bluuebunny/crossref_metadata_2025 huggingface dataset:
Shock detection and design enhancement for pneumatic control valve
Authors: Elmayyah Wael
Published: July 2024

The existence of shockwaves in pneumatic valves can greatly affect their efficiency and cause damage to important parts. This study focuses on the examination of a cost-effective pneumatic directional control valve with the aim of augmenting its output mass flow rate. Emphasis is placed on scrutinizing and modifying the critical flow area to facilitate increased flow rates under specific upstream pressures while eliminating the formation of shockwaves. To achieve these objectives, numerical simulations are harnessed to accurately capture the onset of shockwave formation and elucidate the associated conditions, allowing optimizing valve's capacity without introducing the risk of shockwave occurrence. The modified valve design demonstrated the capability to eliminate shockwave formation within the valve while concurrently increasing the mass flow rate by up to 70% within the same range of inlet pressures. This novel approach holds substantial promise for enhancing system response and represents a significant contribution to the field of pneumatic control valve design.
Integration of behavior models' accuracy in design decisions using AHP, FMEA and physical prototyping
Authors: El Amine , Hmina K. , Sallaou M.
Published: July 2024

The embodiment design phase consists of rough selections/arrangements of materials, technologies used, dimensions, and main components. During this phase, many behavior models are used to verify the achievement of design objectives. The lack of confidence in these models due to the assumptions adopted causes designers to realize many prototypes during product development, causing time/cost-consuming loops of the "trial-and-error" procedure. We propose a decision model that integrates the accuracy of behavior models into decision-making. The objective is to limit the use of physical prototypes and improve the quality of decision-making. Each design alternative is evaluated using two indicators. The first is a desirability indicator that measures the level of completion of design objectives. The second indicator assesses the risk associated with the accuracy of behavior models using AHP, FMEA, and experimental tests on a prototype. The proposed approach was applied to the development of a solar collector.
Accuracy of analytical approximation formula for bond prices in a three-factor convergence model of interest rates
Authors: Jánoši Michal , Stehlíková Beáta
Published: July 2024

We consider a convergence model of interest rates, in which the behaviour of the domestic instantaneous interest rate (so called short rate) depends on the short rate in a monetary union that the country is going to join. The short rate in the monetary union is modelled by a two-factor model, which leads to a three-factor model for the domestic rate. In this setting, term structures of interest rates are computed from bond prices, which are obtained as solutions to a parabolic partial differential equation. A closed-form solution is known only in special cases. An analytical approximation formula for the domestic bond prices has been proposed, with the error estimate only for certain parameter values, when the solution has a separable form. In this paper, we derive the order of accuracy in the general case. We also study a special case, which makes it possible to model the phenomenon of negative interest rates that were observed in the previous years. It turns out that it leads to a higher accuracy than the one achieved in the general case without restriction on parameters.
Operator upper bounds for Davis-Choi-Jensen's difference in Hilbert spaces
Authors: Dragomir Silvestru
Published: July 2024

In this paper we obtain several operator inequalities providing upper bounds for the Davis-Choi-Jensen's Difference Ph (f (A)) - f (Ph (A)) for any convex function f : I → R, any selfadjoint operator A in H with the spectrum Sp (A) ⊂ I and any linear, positive and normalized map Ph : B (H) → B (K), where H and K are Hilbert spaces. Some examples of convex and operator convex functions are also provided.
The concept of the "eternal left" by Ernst Nolte
Authors: Dostanić Dušan
Published: July 2024

Resume In the article, the author tries to present Ernst Nolte's understanding of the "eternal left". The author starts with the question of whether the concepts of right and left are still usable today. In order to offer an answer to this question, the paper points to the long-established transepochal self-identity of the left. To explain this identity, the author points to the notion of the "eternal left" which was developed within Ernst Nolte's philosophy of history, where the "eternal left" is seen as one of the "historical constants". The text then enumerates the key characteristics of the "eternal left" as understood by Nolte, that is, points out its origin and consequences. Since the fall of communism cannot be considered the final defeat of the "eternal left", the author tries to show that Nolte's understanding is still relevant in our time and that his description of the "eternal left" has not lost its importance.
Treaty on Prohibition of Nuclear Weapons: Position, implementation and significance
Authors: Arsić Katarina
Published: July 2024

Although there was a opinion that the Treaty on Prohibition of Nuclear Weapons would represent the end of the era of the development of this type of weapon and the threat of nuclear war, this did not happen, having in mind that no country possessing a nuclear arsenal have acceded to the Treaty yet. The paper analyzes the main aspects of this document, its advantages and disadvantages. Additionally, using a comparative method, we will try to determine the relationship of this treaty with other sources of international public law, primarily treaties that may refer to the use of nuclear weapons, but also customs. Special attention is given to the influence of the Advisory Opinion of the International Court of Justice on the legality of the use of nuclear weapons on the attitudes of states on the permissibility of the use of nuclear weapons. At the end, taking into account the current political and social circumstances in international relations and the opinions of international law theorists, we will try to answer the question why this treaty is still important, because nuclear weapons are the tool may be played by nuclear powers, especially in terms of their potential use in the case of self-defence.
US foreign policy in the 21st century and the question of morality in international relations in theory and practice
Authors: Nikolić Danijela , Rašković-Talović Violeta
Published: July 2024

The development of modern and powerful countries is conditioned by the need to possess and control significant amounts of resources. Out of the desire to increase the real power and influence of the global political plan, the great powers create conflicts, frictions and wars, neglecting the moral dimension and the negative consequences of the decisions taken. This paper aims to elaborate on the role of the great powers in triggering energy wars, focusing on the disguise of NEO-imperial ambitions under the guise of fighting for human rights and democracy. With this in mind, the paper is divided into two parts. In the first part, the authors examine the phenomenon of war as well as the moral justification of wars by analyzing the ethical perspectives of war. In the second part, the authors' attempts to explain how power and politics are put at the service of the ideological justification of decisions. The method of content analysis, the analysis of contemporary methods, and case studies are used as instruments to prove the hypotheses put forward. The author's intention is to prove that energy and economic wars, which imply economic and political sanctions, are set in motion with the aim of destroying the economic potential of opposing economies and states that oppose certain geopolitical interests of the great powers. They turn the war for resources into a powerful weapon to assert their interests.
Tăng cường đánh giá chính sách công ở Việt Nam
Authors: Lê Văn Hòa
Published: July 2024

bdbd
Về thể chế pháp lý Nhân dân giám sát việc thực hiện quyền lực nhà nước của chính quyền địa phương
Authors: Âu Thị Tâm Minh
Published: July 2024

fa
Hình thức xử lý hậu quả của việc đình chỉ giải quyết vụ án dân sự có áp dụng biện pháp khẩn cấp tạm thời
Authors: Nguyễn Thị Thúy Hằng  , Nguyễn Lương Sỹ
Published: July 2024

rgG
An toàn, bảo mật thông tin trong chuyển đổi số
Authors: Lê Thị Thu Thủy
Published: July 2024

sdvs
DAMPAK PEMBOIKOTAN PRODUK YANG BERAFILIASI ISRAIL PADA KINERJA KEUANGAN YANG TERDAFTAR DI BEI (TAHUN 2023)
Authors: Fadillah Mutiara , Andi Jam’an  , Muchriana Muchran
Published: July 2024

Penelitian ini bertujuan untuk mengetahui kinerja keuangan perusahaan yang berafiliasi Israel yang terboikot di Indonesia tahun 2023. Penelitian ini merupakan jenis penelitian kuantitatif. Teknik penganmbilan sampel dilakukan dengan menggunakan teknik purposive sampling. Sehingga diperoleh sebanyak 7 perusahaan terboikot yang terdaftar di Bursa Efek Indonesia tahun 2023. Teknik pengumpulan data yang digunakan adalah dokumentasi. Teknik analisis data yaitu rasio lancar (Current ratio), Return on Asset, Return on Equity, Debt to Equity ratio dengan pengolahan data. Hasil penelitian menunjukkan bahwa Analisis current ratio perusahaan sebelum dan setelah terboikot rata-rata current ratio perusahaan menurun, hal ini disebabkan karena piutang usaha menurun, dan piutang lain-lain. Analisis return on asset perusahaan sebelum dan setelah terboikot rata-rata current ratio perusahaan meningkat, hal ini disebabkan karena laba bersih meningkat dibandingkan total aset. Analisis return on equity perusahaan sebelum dan setelah terboikot rata-rata current ratio perusahaan meningkat, hal ini disebabkan karena karena beban yang diperoleh perusahaan tidak memperhitungkan modal yang bekerja dalam perusahaan. Analisis debt to equity ratio perusahaan sebelum dan setelah terboikot rata-rata current ratio perusahaan meningkat, hal ini disebabkan karena perusahaan tidak cermat dalam pengambilan modal produksi dan proses pemasaran sehiingga modal tidak tinggi.
 
Kata kunci: Kinerja keuangan, Current Ratio, Return on Asset, Return on Equity, Debt to Equity Ratio
LITERATURE REVIEW:PENGARUH CORPORATE SOCIAL RESPONSIBILITY TERHADAP NILAI PERUSAHAAN PADA PERUSAHAAN PERTAMBANGAN
Authors: Debi Debi Septiani , Dwi Dwi Anugraini Saputri , Putri Putri  Wahyuni , Anggun Anggun Dea Anggraini
Published: July 2024

Nilai perusahaan yang tinggi dapat meningkatkan kesejahteraan para pemegang saham. Corporate sosial Responsibility (CSR), merupakan pertanggungjawaban secara sosial yang merujuk pada kewajiban sebuah organisasi atau perusahaan untuk melindungi dan memberi kontribusi kepada masyarakat sekitarnya. Tujuan studi ini adalah untuk mengidentifikasi dan menganalisis dampak praktik CSR terhadap nilai perusahaan dalam industri pertambangan, serta untuk mengeksplorasi apakah terdapat korelasi antara praktik CSR yang efektif  yang baik di perusahaan-perusahaan tersebut. Metode yang digunakan dalam penelitian ini adalah systematic literature review (SLR) dengan cara mengumpulkan literature review yang di peroleh dari google scholer dari tahung 2016-2024. Hasil penelitian menunjukkan bahwa nilai perusahaan tidak dipengaruhi oleh penerapan CSR  perusahaan, karena perusahaan masih berfokus pada pencapaian upaya menghasilkan keuntungan secara ekonomi, namun terdapat pula penelitian yang menyimpulkan bahwa CSR memiliki pengaruh yang signifikan terhadap nilai perusahaan pertambangan.
SYSTEMATIC LITERATURE REVIEW: PENGARUH KINERJA LINGKUNGAN, LEVERANGE, LIKUIDITAS, DAN PROFITABILITAS TERHADAP PENGUNGKAPAN CSR DI PERTAMBANGAN
Authors: Lestari Fuji , Nedia Nedia , Anggraini Ponisa
Published: July 2024

Penelitian ini bertujuan untuk menguji Pengaruh Kinerja Lingkungan, Leverage, Likuiditas, dan Profitabilitas terhadap Pengungkapan Corporate Social Responsibility. Metode penelitian ini menggunakan systematic literature review yang diperoleh dari google scholer pada tahun 2018-2023. Riset yang relevan berfungsi untuk memperkuat teori dan fenomena hubungan atau pengaruh antar variable. Artikel ini mereview Faktor-faktor yang mempengaruhi Pengungkapan Corporate Social Responsibility, yaitu: Kinerja lingkungan, leverage, likuiditas, dan profitabilitas. Tujuan penulisan artikel ini adalah untuk mengetahui pengaruh kinerja lingkungan, leverage, likuiditas, dan profitabilitas terhadap Pengungkapan Corporate Social Responsibility. Hasil artikel literature review ini adalah: 1) kinerja lingkungan berpengaruh terhadap Pengungkapan Corporate Social Responsibility; 2) leverage berpengaruh terhadap Pengungkapan Corporate Social Responsibility; dan 3) Likuiditas berpengaruh terhadap Pengungkapan Corporate Social Responsibility;4) profitabilitas berpengaruh terhadap pengungkapan Corporate Social Responsibility.
PENGARUH KINERJA KEUANGAN, KINERJA LINGKUNGAN, DAN PERTUMBUHAN PERUSAHAAN TERHADAP NILAI PERUSAHAAN SEKTOR TAMBANG TAHUN 2018-2022
Authors: Alfain Faza Zakiyya Muhammad , Basuki Toto Rahmanto
Published: July 2024

Penelitian ini bertujuan untuk mengetahui apakah terdapat pengaruh antara kinerja keuangan, kinerja lingkungan, dan pertumbuhan perusahaan terhadap nilai perusahaan pada perusahaan tambang yang terdaftar di Bursa Efek Indonesia (BEI) selama periode 2018-2022. Penelitian ini dilakukan karena berbagai aktivitas yang dilakukan perusahaan untuk mencapai tujuan perusahaan diduga akan mempengaruhi nilai perusahaan tersebut. Selain itu, perusahaan juga tidak boleh lupa akan pentingnya menjaga lingkungan, yang akan dinilai oleh Program Penilaian Peringkat Kinerja Perusahaan dalam Pengelolaan Lingkungan Hidup (PROPER). Penelitian ini menggunakan metode kuantitatif dan penelitian kepustakaan dengan menggunakan regresi linear berganda. Penelitian ini telah memenuhi uji asumsi klasik, uji kelayakan model, dan uji hipotesis. Populasi penelitian ini terdiri dari 25 perusahaan sektor tambang. Sampel terdiri dari 9 perusahaan tambang yang dipilih menggunakan teknik purposive sampling. Hasil penelitian menunjukkan kinerja keuangan berpengaruh signifikan terhadap nilai perusahaan. Sebaliknya, kinerja lingkungan tidak berpengaruh signifikan terhadap nilai perusahaan. Pertumbuhan perusahaan juga berpengaruh signifikan terhadap nilai perusahaan.  Kinerja lingkungan tidak berpengaruh signifikan terhadap nilai perusahaan, menjaga lingkungan tetap merupakan aspek penting yang perlu diperhatikan oleh perusahaan. Oleh karena itu, perusahaan tambang disarankan untuk terus meningkatkan kinerja keuangan dan memperhatikan pertumbuhan perusahaan guna meningkatkan nilai perusahaan.
Kata Sandi : Kinerja Keuangan, Kinerja Lingkungan, Pertumbuhan Perusahaan, Nilai Perusahaan
PENGARUH PROFITABILITAS, PERTUMBUHAN PENJUALAN, DAN HARGA TRANSFER TERHADAP PENGHINDARAN PAJAK PADA PERUSAHAAN SEKTOR PERTAMBANGAN DI BEI
Authors: Sarihot Purba  , Putri Devi Ayu
Published: July 2024

Tujuan penelitian ini adalah untuk menganilisis pengaruh ukuran profitabilitas, pertumbuhan penjualan, dan harga tranfser terhadap penghindaran pajak. Variabel independen yang digunakan adalah profitabilitas, pertumbuhan penjualan dan harga transfer. Variabel dependen yang digunakan adalah penghindaran pajak. Populasi yang digunakan dalam penelitian ini adalah perusahaan sektor pertambangan yang terdaftar di Bursa Efek Indonesia (BEI) pada periode 2018-2020. Metode penentuan sampel yang digunakan adalah metode purposive sampling dengan sampel sebanyak 12 perusahaan selama periode pengamatan yaitu 3 tahun bertururt-turut sehingga total sampel dalam penelitian ini berjumlah 36 sampel. Metode analisis penelitian ini menggunakan analisi regresi linear berganda. Hasil penelitian ini menunjukkan bahwa profitabilitas, pertumbuhan penjualan dan harga transfer berpangaruh posistif dan signifikan terhadap penghindaran pajak.
Kata Kunci: Profitabilitas, Pertumbuhan Penjualan, Harga Transfer, Penghindaran Pajak
PENERAPAN STANDAR AKUNTANSI PEMERINTAH BERBASIS AKRUAL PADA LAPORAN KEUANGAN BADAN PERENCANAAN PEMBANGUNAN DAERAH KEBUPATEN BENGKALIS
Authors: Puji Afriyeni  , Siti Zuliyana  , Siska Asrina  , Syaherwandi
Published: July 2024

Penelitian ini bertujuan membahas tentang Penerapan Standar Akuntansi Pemerintahan Pada Laporan Keuangan Bappeda Kabupaten Bengkalis. Standar Akuntansi Pemerintah dirancang untuk menciptakan standar yang konsisten dalam penyajian informasi keuangan pemerintah. Dalam Konteks Pemerintahan, laporan keuangan juga berperan penting sebagai alat untuk menjamin akuntabilitas pengelolaan keuangan pemerintah kepada publik dan pemangku kepentingan lainnya.  Metode penelitian menggunakan pendekatan kualitatif dengan Jenis Penelitian Lapangan. Sumber data yang digunakan yaitu data yang diperoleh melalui observasi dan wawancara dengan Sub Bagian Keuangan dan Perlengkapan Bappeda. Hasil penelitian menunjukkan bahwa Laporan Keuangan yang disusun oleh Bappeda Kabupaten Bengkalis sudah menerapkan StandarAkuntansi Pemerintah berbasis akrual. Namun, ada beberapa transaksi yang masih dilakukan dengan berbasis kas. Sebagai SKPD, Bappeda bertanggung jawab menyampaikan laporan keuangan yang terdiri dari 5 komponen laporan keuangan untuk disampaikan kepada Bendahara Umum Daerah.
Kata Kunci: Standar Akuntansi Pemerintah Berbasis Akrual, Laporan Keuangan, Penerapan Standar Akuntansi Pemerintah
Access to Secondary School Education among Girls from Pastoral Communities: A case of the Barbaig in Hanang District, Manyara Region of Tanzania
Authors: Senga Fausta , DEDE KWALU , GILLO IMMACULATE
Published: July 2024

Access to education for girls in many societies faces significant challenges, often leading to girls being viewed as inferior to boys. However, little is known about the unique challenges facing girls from pastoral societies and their access to schooling. Therefore, this paper sheds light on girls' access to secondary school education in the Barbaig pastoral community in the Hanang District, Manyara Region of Tanzania. Specifically, it examines the challenges girls face in accessing secondary education in their area. The study uses a cross-sectional research design and involved 210 girls from Dirma, Chief Gejaru, and Mwahu secondary schools. Proportional sampling and simple random sampling techniques were used to obtain respondents for this study. Data were collected through interviews, focus group discussions, and documentary reviews. Qualitative and quantitative approaches were used in data analysis. The results revealed that a shortage of girls’ facilities and services in schools, families' low socio-economic status, and harmful gender norms, traditions, and practices were among the challenges. Other challenges include early pregnancies and early marriage, parents’ desire for wealth, nomadic lifestyle, large family size, and long distance from home to school. It is recommended that the Education Department in Hanang District implement educational policies that ensure students in every school have sufficient resources. Furthermore, community leaders should insist on the importance of girls’ education. This will only be possible if local authorities actively collaborate with relevant stakeholders to solve the educational challenges facing the girls from the Barbaig tribe.
PENINGKATAN KETERAMPILAN DAN ESTETIKA DALAM MATA KULIAH NIRMANA TRIMATRA
Authors: Karsana I Putu , Putrayasa I Nyoman , Sujana I Made
Published: July 2024

Penelitian ini bertujuan untuk meningkatkan keterampilan dan estetika mahasiswa dalam mata kuliah Nirmana Trimatra. Nirmana Trimatra adalah salah satu mata kuliah dasar dalam program studi seni rupa yang fokus pada eksplorasi bentuk tiga dimensi. Metode penelitian yang digunakan adalah penelitian tindakan kelas (PTK) dengan model siklus yang terdiri dari perencanaan, pelaksanaan, observasi, dan refleksi. Subjek penelitian adalah mahasiswa semester 2 program studi seni rupa di Universitas PGRI Mahadewa Indonesia. Instrumen penelitian meliputi lembar rancangan  dan dokumentasi karya mahasiswa. Hasil penelitian menunjukkan bahwa penerapan metode pembelajaran berbasis proyek dan penggunaan media digital mampu meningkatkan keterampilan dan estetika karya mahasiswa secara signifikan. Mahasiswa menjadi lebih kreatif dalam menghasilkan karya dengan berbagai macam bahan dan teknik, serta lebih peka terhadap aspek estetika seperti komposisi, proporsi, dan harmoni warna.
Preface
Authors: Editorial Article
Published: July 2024

.
Diagnosis of The State and Changes in The Ecosystem of Lake Onego and Watershed Based on The Information-Analytical System
Authors: Filatov N. N. , Savchuk O. P. , Baklagin V. N. , Galakhina N. E. , Zobkov M. B. , Isaev A. V. , Kondratyev S. A. , Kalinkina N. M. , Novikova I. S. , Rasulova A. M. , Shmakova M. V.
Published: July 2024

The results of the diagnosis of the state and changes in the ecosystem of Onegskoe Lake (Lake Onego) and the watershed are presented using the developed information and analytical system “Lake Onego-watershed” (IAS), consisting of a comprehensive database (DB), a combined database of Roshydromet and Northern water problems institute/Karelian Research Center of the Russian Academy of Sciences on the nutrient load for the modern period 1995–2022, the ILLM mathematical model for assessing the removal of nutrients from the watershed and the formation of the nutrient load on the lake and the 3D-mathematical model SPLEM, developed for Lake Onego. Information was collected on the main sources of nutrient load in the Lake Onego catchment area, as well as available field observation data on the flow of nitrogen and phosphorus into the lake. The contribution of different nutrient sources coming from river runoff, diffuse sources, urban discharges and from trout farms was calculated for the lake and the main limnic areas. Based on data from field observations over the past 30 years and the results of numerical experiments using the SPLEM model with a grid resolution of 1 km it is shown that the ecosystem of the lake not only did not restored after the reduction in anthropogenic load after 1991, but eutrophication of waters in the lips and bays continues due to the influence of industrial and agricultural enterprises, trout farms and noticeable climate warming. Functional for the IAS “Lake Onego-catchment” to visualize the main modeling results on a 1 km grid was developed, and a web application interface has been created.
Effect of Climate and Socio-Economic Changes on the State of the Baltic Sea Ecosystems
Authors: Eremina T. R. , Khaimina O. V. , Vladimirova O. M.
Published: July 2024

In this study, calculations are performed to reproduce the main components of the Baltic Sea ecosystems based on the stationary, boxed SANBALTS model under various scenarios of climate change in combination with two scenarios of the development of socio-economic conditions. Under various warming scenarios, a decrease in the nutrient load will lead to a reduction in the area of hypoxic zones in the Baltic Sea, while the most significant decrease in the area is due to the scenario of a reduction in the agricultural sector and population. The phosphorus in the benthic layer will decrease, the concentration of inorganic nitrogen will increase, and nitrogen fixation will decrease. The most noticeable decrease in primary production and an increase in water transparency is associated with a moderate climate change scenario and with a significant decrease in the nutrient load. The results showed that under certain combinations of scenarios, an improvement in the ecological state of the sea can be expected even under the most unfavorable climatic scenario.
Scenario Analysis of Socio-Economic and Climate Related Changes in Nutrient Load and Retention for the Pregolya River Catchment (South-Eastern Baltic): The View at the Beginning of 21st Century
Authors: Chubarenko B. , Gorbunova J. , Domnin D.
Published: July 2024

The study analysed the transboundary Pregolya River Catchment, covering both the Polish and Russian parts, using the HYPE hydrological module and FyrisNP emission-retention model. The results revealed significant spatial variations in nutrient retention. The data assessment indicates that, at the start of the 21st century, the nutrient load from the Polish part of the catchment is significantly greater than that from the Russian part. Model simulations based on climatic projections for the years 2041–2060, but with current nutrient loads, showed a significant level of uncertainty in the changes of nutrient export to the Baltic Sea. The range for total nitrogen was –10 % to +27 %, and for total phosphorus it was –29 % to –10 %. Model simulations based on different socio-economic scenarios, but current climate conditions, showed that if present 5-year trends are maintained, nutrient export will only increase slightly (3 % for total nitrogen and total phosphorus). If the plans for socio-economic growth of Polish and Russian local governments are implemented, including the expansion of agriculture in Kaliningrad Oblast, there will be a significant increase in nutrient export (78 % for total nitrogen and 55 % for total phosphorus).
Bioaccumulation of Cadmium and Copper in Different Areas of The Eastern Part of The Gulf of Finland
Authors: Berezina N. A. , Kamardin N. N. , Sharov A. N.
Published: July 2024

The Gulf of Finland (with the estuary of the Neva River) is located in the northeastern part of the Baltic Sea and plays a key role in the formation of biological resources and the quality of the natural environment of the entire Baltic Sea. Along with eutrophication, its ecosystem is subject to anthropogenic pollution with toxic elements, including heavy metals. In this work, we analyzed the content of cadmium and copper in bottom sediments of the Gulf of Finland and in the tissues of the dominant species of benthic macrofauna — the deposit-feeder polychaete Marenzelleria arctia and the predatory isopod Saduria entomon. Significant variability was found in the spatial distribution of these elements in both environments. The average concentrations of cadmium (0.67±0.1 mg/kg of dry matter) in bottom sediments were correspondingly two times higher, and copper (34.4±4.0 mg/ kg) 1.5 times lower than the threshold levels established for the Baltic Sea. A significantly higher content of these metals was found in the tissues of isopods than polychaetes; in some locations it is an order of magnitude higher in isopods than in polychaetes. The factor of trophic transfer of metals in the Gulf food web showed biomagnification, i. e. accumulation of metals during the transition from low-level consumers (M. arctia) to predatory consumers (S. entomon), cadmium by 3.7 times and copper by 8.7 times. Thus, both species of benthic animals have high accumulative activity in relation to cadmium and copper, which contributes to the active transport of both metals from bottom sediments to marine biota, and, ultimately, transfer to the higher levels of the food web (fish, birds and mammals).
Variability of saltwater flow in the Hoburg Channel, Baltic Sea: in situ measurements vs NEMO modelling
Authors: Paka V. T. , Zhurbas V. M. , Golenko M. N. , Korzh A. O. , Kondrashov A. A.
Published: July 2024

A half-year long time series of the bottom layer velocity measured in situ in the Hoburg Channel displayed seven-day oscillations of the saltwater flow. The flow was characterized by alterations of surges with the increase of northward velocity to approximately 0.2–0.3 m/s and blockages when the northward velocity vanishes or becomes small negative. The measured time series of the northward velocity component was surprisingly highly correlated with the simulation by NEMO reanalysis at the correlation coefficient of 0.82 and the 95 % confidence limits of 0.76–0.86. The seven-day oscillations were accompanied by almost synchronous oscillations of the southeast component of the wind vector. It can be considered convincing evidence that the seven-day oscillations in the saltwater flow were caused by wind forcing.
The Influence of Modern Alluvial Areas on Sea Level Changes in The Neva Bay During Storm Surges in The Conditions of Operation of The Saint Petersburg Flood Prevention Faculty Complex
Authors: Tikhonova N. A. , Zakharchuk E. A. , Gusev A. V. , Travkin V. S. , Pavlovsky A. A.
Published: July 2024

Using numerical experiments with a three-dimensional baroclinic hydrodynamic model of the Baltic Sea, which covers the refined grid area around the Neva Delta and Neva Bay, and takes into account the operations of the Saint Petersburg Flood Prevention Facility Complex (FPFC), we investigate the influence of modern alluvial areas on sea level changes in the Neva Bay and Neva Delta during storm surges, under different volumes of Neva River discharge. The hydrological conditions that developed in early December 2015, when Storm Desmond approached St. Petersburg, which caused three dangerous level rises in the east of the Gulf of Finland, one after the other. The alluvial deposits of territories do not have noticeable changes in the sea level of the Neva Bay with the gates of the FPFC closed during storm surges. It is shown that, depending on the runoff of the Neva, with the gates of the FPFC closed, additional sea level rises in the Neva Bay due to alluviation do not exceed 1–5 cm, while in the Neva Delta they reach 20.5 cm. The rise of the sea level to 161 cm at the Mining University, at which floods are recorded in St. Petersburg, occurs due to alluviation 1–2 hours earlier. At the maximum volume of Neva runoff for the autumn-winter period, 27 hours after the closure of the gates of the FPFC, a dangerous flood is recorded in the Neva Bay near the Mining University point, and 48 hours later — a particularly dangerous one.
Maternal Incarceration and Adolescent Health Risk Behavior Patterns: Exploring Gender and Racial Differences
Authors: Zhao Qianwei
Published: July 2024

Objectives: Research suggests that adolescents exposed to maternal incarceration have higher odds of being classified into more severe health risk behavior patterns than those without such experiences. However, the potentially heterogeneous effect of maternal imprisonment on
adolescents with distinct individual characteristics remains under-investigated. This study aimed to advance the knowledge base by examining its impact based on adolescent gender and race. Methods: Specifically, this research used a nationwide dataset to examine the moderating effect
of adolescent gender and racial background on the association between maternal incarceration and adolescent health risk behavior patterns. Results: The interaction terms were not statistically significant in predicting health risk behavior patterns, except for some trends toward significance
worth noting. Specifically, black adolescents with maternal incarceration experiences trended toward lower odds, and Hispanic and multiracial or other adolescents trended toward higher odds of being classified into Class 3 than Class 2, compared to their white counterparts. Additionally, multiracial
or other adolescents with maternal incarceration experiences trended toward higher odds of being classified into Class 4 than Class 2, compared to their white peers. Conclusions: Maternal incarceration may have a distinct impact on the health risk behavior patterns of adolescents with
different racial backgrounds.
Acceptability of Patient Navigation to Promote Follow-up Colonoscopy
Authors: Schneider Jennifer L. , Rivelli Jennifer S. , Vaughn Katherine S. , Thompson Jamie H. , Petrik Amanda F. , Coronado Gloria D.
Published: July 2024

Objectives: Patient navigation can improve participation in colorectal cancer (CRC) screening, but little is known about patients' experiences with navigation. Here we report patients' experience with navigation for colonoscopy following an abnormal stool-test result. Methods:
We conducted qualitative interviews among patients due for follow-up colonoscopy after an abnormal stool-test result, and who received patient navigation. Patients were enrolled in PRECISE, a randomized clinical trial comparing patient navigation versus usual care in a large federally qualified
health center. Telephone interviews were in English or Spanish in a sub-sample of patients. Recordings were transcribed, coded, and analyzed using a constant comparative approach. Results: We completed 25 interviews (12 in Spanish and 13 in English). All patients perceived navigation
as helpful. Spanish-preferring respondents had more barriers and needed support through the colonoscopy process. Navigated patients valued assistance with scheduling and having a single point of contact for bowel preparation questions. Patients suggested making sure navigators are well-versed
in the colonoscopy experience, timely with calls, have access to local resources to help resolve barriers, and expand outreach to weekends and evenings. Conclusions: Patients who received navigation for follow-up colonoscopy perceived it as acceptable, helpful, and reassuring. Patients
recommended the service continue and suggested improvements.
Eksperimen Sistem Kinetic Origami Untuk Material Tas
Authors: Kriswanto Fransiscus Ryan , Herdiana Wyna , Jaya Brian Kurniawan
Published: July 2024

Produk tas merupakan barang yang sangat berkaitan dengan aktifitas manusia, tas dapat membantu pengguna untuk membawa barang dari satu tempat ketempat yang lain. Salah satu kegiatan yang berkatian erat dengan produk ini adala traveling, pada saat ini sudah ada produk tas yang memiliki fitur space saving yang dapat membantu pengguna untuk meringkas tas mereka pada saat tidak digunakan sehingga mampu memaksimalkan ruang, namun dari produk eksisting yang sudah ada ditemukan beberapa kekurangan yaitu susahnya mengembalikan produk ke ukuran yang ringkas dikarenakan tatacara lipat yang panjang, dengan tatacara lipat yang salah produk juga dapat beresiko untuk cepat rusak. Dari permasalahan tersebut ditemukan salah satu sistem yang memiliki peluang untuk menyelesaikan permasalahan yaitu sistem kinetic origami. Sistem ini dapat berpeluang untuk dikombinasikan dengan produk tas yang dapat membantu pengguna untuk meringkas tas dengan mudah dan memiliki ciri khas tersendiri dari segi visual. Dalam penelitian ini akan dilakukan eksperimen pada beberapa material tas yang bertujuan untuk menemukan material paling cocok dalam menerapkan sistem kinetic origami tersebut.
Effect of heat treatment conditions on the phase transformation characteristics of nitinol
Authors: Öncel Levent , Açma Mahmut
Published: July 2024

Nitinol is the most widely used shape memory alloy in medical applications. In this study, the effect of different heat treatment conditions on the phase transformation characteristics of medical-grade nitinol was investigated. Nickel-rich nitinol wires containing 50.6% nickel with a diameter of 120 μm were used in the experimental studies. The nitinol wires were heat treated for 10 minutes at heat treatment temperatures between 540 and 570 °C. Then, nitinol wires were heat treated at a heat treatment temperature of 550 °C between 8 and 14 minutes. The austenitic and martensitic transition temperatures of these samples were measured using differential scanning calorimetry (DSC). In the experiments with 10 minutes of heat treatment time, transition temperatures decreased, and hysteresis increased with the increase in heat treatment temperature. This is related to the amount of precipitates in the structure. In the experiments carried out at 550 °C, transition temperatures decreased, and hysteresis increased with increasing heat treatment time. Experimental studies showed that the austenite finish (Af) temperature of all nitinol wire samples was below 37 °C, and they will exhibit superelasticity in the human body.
Dijital dönüşüm sürecinde blok zincir teknolojisi benimsenmesinin önündeki engellerin değerlendirilmesi
Authors: Nebati Emine Elif
Published: July 2024

Blok zincir teknolojisi, işletmelerin iş yapma biçimlerini dijital dönüşüm sürecinde köklü şekilde değiştiren yenilikçi yaklaşımlardan biridir. Blok zinciri, verilerin merkezi bir otorite olmaksızın güvenli ve şeffaf bir şekilde kaydedilmesini ve yönetilmesini sağlamaktadır. Blok zincir teknolojisinin hızla yayılmasıyla birlikte, şirketlerin bu teknolojiye uyum sağlaması kaçınılmaz hale gelmiştir. Dijital dönüşüm sürecinde blok zincir teknolojisi, işletmeler için büyük fırsatlar sunmaktadır. Verimlilik artışı, maliyetlerin azaltılması, güvenliğin artırılması ve yeni iş modellerinin oluşturulması, blok zincir teknolojisinin en önemli avantajlarıdır. Ancak, blok zincir uyumunun önünde birtakım engeller de bulunmaktadır. Bu engellerin üstesinden gelmek için, şirketlerin stratejik bir yaklaşım benimsemeleri ve blok zincir teknolojisine uyum sağlamak için kapsamlı bir planlama yapmaları gerekmektedir. Bu çalışma, e-ticaret alanında faaliyet gösteren şirketlerin blok zincir teknolojisine uyum sağlama sürecinde karşılaştığı engelleri küresel bulanık analitik hiyerarşi süreci (AHP) ile değerlendirmeyi amaçlamaktadır. Çalışma sonucunda, çalışmada en önemli engelin, esneklik sınırlamaları olduğu gözlenirken, diğer kriterler sırasıyla; devlet denetimi, gizlilik eksikliği, gecikme, boyut büyüklüğü ve maliyet olarak ortaya çıkmıştır. Bu teknolojinin dijital dönüşüm sürecinde nasıl bir rol oynadığını anlamak, e-ticaret alanında faaliyet gösteren işletmelerin gelecekteki rekabet avantajlarını belirlemelerine yardımcı olması açısından çalışma önem arz etmektedir.
Analisis Pengangguran Terhadap Tindakan Kriminalitas di Kota Bekasi
Authors: Kurnia Nurul Azmi  , Salsabila Putri Azzahra  , Vanesa Kusuma Dewi  , Yuarini Wahyu Pertiwi
Published: July 2024

This study aims to determine whether unemployment affects criminality in Bekasi City through a literature study approach. Unemployment is often considered as one of the main factors driving crime, as economic limitations can force individuals to commit criminal acts as a means of survival. This study collected and reviewed various previous studies, including journal articles, research reports, and relevant statistical data, to explore the relationship between unemployment and crime. The results of the literature review show that unemployment is not the only cause of crime. Rather, there are other factors that influence crime rates, such as education, socio-economic conditions, and local government policies. The findings are expected to provide insights or a deeper understanding of the social dynamics that influence criminality
Kekerasan Seksual Pada Remaja
Authors: Intan Fadilah Nasution  , Ferdy Muzzamil  , Salwa Azzharah  , Aura Islamyazizah
Published: July 2024

Sexual violence is deviant sexual behavior that can affect the health and life of the victim. Various studies show that teenagers are vulnerable to experiencing sexual violence, both from people they know and strangers. This literature review research on 10 articles on the internet aims to understand more about sexual violence against teenagers. Based on the results of the literature review, it was found that sexual violence against adolescents can occur in various forms, such as rape, molestation, sexual harassment, or sexual exploitation. Research also shows that risk factors for sexual violence in adolescents include a disharmonious family environment, previous experiences of violence, conflicting lifestyles, and low levels of education. Sexual violence in adolescents can have short-term and long-term impacts on the health and well-being of victims. Short-term impacts include physical, emotional, and psychological injuries, while long-term impacts can include psychological disorders, including depression, anxiety disorders, post-traumatic stress, and suicidal ideation. To reduce the risk of sexual violence in adolescents, there needs to be ongoing prevention and education about healthy sexuality and social responsibility in respecting human rights and respecting human dignity. Prevention can be carried out at the individual, family and community levels, including providing counseling support to victims and providing rehabilitation and recovery services.
Faktor-Faktor Yang Mempengaruhi Kejahatan Berulang
Authors: Tugimin Supriyadi  , Siti Nuriya Hikma  , Sausan Salsabila  , Siti Nurmala  , Helta Puspasari
Published: July 2024

This research aims to identify factors that influence repeat crime and explore prevention strategies that can reduce this tendency. Through a case study approach, this research analyzes several recidivism cases involving repeat offenders in Indonesia. Findings suggest that internal factors such as weak self-control and intimacy with religion, as well as external factors such as economic problems and negative social environments, play an important role in increasing the risk of recidivism. Criminological theories such as Social Structure Theory, Becker's Economic Theory, Opportunity Theory, and Social Learning Theory are used to understand the phenomenon of recidivism and identify effective prevention strategies. Based on the case analysis, comprehensive efforts are needed from various parties, including government agencies, communities, and non-profit organizations, to provide effective rehabilitation, increase supervision and social control, and provide social support to former drivers in order to reduce the risk of recidivism and strengthen community security overall.
Dampak Stress Kerja Terhadap Kesejahteraan Mental Anggota Kepolisian
Authors: Shabrina Shabrina  , Elisabet Mediana Putri  , Hildegardis Patricia Loko Wewa  , Salwa Tazkia F  , Tugimin Supriyadi
Published: July 2024

In general, the performance of police officers will not always increase, but sometimes the performance of police officers also decreases due to excessive work stress. This gives rise to various impacts, one of which will have an impact on the mental well-being of police officers. The aim of this research is to determine the impact of work stress on the mental well-being of police officers. This type of research is qualitative research, while for data collection this research uses literature studies. The results of this research show that work stress has a social and psychological impact on the mental well-being of individual police officers who carry out their duties. The importance of managing workload and social support from superiors and co-workers is one of the influential factors in managing the impact of work stress and increasing job satisfaction.
Asuhan Kebidanan Komprehensif Pada Ny.E Umur 39 Tahun G3P1A1 Dengan Faktor Resiko Umur, Kek Dan Anemia di BPM Ny.R Wilayah Kerja Puskesmas Bumiayu Tahun 2023
Authors: Nadia Eka Khaerunnisa  , Endang Susilowati  , Riyanti Riyanti
Published: July 2024

According to WHO (2019), the maternal mortality rate (MMR) in the world is 303,000 people. The Maternal Mortality Rate (MMR) in ASEAN (2020) is 235/100,000 live births. Based on data from the Ministry of Health, the Maternal Mortality Rate (MMR) in Indonesia in 2020 was 4,627 deaths. Health Department data (2021) MMR 62 cases. Data from Bumiayu Community Health Center (2022) AKI 2 cases. The aim of this research is to reduce maternal and infant morbidity and mortality rates in Brebes Regency, especially the Bumiayu Community Health Center area. This research method uses descriptive research with a qualitative descriptive approach. The results of this research show that in the results of Comprehensive Care there was a gap between theory and practice after comprehensive midwifery care was carried out on Mrs. E is 39 years old with risk factors for CED age and anemia in Mrs. BPM. R working area of Bumiayu Health Center from third trimester pregnancy, childbirth, newborns, postpartum and family planning using Varney midwifery and SOAP approaches.
Implementasi Sistem Hidrolik Pada Mesin Spandek Produksi di PT Primaland
Authors: Juniwan Juniwan  , Endi Permata
Published: July 2024

The purpose of this journal article is to provide research findings regarding the application of automated production control system theory to the construction industry. from expediting work processes. The method used in this research is to observe the production process of a Primalland light steel construction company in real time. Please note, raw materials can be obtained from literature studies, with a focus on their implementation in industrial processes. There are many challenges in the development sector in Indonesia, both in terms of quality and quantity, PT. PrimaLand Light Steel Frame was founded on December 25 2008 in Pandeglang. Based on the research that has been carried out, the data obtained from this research is then analyzed in detail to determine whether there is a significant difference between price changes that affect sales volume and price changes that affect sales volume. Research on sales volume at PT PrimaLand Pandeglang between 2014 - 2016. PrimaLand light steel tries as best as possible to maintain the quality of the roof truss profile produced by using high quality steel coils, or what can be called High Tension, namely with a yield strength range of Mega Pascal 400 Mpa – 500 Mpa and generally standard G550, or reaching 2x the strength from conventional melted steel which is more than 240 Mpa.
Analisis Kadar Mangan (Mn) dan Besi (Fe) Pada Instalasi Pengolahan Air Minum (IPA 3) PT Hanarida Tirta Birawa
Authors: Nur Oktavia Nikmatin Hasanah  , Yayok Suryo Purnomo
Published: July 2024

Population growth continues to increase, making the need for clean water increasingly increasing. The quality of raw water needed as a source of clean water also requires further processing to ensure it meets quality standards. To make clean water and drinking water suitable for consumption by the community, the role of the Regional Drinking Water Company (PDAM) is needed. PT Hanarida Tirta Birawa is one of the companies that serves clean water needs in Sidoarjo Regency. Clean Water Treatment Plants will have a big impact on environmental quality, especially water. The parameters that have the greatest influence on the content of raw water that will be processed into clean water are Fe (Ferrom/Iron) and Mn (Manganese) contained in raw water. At PT Hanarida Tirta Birawa, the manganese (Mn) content ranges from 0.04 to 0.13 mg/l and iron (Fe) ranges from 0.11 to 0.17 mg/l and meets the quality standards of RI Minister of Health Regulation No. 492/Menkes/PER/IV/2010. The reduction in processed water reached 87.23% for manganese and 93.29% for iron.
Hubungan Jarak Jamban Terhadap Kandungan Bakteri Fecal Coliform Pada Air Sumur Gali Desa Kuranji Di Nagari Lubuk Jantan
Authors: Helma Novita Rolisa  , Leila Muhelni
Published: July 2024

Domestic waste that is disposed of carelessly is one of the causes of soil pollution. This research was conducted in the village of Kuranji Nagari Lubuk Jantan, the measurement result are filled in based on meansuring the distance from the latrine to the dug well using a meter. Fecal Coliform variable, the MPN (Most Probable Number) test was used on dug well water with reference to SNI 06-4158-1996 at the Andalas University Water Laboratory. Of the 31 dug well facilities, there are 31 dug well facilities (100%) that have well water with Fecal Coliform that does not meet the requirements in accordance with the 2017. Research result that: 1. Based on the proportion of fecal coliform in Kuranji village, laboratory test result on 31 dug well samples do not meet the requirements for direct consumption in RI Minister of Health Regulation No. 416/Menkes/per/IX/1990 with a percentage of 100%. 2. The potential spread of fecal coliform contamination is due to inadequate contruction. 3. Of the 31 samples of dug wells and latrines that were observed, 23 dug wells had an unsatisfactory contamination distance of 11 meters with a contamination rate of 29 with a percentage of (93.55), 2 dug wells had a satisfactory distance to the latrine of 11 meters with a percentage of 6.50%.