Mai Linh  , Doan Huu Xuyen
Published: October 2023

Amidst the complex progression of the COVID-19 pandemic in Vietnam, in response to the need for diagnosing suspected COVID-19 patients, we conducted research to validate the procedure for detecting the SARS-CoV-2 virus on the Abbott m2000 system using real-time PCR. We used a positive control sample (Abbott Real Time SARS-CoV-2 Positive control provided by the manufacturer) to assess the accuracy and Limit of Detection (LOD) of the procedure. The results indicated that the detection limit of the method met the manufacturer's recommendation with a test sample concentration of 100 copies/ml and a 100% positivity rate. The accuracy, encompassing both specificity and sensitivity, was 100% with community-collected test samples having a concentration ≥100 copies/ml. Our study has proven that the detection procedure for the SARS-CoV-2 coronavirus on the Real-Time PCR m2000 system meets the accuracy and detection limit criteria set by the manufacturer. Based on these research findings, there's a scientific basis to apply this procedure for diagnostic testing of the SARS-CoV-2 coronavirus in samples at the National Institute for Control of Vaccine and Biologicals (NICVB).
Qualitative elemental analysis of farm animals’ milk adopting laser spectroscopic technique
Authors: AABDEL–SALAM Z , EL-SAYED A
Published: October 2023

Information about the elements in milk represents a major tool to identify different milk types and their quality. This is because milk constituents of minerals, proteins and fats differ by different mammals and even for different breeds. In the present work, fresh samples of widely consumed farm animals’ milk, namely from buffaloes, camels, sheep and goats were analyzed qualitatively using laser induced breakdown spectroscopy (LIBS) technique. It was focused on calcium, magnesium, iron, sodium, strontium and barium. Molecular bands of CN in the LIBS spectra were used to study the proteins levels in different milk samples. The results revealed that milk samples from different animals could be characterized as completely different combination of the elements constituents were present in magnesium and iron were higher in goat milk compared to the other animals; in addition, the percentage of barium relative to calcium was lower in all milk samples which confirm plant feeding for all studied animals. In general, this work demonstrates the feasibility of using LIBS as a simple, fast and cost effective technique to perform in situ qualitative analysis of milk samples in dairy farms without any need to transport samples to the laboratories.
Shelf-life extension of chicken patties with the application of multiple hurdles and modified atmospheres packaging
Authors: BISWAS A K , CHATLI M K , SAHOO J
Published: October 2023

The present study was undertaken to know the effect of hurdle treatments on the quality of chicken meat patties (CMP) during storage at 27±2 °C under modified atmospheres packaging (MAP) condition. A total three samples were prepared viz. (i) control (T0), (ii) smoke treated (T1) and (iii) chitosan coating + smoke treated (T2). The products were drawn at 3 days interval and evaluated for various physico-chemical parameters, sensory attributes and microbiological quality. Results indicated that both smoking alone and chitosan coating in combination with smoking had significant effect on pH of chicken patties. Lipid stability study indicates control samples showed higher TBARS values as compared to treatment groups. This sample exhibited TBARS value of 1.69 mg malonaldehyde (MDA) per kg of sample which is near to threshold value of lipid oxidation (2.0 mg MDA/kg). T1 samples showed lower TBARS value, FFA content, moisture % and water activity (aw) than their counter part control and T2. Lovibond tintometer colour value suggested that treated products were darker (lower L- value) and shown to have higher redness (a-value) and yellowness (b) values as compared to control. However, both the ‘a’ and ‘b’ values decrease with the increased storage period. Texture profile analysis revealed that hardness value was more for T1 products. Both the treated products exhibited comparable sensory scores while control showed least. Standard plate count was higher for T2 samples as compared to T1. The control patties were spoiled on the day 3 while T1 and T2 samples can be well stored up to day 12 and 9, respectively. In general, the use of hurdles could substantially improve the shelf life of chicken meat patties during room temperature storage.
Alterations in serum matrix metalloproteinases during different reproductive stages of Murrah buffaloes
Authors: KRUPAKARAN R PRAKASH , BALAMURUGAN T C , PANDIYAN G D V , ARUNKUMAR S , PERUMAL P
Published: October 2023

A comparative study on serum gelatinase was carried out in Murrah buffaloes. Healthy buffaloes (24), 3-6 year old were selected and divided into 4 groups, each comprising 6 animals (group 1: pregnant; group 2: estrus; group 3: anestrus; and group 4: regular cyclic). Blood samples were collected in heparinised vacutainer and immediately transported to the laboratory. These samples were centrifuged at 3,000 rpm for 15 min and serum was preserved at -20°C in deep freezer. The serum samples were subjected to gelatin zymography. In group 1, major bands at 220, 92 and 72kDa bands were observed. The 92kDa MMP-9 band was very prominent and its activity was 3 times higher than that of MMP-2 and also 72KDa of MMP-2 band was very prominent as compared to the human marker. The 220 kDa band appeared as doublet of pro and active forms and above the level of 92kDa band. Minor catalytic breakdown products of 135 kDa were also observed. Below the 92 kDa band, 82kDa active form of MMP-9 was also observed as a band. In group 2, bands were observed at 220, 92 and 72kDa. The activity of MMP-9 band was about half a time lesser than that of human marker MMP-9 (92kDa). All the 3 enzymes were found only in their proform. The level of expression of MMP2 (72kDa) was equal to that of human marker. The ratio of MMP-9 and MMP- 2 was about 2.5. In group 3, there is a very prominent band of 72kDa MMP-2 and a fainter band of 92kDa MMP-9 and the faintest band of 220kDa MMP-9 were observed. Among the 3 bands, the MMP-2 was very prominent and the ratio of MMP-9 and MMP-2 was 0.25. Finally, in group 4, three bands were observed at 220, 92 and at 72 kDa. The level of expression of MMP-9 was greater than MMP-2 and the ratio MMP-9/MMP-2 was about 1.25. It is concluded that MMP2 and MMP 9 was demonstrated in the serum of all the 4 groups. The level of MMP-9 expression was greater in estrus buffaloes as compared to that of regular cyclic buffaloes and it was lowest in anestrus buffaloes.
Tracking the Relationship Between Media Literacy and Political Participation Across Different Generations
Authors: Vozab Dina
Published: October 2023

Many scholars argue that media literacy is crucial for the development of citizenship and political engagement, especially in the digital environment. While a positive relationship between news consumption and political participation has long been established, we still lack sufficient knowledge on how media literacy influences political participation. Studies about the connection between media literacy and political engagement do not point to a clear relationship between the two. Most studies on media literacy and participation focus on young media users, overlooking generational differences in news consumption. Moreover, studies should also acknowledge the expanding repertoires of political participation in a digitally networked environment. This study uses a news media literacy (NML) scale and an extended political participation scale to analyse the relationship between media literacy and different dimensions of political participation, taking into account generational differences among news audiences. Data from the survey on media literacy is used, and regression analysis is used to assess the relationship between media literacy and political participation. The results are not unequivocally in line with the normative understanding of the relationship between media literacy and civic engagement. Although media literacy education programmes have a positive impact on some forms of political participation, there is no significant relationship between news media literacy and political participation. There is also a generational gap in news media literacy and political participation. The results call for further validation of the NML scale and research of inequalities in news media literacy.
Watch (TV) and Learn? The Relevance of (Embodied) Cultural Capital in Explaining Traditional and Digital Media Literacy
Authors: Krolo Krešimir
Published: October 2023

This paper aims to identify whether dimensions of cultural capital affect traditional and media literacy by using survey data collected in 2022 as part of the project Medijsko obrazovanje je važno (N=1033). Using Bourdieu's theoretical framework, three dimensions of cultural capital were operationalised as independent variables: objectified (number of books in the household), embodied (taste in TV programmes), and institutionalised (level of education) cultural capital. Traditional media literacy was operationalised as critical reading of media messages, while digital media literacy was operationalised as creating online digital content. Both of these variables were used as dependent variables in the analysis. Following principal component analysis (PCA), hierarchical regression analysis was conducted to establish whether cultural capital has explanatory power for both dimensions of media literacy. The results point to the statistically significant role of objectified cultural capital in explaining traditional media literacy, although that explanation’s statistical power remains questionable. Digital media literacy exhibited no statistically significant connection with all three cultural capital dimensions. However, additional analysis points to the relevance of digital skills as a more potent factor in explaining traditional and digital media literacy. Overall, digital capital represents a more relevant distinction factor than users’ classic cultural capital in a contemporary media environment. The implications of this data point to the conclusion that media literacy is primarily shaped through various forms of digital capital, although the role of television should not be neglected when developing future programmes in media literacy.
Finding environmental discourse in historical newspapers: a topic model workflow for query disambiguation
Authors: Tinits Peeter
Published: October 2023

Digitized historical newspapers are a treasure trove of information for our understanding of the past. As one popular application, the frequencies of query matches can be used to understand the prevalence of some discourse in a historical era. This requires the construction good queries: broad enough to capture diverse contexts and narrow enough to exclude irrelevant ones. For historical research in digital humanities, targeted queries that emphasize precision have been advised. In this paper, we develop an alternative approach, by using broad queries to cast a wider net and then using topic models built on the match contexts to filter out irrelevant matches. Specifically, we look for contexts discussing environmental issues throughout the 20th century using a corpus of two Australian newspapers. We report on a comparison of iteratively constructed narrow and broad queries and their precision and recall, and find our approach to discover roughly 7-10x more matches with a comparable level of accuracy. This combined approach can work well for focussed research projects where deliberate query construction and qualitative feedback on the results is feasible.
Relating Suicide: A Personal and Critical Perspective
Authors: Larsen Kim
Published: October 2023

.
Vitne til sjølvmord: — Mange fortel om sterke synsinntrykk
Authors: Pileberg Silje
Published: October 2023

.
Karies på emalje- og dentinnivå blant europeiske ungdommer – en systematisk oversikt og metaanalyse
Authors: Skeie Marit S. , Sen Abhijit , Dahllöf Göran , Fagerhaug Tone Natland , Høvik Hedda , Klock Kristin S.
Published: October 2023

Hovedbudskap

Bortimot åtte av ti 12-19 åringer som deltok i studien, hadde karies.

Ungdom som ble undersøkt i perioden fra 1990 opp til 2010, hadde signifikant høyere kariesprevalens enn de som ble undersøkt i 2010 og senere. Dette indikerer at ungdom har opplevd en bedring i kariessituasjonen i løpet av de senere årene.

Meta-analyse viste at andelen emaljekaries utgjorde halvparten av den totale karieserfaringen; andelen var sannsynligvis underestimert.

Rapportering av emaljekaries og hvor stor andel den type karies utgjør av totale karieserfaring, er viktig. Det kan gi kunnskap om hvordan tannhelsetjenesten bør fordele ressursene til kariesforebyggende tiltak og til tidlig, ikke-invasiv behandling av emaljekaries.
Foreword
Authors:   NOAA, Spinrad Richard
Published: October 2023

This year marks the 50th anniversary of NOAA’s Pacific Marine Environmental Laboratory (PMEL). This world-class research facility has proven itself a global leader in the development and deployment of innovative strategies for ocean observation and monitoring. It is thanks to the dedicated work of PMEL researchers that we have advanced our understanding of the climate and weather nexus, ocean acidification, marine ecosystems, and ocean and coastal processes, all while advancing science technology innovation.
Evaluating the Evolving Ocean Acidification Risk to Dungeness Crab: Time-Series Observations and Modeling on the Olympic Coast, Washington, USA
Authors:   NOAA PMEL, Alin Simone , Siedlecki Samantha , Berger Halle , Feely Richard , Waddell Jeannette , Carter Brendan , Newton Jan , Schumacker Ervin , Ayres Daniel
Published: October 2023

The state of Washington’s Olympic coast is home to four US coastal treaty tribes who have relied on the region’s rich marine resources since time immemorial. The region is characterized by large dynamic ranges of physical and biogeochemical oceanographic parameters, particularly during the upwelling season (April–September). Here, we present novel estimates of ocean acidification metrics—pH and calcium carbonate saturation states (Ω)—representing pre-industrial, present-day (using 2010 as the index year), and near-future (2030) conditions. We compare these new estimates of past, present, and near-future ocean acidification status and seasonality to published end-of-century (2100) ocean acidification projections under a high CO2 emissions scenario, and also to sensitivity information for Dungeness crab, a regionally important subsistence and commercial fishery species projected to show strong declines in fisheries yields and revenues later this century.
PMEL Ocean Climate Stations as Reference Time Series and Research Aggregate Devices
Authors:   NOAA PMEL, Cronin Meghan , Anderson Nathan , Zhang Dongxiao , Berk Patrick , Wills Samantha , Serra Yolande , Kohlman Catherine , Sutton Adrienne , Honda Makio , Kawai Yoshimi , Yang Jie , Thomson Jim , Lawrence-Slavas Noah , Eyre Jack , Meinig Christian
Published: October 2023

The NOAA Pacific Marine Environmental Laboratory (PMEL) Ocean Climate Stations (OCS) project provides in situ measurements for quantifying air-sea interactions that couple the ocean and atmosphere. The project maintains two OceanSITES surface moorings in the North Pacific, one at the Kuroshio Extension Observatory in the Northwest Pacific subtropical recirculation gyre and the other at Station Papa in the Northeast Pacific subpolar gyre. OCS mooring time series are used as in situ references for assessing satellite and numerical weather prediction models. A spinoff of the PMEL Tropical Atmosphere Ocean (TAO) project, OCS moorings have acted as “research aggregating devices.” Working with and attracting wide-ranging partners, OCS scientists have collected process-oriented observations of variability on diurnal, synoptic, seasonal, and interannual timescales associated with anthropogenic climate change. Since 2016, they have worked to expand, test, and verify the observing capabilities of uncrewed surface vehicles and to develop observing strategies for integrating these unique, wind-powered observing platforms within the tropical Pacific and global ocean observing system. PMEL OCS has been at the center of the UN Decade of Ocean Sciences for Sustainable Development (2021–2030) effort to develop an Observing Air-Sea Interactions Strategy (OASIS) that links an expanded network of in situ air-sea interaction observations to optimized satellite observations, improved ocean and atmospheric coupling in Earth system models, and ultimately improved ocean information across an array of essential climate variables for decision-makers. This retrospective highlights not only achievements of the PMEL OCS project but also some of its challenges.
Applications of Biophysical Modeling to Pacific High-Latitude Ecosystems
Authors:   Cooperative Institute for Climate, Ocean and Ecosystem Studies, Hermann Albert , Cheng Wei , Stabeno Phyllis , Pilcher Darren , Kearney Kelly , Holsman Kirstin
Published: October 2023

The high-latitude Pacific is home to highly productive ecosystems, including vast populations of commercially and subsistence harvested fish. These regions can be challenging to sample directly. Over several decades at the NOAA Pacific Marine Environmental Laboratory, we have applied numerical models to infer past, present, and future states of these regional oceans and their biota. These estimates are provided to fisheries scientists to help identify the local biophysical dynamics that underlie marine resource fluctuations and to managers to help develop effective management strategies in the face of short- and long-term environmental changes.
The PMEL Earth-Ocean Interactions Program: Beyond Vents
Authors:   NOAA PMEL, Butterfield David , Walker Sharon , Baumberger Tamara , Beeson Jeff , Resing Joseph , Merle Susan , Antriasian Anson , Roe Kevin , Lu Guang-Sin , Barrett Pamela , Chadwick William
Published: October 2023

As previously summarized by Hammond et al. (2015), from 1983 to 2013, the NOAA Vents program conducted systematic and multidisciplinary exploration, discovery, and research related to hydrothermal vents, submarine volcanic eruptions, and associated ocean physical, chemical, and biological processes. In 2014, Vents divided into two programs, Earth-Ocean Interactions (EOI) and Acoustics, and considered a broader range of questions about how seafloor and subseafloor processes contribute to ocean health, biogeochemical cycles, ecosystem diversity, and climate change. Here, we highlight major accomplishments since 2014, including deep-sea technologies that EOI, Vents, and Pacific Marine Environmental Laboratory (PMEL) Engineering have developed to advance marine science. EOI research is driven by a need for better observational data on issues of global importance, including the role of continental margin seeps in the global methane/carbon cycle, benthic ecology, and fisheries habitat; the role of hydrothermal systems in global biogeochemical cycles, including carbon dioxide removal; the potential impact of deep-sea mining of metal sulfides on ecosystem services provided by hydrothermal vents; and how hydrothermal iron functions as an essential nutrient. NOAA Ocean Exploration, the Schmidt Ocean Institute, the Ocean Exploration Trust, and the National Science Foundation have supported and collaborated in this work. Global exploration of the deep sea with the purpose of understanding global ocean processes remains a cornerstone of EOI science.
Data Processing and Management at PMEL: A 50-Year Perspective
Authors:   NOAA PMEL, Burger Eugene , O’Brien Kevin , Hankin Steven , Schweitzer Roland , Kamb Linus , Osborne Sage , Manke Ansley
Published: October 2023

Over the last 50 years, the landscape of marine data management has been transformed. Previously, each research project held its data privately and managed them as local files on disk; today, it is standard practice to share data collaboratively over the internet, often integrated with web tools that provide a global community of scientists with ready access to data analysis and visualization. NOAA Pacific Marine Environmental Laboratory (PMEL) developers and data managers have made and continue to make pivotal contributions toward this evolution. This article examines contributions that include a community-wide standard for metadata storage (e.g., climate and forecast [CF] metadata conventions), a widely used desktop computer tool (PyFerret), a pioneering web server providing visualization and analysis of distributed data (Live Access Server), tailor-made data management systems for uncrewed ocean platforms, and new developments in applications of machine learning to data quality control. We also describe the evolution of in-house PMEL data management, from PMEL developed tools to an open-science, interoperable data approach.
Introducing Exciting New Publishing Possibilities with Oceanography Flipbooks
Authors:   Geosciences Professional Services Inc., Kappel Ellen
Published: October 2023

In June 2023, The Oceanography Society (TOS) introduced its new Oceanography flipbook kiosk (https://​oceanographydigital.​tos.org/), where anyone can page through full issues of the magazine and supplements such as those on ocean exploration and ocean observing. The pages render crisply, and issues are easily navigable. Issue availability on the kiosk goes back through 2015. This open access kiosk replaces the former digital editions that were made available to TOS members only through Advanced Publishing.
Assessment of molecular diversity among linseed (Linum usitatissimum L.) genotypes using SSR markers
Authors: RAM BALAK PRASAD NIRALA  , SHWETA KUMARI  , BISHUN DEO PRASAD
Published: October 2023

The high nutritive value of linseed increases its market demand for human nutrition, cosmetic, pharmaceutical and textile industry. However, the decreasing trends in areaunder linseed cultivation and yield stagnation necessitate its genetic improvement. SSR markers have been widely used in diversity analysis in linseed. In this study, molecular diversity analysis of 31 linseed genotypes were carried out using 18 SSR markers. Out of 18 SSR primers, 15 were polymorphic. The similarity coefficient ranged from 0.5 to 0.9. Among the 31 linseed genotypes studied, the lowest similarity coefficient was observed between GS-202 and Neelum (0.50). Clustering of linseed genotypes using UPGMA based on the similarity coefficient data derived from SSR markers, grouped 31 genotypes into two major clusters and ?sub clusters. It was evident from dendrogram that the genotypes GS-202, Neelum, H-40 and EC-1424 were the most diverse. Therefore, it is suggested that these genotypes may be used in breeding programme for improvement of linseed.