bluuebunny/crossref_metadata_2025 huggingface dataset:
Fermentation Kinetic and Alpha-Amylase Inhibition Studies of Mao Wine Fermented by Three Commercial Saccharomyces cerevisiae Yeasts
Authors: Sripakdee Thitiya , Manochai Kittika , Singkhan Phummisak , Jandaruang Jinda , Siriwong Khatcharin , Poomsuk Nattawee
Published: March 2024

Mao wine is produced from mao (Antidesma thwaitesianum) and is a local beverage promoting Sakon Nakhon province, Thailand. Understanding the fermentation process is necessary in order to enhance the quality of mao wine products. This study aims to examine the kinetics of mao wine fermentation using 3 commercial types of Saccharomyces cerevisiae yeasts, namely Lalvin 71B, Lalvin RC212 and Lalvin K1-V1116, with an initial pH of 3.4, a sweetness of 22 % Brix and a yeast concentration of 0.4 g L–1 in controlled conditions at 25 °C for 10 days. The results revealed that the kinetic models, including logistic, Luedeking-Piret and modified Luedeking-Piret equations, are appropriate for analyzing the kinetics of yeast growth, alcohol production and reducing sugar, respectively. Lalvin K1-V1116 yeast yielded the highest capacity for alcohol production (~113 g L–1), sugar-to-alcohol conversion (45 % conversion), and product efficiency (88 %), indicating its suitability for mao wine production. Furthermore, the investigation of the alpha-amylase inhibitory activity revealed that the IC50 values of mao wine samples were 2.88 - 4.78 mg mL–1, which were roughly 410 - 680 times greater than those of acarbose. These findings revealed the low efficacy of mao wine in inhibiting alpha-amylase activity. Nevertheless, a decrease in the level of inhibition may result in a decreased likelihood of side effects or undesirable reactions. This treatment is especially beneficial for people who have medication sensitivities. Additional research is required in order to substantiate its applicability in the management of type 2 diabetes.
HIGHLIGHTS

Mao wines were produced by 3 commercial cerevisiae yeast strains
Lalvin K1-V1116 yeast exhibits the highest capacity in converting sugar to alcohol
Lalvin K1-V1116 is the most suitable yeast for making mao wine
The chosen kinetic models are appropriate for kinetic studies of fermentation process
The efficacy of Mao wine in inhibiting the activity of alpha-amylase is quite low

GRAPHICAL ABSTRACT
Steroid Compounds of Manihot Esculenta Crantz Var. Sao Pedro Petro (Tuber) and Their Cytotoxic Effects on Melanoma Cancer Cells (B16-F10)
Authors: Widiastuti Diana , Warnasih Siti , Mulyati Ade Heri , Sutanto Sutanto , Triastinurmiatiningsih Triastinurmiatiningsih , Sinaga Siska Elisahbet , Salam Supriatno , Harneti Desi , Lesmana Ronny , Supratman Unang , Susianti Susianti , Agustine Dine , Herlina Eka , Mulyani Rahmaniar
Published: March 2024

The pharmacological research of Manihot esculenta has stated the potential present as an interesting cytotoxic activity caused by several compounds contained in this species. However, the research on Melanoma Malignant cells (B16-F10 cancer cells) has never been studied. In this study, the steroid compounds isolated from the tuber of Sao Pedro Petro (1 variety of species M. esculenta Crantz) were studied in vitro and further evaluated using the western blot technique. Three steroid compounds, namely β-sitosterol (1), Campesterol (2), and Cholesterol (3), were obtained from the n-hexane extract of fresh Cassava tubers (Manihot esculenta Crantz). The chemical structures of compounds 1 - 3 were determined through various spectroscopic techniques such as HR-TOFMS, and NMR (1H, 13C, DEPT 135 °, HMQC, HMBC, 1H-1H COSY), along with a comparison to previously reported spectral data. Additionally, the apoptotic signaling pathway was investigated using RT-qPCR and western blot analysis. Among the 3 compounds, Campesterol (2) exhibited the highest IC50 value and demonstrated significant inhibition of B16-F10 cell proliferation by inducing apoptosis through caspase-3 activation. In conclusion, our study is the first to show that steroid compounds isolated from M. esculenta have activity against B16-F10 cells. This provides insight that steroids have the potential as chemopreventive agents to treat melanoma skin cancer.
HIGHLIGHTS

Three steroid compounds, namely β-sitosterol, campesterol, and cholesterol, were isolated from the n-hexane extract of fresh cassava tubers (Manihot esculenta Crantz) and campesterol exhibited the highest cytotoxic activity against B16-F10 melanoma cells, with an IC50 value of 160.4 µg/mL
Campesterol induced apoptosis in B16-F10 melanoma cells through caspase-3 activation
Treatment with campesterol led to noticeable alterations in cell morphology, including changes in shape, size, and other visible characteristics, further supporting its cytotoxic effects on melanoma cells
The research's novelty lies in its exploration of previously unreported steroid compounds from cassava tubers, particularly campesterol, and their cytotoxic effects on melanoma cells, along with insights into the underlying mechanisms of action
These findings contribute to the growing body of knowledge on natural compounds with potential therapeutic applications in cancer treatment

GRAPHICAL ABSTRACT
Soil base Crop Prediction using Machine Learning
Authors: Prof. Wadgule Y. M  , Nikam Tejas B  , Chavan Visahl M  , Bhamare Akash S  , Tutare Ashok S
Published: March 2024

In general, agriculture is the backbone [Grab your reader’s attention with a great quote from the document or use this space to emphasize a key point. To place this text box anywhere on the page, just drag it.]of India and also plays an important role in Indian economy by providing a certain percentage of domestic product to ensure the food security. But now-a-days, food production and prediction is getting depleted due to unnatural climatic changes, which will adversely affect the economy of farmers by getting a poor yield and also help the farmers to remain less familiar in forecasting the future crops. This research work helps the beginner farmer in such a way to guide them for sowing the reasonable crops by deploying machine learning, one of the advanced technologies in crop prediction. Naive Bayes, a supervised learning algorithm puts forth in the way to achieve it. The seed data of the crops are collected here, with the appropriate parameters like temperature, humidity and moisture content, which helps the crops to achieve a successful growth. In addition as the software, a mobile application for Android is being developed. The users are encouraged to enter parameters like temperature and their location will be taken automatically in this application in order to start the prediction process
Sports Broadcasting
Authors: Hull Kevin
Published: March 2024

With the thrill of the game and the excitement of documenting captivating moments for sports history, sports broadcasting is one of the most desired jobs among sports and journalism professionals. Designed to provide students with the skills to be successful in their careers, Sports Broadcasting is a comprehensive look at the field, with coverage of all aspects of the job that an entry-level sports broadcaster will need to know about.

The text begins with the history and background of the sports broadcasting industry. Students will next learn about modern topics that are critical in the business today, with an overview of the various outlets, including television, radio, streaming, and podcasting. They will then dive into lessons on the skills every sportscaster needs for success, including conducting in-person and remote interviews of coaches and players, writing for broadcast versus writing for other channels such as web and mobile devices, shooting games or events, producing a sportscast, and editing video for broadcast.

The career demands of both television and radio broadcasting are explored, and the increasing popularity of podcasting and streaming is examined. Students will journey through the steps involved in preparing for a live sports production, including play-by-play for radio and television, color commentary, and sideline reporting. A look into the different types of social media and their impact on sports broadcasting is followed by tips and advice on creating an effective social media presence and best practices for using social media as a sports broadcaster. The final chapters prepare students to pursue a career in sports broadcasting—offering practical advice on preparing resumes, portfolios, and job searching—and discuss issues and ethics relevant to modern-day sports broadcasting.

Throughout the text, Major Moments sidebars discuss defining moments in the history of sports broadcasting and their impact on the field today, while Pro Advice sidebars feature interviews with sports broadcasting professionals and offer career tips and practical advice.

With Sports Broadcasting, students will gain the knowledge and practical skills they need to be a well-rounded broadcaster in any segment of the field.
THE ROLE OF THE TEACHER AND THE LEARNING ENVIRONMENT
Authors: Dos Santos de Carvalho Juniel , Lopes de Almeida Tayane , Pereira da Rocha Diego , Mendes de Oliveira Zenayre
Published: March 2024

The present work entitled the role of the teacher and the learning environment, intends to reflect on the role of the teacher in e-learning, presenting the relevance in the innovative perspective in relation to the technological learning environment and the dynamic teacher x technology x students. In search of the consolidation of the theme, it was developed through bibliographical research as a deepening of the subject's knowledge, which is aimed at understanding the importance of the teacher as a mediator for social transformation and as a determinant in the construction of learning. In contemporary times, the role of the teacher is paramount so that we actually have a favorable environment for the development of learning. All the changes promoted by technological innovations must be seen as an anchor for the growth and development of learning and, in this perspective, understand that the role of the teacher will never be replaced, that is, it will always be paramount, since technological resources are here to stay and will always expand the modalities of teaching, thus providing students with diverse knowledge.
Developmental anomalies of the breast in the pediatric population
Authors: Özdamar Mustafa Yaşar
Published: March 2024

Pediatric breast conditions, which rarely require biopsy or excision and where follow-up with ultrasound is sufficient, are usually temporary. To understand childhood's physiological and pathological conditions, it is necessary to know the stages of intrauterine development, as in every organ. In neonatal and subsequent childhood periods, ultrasound is sufficient as a radiological examination after history and physical examination. Malign masses are sporadic, and benign masses are rarely encountered. Parental anxiety is an essential factor affecting patient management from the first admission to the final follow-up examination. For this reason, practitioners need to know information that reassures patients and parents with an appropriate methodology in developmental breast diseases.
A rare case of acute abdomen: acute appendicitis in a patient with midgut malrotation
Authors: Göktaş Abidin , Karacanoğlu Alperen , Bayazıtlı Şükrü Melih , Pak Mehmet Ali , Martlı Hüseyin Fahri , Akın Tezcan , Çetinkaya Erdinç , Tez Mesut , Er Sadettin
Published: March 2024

Acute appendicitis (AA) is the most common pathology requiring surgery in patients presenting to the emergency department with abdominal pain. AA is usually suspected and diagnosed with abdominal pain localized to the right lower quadrant based on anamnesis and physical examination findings. Atypical anatomical localizations of the appendix vermiformis often do not give typical anamnesis and examination findings and cause delays in diagnosis and treatment. In the presence of Midgut Malrotation (MM) and Situs Inversus Totalis (SIT), the appendix is localized in the left lower quadrant due to malrotation. In this article, we report a case of midgut non-rotation that presented with left lower quadrant pain and was diagnosed with acute appendicitis.
A rare coronary anomaly: the right coronary artery originating from the left anterior descending artery
Authors: Akyel Serdar
Published: March 2024

Coronary artery anomalies are structural variations which are usually detected incidentally as a result of coronary angiographies. Clinically, they are usually asymptomatic. The prevalence of the coronary anomalies was detected to be 1.3% in patients undergoing coronary angiography. Among coronary artery anomalies; the anomaly in which all coronary arteries are originating from a single coronary is called the single coronary artery (SCA). Among the single coronary artery anomalies; the right coronary artery (RCA) originating from the left anterior descending artery (LAD) is an even rarer condition with a rate around 0.009%. In this anomaly, while the RCA usually originates from the left main coronary artery (LMCA), it may also rarely be seen as a branch of the LAD.
Votación masiva legítima la revolución sandinista en NIcaragua
Authors: R. C.
Published: March 2024

No hay resúmenes disponibles.

ECA Estudios Centroamericanos, Vol. 39, No. 432-433, 1984: 817-822.
MEB 365 Gün Öykü Serisinde Yer Alan Kitapların Çevre Okuryazarlığı Açısından İncelenmesi
Authors: Kurt Gökçeli Füsun , Özer Merve
Published: March 2024

Bu araştırma MEB 365 gün öykü serisinde yer alan kitapların çevre okuryazarlığı açısından incelenmesi amacıyla gerçekleştirilmiştir. Araştırma, nitel araştırma desenlerinden doküman incelemesi yoluyla yürütülmüştür. Bu kapsamda MEB 365 Gün Öykü serisinde yer alan kitaplara https://365gunoyku.meb.gov.tr/#/ sitesinden ulaşılmıştır ve dokümanların orijinalliği teyit edilmiştir. Bu araştırmanın veri analizinde doküman analizinden yararlanılmıştır. Araştırma sonucunda toplam 53 kitaptan 17 tanesinin çevre okuryazarlığı ile doğrudan, 14 kitabın ise dolaylı olarak ilişkili olduğu tespit edilmiştir. Araştırmada ele alınan çevre okuryazarlığı ile doğrudan ilişkili olan kitaplarda daha çok ve çeşitli sözcük ve kavramın yer aldığı, dolaylı olarak ilişkili olan kitaplarda ise buna kıyasla sayı ve çeşitlilik açısından daha az sözcük ve kavramın yer aldığı sonucu ortaya çıkmıştır. Ele alınan resimli kitaplar dil ve üslup olarak incelendiğinde kitapların hepsinin dil ve üslup açısından çocukların yaş grubuna, gelişim düzeylerine uygun olduğu, sade ve anlaşılır bir dil kullanıldığı sonucu tespit edilmiştir. Araştırmada ele alınan resimli kitaplar, çevre okuryazarlığının boyutları açısından incelendiğinde ise daha çok bilişsel boyutun vurgulandığı, davranışsal ve duyuşsal boyutun daha yüzeysel bir şekilde ele alındığı belirlenmiştir. Araştırmanın sonucu ile paralel bir şekilde çeşitli önerilerde bulunulmuştur.
Government of Georgia’s Public Rhetoric
Authors: Kutidze Davit
Published: March 2024

Russian propaganda exploits the idea of freedom of information to promote disinformation. It aims to sow confusion using conspiracy theories and ensure there is not a single issue for society to consolidate. As a well-tested approach, this malicious practice of “brainwashing” can be applied in across countries or circumstances. Observation of statements made by Georgian authorities leads to the hypothesis that methods of Russian propaganda have been embedded in Georgia’s ruling Georgian Dream party’s rhetoric. Therefore, the focus of this paper is to study features of the Georgian government’s public communication through the prism of propaganda and test whether its rhetoric is analogous to Russia’s propaganda toolkit. The study shows apparent parallels between these two phenomena. The Georgian government’s rhetoric implies vociferous accusations against people being critical of the authorities, cultivating groundless fears among the population and shaping a negative agenda.
Women’s Lifestyle Magazine Instagram Profiles
Authors: Dąbrowska-Cendrowska Olga , Sałek Weronika , Walkowiak Natalia
Published: March 2024

The authors have studied Instagram profiles of women’s magazines published in Poland, France and the United Kingdom: Twój Styl, Vogue PL, Marie Claire, Vogue FR, Vogue GB and Stylist. All (464) posts published on Instagram profiles in April 2022 were analyzed. The aim of the research was to show similarities and differences in the ways of communication via Instagram profiles. This paper’s chosen methodology is qualitive and quantitative content analysis and is based on types of posts and their functions and on audience reactions to posted content. The results proved that the similarities emerge between the profiles of magazines that operate in specific media markets – the content and communication is adapted to the country in which the magazine operates. This study contributes to academic literature on the integration of traditional media with new media as a response to media convergence.
Persepsi Guru terhadap Penerapan Konsep Merdeka Belajar di Sekolah Dasar
Authors: Faisal Rifki , Rahman Syarifah Aeni , Babo Rosleny
Published: March 2024

Penelitian ini bertujuan untuk mengetahui persepsi guru pada penerapan konsep merdeka belajar di SD Negeri Alluka. Jenis penelitian yang digunakan adalah kualitatif deskriptif dengan pendekatan fenomenologi. Pengumpulan data dilakukan dengan menggunakan kuesioner atau wawancara.  Berdasarkan hasil penelitian melalui proses wawancara dengan beberapa poin pertanyaan maka diperoleh hasil bahwa persepsi guru terhadap penerapan merdeka belajar sudah baik namun yang masih menjadi kendala dalam penerapan merdeka belajar adalah minimnya pemahaman guru terkait merdeka belajar secara luas. Berdasarkan hasil penelitian, dapat disimpulkan bahwa persepsi guru pada penerapan merdeka belajar di SD Negeri Alluka  sudah baik namun masih perlu adanya sosialisasi khusus agar memberikan pemahaman secara luas terkait merdeka belajar.
Penerapan Strategi Pembelajaran Crossword Puzzle untuk Meningkatkan Hasil Belajar IPS Siswa Sekolah Dasar
Authors: Arfianda Reza , Nurdin  , Syamsuriyanti
Published: March 2024

Tujuan penelitian ini adalah untuk mengetahui peningkatan hasil belajar IPS melalui penerapan strategi pembelajaran Crossword Puzzle (teka-teki silang) pada siswa kelas IV SDN Romanglasa Kecamatan Bontonompo Kabupaten Gowa.Penelitian ini merupakan penelitian tindakan kelas atau sering disebut dengan CAR (Classroom Action Research). Instrument dalam penelitian ini dilakukan dengan tas hasil belajar, observasi dan dokumentasi  instrumen yang digunakan. Pengambillan data dilakukan dengan wawancara, observasi, dokumentasi, tes, dan catatan lapangan. Adapun hasil penelitian ini menunjukan bahwa hasil belajar IPS pada siswa kelas IV SDN Romanglasa Kecematan Bontonompo Kabupaten Gowa dengan standar kompetensi Menghargai peranan tokoh pejuang dan masyarakat dalam mempersiapkan dan mempertahankan Kemerdekaan Indonesia, telah mengalami peningkatan setelah menerapkan strategi pembelajaran cwossword puzzle (teka teki silang) dalam pembelajaran. Hal ini terbukti dengan adanya peningkatan hasil belajar siswa dari siklus I ke siklus II yang mana pada siklus I presentase ketuntasan siswa 64% sedangkan pada siklus II presentase mencapai 87%.
Analisis Kesulitan Belajar Matematika Materi Operasi Bilangan Bulat Pada Siswa Sekolah Dasar
Authors: Shah Khaf , Syarifuddin Ahmad , Hamzah Amir , Handayani Tutut
Published: March 2024

Tujuan penelitian: (1) Untuk mengetahui apa saja kesulitan belajar yang dialami siswa belajar matematika materi operasi penjumlahan dan pengurangan bilangan bulat pada kelas V A di SDN 6 Banyuasin III dan SDN 24 Banyuasin III, (2) Untuk mengetahui faktor-faktor kesulitan belajar matematika materi penjumlahan dan pengurangan operasi bilangan bulat pada kelas V A di SDN 6 Banyuasin III dan SDN 24 Banyuasin III (3) Untuk mengetahui bagaimana upaya yang dilakukan dalam mengatasi kesulitan belajar matematika materi operasi penjumlahan dan pengurangan bilangan bulat pada kelas V A di SDN 6 Banyuasin III dan SDN 24 Banyuasin III. Jenis penelitian dalam hal ini menggunakan pendekatan deskriptif kualitatif dengan menggunakan rancangan multisitus dan teknik pengumpulan data melalui observasi, wawancara, dan dokumentasi. Analisis data dilakukan dengan reduksi data, penyajian data, dan penarikan kesimpulan. Berdasarkan hasil penelitian di SDN 6 Banyuasin III dan SDN 24 Banyuasin III ditemukannya persamaan dan perbedaan pada siswa yang mengalami kesulitan pada Matematika khususnya materi operasi bilangan bulat. Persamaannya ialah siswa pada kedua sekolah tersebut mengalami kesulitan dalam memahami pembelajaran dikarenakan banyaknya siswa yang kurang mampu dalam membaca dan memiliki daya ingat yang rendah, dan perbedaan di SDN 6 Banyuasin III terdapat kendala pada gurunya yang kesulitan memilih metode pembelajaran dan media yang tepat sedangkan di SDN 24 Banyuasin III siswa mayoritas tidak serius dalam belajar dan lebih banyak bermain. Berdasarkan permasalahan tersebut maka upaya yang dilakukan oleh kedua sekolah tersebut melakukan pengayaan dan remedial.
GAMIFICAÇÃO NO ENSINO FUNDAMENTAL: ESTIMULANDO O INTERESSE E A PARTICIPAÇÃO DOS ALUNOS
Authors: Narciso Rodi , Fernandes Allysson Barbosa , Azevedo Celine Maria de Sousa , Guimarães Christiane Diniz , Silva Fernanda Aparecida da , Burin Geliane Regina Esposito , Alves Ivanilde Filgueira , Vergara Mariela Viviana Montecinos , Carvalho Maria de Guadalupe Maciel , Cruz Vera Aparecida Teixeira da
Published: March 2024

Este estudo investigou a implementação da gamificação no ensino fundamental, focando em como essa abordagem pode tornar as aulas mais envolventes e motivadoras. O objetivo geral foi analisar a eficácia da gamificação em melhorar o engajamento e o desempenho dos alunos, além de contribuir para o desenvolvimento de habilidades socioemocionais. Utilizou-se uma metodologia de revisão de literatura, examinando estudos prévios que abordavam a aplicação de elementos de jogos em contextos educacionais. Os resultados indicaram que a gamificação eleva a motivação e o engajamento dos alunos, melhora a retenção de conhecimento e promove o desenvolvimento de competências importantes para o século XXI. No entanto, a análise também revelou lacunas, especialmente em relação aos efeitos a longo prazo da gamificação e sua aplicabilidade em diferentes contextos educacionais. As considerações finais destacaram a gamificação como uma estratégia pedagógica que merece atenção contínua para explorar plenamente seu potencial educativo.
Variations of polyphenols and carbohydrates of Emiliania huxleyi grown under simulated ocean acidification conditions
Authors: Rico Milagros , Santiago-Díaz Paula , Samperio-Ramos Guillermo , González-Dávila Melchor , Santana-Casiano Juana Magdalena
Published: March 2024

Abstract. Global environmental changes strongly affect the growth and biochemical composition of microalgae. Cultures of the coccolithophore Emiliania huxleyi were grown under four different CO2-controlled pH conditions (7.75, 7.90, 8.10, and 8.25) to improve understanding of the adaptive mechanisms of these organisms through changes in phenolic compounds and carbohydrate content and composition under ocean acidification (OA) scenarios. The highest algal biomass peaks, 1.07 (± 0.10) and 1.04 (± 0.06) × 108 cells L−1, were observed in the microcosms with intermediate CO2 levels (pH 8.10 and 7.90 respectively). Intra- and extracellular phenolic compounds were identified and quantified by Reverse Phase-High Performance Liquid Chromatography (RP-HPLC). The highest concentrations of total exuded phenolics were found in cultures with lower cell densities, at pH 8.25 (43±3 nM) and 7.75 (18.0±0.9 nM). Accumulation of intracellular phenolic compounds was observed in cells with decreasing pH, reaching the maximum level (9.24±0.19 attomole cell-1) at the lowest pH (7.75). The total carbohydrate content inside the cells increased with decreasing pH from 8.25 to 8.10, remaining constant at pH 7.90, and decreasing at lower pH. The presence of antioxidants was determined by 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical inhibition and ferric-reducing antioxidant power (FRAP) assays. The highest activity in both tests was exhibited by cells grown at pH 7.75.
Discrepant long-term nitrogen mineralization in soil at early and later period after fertilization
Authors: Zou Hongqin , Xu Minggang , Ren Keyu , Li Dejin , Zhang Wenju , Lu Changai , Duan Yinghua
Published: March 2024

Abstract. Soil mineralization, the process of organic to inorganic N which balances the N uptake by crop and N loss to environment, was always quantified by short-term (one day to thirty weeks) incubation experiment. However, the residuary effect of fertilization for N mineralization, especially manure application, is long-term existed, which is important and thought to be shaped by fertilization, soil properties, and climate. Here, we defined and examined dynamic shifts in long-term N mineralization (LT-Nmin) between the first decade and later period after treated with no-fertilizer, conventional fertilizer with/without manure, fertilizer with stover return, in six typical agricultural zones over multiple decades. Soil total N (TN) and available N (AN) increased at rates of 10.1–58.2 mg· kg-1·yr-1 and 1.41–4.13 mg· kg-1·yr-1, respectively, by manure application at five sites, suggesting that manure enhanced both soil N storage and availability. The LT-Nmin rate, defined as slope of the correlation between soil AN and TN indicated that AN increased by 70–81 mg per gram of TN increase, regardless of fertilization. Considering the fertilization period, the LT-Nmin rate with manure application were higher in the first decade (42–181 mg·g-1) than those in later period (33–92 mg·g-1) at all sites. Variance partitioning analysis showed that soil properties contributed 35 % to LT-Nmin in the first decade and increased to 45 % in the later period, while climatic conditions contributed 19 % first, but 8 % in the later period. Structural equation modeling suggested that LT-Nmin was directly affected by annual temperature, with a standardized path coefficient of 0.86 in the first decade and 0.45 in the later period. These results showed that the residual N in soil was mineralized with a high rate in the first decade after fertilization and then slowed down, and the interactions between climate and soil had an enhanced impact on LT- Nmin in later years of fertilization. This context-dependent understanding of interactions between soil properties, N cycling, and climate can thus inform soil management strategies to improve N availability and reduce the N loss to environment.
Global estimates of reactive nitrogen components during 2000–2100 based on the multi-stage model
Authors: Li Rui , Gao Yining , Zhang Lijia , Shen Yubing , Wang Gehui
Published: March 2024

Abstract. High contents of reactive nitrogen components aggravate air pollution and could also impact ecosystem structure and function across the terrestrial-aquatic-marine continuum. However, the long-term historical trends and future prediction of reactive nitrogen components at the global scale still remains high uncertainties. In our study, the field observations, satellite products, model output, and many other covariates were integrated into the machine-learning model to capture the global patterns of reactive nitrogen components during 2000–2019. In order to decrease the estimate uncertainties in the future scenarios, the constructed reactive nitrogen component dataset during the historical period was then utilized as the constraint to calibrate the CMIP6 dataset in four scenarios. The results suggested the cross-validation (CV) R2 values of four species showed satisfied performance (R2 > 0.55). The concentrations of estimated reactive nitrogen components in China experienced persistent increases during 2000–2013, while they suffered from drastic decreases since 2013 except NH3. It might be associated with the impact of clean air policy. However, these compounds in Europe and the United States remained relatively stable since 2000. In the future scenarios, SSP3-7.0 (traditional energy scenario) and SSP1-2.6 (carbon neutrality scenario) showed the highest and lowest reactive nitrogen component concentrations, respectively. Although the reactive nitrogen concentrations in some heavy-pollution scenarios (SSP3-7.0) also experienced decreases during 2020–2100, SSP1-2.6 and SSP2-4.5 (middle emission scenario) still kept more rapid decreasing trends. Our results emphasize the need for carbon-neutrality pathway to reduce global atmospheric N pollution.
Global marine gravity gradient tensor inverted from altimetry-derived deflections of the vertical: CUGB2023GRAD
Authors: Annan Richard Fiifi , Wan Xiaoyun , Hao Ruijie , Wang Fei
Published: March 2024

Abstract. Geodetic applications of altimetry have largely been inversions of gravity anomaly. Previous studies of Earth's gravity gradient tensor mostly presented only the vertical gravity gradient (VGG). However, there are six unique signals that constitute the gravity gradient tensor. Gravity gradients are signals suitable for detecting short-wavelength topographic and tectonic features. They are derived from double differentiation of the disturbing potential and hence are susceptible to noise amplification which was exacerbated by low across-track resolution of altimetry data in the past. However, current generation of altimetry observations have improved spatial resolutions, with some better than 5 km. Therefore, this study takes advantage of current high-resolution altimetry datasets to present CUGB2023GRAD, a global (latitudinal limits of ±80°) 1 arcmin model of Earth's gravity gradient tensor over the oceans using deflections of the vertical as inputs in the wavenumber domain. The results are first assessed via Laplace's equation, whereby the resultant residual gradient is virtually zero everywhere. Further analysis at local regions in the Arctic and south Indian oceans showed that Txy, Txz and Tyz are the most dominant gravity gradients for bathymetric studies. This proves that bathymetric signatures in the non-diagonal tensor components are worth exploiting. Bathymetric coherence analysis of Tzz over the Tonga Trench showed strong correlation with multibeam shipboard depths. This study proves that current generation of altimetry geodetic missions can effectively resolve Earth's gravity gradient tensor. The CUGB2023GRAD model data can be freely accessed at https://doi.org/10.5281/zenodo.10511125 (Annan et al., 2024).
Nearshore tsunami amplitudes across the Maldives archipelago due to worst-case seismic scenarios in the Indian Ocean
Authors: Rasheed Shuaib , Warder Simon C. , Plancherel Yves , Piggott Matthew D.
Published: March 2024

Abstract. The Maldives face the threat of tsunamis from a multitude of sources. However, the limited availability of critical data, such as bathymetry (a recurrent problem for many island nations), has meant that the impact of these threats has not been studied at an island scale. Conducting studies of tsunami propagation at the island scale but across multiple atolls is also a challenging task due to the large domain and high resolution required for modelling. Here we use a high-resolution bathymetry dataset of the Maldives archipelago, as well as corresponding high numerical model resolution, to carry out a scenario-based tsunami hazard assessment for the entire Maldives archipelago to investigate the potential impact of plausible far-field tsunamis across the Indian Ocean at the nearshore island scales across the atolls. The results indicate that the bathymetry of the atolls, which are characterized by very steep boundaries offshore, is extremely efficient in absorbing and redirecting incoming tsunami waves. Results also highlight the importance that local effects have in modulating tsunami amplitude nearshore, including the location of the atoll in question, the location of a given island within the atoll, and the distance of that island to the reef, as well as a variety of other factors. We also find that the refraction and diffraction of tsunami waves within individual atolls contribute to the maximum tsunami amplitude patterns observed across the islands in the atolls. The findings from this study contribute to a better understanding of tsunamis across complex atoll systems and will help decision and policy makers in the Maldives assess the potential impact of tsunamis across individual islands. An online tool is provided which presents users with a simple interface, allowing the wider community to browse the simulation results presented here and assess the potential impact of tsunamis at the local scale.
Scaling and intermittent properties of oceanic and atmospheric pCO2 time series and their difference
Authors: Robache Kévin , Schmitt François G. , Huang Yongxiang
Published: March 2024

Abstract. In this study the multi-scale dynamics of 38 oceanic and atmospheric pCO2 time series from fixed Eulerian buoys recorded with three-hour resolution are considered. The difference between these time series, the sea surface temperature and the sea surface salinity data were also studied. These series possess multi-scale turbulent-like fluctuations and display scaling properties from three hours to the annual scale. Scaling exponents are estimated through Fourier analysis and their average quantities considered globally for all parameters, as well as for different ecosystems (e.g. coastal shelf, coral reefs, open ocean). Sea surface temperature is the only parameter for which a spectral slope close to 5/3 is found, corresponding to a passive scalar in homogeneous and isotropic turbulence. The other parameters had smaller spectral slopes, from 1.18 to 1.35. By using empirical mode decomposition of the time series, together with generalized Hilbert spectral analysis, the intermittency of the time series was considered in the multifractal framework. Concave moment functions were estimated and Hurst index and intermittency parameters estimated in the framework of a lognormal multifractal fit. It is the first time that atmospheric and oceanic pCO2 and their difference ∆pCO2 are studied using such intermittent turbulence framework. The ∆pCO2 time series was shown to possess power-law scaling with an exponent of β = 1.32 ± 0.2.
Regime shifts in Arctic terrestrial hydrology manifested from impacts of climate warming
Authors: Rawlins Michael A. , Karmalkar Ambarish V.
Published: March 2024

Abstract. Anthropogenic warming in the Arctic is causing hydrological cycle intensification and permafrost thaw, with implications for flows of water, carbon, and energy from terrestrial biomes to coastal zones. To better understand the likely impacts of these changes, we used a hydrology model driven by meteorological data from atmospheric reanalysis and two global climate models for the period 1980–2100. The hydrology model accounts for soil freeze–thaw processes and was applied across the pan-Arctic drainage basin. The simulations point to greater changes over northernmost areas of the basin underlain by permafrost and to the western Arctic. An acceleration of simulated river discharge over the recent past is commensurate with trends drawn from observations and reported in other studies. Between early-century (2000–2019) and late-century (2080–2099) periods, the model simulations indicate an increase in annual total runoff of 17 %–25 %, while the proportion of runoff emanating from subsurface pathways is projected to increase by 13 %–30 %, with the largest changes noted in summer and autumn and across areas with permafrost. Most notably, runoff contributions to river discharge shift to northern parts of the Arctic Basin that contain greater amounts of soil carbon. Each season sees an increase in subsurface runoff; spring is the only season where surface runoff dominates the rise in total runoff, and summer experiences a decline in total runoff despite an increase in the subsurface component. The greater changes that are seen in areas where permafrost exists support the notion that increased soil thaw is shifting hydrological contributions to more subsurface flow. The manifestations of warming, hydrological cycle intensification, and permafrost thaw will impact Arctic terrestrial and coastal environments through altered river flows and the materials they transport.
The complex basal morphology and ice dynamics of the Nansen Ice Shelf, East Antarctica
Authors: Dow Christine F. , Mueller Derek , Wray Peter , Friedrichs Drew , Forrest Alexander L. , McInerney Jasmin B. , Greenbaum Jamin , Blankenship Donald D. , Lee Choon Ki , Lee Won Sang
Published: March 2024

Abstract. Ice shelf dynamics and morphology play an important role in the stability of floating bodies of ice by driving fracturing that can lead to calving, in turn impacting the ability of the ice shelf to buttress upstream grounded ice. Following a 2016 calving event at the Nansen Ice Shelf (NIS), East Antarctica, we collected airborne and ground-based radar data to map ice thickness across the shelf. We combine these data with published satellite-derived data to examine the spatial variations in ice shelf draft, the cause and effects of ice shelf strain rates, and the possibility that a suture zone may be channelizing ocean water and altering patterns of sub-ice-shelf melt and freeze-on. We also use our datasets to assess limitations that may arise from relying on hydrostatic-balance equations applied to ice surface elevation to determine ice draft morphology. We find that the Nansen Ice Shelf has a highly variable basal morphology driven primarily by the formation of basal fractures near the onset of the ice shelf suture zone. This morphology is reflected in the ice shelf strain rates but not in the calculated hydrostatic-balance thickness, which underestimates the scale of variability at the ice shelf base. Enhanced melt rates near the ice shelf terminus and in steep regions of the channelized suture zone, along with relatively thin ice in the suture zone, appear to represent vulnerable areas in the NIS. This morphology, combined with ice dynamics, induce strain that has led to the formation of transverse fractures within the suture zone, resulting in large-scale calving events. Similar transverse fractures at other Antarctic ice shelves may also be driven by highly variable morphology, and predicting their formation and evolution could aid projections of ice shelf stability.
Why is summertime Arctic sea ice drift speed projected to decrease?
Authors: Ward Jamie L. , Tandon Neil F.
Published: March 2024

Abstract. Alongside declining Arctic sea ice cover during the satellite era, there have also been positive trends in sea ice Arctic average drift speed (AADS) during both winter and summer. This increasing sea ice motion is an important consideration for marine transportation as well as a potential feedback on the rate of sea ice area decline. Earlier studies have shown that nearly all modern global climate models (GCMs) produce positive March (winter) AADS trends for both the historical period and future warming scenarios. However, most GCMs do not produce positive September (summer) AADS trends during the historical period, and nearly all GCMs project decreases in September AADS with future warming. This study seeks to understand the mechanisms driving these projected summertime AADS decreases using output from 17 models participating in the Coupled Model Intercomparison Project phase 6 (CMIP6) along with 10 runs of the Community Earth System Model version 2 Large Ensemble (CESM2-LE). The CESM2-LE analysis reveals that the projected summertime AADS decreases are due to changes in sea surface height (SSH) and wind stress which act to reduce sea ice motion in the Beaufort Gyre and Transpolar Drift. During March, changes in internal stress and wind stress counteract tilt force changes and produce positive drift speed trends. The simulated wintertime mechanisms are supported by earlier observational studies, which gives confidence that the mechanisms driving summertime projections are likely also at work in the real world. However, the precise strength of these mechanisms is likely not realistic during summer, and additional research is needed to assess whether the simulated summertime internal stress changes are too weak compared to changes in other forces. The projected summertime wind stress changes are associated with reduced sea level pressure north of Greenland, which is expected with the northward shift of the jet streams. The projected summertime SSH changes are primarily due to freshening of the Arctic Ocean (i.e., halosteric expansion), with thermal expansion acting as a secondary contribution. The associated ocean circulation changes lead to additional piling up of water in the Russian shelf regions, which further reinforces the SSH increase. Analysis of CMIP6 output provides preliminary evidence that some combination of wind stress and SSH changes is also responsible for projected AADS decreases in other models, but more work is needed to assess mechanisms in more detail. Altogether, our results motivate additional studies to understand the roles of SSH and wind stress in driving changes in Arctic sea ice motion.
БАТЫР В КАЗАХСКОМ ЭПОСЕ КАК АРХЕТИП ГЕРОЯ: ТЕОРИИ А. МАРГУЛАНА И СОВРЕМЕННЫХ ИССЛЕДОВАТЕЛЕЙ
Authors:   Ә. Марғұлан атындағы Павлодар педагогикалық университеті, Темиргазина Зифа
Published: March 2024

The article deals with the image of a hero in the Kazakh heroic epic in the works of academician Alkey Margulan from the point of view of the theory of archetypes. We have established forms of representation of the cultural archetype "batyr" as an element of the Kazakh cultural unconscious, influencing the modern patterns of Kazakh behavior. Modern researchers say that the archetypal nature of batyrs in the Kazakh culture of nomads is expressed in the existence of a social institution of batyrs, which has developed over many centuries of the existence of the Turks
ПРОБЛЕМА ВИКОНАННЯ ПОСАДОВИХ ОБОВ’ЯЗКІВ СЛУЖБОВЦЯМИ ОРГАНІВ ДЕРЖАВНОЇ ВЛАДИ В КОНТЕКСТІ АДМІНІСТРУВАННЯ УПРАВЛІНСЬКОЇ ДІЯЛЬНОСТІ
Authors: Ярмистий М.
Published: March 2024

В статті розглядається проблема ефективного виконання посадових обов’язків службовцями органів державної влади в процесі адміністрування управлінської діяльності. Вказані основні фактори (причини), які впливають на ефективність діяльності державних службовців. Проведена класифікація напрямів підвищення ефективності та результативності виконання посадових обов’язків службовців органів державної влади: удосконалення нормативно-правової актів щодо діяльності державних службовців; організація діяльності службовців та оптимізація трудових відносин; гуманізація службової діяльності, оцінка та стимулювання персоналу за результатами виконання посадових обов’язків. Запропоновано заходи з оптимізації адміністрування управлінської діяльності
KNOWLEDGE REGARDING MINIMUM ESSENTIAL COMMODITIES OF 5*5 MATRIX OF RMNCH+A AMONG HEALTH WORKERS IN KAIMUR DISTRICT
Authors: Shah Kumari Anisha
Published: March 2024

1. Kumari Anisha Shah, Student, IIHMR Universit; 2. Dr. J.P. Singh, Professor, IIHMR University
TO STUDY TURNAROUND TIME AND TO IDENTIFY BOTTLENECKS IN THE OPD THAT CAUSES HIGHER TURNAROUND TIME
Authors: Tyagi Niti
Published: March 2024

1. Niti Tyagi, Student, IIHMR University ; 2. Dr. Gautam Sadhu, Professor, IIHMR University
FACILITY SURVEY OF DELIVERY POINTS IN PANNA DISTRICT, MADHYA PRADESH
Authors: Kiran Usha
Published: March 2024

1. Usha Kiran, Student, IIHMR University; 2. Dr. Anoop Khanna, Professor, IIHMR University
ASSESSING KNOWLEDGE, ATTITUDES AND PRACTICES AMONG EXPECTING AND NEW MOTHERS ABOUT NEWBORN CARE IN PABRA, MANJHAUL, KAMLA, KAZI CHAK VILLAGES OF BEGUSARAI DISTRICT IN BIHAR
Authors: Menon Prasija Jagadeesh
Published: March 2024

1. Prasija Jagadeesh Menon, Student, IIHMR University ; 2. Dr. J.P. Singh, Professor, IIHMR University
FACTORS INFLUENCING THE IMPLEMENTATION OF E-HEALTH: A SYSTEMATIC REVIEW
Authors: Gureliya Sunita
Published: March 2024

1. Sunita Gureliya, Student, IIHMR University ; 2. Dr. Anoop Khanna, Professor, IIHMR University
PATIENTS PERCEPTION AND ACCEPTANCE TOWARDS TELE NEPHROLOGY
Authors: Gulgulia Ria
Published: March 2024

1. Ria Gulgulia Student, IIHMR University ; 2. Dr. Anoop Khanna, Professor, IIHMR University
STUDY ON USG TAT (TURNAROUND TIME) AT KIMS (SUNSHINE), SECUNDERABAD: OPTIMIZING EFFICIENCY AND PATIENT CARE
Authors: Singh Aashna
Published: March 2024

1. Aashna Singh Student, IIHMR University ; 2. Dr. Anoop Khanna , Professor, IIHMR University
RELATIONSHIP BETWEEN MATERNAL KNOWLEDGE AND BELIEFS REGARDING NUTRITION AND CHILDHOOD NUTRITIONAL STATUS
Authors: Bhagat Keerti
Published: March 2024

1. Keerti Bhagat, Student, IIHMR University ; 2. Dr. J.P. Singh, Professor, IIHMR University
STUDY ON OPTIMIZING INVENTORY BY APPLICATION OF ABC ANALYSIS, FORECASTING AND ECONOMIC ORDER QUANTITY AT SANKARA EYE HOSPITAL, COIMBATORE
Authors: Shah Smit
Published: March 2024

1. Smit Shah, Student, IIHMR University ; 2. Dr. Anoop Khanna, Professor, IIHMR University
Sentiment-aware Content Recommendation using LSTM-based Collaborative Filtering
Authors: Morzelona Romi , Batra Sweta
Published: March 2024

The need for this work arises from the ever-growing demand for more precise and efficient content recommendation systems. Existing methods, while serving their purpose, are not without limitations. They often struggle to capture the intricate nuances of user sentiment, which is crucial for personalized content recommendations. This limitation results in suboptimal precision, accuracy, recall, and speed, ultimately leading to less satisfying user experiences. To address these shortcomings, this paper introduces a novel approach, leveraging the fusion of Bidirectional Long Short-Term Memory (BiLSTM) with BERT, combined with a Graph Convolutional Network (GCN). This innovative model brings together the power of natural language processing and graph-based techniques, enhancing the efficiency of sentiment-aware content recommendation and filtering. The use of BiLSTM and BERT allows our model to grasp the contextual intricacies of user preferences, making it more adept at discerning sentiment in textual data samples. The incorporation of GCN further enriches our model's capabilities by leveraging the underlying connections between users and content, enabling it to provide more personalized recommendations. The advantages of our proposed approach become evident through rigorous testing on multiple contextual datasets. Compared to existing methods, our model exhibits notable improvements, with an 8.3% boost in precision, an 8.5% increase in accuracy, a 5.9% rise in recall, and a 4.5% enhancement in speed. Moreover, our model achieves a 7.5% better Area Under the Curve (AUC), solidifying its effectiveness in sentiment-aware content recommendation.

In conclusion, this work fills a crucial gap in the realm of content recommendation by introducing a sophisticated model that excels in capturing user sentiment and delivering more precise and efficient recommendations. These advancements pave the way for improved user experiences and hold significant implications for a wide range of applications, from e-commerce to personalized content delivery platforms.