bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Kualitas Air Baku pada Instalasi Pengolahan Air (IPA) Kapur Tirta Raya 20 liter/detik Kabupaten Kubu Raya
Authors: Arifin Arifin , Clara Hutabarat Martha Elizabeth
Published: April 2024

Sungai Kapuas adalah salah satu sungai yang mengalir di Kota Pontianak yang menerima limbah, baik dari industri maupun domestik. Perkembangan industri dan pemukiman di sepanjang aliran Sungai Kapuas telah mempengaruhi kualitas air sungai. Penurunan kualitas air ditandai dengan perubahan warna air padahal sebagian masyarakat di pinggiran sungai masih memanfaatkan air Sungai Kapuas untuk kebutuhan sehari-hari. Selain itu, air Sungai Kapuas juga dimanfaatkan sebagai air baku untuk pengolahan air bersih di IPA Kapur Tirta Raya 20 L/det Kabupaten Kubu Raya. Analisis kualitas air baku pada penelitian ini bertujuan untuk mengkaji kualitas air baku Sungai Kapuas secara fisika dan kimia, mengetahui sumber pencemar di sekitar IPA Kapur Tirta Raya, dan menentukan upaya untuk mengendalikan pencemaran tersebut.
Potensi Limbah Kulit Nanas (Ananas comsus) dan Kemangi (Ocimum basilicum) sebagai Bahan Dasar Hand sanitizer
Authors: Santoso Briliani Azmi , Agustin Dela Tri , Idzihaar Januar Reyhan , Jati Dian Rahayu
Published: April 2024

Kulit nanas dan daun kemangi memiliki potensi untuk dijadikan hand sanitizer di Era Pandemi covid-19 saat ini mengandung senyawa flavonoid yang bersifat desinfektan yang mampu menghambat pertumbuhan bakteri. Bentuk sediaan yang dibuat adalah hand sanitizer spray. Tujuan penelitian ini yaitu untuk mengetahui tahapan pembuatan hand sanitizer berbahan dasar ekstrak limbah kulit nanas dan daun kemangi serta mengetahui hasil uji pH, uji iritasi kulit, uji bakteri, dan uji homogenitas. Pada produk hand sanitizer ekstrak limbah kulit nanas dan daun kemangi diperoleh dengan metode penyaringan biasa dan penambahan etanol 96% untuk menetralisasikan pH hand sanitizer agar aman untuk kulit serta penambahan ocean fresh fragfrance untuk mengurangi bau dari ekstrak kulit nanas. Hand sanitizer ini diformulasikan dengan konsentrasi limbah kulit nanas : daun kemangi : etanol (1:1:3, 1:2:5, 1:3:6). Berdasarkan hasil penelitian didapatkan bahwa sampel pH berada pada range 4,5-4,76 yang masih aman untuk kulit sesuai SNI. Campuran tersebut setiap sampel yaitu homogen dan tidak menyebabkan iritasi kulit. Efektivitas yang paling baik dalam menghambat pertumbuhan bakteri yaitu konsentrasi 1:3:6 dengan 86,4%. Ekstrak limbah kulit nanas dan daun kemangi dapat dijadikan produk yang ramah lingkungan serta ekonomis.
Pola Sebaran Emisi CO, NOx, Partikulat dan SO2 dari Sumber Insinerator Rumah Sakit Menggunakan Model SCREEN3
Authors: Wandasundari Margareta , Jati Dian Rahayu , Desmaiani Herda
Published: April 2024

Aktivitas pembakaran limbah berbahaya dan beracun (B3) pada insinerator rumah sakit menghasilkan emisi diantaranya karbon monoksida (CO), nitrogen oksida (NOx), partikulat, dan sulfur dioksida (SO2) yang dapat membahayakan kesehatan masyarakat di sekitar kawasan insinerator. Sebagian besar gas dan partikulat diemisikan melalui cerobong dan terdispersi disekitar kawasan insinerator rumah sakit. Penelitian ini bertujuan untuk menganalisis pola dispersi emisi CO, NOx, partikulat, dan SO2 dari sumber insinerator RSUD Sultan Syarif Muhammad Alkadrie dengan Model SCREEN3 berdasarkan hasil uji emisi Bulan Juni 2022 dan Juni 2023. Penelitian ini dilakukan pada insinerator RSUD Sultan Syarif Muhammad Alkadrie. Model SCREEN3 digunakan untuk mengestimasikan nilai konsentrasi dan jarak konsentrasi maksimum selanjutnya visualisasi dilakukan dengan perangkat lunak Surfer. Hasil permodelan menunjukan konsentrasi emisi dan ambien yang dihasilkan oleh insinerator RSUD Sultan Syarif Muhammad Alkadrie masih memenuhi baku mutu PerMenLHK Nomor P.70/Menlhk/Setjen/Kum.1./8/2016 dan PP 22 Tahun 2021. Hasil visualisasi menunjukan pola dispersi emisi pada Juni 2022 dominan bergerak dari arah selatan barat daya menuju arah timur-timur laut sedangkan pada Juni 2023 dominan bergerak dari arah barat menuju timur
Efektivitas Sabut Kelapa dan Ampas Tebu Sebagai Bahan Pot Organik
Authors: Anggara Wira , Julia Julia , Anggraini Meity , Jati Dian Rahayu
Published: April 2024

Penelitian ini bertujuan untuk mengkaji efektivitas kekuatan pot organik dengan inovasi bahan pot organik terbuat dari campuran ampas tebu dan sabut kelapa. Penelitian menggunakan kanji sebagai perekat. Penelitian mengkaji potensi pengurangan limbah ampas tebu dan sabut kelapa. Penelitian ini menggunakan pot plastik berdiameter 12 cm dan 9 cm berlapis kantong plastik. Penelitian dilakukan dengan variasi komposisi bahan yaitu sabut kelapa, ampas tebu dan campuran keduanya. Penelitian terhadap rendaman dalam air dilakukan untuk menguji ketahanan pot organik. Hasil uji ketahanan yang diperoleh dari ketiga variasi pot organik yaitu pot dengan bahan campuran ampas tebu dan sabut kelapa memiliki ketahanan paling baik.
Desalinasi Air Payau Menggunakan Metode Reeverse Osmosis (RO) Dengan Variasi Tekanan Pompa
Authors: Prastya Helmi , Danial Mochammad Meddy , Deah Arfena
Published: April 2024

Air payau yang melimpah di sekitar masyarakat pesisir seringkali sulit dimanfaatkan secara langsung karena mengandung tingkat mineral garam yang tinggi. Untuk menjadikannya layak konsumsi, diperlukan proses desalinasi, di mana salah satu metodenya adalah reverse osmosis (RO). Tujuan dari penelitian ini adalah untuk menginvestigasi proses dan tingkat efektivitas metode reverse osmosis dengan variasi tekanan pompa. Pengujian sampel melibatkan analisis parameter salinitas, TDS, pH, E.Coli, Fe, dan Mangan. Hasil pengolahan diolah untuk mengetahui presentase perubahan sebelum dan setelah pengujian untuk mengetahui efektivitasnya. Data yang dihasilkan kemudian dibandingkan untuk menentukan metode pengolahan yang paling efektif. Hasil analisis menunjukkan bahwa proses desalinasi menggunakan metode reverse osmosis terdiri dari tiga tahap, yaitu pre-treatment, treatment, dan pasca-treatment. Pengolahan dengan menggunakan metode reverse osmosis pada variasi tekanan single pump dengan menggunakan membran tipe BW (brackish water) menunjukkan efektivitas penurunan parameter salinitas sebesar 63,70% dan parameter TDS sebesar 60,43%. Sementara itu, pada membran tipe SW (sea water), efektivitas penurunan parameter salinitas mencapai 97,69%, dan parameter TDS sebesar 97,67%. Selanjutnya, pengolahan reverse osmosis pada variasi tekanan double pump dengan menggunakan membran tipe BW (brackish water) memiliki nilai efektivitas penurunan parameter salinitas sebesar 20,83%, dan parameter TDS sebesar 18,41%. Pada membran tipe SW (sea water), efektivitas penurunan parameter salinitas mencapai 96,73%, dan parameter TDS sebesar 96,59%.
Perencanaan Sistem Penyediaan Air Bersih di Desa Teluk Melano Kecamatan Simpang Hilir Kabupaten Kayong Utara
Authors: Susanti Fitria , Utomo Kiki Prio , Pramadita Suci
Published: April 2024

The lack of access to clean water services had led a significant portion of the community in Teluk Melano Village to rely on river water and rainwater as their primary sources to meet their needs. Teluk Melano Village has the highest population in the Simpang Hilir District, Kayong Utara Regency. As of now, Teluk Melano Village does not have a Clean Water Supply System (BPAM). Therefore, a study was needed to meet the demand for clean water by conducting a Clean WaterTreatment Plant (IPA Bersih) Planning for Teluk Melano Village. This study aimed to design a clean water supply system with a planning period of the next 15 years (2023-2037). The method used involved primary data collection based on SNI 6989.57.2008 and SNI 8066:2015, and secondary data collection sourced from the Teluk Melano Village Monograph for the years 2020 and 2022. The total demand for clean water in Teluk Melano Village in 2037 would be 3.39 liters/second with a population of 1930 people. The results of the water quality test of the Melani River in this study showed that the parameters of E-coli, color, and pH, based on Government Regulation No. 22 of 2021, Class1, on the Implementation and Management of the Environment, did not meet the standard quality requirements for clean water. The planned Water Treatment Plant (WTP) included a complete conventional treatment process, including coagulation using hydraulic type rapid mixing utilizing gravity on the waterfall, flocculation using vertical baffled channels, sedimentation using plate settlers to reduce turbidity, filtration using rapid sand filters with filter media consisting of quartz sand and support media consisting of gravel, disinfection using chemical disinfectant in the form of chlorine solution, neutralization using a dosing pump for the addition of lime, and the type of reservoir used is a ground reservoir.Keywords: clean water, Water Treatment Plant, Teluk Melano Village
Potensi Bakteri Indigenous Pada Air Limbah Pencucian Bijih Bauksit Untuk Meremediasi Air Tercemar Logam Besi (Fe)
Authors: Maulidyana Frischa , Apriani Isna , Jumiati Jumiati
Published: April 2024

Kegiatan pertambangan bauksit di Kalimantan Barat yaitu PT. ANTAM menghasilkan bijih bauksit. Senyawa pengotor pada bauksit dipisahkan dengan pencucian. Proses pencucian menghasilkan limbah cair dan padatan yang dialirkan ke kolam pengendapan. Kolam pengendapan rentan terjadi kebocoran dan penambahan volume kolam saat hujan. Kapasitas kolam dijaga dengan mengalirkan air ke lingkungan sehingga menimbulkan pencemaran, mengganggu ekosistem akuatik dan menjadi racun bagi organisme karena mengandung logam Fe yang melebihi baku mutu. Maka, perlu dipulihkan dengan bioremediasi bantuan bakteri indigenous. Tujuan penelitian untuk mengetahui jenis isolat bakteri indigenous pada air limbah pencucian bijih bauksit dan air rawa PT. ANTAM yang berpotensi meremediasi air limbah yang tercemar logam besi (Fe) dan untuk mengetahui pengaruh bakteri indigenous dalam meremediasi air limbah yang mengandung logam besi (Fe) dengan berbagai variasi konsentrasi air limbah. Hasil didapat jenis isolat bakteri indigenous yang berpotensi meremediasi air limbah yang tercemar logam besi yaitu Bacillus sp. dan Pseudomonas sp. Konsentrasi Fe setelah bioremediasi menunjukkan penurunan pada perlakuan reaktor limbah 25%, 75% dan 100%. Aktivitas bakteri Bacillus sp. dan Pseudomonas sp. berpotensi menurunkan konsentrasi Fe pada berbagai konsentrasi limbah serta Bacillus sp. memiliki potensi menurunkan Fe lebih baik karena lebih resisten terhadap lingkungan cemaran yang tinggi.
Pemanfaatan Daun Nanas Sebagai Biosorben Untuk Perbaikan Kualitas Air Gambut
Authors: Octaviani Via , Kadaria Ulli , Asbanu Govira Christiadora
Published: April 2024

Daun nanas mengandung antara lain Selulosa, lignin, pektin, lemak, wax, abu, dan zat-zat lain (protein dan asam organik). Kandungan selulosa dalam daun nanas berkisar 70% - 80% yang mampu dijadikan biosorben untuk menyerap logam berat. Air gambut Desa Rasau Jaya Dusun Banjar Rejo memiliki karakteristik fisik bewarna coklat kemerahan dan bau. Tujuan penelitian ini untuk memperbaiki kualitas air gambut Desa Rasau Jaya Dua Dusun Banjar Rejo dengan memanfaatkan daun nanas sebagai biosorben alami.. Penelitian berskala laboratorium menggunakan jartest dengan sistem batch. Hasil uji air gambut Dusun Banjar Rejo berwarna merah kecoklatan 696 Pt-Co Unit (baku mutu: 15 Pt-Co Unit), pH sebesar 4,2 (baku mutu: 6-9), besi (Fe) sebesar 8,6 mg/L (baku mutu: 0,3 mg/L) dan kandungan zat organik (KMnO4) sebesar 139 mg/L(baku mutu: 10 mg/L). Pengolahan daun nanas menjadi biosorben dengan cara dehidrasi, karbonasi dan aktivasi. Proses aktivasi menggunakan larutan HCl 0,1 selama 24 jam. Biosorben yang dihasilkan bagian yang hilang pemanasan 950ºC, kadar air, kadar abu, kadar volatil, daya serap iodin, karbon aktif murni, kerapatan jenis curah dan lolos mesh 325 masing-masing yaitu 90,879%, 6,0056%, 9,066%, 85,178%, 582,125 mg/g, 0,055%, 0,434 g/ml dan 9,524%. Kapasitas adsorpsi rata-rata pH, warna, besi dan zat organik (KMnO4) pada biosorben teraktivasi HCl 0,1 M masing-masing sebesar 3,21 mg/g, 351,2 mg/g, 7,18 mg/g dan 23,2 mg/g, mengikuti model isoterm adsorpsi freundlich dengan nilai R2 masing-masing sebesar 1, 0,9997, 0,9991 dan 0,9997.
Kombinasi Aerasi Venturi-Filtrasi dalam Pengolahan Air Sumur Bor Menjadi Air Bersih
Authors: Sari Indah Permata , Nuriyanti Chofifah Suci , Aprianti Amalina , Purnaini Rizki
Published: April 2024

Ketersediaan air bersih sangat penting guna memenuhi kebutuhan sehari-hari masyarakat. Namun, terdapat beberapa daerah yang belum mendapatkan akses air bersih, sehingga masyarakat umumnya akan menggunakan air sumur bor. Kualitas air sumur bor bergantung pada kondisi lingkungan dan sistem akifer tanah air yang masih belum memenuhi syarat air bersih menurut Permenkes Republik Indonesia Nomor 32 tahun 2017. Air sumur bor ini memiliki kandungan besi (Fe) yang tinggi sehingga air berbau, berwarna keruh, dan pada wadah akan menimbulkan bercak kuning kecoklatan setelah beberapa saat kontak dengan udara. Oleh karena itu dibuatlah alat pengolahan air secara aplikatif dengan sistem kombinasi aerasi venturi dan filtrasi dengan media saringan pasir silika dan zeolit. Tujuan penelitian ini yaitu mengetahui kemampuan alat dalam memperbaiki kualitas air sumur bor dari segi parameter besi (Fe) menjadi air bersih agar memenuhi syarat yang diperbolehkan. Hasil penelitian didapatkan bahwa kadar besi sebelum pengolahan 0,64 mgL-1 dan sesudah pengolahan 0,13 mgL-1 sehingga presentase penurunan kadar besi (Fe) sebesar 79,69 %.
Homonuclear Simplified Preservation of Equivalent Pathways Spectroscopy
Authors: Nimerovsky Evgeny , Kosteletos Spyridon , Lange Sascha , Becker Stefan , Lange Adam , Andreas Loren B.
Published: April 2024

Recently developed homonuclear Transverse mixing Optimal control Pulses (hTROP) revealed an elegant way to enhance the detected signal in multi-dimensional magic-angle spinning (MAS) NMR experiments. Inspired by their work, we present two homonuclear simplified preservation of equivalent pathways spectroscopy (hSPEPS) sequences for recoupling CA-CO and CA-CB dipolar couplings under fast and ultra-fast MAS rates, theoretically enabling a √2 improvement in sensitivity for each indirect dimension. The efficiencies of hSPEPS is evaluated for non-deuterated samples of influenza A M2 and bacterial rhomboid protease GlpG under two different external magnetic fields (600 MHz and 1200 MHz) and MAS rates (55 kHz and 100 kHz). 3D (H)CA(CO)NH, 3D (H)CO(CA)NH and 3D (H)CB(CA)NH spectra demonstrate the high robustness of hSPEPS elements to excite carbon-carbon correlations, especially in the (H)CB(CA)NH spectrum, where hSPEPS outperforms the J-based sequence by a factor of, on average, 2.85.
AEROMAGNETIC INVESTIGATION OF THE BANDED IRON FORMATIONS OF UM NAR AREA, CENTRAL EASTERN DESERT, EGYPT
Authors: Abu Donia Atef M.
Published: April 2024

Wadi Um Nar area acquired its importance since the discovery of banded iron formations (BIFs), and is one of the largest iron formation occurrences in the Eastern Desert of Egypt. Therefore, the recorded aeromagnetic data were processed, using a combination of edge enhancement filters, to identify major structures and recognize the lateral and vertical distribution of BIFs, as well as to determine the locations of buried magnetite ore bodies in this area. The obtained results from the application of these techniques revealed that the NW–SE, NE–SW and N–S directions are the common tectonic trends in the region. These trends could be faults or shear zones that have acted as good pathway or channels for hydrothermal fluids. Estimating the basement depth using source parameter imaging (SPI) showed that the BIFs depths varied from the surface down to about 450 m. Additionally, the orthogonal derivative maps of Wadi Um Nar BIFs showed an E–W trend, which corresponds exactly to the maximum magnetic intensity belt and their anomalies are characterized by a distinct dipole nature. These maps also revealed the extent and continuity of the main ore body of BIFs and showed that, they were mainly produced from magnetite mineral, formed in regions of structurally-controlled fluid flow.
LITHOLOGY DISCRIMINATION USING SHEAR AND COMPRESSIONAL WAVES IN UYO AND ITS ENVIRON, SOUTHEASTERN NIGERIA
Authors: O. Akankpo Akaninyene , E. Essien Ubong , U. Igboekwe Magnus
Published: April 2024

Compressional and shear wave velocities reveal vital information about the physical properties of rocks and their lithology contrast. In this study, we have applied the seismic refraction method to investigate the dynamic elastic modulus of subsurface layers in our study area. Electromagnetic geophones were firmly coupled to the ground to transform generated seismic energy at the source to electrical voltage which is a function of velocity. A total of twenty-seven P-wave refraction shootings were performed and measured P-wave velocity ranged from 218.00 ms-1 to 749.30 ms-1. The S-wave velocity obtained in the field ranged from 98.30 ms-1 to 340.70 ms-1. These values indicate that both layers 1 and 2 are weathered zones characterized by fine and lateritic sands which are capable of withstanding little or no mechanically related load or stress / pressure applied on the surface. In terms of Vp-Vs ratio, the first layer indicated a range of 2.2071 to 2.2183 with a mean value of 2.2108 for the area while the second layer produced a Vp-Vs ratio ranging from 2.1993 to 2.2055 with a mean value of 2.2023. The near constant Vp-Vs ratio of 2.2 obtained in the study shows a similarity in the formation grains in the shallow layers penetrated by the seismic waves.
GEOTECHNICAL ASSESSMENT OF SUB-GRADE SOILS ALONG STABLE AND UNSTABLE PAVEMENTS OF SUPARE-EMURE EKITI ROAD, SOUTHWESTERN NIGERIA
Authors: Oyeshomo Anthony Victor
Published: April 2024

The qualities of road construction materials are essential in their choice for various civil works. Therefore, engineering geological properties of the sub-soil that constitute sub-grade materials along Supare- Emure road were investigated in order to determine the causes of the failure of the pavement along the unstable sections. A total of twelve (12) sub- grade soil samples were collected from unstable and stable sections of the road and were subjected to various geotechnical tests. These tests include natural moisture content, atterberg limits, linear shrinkage, plasticity index and grain size. Results showed that the natural moisture content of the stable sections range from 5% to 11%, while those of unstable sections range from 23.8% to 37.2%. The range of the unstable sections fell short of required specification. For the plasticity index, both sections have values less than required 30%, while the unstable sections had linear shrinkage above 8%. On the grain size results, unstable sections have values greater than the specified 35% passing. Bedrock chemistry and clayey nature of sub-grade soils have been found to be responsible for the failed sections of the road investigated.
STRUCTURAL ANALYSIS, PETROGRAPHIC STUDY AND GEOCHEMICAL ASSESSMENT OF PAN-AFRICAN GRANITOID, GUSAU SHEET 54SE NORTHWEST NIGERIA
Authors: A.M Shuaibu
Published: April 2024

The study area is underlain by migmatite-gneiss quartzite rock suits with infolding mica schist which is intruded by batholitic Pan-African granitoids. Petrographic studies revealed quartz, orthoclase, hornblende and biotite as major minerals which are common to all members of rock units. The geochemical result of gneissic rock shows SiO2 content that range between 77.04%.wt to 80%.wt while mica schist depicts SiO2 content of 74.42 to 77.42%.wt. this implies silicious protolith for the both rock units. On the discrimination diagram gneiss and mica schist plot mainly in High-K calc-alkaline to calc-alkaline fields. Whereas, bivariate diagram of TiO2 versus SiO2 revealed that both gneissic rock and mica schist have sedimentary progenitors. High Rb, La and Th and low Nb, Sr, and Ti values shown by both gneiss and mica schist are compatible with typical crustal melts and suggest evolution from partial melting of crustal materials. The Pan-African granitoids has similar geochemical relationships. Geochemical studies shows that the rock units have limited variation in their major element compositions and give a decrease in CaO wt. %, and increasing Ba/Sr, Zr/Y ratios, K2O wt. % with increasing silica. The rocks are distinctly peraluminous, calc-alkaline as they plot in the High-K calc-alkaline and calc-alkaline, syn-collision fields on various discrimination diagrams. The characteristics suggest that the Basement rocks of the study area were formed from the fractional crystallization of a calc-alkaline magma in a syn- collision tectonic terrain.
FORWARD MODELING THE GROUP AND PHASE VELOCITIES OF RAYLEIGH AND LOVE SURFACE WAVES BENEATH THE CENTRAL ANATOLIA: FIFTH PARAMETER FOR TRANSVERSE ISOTROPY
Authors: Çakır Özcan , Kutlu Yusuf Arif
Published: April 2024

The complex dynamic processes such as the magma movements in the crust and uppermost mantle result in the anisotropic wave propagation. In case of the Rayleigh and Love surface waves, this anisotropy is known as the Rayleigh-Love wave discrepancy. The surface wave propagation beneath the Central Anatolia shows this discrepancy for which we utilize the vertical transverse isotropy in the form of forward solutions. We use single-station and two-station methods to attain the observed surface wave dispersion curves in the period range 7-40 s and then apply the two-dimensional (2-D) tomography to convert these curves into the velocity maps defined through a 0.05o x 0.05o – sized grid. The damped least-squares technique is used to invert the individual group and phase velocity curves for the one-dimensional (1-D) structure. The latter 1-D inversion provides the depth profiles for the Voigt isotropic average shear-wave velocity (𝑉𝑆) and the radial anisotropy (𝜉). The 𝑉𝑆 and 𝜉 depth profiles are employed to construct the vertical transverse isotropic (VTI) velocity structure beneath a grid point. Through the forward modeling, the VTI velocity structure is revised to jointly fit the observed Rayleigh and Love group and phase velocities. In the forward modeling, the fifth VTI parameter (𝜂𝐾) measuring the departure from the elliptic condition (𝜂𝐾=1.0) and the anisotropic velocity perturbations (𝑎𝑃2⁄ and 𝑎𝑆2⁄) are primarily adjusted to achieve the fit between the observed and theoretical dispersion curves. In the depth range ~20-30 km, the 𝜂𝐾 is generally found to be 𝜂𝐾<1.0 changing in the range 0.94≤𝜂𝐾≤0.95, which is consistent with the PREM and the expression 𝑎𝑃2⁄=0.5𝑎𝑆2⁄ appears to be valid for the mid-to-lower crust beneath the studied region. In particular, the Rayleigh group velocities require the setting 𝜂𝐾<1.0 in the mid-to-lower crustal depth range.
HYDROCARBON EXPLORATION AND RESOURCE OPTIMIZATION THROUGH SEQUENCE STRATIGRAPHIC ANALYSIS AND DATA AUGMENTATION OF HIGH FIELD OFFSHORE WESTERN NIGER DELTA
Authors: Samuel Adebayo Sunday , Wasiu Osisanya Olajuwon , C. Fidelia Ighrakpata , Abel Ibitoye Taiwo , Sanmi Fagbemigun, Tokunbo
Published: April 2024

Efficient hydrocarbon exploration and resource optimization are vital for sustainable oil reservoir development. This necessitates a profound grasp of source rocks and trapping systems, typically gleaned from subsurface seismic studies followed by drilling for resource extraction. Additionally, interpreting stratigraphic data is critical for identifying productive reservoirs, distinguishing low-yield from high-yield sands, and reducing exploration risks and costs. Our study aims to enhance subsurface structure and stratigraphic understanding, specifically identifying potential hydrocarbon reservoirs, source rock formations, sealing structures, stratigraphic traps, and depositional environments. In the Niger Delta region, we seek to reduce operational costs and exploration risks related to oil and gas exploration. In the “high field” offshore Niger Delta, our research combines well logs and seismic data to define hydrocarbon trapping potential, stratigraphic profiles, and depositional settings. The stratigraphic sequence is systematically divided into system tracts by five sequence boundaries, maximum flooding surfaces, and transgressive surfaces that reveal different depositional environments. This integrated approach pinpoints two prospective areas, P1 and P2, as potential hydrocarbon reservoirs. The analysis of seismic data and well logs is highly effective in identifying subsurface structures conducive to hydrocarbon accumulation within the stratigraphic framework. Furthermore, the alternation of lowstand, transgressive, and highstand system tracts suggests favorable conditions for source rocks, sealing formations, and reservoirs, improving the prospects for successful hydrocarbon exploration and resource optimization.
PALYNOFACIES AND SEDIMENTOLOGY OF HB-001 WELL
Authors: Olatunji Olubusayo Akinyele
Published: April 2024

The palynofacies and sedimentological analyses of the sedimentary succession of the HB-001 well were carried out to establish biozones and the palaeodepositional environment. Ninety-six samples of ditch cutting within intervals of depth of 1250 -4011 m were analyzed. Most of the previous researchers established biozones with alpha-numeric method. The use of palynomorphs and palynofacies analyses to delineate paleoenvironment of deposition has been applied to a limited extent in the Niger Delta Basin in Nigeria. The analysis produced fairly diverse and moderately abundant pollen and spores with high recoveries of palynomaceral 1 and 2 and minimal retrievals of palynomaceral 3 and 4. The textural, lithologic, as well as wireline log data point out that the whole studied interval in the HB-001 well fit in to the Agbada Formation. Late Miocene age was assigned on the bases of the analysis of stratigraphic age range of indicative palynological markers for example Zonocostites ramonae, Verrucatosporites sp., Laevigatosporites sp., Monoporites annulatus, Pachydermites diederixi and Psila,tricolporites crassus. Two assemblage zones were established in the well with the use of the International Stratigraphic Guide for the biozones establishment. The two recognized palynostratigraphic zones are Cyperaceaepollis sp. – Nympheaepollis clarus, and Stereisporites sp Zones. Lower delta plain, pro-delta and delta front depositional environments have been deciphered for well with the use of the palynofacies association, palyno-ecological groupings, and sedimentological features. Bodies of sand that signify sub-environments inside these settings are deposited in sequences. Every sequence begins with a transgressive stage, after that considerable regression. The palyno-ecological groupings of the retrieved palynomorph taxa revealed that the well intervals studied were deposited under alternating wet and dry paleoclimatic settings. The zones of dry climate presented high account of montane and savannah taxa and low incidence of rainforest, mangrove and freshwater taxa. The zones of wet climate signified increased account of rainforest, freshwater and mangrove taxa and lower incidences of montane and savannah taxa.
International legal mechanism for the development of urbanized territories: causes, evolution, consequences (beginning)
Authors: Sergiienko L.
Published: April 2024

This publication identifies the consequences of urbanization and substantiates their impact on the safety of urbanized territories and the life safety of residents of such territories. It is also determined that the consequences of urbanization pose a threat to the national security system, the security of the urbanized territory and the life safety of residents of such territories. In turn, the security of the urbanized territory is a component of national security, and the safety of life of citizens is a key element of both the security system of the urbanized territory and the national security system as a whole. The system of public administration in general and the processes of forming and implementing state policy in particular, focusing on the needs, interests, rights and freedoms of citizens, their health and life as the highest social value, in the context of developing a strategy to overcome the negative consequences of urbanization, ensuring the development and security of urbanized territories, it is necessary to take into account the features of the constituent elements of the national security system and the security of the urbanized territory.
Doctrine of provision of public services in the system of administrative law of european countries
Authors: Dragan I. , Shkapin D.
Published: April 2024

The article analyzes the experience of European countries regarding the formation of the doctrine of the provision of public services in the system of administrative law and the identification of its features. It is shown that the legal institution of public services in Ukraine is quite new. At the same time, there is no doubt that similar innovations in this field and their regulatory consolidation and implementation should take into account the experience of foreign countries, in particular those in which this institute was formed and has been functioning for a long time. European jurisprudence has offered various interpretations of the doctrine of public services. In particular, different approaches are offered by the German and French schools of law, which are considered to be competitors. Therefore, it appears important to conduct a consistent comparative legal analysis of the category of public services, their types, forms and subjects of their provision, the system of regulatory control. This is due in particular to the impossibility of forming new administrative and legal structures and institutions without an appropriate analysis of the experience of the process of Europeanization of administrative law.
It was established that the representatives of the French legal school reached a consensus that the national administrative law of France consists of several large blocks, and the law in the field of public service, from the position of the structure of the industry, belongs to special administrative law and, together with the issues of legal entities of public law and administrative justice, constitutes one from the basic postulates of all French administrative law. The French doctrine of public service has gained wide popularity and has been implemented in many countries of the continental legal system.
In the German doctrine, public service is considered as a publicly significant activity of state administration bodies and other involved subjects of relevant activity within the concept of good governance. Adoption of administrative acts in the process of carrying out administrative procedures in accordance with German legislation is not formally considered from the standpoint of public services, but in its essence it is completely included in such a construction. The category of "public services" is not specifically defined in the German doctrine, but it covers both positive public administration and law enforcement activities of public administration entities regarding the issuance of individual administrative acts in the interests of private individuals. Legal relations between authorities and citizens are traditionally referred to as «external administrative law» or «formal administrative law».
IDENTIFYING BARRIERS IN PUBLIC SECTOR DIGITAL TRANSFORMATION: A CASE STUDY IN INDONESIA CITY OFFICE FOR POPULATION ADMINISTRATION AND CIVIL REGISTRATION (COPACR) CONTEXT
Authors: Sonhaji Agus Imam , Anityasari Maria , ER Mahendrawathi
Published: April 2024

Purpose: This paper presents a case study of the Surabaya City Office for Population Administration and Civil Registration (COPACR), which is currently undergoing digitization and digital transformation across all its civil registration service lines. This research identifies internal and external barriers relevant to digital transformation in the context of Surabaya COPACR.
 
Theoretical Framework: This study combines qualitative and quantitative methods to identify internal and external barriers relevant to the implementation of digital transformation in the COPACR sector. The barriers are validated through Focus Group Discussions (FGDs) applying the Analytic Hierarchy Process (AHP) and Expert Choice tools. Priority barriers are determined based on the highest relevance weight values from the perspectives of Top Management and Field Officers.
 
Design/Methodology/Approach: This research adopts an action research methodology, leveraging the researcher's position within the system to directly intervene and facilitate change. A mixed-method approach is employed, combining qualitative and quantitative methodologies. Twenty literature sources are utilized to identify internal and external barriers within public sectors to adopt digital transformation. A total of 63 barriers (33 internal and 30 external) are categorized and their relevance tested through Focus Group Discussions (FGDs). Barrier priorities are selected using the Analytic Hierarchy Process (AHP) method and expert choice tools.
 
Findings: The Surabaya COPACR in developing countries exhibits characteristics such as low employee motivation, inadequate officer competency, rigid bureaucratic structures, and limited innovation. With these conditions, the internal priorities for adopting digital transformation in Surabaya COPACR include lack of political support, traditional bureaucracy, organizational complexity, and lack of competency. External barriers include inflexible regulations, bureaucracy, lack of data standardization, and inadequate funding allocation.
 
Research, Practical & Social Implications: This research contributes theoretical insights into internal and external priority barriers that need to be considered to adopt digital transformation in the COPACR context of developing countries. The identified barriers can serve as references for public sectors with similar organizational characteristics in developing countries to design strategies for adopting digital transformation effectively.
 
Originality/Value: This study identifies internal and external barriers to digital transformation in the Surabaya COPACR context, involving assessments from both strategic (Top Management) and technical (Field Officer) perspectives.
A UBIQUIDADE ONTOLÓGICA DOS SERTÕES: GEOLITERATURAS E DESAFIOS DIDÁTICO-PEDAGÓGICOS
Authors: Araújo Gilvan Charles Cerqueira de , Silva Valéria Cristina Pereira da , Xavier Léon Denis Ferreira
Published: April 2024

O sertão é um múltiplo geográfico, desafiando definições e limites para sua conceituação, análise e proposições de compreensão de seus sentidos. Ontologicamente o sertão, pensado do ponto de vista ôntico, possui essências diferenciadas, porque sua própria natureza se diversifica do ponto de vista empírico também se multiplica. Uma das maiores formas de expressão desta diversidade do sertão em sua empiricidade e ideação está na literatura que, ao contribuir para problematizações geoliterárias há diferenciadas e ricas expressões do sertão entendido como interior territorial do Brasil. Na geoliteratura há modos de vida, culturas, paisagens simbólicas e naturais, conflitos e demais aspectos do sertão que podem ser incorporados em reflexões e proposições didático-pedagógicas da Geografia Escolar, de modo não apenas a expandir como, também, inserir a complexidade ôntico-ontológica da ubiquidade do sertão em conteúdos, temas e experiências de aprendizagem sobre os sertões brasileiros.
MODELS OF UNIVERSITY AUTONOMY IN EU COUNTRIES: COMPARATIVE ANALYSIS
Authors: Bulvinska Oksana
Published: April 2024

The article is devoted to justifying the classification of models of university autonomy based on their comparative analysis. It is emphasized that education functions as a systemic element in the social structure, which is embedded in connections and coordination with other social actors, in particular with state power and the market. It is noted that university autonomy is the authority of a higher education institution to determine its own goals and programs, as well as the means to achieve them; autonomy, independence and responsibility in making decisions regarding one's own development. It is emphasized that the degree of university autonomy is correlated with the country's political and administrative system, economic development and cultural traditions, historical and ideological context, axiological orientation of society, traditional role of higher education institutions. On the basis of a comparative analysis of common features and specifics of models of university autonomy, the author's classification is substantiated depending on three fundamental factors: relations between state authorities and universities; internal organizational and management structure of universities; as well as generalization of cases of certain national systems of higher education or groups of countries united by historical and regional features. It is emphasized that the most relevant is the classification of models of university autonomy, which takes into account not only the relationship between state control and university autonomy and the peculiarities of intra-university management, but also the administrative and financial system of the state, financial support of higher education, etc.
IMPLEMENTATION OF ENTREPRENEURSHIP IDEAS IN EDUCATIONAL PROGRAMS FOR THE TRAINING OF SPECIALISTS: THE EUROPEAN EXPERIENCE
Authors: Tadeush Olena
Published: April 2024

The article analyzes the experience of implementing entrepreneurship ideas in the content of educational programs for training specialists in the countries of the European Union (Austria, Finland, France, Sweden, Spain, Croatia, Italy, Latvia) at the pan-European, national and institutional levels. The pan-European level provides for the orientation of EU educational policy regarding the development of regulatory documents and recommendations on initiatives that regulate the creation of a pan-European structure to ensure and coordinate the goals and results of entrepreneurial education at the EU level. The national level includes a number of strategies, plans, actions, and legislative acts developed by state bodies to adapt the process of entrepreneurship education in a specific country and involves the design of strategic and target orientations and the implementation of organizational measures that activate the motivation of the country's citizens for self-realization in the entrepreneurial vector of professional activity. The institutional level is revealed through the integration of extroverted and introverted directions of entrepreneurial education in higher educational institutions of EU countries, which determine strategic, organizational, and pedagogical decisions and actions in higher educational institutions regarding the introduction of entrepreneurship ideas into the content of specialist training through a productive partnership between: the state, educational institutions and business institutions.

The main problems of the implementation of entrepreneurship ideas in the content of educational programs for the training of specialists in the EU countries are highlighted: the lack of conceptual and methodological foundations for the formation of entrepreneurial competence of specialists in various industries; lack of motivation of teachers regarding the implementation of entrepreneurship ideas in educational courses based on an interdisciplinary approach; underfunding of innovative laboratories in higher education institutions of EU member states; unsettled mechanisms of partnership relations between education providers, business institutions and other interested parties at the international level.
Görüntü İşleme Yöntemi ile Geri Esnemenin Otomatik Ölçümü: Deneysel Bir Yaklaşım
Authors: Kılıç Süleyman , Demirdöğen Mehmet Fatih
Published: April 2024

Bu araştırma, bükülmüş numunelerin fotoğrafları üzerinden görüntü işleme tekniği kullanılarak geri esneme açısının otomatik olarak ölçülmesine odaklanmaktadır. Geleneksel evrensel açı ölçerlerin kullanımındaki kullanıcı hatalarından kaynaklanan değişkenlik sorunlarına alternatif olabilecek bir program geliştirilmiştir. Çalışmada, farklı açılarda bükme işlemine tabi tutulan numuneler üzerinde evrensel açı ölçer ile geri esneme ölçümleri gerçekleştirilmiştir. Ayrıca, geliştirilen program ile numunelerin fotoğrafları aracılığıyla geri esneme değerleri otomatik olarak elde edilmiştir. Bu süreçte, fotoğraf filtreleme yöntemleri ve kenar tespit yöntemleri gibi görüntü işleme tekniklerinin etkisi incelenmiştir. Geliştirilen program, orijinal fotoğrafların yanı sıra filtrelenmiş fotoğraflar üzerinde geri esneme açılarını başarıyla tespit etmiştir. Elde edilen sonuçlar, yüksek doğrulukta ölçümler elde edildiğini göstermektedir. Bu, görüntü işleme tekniklerinin geri esneme açısı ölçümlerinde güvenilir bir alternatif olarak kullanılabileceğini vurgulamaktadır.
Energy management system using artificial fish swarm speed optimized fuzzy controller based on a deep recurrent neural learning classifie
Authors: Jayanthi G. , Balachander K.
Published: April 2024

Hybrid Electric Vehicles (HEVs) must ensure power demand through minimum fuel consumption and a control strategy. Existing control methods were easy to implement, showing quick response and good performance. Power demand is linked to numerous factors such as level of social and economic expansion, industrialization, urbanization, and technological growth. However, power demand problems like higher energy waste, poor quality, less accuracy, lack of robustness, and limited operating range were not reduced in existing controller  methods. This paper presents an Artificial Fish Swarm Speed Optimization Fuzzy PID Controller (AFSSOF-PIDC). AFSSOFPIDC-DRNLC includes different layers in drive train management. Initially, different vehicle data is considered in the input layer and then sent to hidden layer 1. Fitness is identified by improved Artificial Fish Swarm Speed Optimization to find optimal values that minimize the power demand, and then send it toward hidden layer 2. A Mamdani Fuzzy PID Controller is used in hidden layer 2. If the fitness value of the vehicle information is less than the threshold value, fuel consumption is minimized in the HEV. Otherwise, consumption of fuel is not minimized in the HEV. Finally, energy management is achieved through minimal power demand. The results indicate that the performance of the proposed AFSSOFPIDC-DRNLC technique minimizes fuel consumption by increasing the performance of the controller as compared with existing methods.
Studi Kasus Gizi Buruk Dengan Tuberkulosis Paru Pada Anak Usia 10 Bulan Di Desa Teumpok Tungku Puskesmas Meurah Mulia Tahun 2023
Authors: Br Tarigan Ayu Permata Sari , Ami Ghisca Chairiyah , Zara Noviana
Published: April 2024

Gizi buruk adalah kondisi kekurangan energi dan protein tingkat berat akibat kurang mengkonsumsi makanan yang bergizi dan menderita sakit yang begitu lama. Gizi buruk umumnya terjadi pada anak usia di bawah lima tahun (Balita) yang disebabkan oleh banyak faktor. Balita gizi buruk sangat rentan terkena penyakit infeksi, dimana lebih besar risiko untuk berkembangnya penyakit TB yang lebih parah terutama usia dibawah 2 tahun. Seringkali gizi buruk disebabkan oleh penyakit infeksi, sehingga harus dilakukan penanganan secara cepat,tepat, dan terintegrasi antara rawat inap dan rawat jalan. Data Riset Kesehatan Dasar tahun 2018 menunjukkan bahwa terdapat 10,2% balita gizi kurang (wasting) dan 3,5% diantaranya gizi buruk (severe wasting). Kondisi ini menunjukkan masalah gizi buruk dan gizi kurang di Indonesia menurut kriteria WHO masih menjadi masalah kesehatan masyarakat dengan kategori ”tinggi”. Penelitian ini merupakan sebuah studi kasus terhadap seorang anak balita An. M berusia 10 bulan di Desa Teumpok Tungku tahun 2023. Studi kasus ini dilakukan dengan cara observasi pasien melalui pendekatan home visite. Diagnosis gizi buruk ditegakkan berdasarkan anamnesa dan pemeriksaan fisik. Setelah diagnosis ditegakkan pasien diberikan tatalaksana secara komprehensif. Dilakukan edukasi dan pemantauan pada anak dan keluarga dengan hasil perbaikan di akhir kunjungan. Pada kunjungan pertama didapatkan BB pasien 5,8 kg, kunjungan kedua 5,9 kg, kunjungan ketiga 6,1 kg. Kesimpulan studi kasus ini didapatkan bahwa terdapat beberapa faktor yang mempengaruhi kejadian gizi buruk pada anak tersebut, diantaranya adalah tingkat pengetahuan orangtua, ekonomi keluarga, lingkungan rumah, penyakit infeksi dan terkait pelayanan kesehatan seperti kurangnya promosi kesehatan.
Hubungan pola makan dan status gizi dengan keteraturan menstruasi pada mahasiswi Prodi Kedokteran Fakultas Kedokteran Universitas Malikussaleh
Authors: Rahmi Nita , Iskandar Iskandar , Mauliza Mauliza
Published: April 2024

Menstruasi merupakan proses fisiologis yang dialami setiap wanita pada usia reproduktif. Proses fisiologis ini dipengaruhi beberapa faktor yang dapat menimbulkan gangguan menstruasi. Faktor seperti pola makan dapat berdampak pada asupan nutrisi makro maupun mikro seseorang yang kemudian mampu mempengaruhi fungsi organ reproduksi. Timbulnya gangguan menstruasi dapat menurunkan kualitas hidup seseorang, terutama kemampuan belajar pada mahasiswi. Banyaknya lemak dalam tubuh dapat menyebabkan memanjangnya siklus menstruasi. Penelitian ini bertujuan untuk melihat adanya Hubungan Pola Makan Dan Status Gizi Dengan Keteraturan Menstruasi Pada Mahasiswi Prodi Kedokteran Fakultas Kedokteran Universitas Malikussaleh. Jenis penelitian ini merupakan penelitian analitik observasional dengan menggunakan rancangan cross sectional. Pada penelitian ini digunakan teknik probability sampling dengan stratified random sampling untuk teknik pengambilan sampel. Besar sampel dalam penelitian ini sebanyak 185 responden yang telah memenuhi kriteria inkusi dan eklusi. Data yang digunakan dalam penelitian ini adalah data primer yang didapatkan melalui penyebaran kuesioner kepada responden. Analisis data pada penelitian ini menggunakan Chi Square. Hasil dari penelitian ini adalah didapatkan asupan lemak memenuhi sebanyak 129 responden (69,7%), sedangkan yang tidak memenuhi sebanyak 56 responden (30,3%). Asupan protein kategori memenuhi standar 84,9% dan yang tidak memenuhi standar 15,1%. Sedangkan asupan serat yang memenuhi standar sebanyak 82,2% dan yang tidak memenuhi standar sebanyak 17,8%. Status gizi responden dengan kategori kurus sebanyak 21 mahasiswi (11,4%), kategori normal sebanyak 105 mahasiswi (56,8%) dan kategori gemuk sebanyak 59 mahasiswi (31,9%). siklus menstruasi responden dengan siklus menstruasi yang teratur sebanyak 136 orang (73,5%) dan siklus menstruasi yang tidak teratur sebanyak 49 orang (26,5%). Kesimpulan penelitian ini: Terdapat hubungan antara pola makan dan status gizi dnegan keteraturan menstruasi.
Upaya Pengelolaan Hipertensi Dengan Pendekatan Pelayanan Dokter Keluarga
Authors: Putri Narisha Amelia , Zara Noviana
Published: April 2024

Pasein perempuan berusia 62 tahun datang ke Puskesmas Kuta Makmur dengan keluhan sakit kepala yang semakin hari semakin memberat terutama dalam 1 minggu terakhir. Sakit kepala terkadang dirasakan seperti terikat dan tertimpa beban berat. Pasien juga mengeluhkan adanya nyeri dan rasa kaku pada bagian leher belakang. Dari hasil anamnesis didapatkan keluhan sudah dirasakan pasien sejak tahun 2002. Pasien sudah sering datang dan berobat ke Puskesmas. Pada pemeriksaan fisik didapatkan TD 160/110 mmHg, RR 21 x/menit, HR 81 x/menit, IMT 20,44 kg/m2.  Data primer diperoleh melalui anamnesis dan pemeriksaan fisik dengan melakukan kunjungan rumah, mengisi family folder, dan mengisi berkas pasien. Penilaian dilakukan berdasarkan diagnosis holistik awal, proses, dan akhir kunjungan secara kuantitatif dan kualitatif. Intervensi yang dilakukan berupa upaya promotif, preventif, kuratif, rehabilitative dan upaya psikososial
Front Matter
Authors: Jurnal Veteriner dan Biomedis Admin
Published: April 2024

Front Matter