bluuebunny/crossref_metadata_2025 huggingface dataset:
Market Segmentation of Delivery Apps Using Latent Class Logit Model
Authors:   JEJU NATIONAL UNICERSITY TOURISM,BUSINESS,AND ECONOMIC RESEARCH INSTITUTE, Hong Ji Yun , Kang Myeong Ji , Hyun Jung Suk
Published: August 2024

As the usage of domestic delivery apps skyrockets, the market sees a rapid expansion. Over the past five years, the transaction volume has amplified more than ninefold, predominantly propelled by private delivery apps. However, the rising service fees of these apps have sparked dissatisfaction among consumers and small business owners, drawing attention to the emergence of public delivery apps. These apps could potentially achieve numerous social objectives, such as broadening consumer choices and invigorating local markets. In this study, we aimed to understand consumers' preferences for delivery apps and explore ways to improve public delivery apps and revitalize local economies through them. To achieve this, we analyzed consumer preferences for market segmentation of delivery apps using latent class logt model. This study proposes marketing strategies to increase the usage of public delivery apps and revitalize local economies.
Practices of Dental Care and Treatment Provided to Pediatric Patients in Private Dental Clinics in Lahore, Pakistan
Authors: Javed Memoona , Wyne Amjad H , Hassan Hammad
Published: August 2024

Background and Objective: With the high prevalence of dental caries among children in Pakistan and the limited availability of pediatric dentists, dental care is provided majorly by general dentists. This study aims to determine the preventive dental care provided to pediatric dental patients by general dentists in private practice settings in Lahore.

Methods: This cross-sectional study was conducted among 185 general dentists working in private dental clinics in Lahore, utilizing an online validated questionnaire designed by the authors and distributed through email and WhatsApp using a purposive sampling technique. Data were analyzed using statistical software, and p-value of 0.05 was taken as significant.

Results: Most respondents (73.5%) reported the unavailability of pediatric dentists in their clinics. About one-third of the respondents always chose to refer their child to a pediatric dentist. About 48.1% of the general dentists were “somewhat aware” of the behavioral management techniques. Pediatric-specific dental treatment services were more frequently provided in clinics where a pediatric dentist was available. Fillings were the most frequent (90.8%) treatment services, along with extractions (79.5%), pulpectomies (69.2%), and pulpotomies (65.9%). Notably, 74.1% of the general dentists had not attended any workshop or course in pediatric dentistry.

Conclusion: General dentists in private practices provide minimal dental treatment to pediatric patients, with a significant number lacking formal training in pediatric dentistry. This highlights the need for formal training programs to improve the quality of pediatric dental care.
Pengetahuan, sikap dan perilaku ibu di Puskesmas Jurumudi Baru terkait 1000 hari pertama kehidupan
Authors: Tjunaity Stefany , Tirtasari Silviana
Published: August 2024

Seribu hari pertama kehidupan seseorang anak diawali pada saat embrio terbentuk di dalam rahim serta berakhir waktu anak menggapai umur 2 tahun. Kesalahan pada 1000 hari pertama kehidupan seseorang anak bisa membatasi pertumbuhan serta perkembangannya secara maksimal, sehingga masa ini krusial untuk tumbuh kembang seorang anak. Para ibu butuh mempunyai pengetahuan, sikap, serta perilaku yang baik sepanjang seribu hari pertama kehidupan demi menjaga mutu kehamilan serta keturunannya. Studi ini merupakan studi deskriptif menggunakan desain cross sectional dengan teknik pengambilan data menggunakan total sampling pada 111 ibu yang memiliki balita di Puskesmas Jurumudi Baru. Tujuan studi ini untuk mengenali pengetahuan, sikap, serta perilaku ibu terkait 1000 hari pertama kehidupan. Informasi mengenai perilaku, sikap dan pengetahuan dikumpulkan melalui kuesioner langsung. Data yang didapatkan pada tingkat pengetahuan ibu mengenai 1000 hari pertama kehidupan, 27 (24,3%) partisipan berpengetahuan baik, sikap ibu mengenai 1000 hari pertama kehidupan sebanyak 69 (62,2%) partisipan bersikap baik dan perilaku ibu mengenai 1000 hari pertama kehidupan sebanyak 80 (72,1%) partisipan berperilaku baik. Hasil studi ini menunjukkan walaupun rata-rata pengetahuan ibu cukup, tetapi dapat memberikan sikap serta perilaku baik terhadap anak.
Depresi dan kerentanan lansia di panti wreda wilayah Jabodetabek
Authors: Lee Yuffie Elizabeth , Biromo Anastasia Ratnawati
Published: August 2024

Depresi adalah suatu gangguan psikologis yang sering ditemukan pada lansia, khususnya lansia yang tinggal di panti dan jauh dari keluarga. Sementara frailty merupakan kondisi yang umum ditemui pada lansia sebagai salah satu dampak dari proses penuaan. Berbagai penelitian mendapatkan hasil bahwa depresi dan frailty berhubungan erat, dimana depresi dapat memperberat kondisi frailty dan frailty juga dapat memperberat depresi pada lansia. Penelitian ini dilakukan untuk mengetahui hubungan antara depresi dan frailty pada lansia yang tinggal di panti. Studi potong lintang analitik ini melibatkan 124 responden lansia berusia > 60 tahun dengan teknik pengambilan data consecutive sampling. Prevalensi depresi diukur dengan menggunakan kuesioner Geriatric Depression Scale 15 (GDS-15) dan prevalensi frailty diukur dengan FRAIL Scale. Hasil penelitian mendapatkan sebanyak 50 responden (61,7%) mengalami depresi dan frail dan 31 responden (38,3%) mengalami depresi namun tidak frail. Studi mendapatkan adanya hubungan bermakna antara depresi dan frailty dengan p-value 0,001 dan PRR 1,89. Depresi dan frailty dapat terjadi secara bersamaan sekaligus memperberat satu sama lain.
Hubungan hipertensi dengan osteoarthritis genu (radiografi konvensional) di RS Royal Taruma Jakarta Barat
Authors: Fransisco Melkior Michael , Widjaya Inge Friska
Published: August 2024

Osteoarthritis (OA) genu, penyakit sendi degeneratif yang disebabkan oleh pemakaian berulang atau ‘wear-and-tear’ pada sendi lutut, dinyatakan WHO pada tahun 2023 sebagai prevalensi terbanyak dari OA. Salah satu modalitas diagnostik yang dapat dipakai ialah menggunakan radiografi konvesional genu. Osteoarthritis genu dapat disebabkan oleh banyak faktor, namun ada faktor resiko yang pengaruhnya masih kurang pasti, yaitu hipertensi. Komplikasi kedua penyakit tersebut sama-sama dapat menyebabkan disabilitas, maka studi ini ingin meninjau lebih lanjut pengaruh hipertensi terhadap OA. Studi bersifat analitik dan menggunakan desain cross-sectional dengan 126 jumlah pasien RS Royal Taruma selama bulan Januari-Maret 2024. Variabel yang diteliti terdiri dari tekanan darah pasien dan nilai Kellgren-Lawrence pasien. Data dianalisis dengan uji chi square dan disajikan ke bentuk tabel. Studi ini menemukan 78 pasien osteoarthritis genu dan juga mengalami hipertensi, dimana di dalam studi ini tidak ditemukan adanya hubungan antara hipertensi dengan dengan terjadinya osteoarthritis genu (p-value = 0.859; PR = 1,01).
Hubungan self-esteem dengan tingkatan stres pada mahasiswa kedokteran Universitas Tarumanagara angkatan 2020-2022
Authors: Putra Rizki Cahaya , Irawaty Enny
Published: August 2024

Mahasiswa kedokteran dapat mengalami stres yang tinggi dalam menempuh pendidikannya. Kondisi tersebut bila tidak diatasi dengan baik akan berdampak pada kesehatan fisik dan mental. Stres yang terjadi berkaitan dengan self-esteem, yang merupakan keyakinan terhadap dirinya sendiri dalam menghadapi tantangan dan mengatasi tekanan dalam hidup. Studi ini bertujuan menganalisis hubungan self-esteem terhadap tingkatan stres mahasiswa Fakultas Kedokteran Universitas Tarumanagara. Studi analitik ini menggunakan desain potong lintang dan dilakukan di bulan Mei hingga Desember 2022. Sebanyak 305 mahasiswa angkatan 2020-2022 mengisi kuesioner Rosenberg self-esteem scale dan Perceived stress scale 10 dalam bahasa Indonesia. Mayoritas responden memiliki self- esteem sedang (72,4%) dan stres tingkat sedang (70.5%). Uji chi-square menunjukkan self-esteem memiliki hubungan yang signifikan secara statistik dengan tingkatan stres (p-value <0,001). Responden dengan self-esteem rendah cenderung mengalami stres berat dibandingkan self-esteem sedang dan tinggi.
Studi deskriptif pengetahuan, sikap, dan perilaku penggunaan masker pada mahasiswa kedokteran Universitas Tarumanagara
Authors: Lou Michell Veronica , Tirtasari Silviana
Published: August 2024

Semenjak kejadian global emergency akibat pandemi Covid-19, pemakaian masker menjadi kebiasaan adaptasi baru bagi masyarakat yang ditujukan untuk melindungi diri dari kontaminasi virus dan mengurangi penyebaran infeksi. Perilaku ini masih diterapkan di lingkungan Fakultas Kedokteran Universitas Tarumanagara. Studi ini bertujuan untuk mengetahui pengetahuan, sikap dan perilaku pemakaian masker pada mahasiswa kedokteran. Studi deskriptif dilakukan selama bulan Desember 2023 hingga Maret 2024. Studi dirancang menggunakan pendekatan potong lintang. Responden studi berjumlah 154 orang menggunakan teknik quota sampling. Sebesar 96,1% responden memiliki pengetahuan baik, 94,2% memiliki sikap yang positif dan 92,2% memiliki perilaku patuh dalam menggunakan masker untuk mencegah penyebaran virus. Mahasiswa kedokteran Universitas Tarumanagara memahami dengan baik penggunaan masker sebagai salah satu protokol kesehatan.
Potential chemical control for target spot disease of tomato caused by Corynespora cassiicola
Authors:   Department Of Agriculture, MSW Fernando
Published: August 2024

Those fungicides can be recommended for an alternative application for tomato target spot disease control. Maintaining of field sanitation must take place.
The Taking into Charge of the Drug-Addicted Person who has Committed a Crime Subjected to Precautionary Measures by the Judicial Authority the Operational Model of the Multidisciplinary Addiciton Team at the U.O.S.D Department of Adults and Minors Healthcare, Criminal Area Local Health Authority of Salerno: Description of the Report 2022 Multidisciplinary Addiction Team Activities and Comparison with Annual Report of Parliament on the phenomenon of Drug Addiction in Italy
Authors:   UOSD Tutela Salute Adulti E Minori Area Penale - ASL Salerno, Italy
Published: August 2024

Regarding the definition of pathological addiction, the WHO defines it as a mental and sometimes physical condition deriving from the interaction between an organism and a substance, characterized by behavioral responses and other reactions that include addictions without substance, which concern additive behaviors (WHO, 2023).
Phenotypic and Genetic Trends in Growth Traits in a Nucleus Herd of Red Chittagong Cattle
Authors:   Department Of Animal Breeding & Genetics, Bangladesh, AKFH Bhuiyan
Published: August 2024

The aim of this study was to estimate phenotypic and genetic trends in growth of Red Chittagong cattle (RCC), an indigenous breed of Bangladesh.
Effect of Adding Palm Kernel Cake as a Substrate in Sclerotium rolfsii Inoculum
Authors: Fajrona Kadran , Rizal Yose , Mirnawati
Published: August 2024

This research aims to determine the added palm kernel cake (PKC) level in the Sclerotium rolfsii inoculum. This research used an experimental method with a completely randomized design, four treatments, and five replications. The treatments were different substrate compositions, consisting of 100% bran (control), 90% bran + 10% PKC (P1), 85% bran + 15% PKC (P2), and 80% bran + 20% PKC (P3). The variables observed were cellulase and mannanase enzyme activities. The data obtained were analyzed statistically using a completely random design analysis of variance and continued with Duncan's multiple range tests if the treatment influenced the observed variables. The results showed that adding PKC as a substrate in making Sclerotium rolfsii inoculum had a significant effect (P<0.01) on the activity of cellulase and mannanase enzymes. The best cellulase and mannanase enzyme activities were found in the 80% fine bran substrate composition + 20% PKC (P3), namely 16.02 U/mL and 7.81 U/mL.
Development of Machine Learning Techniques for the Multiclass Semantic Segmentation of Underwater Images
Authors:   Department of Computer Science and Engineering (CSE), University College of Engineering, Panruti, India, Anitha D. , Rani C. ,   Department of CSE, Government College of Engineering, Bodinayakkanur, India, Suganya Devi K. ,   Department of CSE, National Institute of Technology Silchar, Assam, India, Valli S.P. ,   Department of CSE, B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, India
Published: August 2024

The Neptune grass (NG) is an endemic plant of the Mediterranean Sea. Successive studies carried out show a significant decrease in their presence in this sea. Concern for the conservation of NG implies being able to monitor its evolution and thus be able to determine if its presence is increasing or decreasing in seabeds. Nowadays, expensive and limited methods are used to carry out this follow-up, which often also involves manual intervention. The work carried out aims to automatically determine the type of seabed from underwater images, performing semantic segmentation using deep neural networks. In this work, a deep neural network has been implemented to carry out a semantic segmentation of images of the seabed, offering improvements with respect to the techniques currently used to obtain this information. The developed neural network allows for distinguishing in the images of the seabed the areas of NG, rock, and sand. The possibility of identifying other elements present, such as dead NG, both the plant itself and its loose leaves scattered on the bottom, has also been explored in this work.
Haemostatic biomaterial based on expired platelets for medical applications
Authors:   Vasile Goldiş Western University of Arad, Faculty of Medicine, Department of Biology and Life Sciences, Arad, Romania, Nistor Valentina ,   Tulcea County Hospital, Tulcea, Romania, Ionita Larisa ,   Romanian Doping Control Laboratory, Bucharest, Romania, Rugina Alexandrina ,   National Institute for Biological Science Research & Development, Bucharest, Romania, Bentia Dan Razvan ,   Sanador Clinical Hospital, Department of Neurosurgery, Bucharest, Romania, Titu Maiorescu University, Faculty of Medicine, Bucharest, Romania, Turcus Violeta ,   Vasile Goldiş Western University of Arad, Faculty of Medicine, Department of Biology and Life Sciences, Arad, Romania, Cotoraci Coralia Adina ,   Vasile Goldiş Western University of Arad, Faculty of Medicine, Department of General Medicine, Arad, Romania, Bratosin Daniela ,   Vasile Goldiş Western University of Arad, Faculty of Medicine, Department of Biology and Life Sciences, Arad, Romania
Published: August 2024

Blood loss has been a concern especially in surgery and bleeding control and a number of haemostatic agents and tissue sealants have been developed and applied in various surgical disciplines. The first steps to stop bleeding due to a vascular lesion, limit blood loss and allow healing are ensured by platelets that play an essential role in forming the primary haemostatic plug. After this, the clot is consolidated by the formation of a fibrin network organized around platelet aggregates. In this study we tested for the treatment of external haemorrhagic lesions a new biomaterial based on expired platelets from blood banks immobilized on a collagen support. These platelets are no longer used for transfusions, are safe (tested for viral and bacterial contamination) and still have local haemostatic activity. Collagen is non-toxic, non-antigenic and promotes cell adhesion. Platelets bind to the collagen support and subsequently form clots through the intrinsic coagulation pathway
Shifts in the nitrogen cycle under different fertilizer management practices
Authors:   Department of Systems Ecology and Sustainability, Faculty of Biology, University of Bucharest, Splaiul Independenței no. 91-95, District 5, Bucharest, Romania, Postal code: 050095, Botez Florina , Postolache Carmen ,   Department of Systems Ecology and Sustainability, Faculty of Biology, University of Bucharest, Splaiul Independenței no. 91-95, District 5, Bucharest, Romania, Postal code: 050095, Domnariu Horia ,   Department of Systems Ecology and Sustainability, Faculty of Biology, University of Bucharest, Splaiul Independenței no. 91-95, District 5, Bucharest, Romania, Postal code: 050095,   Soil Biology Laboratory, National Research and Development Institute for Soil Science, Agrochemistry and Environment – ICPA, Bd. Mărăști, no. 61, Bucharest, Romania, Postal code: 011464, Leonte Alexandra ,   Agricultural Research and Development Station Secuieni Neamț, Str. Principală, no. 377, Com. Secuieni, Neamț County, Romania, Postal code 617415, Dulă Andreea-Gabriela ,   Faculty of Biology, University of Bucharest, Splaiul Independenței no. 91-95, District 5, Bucharest, Romania, Postal code: 050095
Published: August 2024

Human population is dependent on agricultural production, but these activities pose multiple threats to soil health and indirectly to ecological sustainability. Synthesis of fertilizers proved to be a miraculous solution to enhance soil productivity, but this advancement came with many unseen risks. Long-term research stations that have decades long experiments with fertilizers additions are paramount in better understanding long-term impact of fertilizer use. Our study focused on ammonium and nitrate levels found in soils in an experiment of inorganic nitrogen addition than began in 1975. We further directed our attention to soil mineralization potential, nitrate reductase activities and densities of two major microbial functional groups: ammonifiers and denitrifiers. Our data suggests that ammonium has a stronger tendency of soil buildup than nitrate and that increased levels of inorganic nitrogen species also impacted molecular compartments and processes such as mineralization potential, soil microbiota and enzymatic activities. Another result indicates that analysed soils reached a storage limit for phosphorus which threatens to overburden other ecosystems.
Cell adhesion genes expression level in oropharyngeal squamous cell carcinoma and laryngeal squamous cell carcinoma: a preliminary study
Authors:   Institute of Biology of Romanian Academy, 296 Splaiul Independentei, 060031 Bucharest, Romania, Constantin Marian ,   The Research Institute of the University of Bucharest, ICUB, Bucharest, Romania
Published: August 2024

Head and neck cancers (HNCs) are tumors developed in the upper aerodigestive tracts, more than 90% originating in the squamous cells lining the mucosa of the upper airways. There are between 650,000 and 900,000 new cases each year, most of them advanced, resulting in high mortality (five-year survival about 50%). HNCs do not metastasize to distant sites, but often affect local lymph nodes. Their etiology is multifactorial, with smoking, alcohol consumption and HPV infection being the most common. HNCs rapidly enter hypoxia and synthesize angiogenic factors, which contribute to further tumor development and recurrence. Although there is a relatively wide variety of therapeutic strategies, their effectiveness is reduced because of resistance development. Cell adhesion mediated by integrins and the extracellular matrix is an important mechanism of tumor progression. In this study, expression levels of genes involved in cell adhesion were determined in two patients with oropharyngeal squamous cell carcinoma and three patients with laryngeal squamous cell carcinoma. The obtained data showed that there is a differentiation in the expression of genes for collagens (COL15A1, COL18A1, COL4A1, COL4A2 and COL4A3), integrins (ITGA4, ITGAV, ITGB3) and two molecules involved in their interactions (CD44 and MMP2) for the two tumor types, the results obtained need validation on a statistically significant sample.
Analisis Sensori dan Kadar Polifenol Minuman Fungsional Teh Bunga Telang (Clitoria ternatea L) dan Kurma (Phoenix dactylifera L)
Authors: Anwar Khoirul , Khoirunnisaa Tasya
Published: August 2024

Minuman fungsional merupakan minuman yang mengandung unsur-unsur zat gizi atau non zat gizi dan dapat memberikan pengaruh positif terhadap kesehatan tubuh. Polifenol merupakan salah satu komponen minuman fungsional yang memiliki fungsi fisiologis bagi tubuh. Penelitian ini bertujuan untuk mengetahui kadar polifenol pada produk minuman teh bunga telang kurma. Rancangan yang digunakan pada penelitian ini adalah rancangan acak lengkap (RAL) dengan satu faktor dan lima taraf tiga kali ulangan. Faktor perlakuannya yaitu perbandingan teh bunga telang dan sari kurma 70:30, 60:40, 50:50, 40:60, dan 30:70 (v/v).   Bahan yang digunakan untuk pembuatan produk yaitu bunga telang, kurma dan air. Pengujian yang dilakukan pada produk teh bunga telang kurma yaitu uji intensitas warna, uji pH, uji total polifenol dan analisis sensori. Penelitian menggunakan uji statistik ANOVA dengan signifikansi ρ=0,05. Hasil uji kadar polifenol menunjukkan bahwa formulasi teh bunga telang kurma dengan perbandingan 40:60 memiliki kadar polifenol paling tinggi dengan nilai 375,7 mg/kg. Formulasi minuman fungsional teh bunga telang kurma dengan perbandingan 70:30 merupakan formula terbaik dengan nilai L* 5,178, nilai a* -1,688, nilai b* 1,185, nilai pH 7,47, kadar polifenol 203,7 mg/kg, berwarna hijau kebiruan pekat, beraroma telang kuat, dan rasa yang sedikit manis. Formulasi teh bunga telang kurma dengan perbandingan 40:60 memiliki kadar polifenol tertinggi dan memiliki warna hijau kebiruan pekat, beraroma telang kuat, dan rasa yang sedikit manis.
Gambaran Asupan Zat Gizi Makro dan Kebugaran Kardiorespiratori pada Atlet di Pemusatan LatihanTaekwondo
Authors: Listianasari Yanita , Kiftiani Novia
Published: August 2024

Olahraga merupakan aktifitas fisik yang bermanfaat dalam meningkatkan kebugaran. Kebugaran merupakan kemampuan seseorang melakukan aktifitas olahraga tanpa merasakan kelelahan yang berat dan masih mempunyai cadangan tenaga untuk melakukan aktifitas yang lain. Kebugaran kardiorespiratori dipengaruhi oleh asupan zat gizi makro. Penelitian bertujuan untuk mengetahui gambaran asupan zat gizi makro dan kebugaran kardiorespiratori pada atlet Taekwondo. Jenis penelitian observasional dengan analisis deskriptif. Subjek adalah atlet taekwondo yang sedang mengikuti latihan seleksi Pekan Olahraga Pelajar Daerah (POPDA) 2023 di pemusatan latihan taekwondo Kota Tasikmalaya sebanyak 22 orang. Pengumpulan data asupan zat gizi makro menggunakan metode wawancara dengan mengisi form recall selama 2x24 jam. Data kebugaran kardiorespiratori ditentukan dengan pengukuran VO2Maks (tes balke). Hasil penelitian menunjukkan sebagian besar atlet taekwondo memiliki asupan zat gizi makro yang kurang. Asupan protein, lemak, karbohidrat masing-masing sebesar 100%, 82% dan 100%. Kebugaran kardiorespiratori, sebanyak 27% kategori baik, 41% kategori sedang, 14% kategori kurang dan 18% kategori kurang sekali. Diperlukan intervensi dan edukasi gizi untuk meningkatkan kebugaran kardiorespiratori dan performa atlet.
Kontribusi Zat Besi, Seng, dan Vitamin B9 dari Konsumsi Terigu berdasarkan Data Survei Konsumsi Makanan Indonesia (SKMI) 2014
Authors: Martianto Drajat , Atmarita Atmarita , Sardjunani Nina , Kartika Roza , Machfud Elmira Fairuz Khilda
Published: August 2024

Fortifikasi terigu menjadi salah satu program fortifikasi wajib yang diterapkan di Indonesia sebagai bagian dari upaya menanggulangi  anemia gizi besi (AGB). Hingga saat ini evaluasi efektivitas program fortifikasi tepung terigu masih jarang dilakukan. Penelitian ini bertujuan untuk menganalisis kontribusi konsumsi tepung terigu dan pangan olahannya terhadap asupan Fe, Zn, dan vitamin B9 (asam folat) menggunakan data Survei Konsumsi Makanan Indonesia (SKMI) 2014. Desain penelitian yang digunakan adalah desain penelitian cross sectional. Jumlah subjek yang digunakan adalah 145.360 subjek. Hasil penelitian menunjukkan bahwa rata-rata konsumsi tepung terigu penduduk Indonesia sebesar 43,17±72,78 g/kap/hari, jauh di bawah rata-rata konsumsi yang dapat memberikan dampak positif dari program fortifikasi pangan yaitu sebesar 75 g/kap/hari. Hanya 10–30% penduduk Indonesia yang mengonsumsi tepung terigu di atas 75 g/kap/hari. Konsumsi tepung terigu di atas 75 g/kap/hari berkontribusi terhadap asupan Fe sebesar 20,35±11,96% AKG, asupan Zn sebesar 57,52±32,73% AKG dan asupan asam folat sebesar 12,01±6,45% AKG. Monitoring konsumsi  tepung terigu secara rutin diperlukan untuk mengevaluasi dampak fortifikasi terigu dalam penurunan defisiensi gizi mikro di Indonesia.  Survey Konsumsi Makanan Indonesia (SKMI) perlu dilakukan  saat ini untuk memenuhi gap  sembilan tahun dari SKMI 2014 dan dilakukan secara reguler di masa mendatang agar perkembangan konsumsi terigu dan kontribusinya terhadap penanggulangan masalah AGB dapat terus dipantau dan menjadi dasar ilmiah penyempurnaan kebijakan penanggulangan masalah AGB di Indonesia melalui fortifikasi pangan.
Mortalidade fetal e neonatal por sífilis congênita no período de escassez de penicilina
Authors: Rocha Ana Fátima Braga , Araújo Maria Alix Leite , Oliveira Ana Karinne Dantas de , Oliveira Lucas Fernandes de , Félix Aline Sales Nunes
Published: August 2024

Objetivo: Analisar os abortos, natimortos e óbitos neonatais em crianças com sífilis congênita durante o período de escassez de penicilina. Métodos: Estudo transversal realizado nas maternidades públicas de Fortaleza, Ceará. Os dados foram coletados nas fichas de notificação e nos prontuários das gestantes e das crianças. Realizou-se regressão logística múltipla com razão de chances e intervalo de confiança de 95%. Resultados: Foram analisados 548 casos de sífilis congênita, dos quais, 79 (14,4%) resultaram em abortos, natimortos e óbitos neonatais. Encontrou-se maior probabilidade de crianças não vivas em mães com idade ≤ 18 anos (OR: 2,4; IC: 1,20-5,00; p = 0,014), diagnosticadas no parto (OR: 3,7; IC: 1,77-7,71; p < 0,001) e com titulação do VDRL do parto ≥ 1:16 (OR: 9,2; IC: 4,29-19,88; p < 0,001). Conclusões: As mortes por sífilis congênita ocorrem em filhos de mães jovens, não diagnosticadas no pré-natal e com altas titulação do VDRL no parto.
MAPPING OF CHEMICALS MANUFACTURERS FOR DECISION-MAKING MAINTEINANCE FOR THE PURPOSE OF PROTECTING POPULATION FROM NEGATIVE EXPOSURE OF DANGEROUS CHEMICALS
Authors: Цыб С. А. , Скобелев Д. О. , Орлов А. Ю. , Филаткин П. В. , Ляшик А. М.
Published: August 2024

В статье проведен анализ зарубежных географических информационных систем, связанных с производством химической продукции, который позволил выявить наилучшие практики предоставления информации на картах. Представлен способ поддержки регулирующих решений на основе данных карт с распределением предприятий химического комплекса России. Предложено расширение функционала карт путем добавления в них информации о национальной классификации химической продукции и классификации по СГС. Разработаны принципы оптимизации поиска данных на карте, а также их обновления. Предложены варианты отчетов, формирующихся посредством карт.

The article analyzes international geographic information systems related to the manufacturing chemicals and identifies the best practices of mapping information. A method is proposed for supporting regulatory decisions based on these maps involving the distribution of chemical complex enterprises of Russia. The functionality of the maps was expanded by adding information on both the national classification of chemicals and the GHS classification concept. The principles of data search optimization, as well as their updating, were developed. In addition, possible versions of reports which can be formed using these maps were suggested.
PREPARATION OF ION-EXCHANGE MATERIAL USING CHEMICAL MODIFICATION OF POLYPROPYLENE WASTE
Authors: Базунова М. В. , Мустакимов Р. А. , Гимаева Ф. Р.
Published: August 2024

Разработан метод синтеза катионообменного материала на основе отходов вторичного полипропилена (ВПП) путем предварительного окисления ВПП и последующей прививки полиакриловой кислоты (ПАК). При этом статическая обменная емкость (СОЕ) образцов ВПП с привитыми цепями ПАК составила 1,4-2,0 мг-экв/г. В качестве другого способа модификации отходов полипропилена использовали сульфирование немодифицированного ВПП и образцов ВПП, модифицированных предварительным окислением. Установлено, что модифицированные окислением образцы ВПП в большей степени подвергаются сульфированию и имеют более высокие значения СОЕ.

A method for preparing a cation-exchange material based on recycled polypropylene by preliminary oxidation of recycled polypropylene (RPP) and subsequent grafting of polyacrylic acid has been developed. The resulting values of static exchange capacity (SEC) of modified samples with grafted chains varied within the range of 1.4-2.0 meq/g. Additional method for modifying polypropylene waste was suggested, which involved sulphurization of both unmodified RPP samples and RPP samples modified by preliminary oxidation. The pre-oxidized samples were sulfonated to a greater extent and characterized by higher SEC values.
MODERN METHODS OF MATHEMATICAL MODELING OF ENVIRONMENTAL CHEMICAL AND BIOLOGICAL PROCESSES
Authors: Травин С. О.
Published: August 2024

Рассмотрены роль и значение численного эксперимента в исследовании экохимических систем. Разобраны причины, по которым большая часть информации по динамике взаимодействия компонентов природных экосистем не может быть получена путем одних только натурных измерений ( in vitro ), что определяет доминирующую роль математических моделей и проведения численных экспериментов ( in silico ). Cформулированы основные отличия естественных экосистем от химических реакций в лабораторных и в промышленных условиях. Особое внимание уделено возможностям самоорганизации материи и установлению принципиально нестационарных циклических колебательных режимов в открытых экологических системах.

Abstract - The role and significance of a numerical experiment in studying ecochemical systems are considered. The reasons are analyzed why most of the information on dynamics of interactions of natural ecosystem components cannot be obtained only by in situ measurements ( in vitro ), which determines the dominant role of mathematical models and conducting numerical experiments ( in silico ). The main differences between natural ecosystems and chemical reactions in laboratory and industrial conditions are formulated. The particular focus is placed upon the possibility of self-organization of matter and establishing truly non-stationary cyclic oscillatory regimes in open ecological systems.
SAFE MANUFACTURING OF ENERGETIC COMPOSITES BASED ON NANODISPERSE COMPONENTS
Authors: Павловец Г. Я. , Чуйко С. В. , Мелешко В. Ю. , Златкина В. Л. , Куликова Т. Л. , Михайловская Л. А.
Published: August 2024

Разработана безопасная технология получения пирофорных ультра- и нанодисперсных металлических порошков, применяемых в качестве модификаторов энергоемких композитов для систем специального назначения. Способ основан на электродуговой плазменной переконденсации металлических порошков по непрерывной технологической схеме. Безопасность обеспечивается замкнутостью технологического цикла, что исключает контакт пирофорных и высокотоксичных нанопорошков с внешней средой. Проведены исследования кинетических параметров самовозгорания металлических горючих связующих, что позволило выдать рекомендации по безопасному обращению с реакционноактивными нанокомпонентами.

Abstract - A safe technology has been developed for manufacturing pyrophoric ultra- and nanodispersed metal powders, which are applied as modifiers for energetic composites in special-purpose systems. The method is based on electric-arc plasma recondensation of metal powders according to a continuous process scheme. Safety is ensured by a closed circuit technological cycle, which eliminates contacting pyrophoric and highly toxic nanopowders with the external environment. The kinetic parameters of spontaneous combustion of metallic combustible binders have been studied, which made it possible to give recommendations on safe handling of reactive nanocomponents.
TRANSFORMATION OF TOXIC WASTEWATER SEDIMENTS INTO ENVIRONMENTALLY FRIENDLY FERTILIZERS
Authors: Мерзлая Г. Е. , Афанасьев Р. А.
Published: August 2024

Представлены результаты исследований по трансформации осадков промышленно-бытовых сточных вод г. Москвы в новые экологически безопасные удобрения. Проведено сравнительное изучение эффективности длительного применения компостов, изготовленных из указанных осадков и древесных отходов, и традиционного органического удобрения - навоза в полевом опыте в период с 2000 по 2017 гг. при различных дозах. Применение компостов обеспечивало прибавки урожая многолетних трав по отношению к контролю (без удобрений), составившие в среднем за годы исследований от 13 до 60% в зависимости от дозы. Установлено, что экологически безопасная доза новых удобрений на основе осадков сточных вод под многолетние злаковые травы без риска загрязнения почвы и растительной продукции тяжелыми металлами составляет 10 т/га сухой массы.

Abstract - The results of research on transforming Moscow city industrial-municipal wastewater sediments into novel environmentally friendly fertilizers are presented. A comparative study examining efficiency of long-term use of the composts prepared by mixing sewage sludge with wood shavings was performed in field experiment between 2000 and 2017 at two levels of doses in comparison to the results for the traditional organic fertilizer - barnyard manure. The use of composts resulted in an increase of crop yield for perennial grasses with an average increment in the range of 13 to 60% relative to blank experiment over the years of research, in dose-dependent manner. An environmentally safe dose of applying new fertilizer based on sewage sludge was found to be 10 t/ha of dry weight for perennial grasses, the dose provided avoiding risk of soil and plants’ contamination with heavy metals.
APPLYING POTASSIUM DICHROMATE AS REFERENCE MATERIAL IN TOXICOLOGICAL ANALYSIS OF INDUSTRIAL WASTE BY BIOASSAY METHODS USING EARTHWORM AS TEST OBJECT
Authors: Борис О. А. , Петрова С. Ю. , Гомолко Т. Н. , Шевцова С. Н.
Published: August 2024

В статье представлены результаты тестирования дихромата калия как эталонного вещества в тест-модели Eisenia foetida , применяемой для оценки экотоксичности отходов производства. Установлен диапазон реагирования тест-организма в остром эксперименте LC 0,272 - 0,297 г/кг дихромата калия при внутрилабораторном тестировании.

Abstract - The article presents the results of bioassay analysis of potassium dichromate as a reference chemical in Eisenia foetida test model applied for ecotoxicity assessment of industrial wastes. Test organism response range was determined to be as follows LC = 0.272-0.297 g/kg potassium dichromate under acute experimental conditions within intralaboratory testing.
METHODOLOGICAL APPROACH TO DETERMINE EFFECTIVE WAYS OF ACTUAL USING RESULTS OF SCIENTIFIC AND TECHNICAL PROGRAMS
Authors: Проничкин С. В. , Тихонов И. П. , Эпинатьев И. Д. , Рощин А. В.
Published: August 2024

Аннотация - Проведен анализ существующих подходов к определению перспективных направлений использования результатов НТП. Выявлены недостатки существующих процедур планирования внедрения научно-технических результатов. Разработаны научно-методические подходы к системному анализу проблем практического использования результатов НТП. Выделены ключевые аспекты практического использования результатов научных исследований и разработок в области химической и биологической безопасности. Обоснована необходимость разработки решающего правила, устанавливающего зависимость общего показателя важности внедрения от оценок по различным критериям. Полученные результаты представляют интерес как для анализа наиболее существенных аспектов внедрения, так и определения перспектив практического использования результатов НТП.

Abstract - A series of existing approaches to determine promising trends for using results of scientific and technical programs has been analyzed. A number of drawbacks of the existing procedures for planning implementation of scientific and technical results are identified. A scientific and methodological approach to system analysis of the problems associated with practical use of results of scientific and technical programs are developed. The key aspects of practical using outcomes of research and development works related to chemical and biological safety issues are highlighted. The necessity of developing a decision rule is substantiated - the rule that establishes a dependence between an overall indicator reflecting the importance of implementation, and assessment values in accordance with different criteria. The presented results can be of interest both for analyzing the most significant aspects of implementation, and for determining the prospects for practical using results of scientific and technical programs.
STUDY OF EFFECTIVENESS OF CHEMICAL TREATMENT OF SEWAGE SLUDGE
Authors: Дремичева Е. С. , Гаврилов А. С.
Published: August 2024

Приведены результаты экспериментальных исследований кинетики осаждения избыточного активного ила, который составляет основную часть осадков сточных вод, в большом объеме образующихся после очистки воды на городских станциях биологической очистки. Образцы активного ила подвергали осаждению в присутствии химических реагентов с целью коагуляции и флокуляции твердых частиц, которые необходимо отделить от водной фазы. Для повышения эффективности разделения использовали в качестве коагулянтов сульфаты железа и алюминия, хлорид магния, а в качестве флокулянтов - крахмал и праестол. Продемонстрировано, что среди коагулянтов, способствующих разрушению гидратной оболочки избыточного активного ила, наилучший результат показал сульфат железа, в то время как применение хлорида магния было неэффективно. Установлена доза сернокислого железа, необходимая для коагуляции осадков. Полученные результаты можно использовать при рассмотрении путей дальнейшей переработки, размещения и утилизации осадков сточных вод.

The paper presents results of experimental studies on kinetics of deposition of surplus activated sludge, which constitutes the main part of sewage sludge produced in bulk at municipal biological water treatment stations. Samples of activated sludge have been deposited in the presence of chemical reagents aiming at coagulating and flocculating solid particles followed by their separation from the aqueous phase. With a focus on increasing separation efficiency, iron(II) and aluminum sulfates along with magnesium chloride have been applied as coagulants, and starch and praestol - as flocculants. It has been demonstrated that among the coagulants that contribute to the destruction of the hydrated shell of the surplus activated sludge, ferrous sulfate shows the best result, while the use of magnesium chloride is ineffective. The effective dose of ferrous sulfate required for coagulating the sediments has been determined. The data obtained can be used when considering ways for further processing, disposal and utilization of the sewage sludge.
ASSESSMENT OF METHODS FOR CHEMICAL ANALYSIS OF WINTER ATMOSPHERIC AIR WHEN APPLYING DEICING MATERIALS
Authors: Антропова Н. С. , Водянова М. А. , Сбитнев А. В. , Абрамов Е. Г. , Середа А. Е.
Published: August 2024

В статье обоснована актуальность подбора оптимального метода химического анализа атмосферного воздуха с целью идентификации и количественного определения компонентов солей, входящих в состав противогололедных материалов (ПГМ), применяемых в настоящее время в г. Москве в зимний период. Проведена оценка химического состава различных видов ПГМ материалов и выбраны индикаторные ионы для анализа. Приведены результаты собственных экспериментальных исследований по анализу проб атмосферного воздуха, отобранных в зимний период в г. Москве, с использованием различных поглотительных устройств и методов химического анализа (ионная хроматография, масс-спектрометрия с индуктивно-связанной плазмой). Выявлены ограничения использования современных аспираторов в условиях отрицательных температур в зимний период. Показано, что уровень содержания ионов натрия и хлора в атмосферном воздухе г. Москвы значительно превышает соответствующие фоновые показатели природного происхождения. Подчеркнута необходимость продолжения исследований в данном направлении в целях совершенствования подхода к выбору оптимального метода химического анализа и способов отбора проб, что имеет важное значение с точки зрения снижения негативного воздействия ПГМ на окружающую среду и здоровье населения.

The paper outlines the relevance of choosing an optimal method for atmospheric air chemical analysis, capable to provide an appropriate identification and quantification of salts ingredients that make up the major part of deicing materials (DMs), currently used in winter period in Moscow. Chemical composition evaluation of various types of DMs has resulted in selection of indicator ions for subsequent analytical procedures. The authors’ own experimental data on analyzing atmospheric air samples collected in winter in Moscow using various absorption devices and chemical analytical methods (i.e. ion chromatography, inductively coupled plasma mass spectrometry) are presented. A series of limitations of applying modern aspirators under conditions of sub-zero winter temperatures are revealed. Sodium and chlorine ion levels in the atmospheric air of Moscow are found to be significantly higher than the corresponding background level of natural origin. An urgent necessity to continue research in this area has been emphasized with the focus on improving the approach for selection of the optimal method for chemical analysis and sampling procedures, which is highly important in terms of reducing a negative impact of DMs on public health and environment.
IMPLEMENTATION OF POLLUTANT RELEASE AND TRANSFER REGISTER IN THE REPUBLIC OF KAZAKHSTAN
Authors: Мустафина В. В. , Анисимова Н. М. , Душкина Ю. Н.
Published: August 2024

Описан процесс создания и внедрения в Казахстане регистра выбросов и переноса загрязнителей (РВПЗ) как базы данных по выбросам и переносу потенциально опасных химических веществ. Правовой основой для его создания является Протокол о регистрах выбросов и переноса загрязнителей, принятый к Орхусской Конвенции в 2003 г., согласно которому присоединившиеся страны должны разработать и внедрить национальный регистр в легкодоступном для общества формате. Протокол охватывает 64 вида деятельности, сгруппированных по отраслям, и 86 загрязняющих веществ и групп веществ. Проанализированы составляющие государственного регистра выбросов и переноса загрязнителей Республики Казахстан, этапы его внедрения и подготовительная работа, проведенная для успешного функционирования системы РВПЗ. Особое внимание уделено перечню загрязняющих веществ, которые необходимо включать в отчетность РВПЗ предприятий-природопользователей. РВПЗ планируется разместить на интернет-портале для свободного доступа всем заинтересованным лицам.

The paper describes specific aspects concerning creation and implementation of Pollutant Release and Transfer Register (PRTR) in the Republic of Kazakhstan, RPTR is known as a database on emissions and transfer of potentially hazardous chemicals. The legal basis for its creation is provided by the Protocol on Pollutant Release and Transfer Registers adopted by the Aarhus Convention in 2003, which obliges signatory countries to develop and implement a national register in an easily accessible format. The protocol covers 64 kinds of causing pollution sources of activities grouped by branches of industry and 86 pollutants and groups of hazardous substances. The integral parts of the State Pollutant Release and Transfer Register of the Republic of Kazakhstan are analyzed, the steps required for its implementation and the preliminary work carried out for successful operation of the PRTR system are highlighted. Particular attention is paid to the list of pollutants that should be included into PRTR reports of natural resource users of the country. The PRTR is going to be placed on the Internet portal and will be available on free for all interested parties.
LOCALIZATION OF IONIZING RADIATION BY NANOSCALE CAPILLARY CERAMIC MATRIX
Authors: Муратова Е. Н. , Шемухин А. А.
Published: August 2024

Локализация ионизирующего излучения имеет важное значение при его воздействии на живые системы, а также при его применении в различных отраслях промышленности и в научных исследованиях и разработках. Исследовано прохождение и рассеяние ускоренных ионов гелия при облучении диэлектрических керамических матриц на основе нанопористого оксида алюминия. В качестве источника пучка ионов гелия использовался ускорительный комплекс МГУ HVEE AN-2500 с энергией 1,2-2 МэВ. Взаимодействие ионов с матрицей и его влияние на изменение структуры пор изучали методом резерфордовского обратного рассеяния. Продемонстрирована возможность эффективной и управляемой локализации ионизирующего излучения с помощью указанных матриц, содержащих наноразмерные капиллярные поры, что открывает широкую перспективу использования полученных результатов в различных областях.

Localization of ionizing radiation is of vital importance in the context of its influence on living systems, as well as its use in a variety of industrial fields and in research and development activities. The transmission and scattering of accelerated helium ions irradiated through dielectric ceramic matrices based on nanoporous aluminum oxide were studied. An accelerator complex HVEE AN-2500 with an energy of 1.2-2 MeV developed in the Moscow State University was used as a helium ion beam source. The interaction of helium ions with the matrix and its effect on changes in matrix pore structure was examined by the Rutherford backscattering method. A possibility of effective and controlled localization of ionizing radiation using the indicated matrices with nanosized capillary pores was demonstrated, which could open up a broad prospect for applying the obtained results in various fields.
AGENT-ORIENTED MODELING AS A TOOL FOR PREDICTING HUMAN MUTATIONS IN RESPONSE TO EXTERNAL ENVIRONMENT CHANGES
Authors: Бурилина М. А.
Published: August 2024

В работе предлагается подход моделирования, помогающий воссоздавать для исследований реальную среду, где агенты взаимодействуют между собой. Такой тип моделей называется агентным моделированием, показавшим за последний десяток лет огромный спрос у ученых различных направлений. Рассмотрено применение данного метода в различных областях науки, в том числе системной биологии, химической и экологической безопасности. Представлена разработанная автором модель, описывающая распространение генома человека, модифицированного в соответствии с инновационной технологией редактирования генома CRISPR/Cas9.

A modeling approach is proposed that helps to recreate a real-life research environment where agents interact with each other. This type of simulation is called an agent-oriented modeling, which has shown an increasing demand from researchers in various fields over the past ten years. The application of this approach in particular science areas, including systems biology, chemical and environmental safety, is considered. A model developed by the author, describing the distribution of human genome modified by means of the innovative CRISPR/Cas9 genome editing technology is presented.