bluuebunny/crossref_metadata_2025_split huggingface dataset:
Saltkrake
Authors: Gramaglia Christelle 
Published: March 2021

Cet article traite des sols pollués : de la présence, dispersion et intrusion de résidus miniers issus de pratiques extractives passées, jusque dans les villages, maisons et corps des habitants de la Sierra Minera de Carthagène (Espagne). Inspiré par la théorie de l’acteur-réseau, les science studies féministes et le néomatérialisme, il défend l’idée que la contamination a été facilitée par une façon de penser et gérer ces résidus, ignorante de leur « vitalité ». Parallèlement, il retrace la trajectoire du scientifique lanceur d’alerte José Matias Peňas Castejòn, arguant que ses attachements et sa pratique scientifique originale l’ont aidé à comprendre des phénomènes traités auparavant de manière restrictivement technique et hors-sol. Nous montrons qu’il est parvenu, malgré les difficultés, à produire des savoirs sur les pollutions situés, attentifs aux devenirs toxiques des résidus, mais également attentionnés vis-à-vis des populations. Nous nous posons la question de savoir comment favoriser les pratiques scientifiques plus précautionneuses vis-à-vis des riverains exposés aux risques de contamination.
Simulation of geoelectrical responses of structures buried in freshwater and brackish water environments
Authors: Akinrinade Opeyemi Joshua , Oginni Tolulope Emmanuel , Baguya Elnalee Buyagao 
Published: March 2021

Marine geoelectrical simulation offers the opportunity to predict matrix type, interstitial fluid and geometry of buried structures. In this research, simulation of geoelectrical responses over buried structures in freshwater and brackish water environments were tested. A model tank made of acrylic and housed within an iron frame was built for the experiment. The tank was filled with water and sieved sediment having grain sizes ≤1.18 mm, corresponding to very coarse sand to colloid. Four models were designed namely freshwater static model (FSM), brackish water static model (BSM), freshwater model with buried structures (FMBS), and brackish water model with buried structures (BMBS). A bamboo pipe, metal pipe and granite block were buried in the FMBS and BMBS. Physico-chemical parameters of the water which includes temperature (22.74 – 26.06 °C), salinity (0.07 – 15.72 psu), conductivity (153 – 25,420 μS/cm and resistivity (5.6 x 103 – 6.6 x 103 Ω-cm) were measured. Dipole-dipole array using inter-electrode separation (a) of 5 cm and 1≤n≤5 was adopted. Resistivity measurements obtained were processed and inverted using non-linear least-square optimization technique. We present obtained results as contoured 2D resistivity structures. FSM and FMBS were characterized by relatively high resistivity values compared with the BSM and BMBS. The buried materials were effectively resolved in the freshwater models, compared to the brackish water model due to higher contrast in resistivity between the material and saturating fluid. The bamboo pipe was not effectively delineated in the brackish water medium, as a result of the low resistivity contrast which exists between the medium and the material. Zones with high compaction are characterized by high resistivity values, while concealed channel structures were characterized by low compaction. Estimated depth were exact for the freshwater models but was over estimated by `∼12.5% in the brackish water models. Marine electrical resistivity method shows great potential in mapping structures buried in medium with high contrasting resistivity values, and sedimentary structures with varying degree ofcompaction.
Valuation of hydraulic fracturing potentials of organic-rich shales from the Anambra basin using rock mechanical properties from wireline logs
Authors: Akaha-Tse Homa Viola , Oti Michael , Abrakasa Selegha , Ugwueze Charles Ugwu 
Published: March 2021

This study was carried out to determine the rock mechanical properties relevant for hydrocarbon exploration and production by hydraulic fracturing of organic rich shale formations in Anambra basin. Shale samples and wireline logs were analysed to determine the petrophysical, elastic, strength and in-situ properties necessary for the design of a hydraulic fracturing programme for the exploitation of the shales. The results obtained indicated shale failure in shear and barreling under triaxial test conditions. The average effective porosity of 0.06 and permeability of the order of 10-1 to 101 millidarcies showed the imperative for induced fracturing to assure fluid flow. Average Young’s modulus and Poisson’s ratio of about 2.06 and 0.20 respectively imply that the rocks are favourable for the formation and propagation of fractures during hydraulic fracking. The minimum horizontal stress, which determines the direction of formation and growth of artificially induced hydraulic fractures varies from wellto-well, averaging between 6802.62 to 32790.58 psi. The order of variation of the in-situ stresses is maximum horizontal stress>vertical stress>minimum horizontal stress which implies a reverse fault fracture regime. The study predicts that the sweet spots for the exploration and development of the shale-gas are those sections of the shale formations that exhibit high Young’s modulus, low Poisson’s ratio, and high brittleness. The in-situ stresses required for artificially induced fractures which provide pore space for shale gas accumulation and expulsion are adequate. The shales possess suitable mechanical properties to fracture during hydraulic fracturing. Application of these results will enhance the potentials of the onshore Anambra basin as a reliable component in increasing Nigeria’s gas reserves, for the improvement of the nation’s economy and energy security.
Key Words: Hydraulic Fracturing, Organic-rich Shales, Rock Mechanical Properties, Petrophysical Properties, Anambra Basin
Heavy metal levels in cassava flour sold in Okura, Ejule and Ojapata of kogi state, Nigeria
Authors: Taiye Olubiyo Gloria , Ohunene Yakubu Anita , Kehinde Olubiyo Comfort 
Published: March 2021

Cassava (Manihot esculenta) is a major source of carbohydrate and a staple food cultivated in Nigeria especially in Kogi State. Determination of heavy metals in cassava flour from major markets:(Okura ,Ejule and Ojapata) in Kogi East was done to ascertain the quality of cassava flour and its human exposure path.Lead, cadmium, iron and zinc contents were determined using Atomic Absorption Spectrophotometer (AAS).The results were analysed using Analysis of Variance (ANOVA), Duncan Multiple Range Test (DMRT) and Independent Sample t-test. Zn concentration in Ejule (Control) was as low as 0.002±0.000a . Pd,Cd,Fe, and Zn screened were far below the WHO guideline values or permissible limit of metal in food.This implies that the metal toxicants present in the cassava flour is in such low concentrations that render the food non-toxic and edible.
Keywords: Heavy metals; pollution; cassava flour; human exposure.
Seismic-to-well tie of a field of the Nigerian Delta
Authors: Inichinbia S. , Ahmed A.L. 
Published: March 2021

This paper presents a rigorous but pragmatic and data driven approach to the science of making seismic-to-well ties. This pragmatic approach is consistent with the interpreter’s desire to correlate geology to seismic information by the use of the convolution model, together with least squares matching techniques and statistical measures of fit and accuracy to match the seismic data to the well data. Three wells available on the field provided a chance to estimate the wavelet (both in terms of shape and timing) directly from the seismic and also to ascertain the level of confidence that should be placed in the wavelet. The reflections were interpreted clearly as hard sand at H1000 and soft sand at H4000. A synthetic seismogram was constructed and matched to a real seismic trace and features from the well are correlated to the seismic data. The prime concept in constructing the synthetic is the convolution model, which represents a seismic reflection signal as a sequence of interfering reflection pulses of different amplitudes and polarity but all of the same shape. This pulse shape is the seismic wavelet which is formally, the reflection waveform returned by an isolated reflector of unit strength at the target depth. The wavelets are near zero phase. The goal and the idea behind these seismic-to-well ties was to obtain information on the sediments, calibration of seismic processing parameters, correlation of formation tops and seismic reflectors, and the derivation of a wavelet for seismic inversion among others. Three seismic-to-well ties were done using three partial angle stacks and basically two formation tops were correlated.
Keywords: seismic, well logs, tie, synthetics, angle stacks, correlation,
PARTISIPASI ANGGOTA DALAM MENGEMBANGKAN CREDIT UNION
Authors: Vuspitasari Benedhikta Kikky , Hapsari Veneranda Rini , Ewid Angelus 
Published: March 2021

Credit Union merupakan satu lembaga keuangan dibidang simpan pinjam atau biasanya dikenal sebagai koperasi simpan pinjam, dalam kegiatan usahanya, yaitu menghimpun dana dari anggota koperasi dengan menciptakan sumber kredit dari dan untuk anggota dengan bunga yang relatif rendah. Tujuan penelitian ini adalah memberi gambaran bagiamana partisipasi anggota membantu mengembangkan Credit Union. Metode penelitian menggunakan metode penelitian kualitatif bersifat deskriptif, Metode pengumpulan data yaitu melalui penelitian pustaka mencari jurnal, buku-buku serta sumber tertulis dan pengamatan di lapangan dilakukan dengan metode wawancara yaitu melakukan wawancara kepada narasumber yang menguasai materi-materi yang diperlukan dalam penelitian ini. Dari hasil yang diperoleh disimpulkan bahwa semakin besar peran Credit Union dalam memperbaiki kesejahteraan anggotanya, semakin tinggi partisipasi mereka dalam kegiatan koperasi. Bahwa kunci Partisipasi anggota dalam mengembangkan Credit Union adalah kepercayaan dari para anggota tersebut, manajemen dan pelayanan yang baik.
ANALISIS PENERAPAN E-COMMERCE DENGAN SISTEM DROPSHIPPING TERHADAP KEPERCAYAAN, MINAT DAN KEPUTUSAN PEMBELIAN KONSUMEN
Authors: Paransa Stanley , Sadewo Yosua Damas 
Published: March 2021

Dengan berkembang pesatnya e-commerce di Indonesia berdampak pada potensi peningkatan ekonomi di Indonesia, salah satunya e-commerce yang menggunakan sistem dropshipping. Tujuan dari penelitian ini adalah untuk mengetahui besarnya pengaruh penerapan e-commerce dengan sistem dropshipping terhadap kepercayaan, minat dan keputusan pembelian konsumen. Metode penelitian yang digunakan adalah metode penelitian kuantitatif dengan jumlah responden sebanyak 30 orang yang pernah melakukan transaksi pembelian khususnya di TENY ONLINEshop yang menggunakan sistem dropshipping. Tehnik analisa data menggunakan analisa regresi linear sederhana. Dari hasil analisa data yang didapat, telah menjawab hipotesis bahwa adanya pengaruh penerapan e-commerce yang berbasis dropshipping terhadap kepercayaan konsumen sebesaar 14,1%, minat konsumen sebesar 18%, dan untuk keputusan pembelian sebesar 24,8%.
Development and validation of perceived sexual resentment scale for women (PSRS-W)
Authors: Syeda Ayat-e-Zainab Ali  , Wardah Ishfaq  , Bushra Hassan  , Nazia Iqbal  
Published: March 2021

Objective: To develop a valid and reliable scale to asses perceived sexual resentment among married women.
Method: The cross-sectional validation study was conducted from September 2018 to July 2019 at the International Islamic University, Islamabad, Pakistan, and had three phases. Phase I comprised initial generation/selection of items regarding sexual resentment among married women. Phase II comprised pilot testing of the perceived sexual resentment scale for women items before applying the scale on the actual sample. Phase III determined convergent validity by estimating correlation of the newly developed scale with the Sexual Coercion in Intimate Relationship Scale, and its divergent validity by finding correlation with the Satisfaction with Life Scale. Data was analysed using SPSS 23.
Results: The pilot study, done on 20 married women, established the internal consistency of the newly developed scale (?=0.82). Overall, three factors emerged following factor analysis. The scale had 29 items and reliability analysis of the entire scale indicated adequate internal consistency (?=0.93). The convergent validity of the scale and the Sexual Coercion in Intimate Relationship Scale was positive (p<0.001), and the correlation with the Satisfaction with Life Scale was negative (p<0.01), indicating that the newly-developed instrument had a good convergent and divergent validity.
Conclusion: The Perceived Sexual Resentment Scale for Women was found to be a precise and concise 29-item self-reporting tool developed to assess sexual dislikes and displeasures among married women.
Continuous....
Sustainable Harnessing of Hydropower Potential in Arunachal Pradesh
Authors: Sarma Atul , Nayak Sushanta Kumar 
Published: March 2021

Abstract
Hydropower potential of Arunachal Pradesh is enormous. The state is basically tribal dominated. The life style of the people is fast changing. The resource base of the state is not sufficient to meet the aspiration of the people. In that context hydropower has come as a boon to the economy of the state. Nearly 133 Memorandum of Understanding were signed between the power developers and the Government during last few years to harness power. It has resulted in public protest and stoppage of many projects. In that context the present attempt has analysed the different dimensions of the issues and suggested few measures such that power potential is sustainably harnessed for a better future.
Corrosion of High-Strength Carbon Steels in Siderite Supersaturated Water at Near Neutral pH
Authors: Campos Tatiane , Seiersten Marion , Palencsár Simona , Dugstad Arne , Ponciano Gomes José A. 
Published: March 2021

When carbon steel corrodes in anaerobic carbonated water, and the steel surface area to liquid volume is high, the concentration of ferrous and bicarbonate ions increases rapidly even though the corrosion rate is low. Such solutions with high bicarbonate concentration and a near neutral pH are believed to induce stress corrosion cracking of high-strength carbon steels. This work was conducted to investigate the solid precipitation in siderite supersaturated solutions. It was also an objective to measure the corrosion rate of high-strength carbon steel in solutions with high bicarbonate concentration at pH close to neutral. Preloading the solutions with ferrous ions and bicarbonate made it possible to measure desupersaturation and corrosion rate as function of time. The initial siderite supersaturation was more than 1,000 in the desupersaturation experiments. Despite this, the nucleation and growth of siderite was so slow that the solutions remained supersaturated for 100 h to 500 h at 10°C to 25°C. The ferrous ion concentration decreased from 1,200 mg/kg to 100 mg/kg in less than 24 h at 40°C, but did not reach equilibrium within 250 h. The precipitate was siderite at 5°C to 25°C. At 40°C, the solid was a mixture of siderite and chuckanovite in low salinity water and siderite with dissolved Ca2+ in artificial seawater. The corrosion rate of carbon steel at pH 6.7 to 7.2 at 25°C decreased to less than 0.01 mm/y in 5 h. Siderite precipitated and grew to a thin protective layer at the steel surface. Even though the solutions were highly supersaturated with respect to siderite throughout the experiments, the carbonate layer at the steel surface did not grow to more 5 μm thickness during 250 h to 400 h. The investigated steels were armor wires for flexible pipes. They have an oxide layer at the surface which is an inherent result of the manufacturing process. The presence of these oxides did not impede the formation of protective siderite layer.
Identification of key genes related to heart failure by analysis of expression profiles
Authors: Wang Che , Li Qingmin , Yang Honghui , Gao Chuanyu , Du Qiubo , Zhang Caili , Zhu Lijie , Li Qingman 
Published: March 2021

IntroductionTo elucidate the candidate biomarkers involved in the patho�genesis process of heart failure (HF) via analysis of differentially expressed
genes (DEGs) of the dataset from the Gene Expression Omnibus (GEO).Material and methodsThe GSE76701 gene expression profiles regarding
the HF and control subjects were respectively analysed. Briefly, DEGs were
firstly identified and subjected to Cytoscape plug-in ClueGO + CluePedia and
Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses.
A protein-protein interaction (PPI) network was then built to analyse the in�teraction between DEGs, followed by the construction of an interaction net�work by combining with hub genes with the targeted miRNA genes of DEGs
to identify the key molecules of HF. In addition, potential drugs targeting key
DEGs were sought using the drug-gene interaction database (DGIdb), and
a drug-mRNA-miRNA interaction network was also constructed.ResultsA total of 489 DEGs were verified between HF and control, which
mainly enriched in type I interferon and leukocyte migration according to
molecular function. Significantly increased levels of GAPDH, GALM1, MMP9,
CCL5, and GNAL2 were found in the HF setting and were identified as
the hub genes based on the PPI network. Furthermore, according to the
drug-mRNA-miRNA network, FCGR2B, CCND1, and NF-κb, as well as corre�sponding miRNA-605-5p, miRNA-147a, and miRNA-671-5p were identified
as the drug targets of HF.ConclusionsThe hub genes GAPDH, GALM1, MMP9, CCL5, and GNAL2 were
significantly increased in HF. miRNA-605-5p, miRNA-147a, and miRNA-671-5p
were predicted as the drug target-interacted gene-miRNA of HF.
The eccentric mechanotransduction, neuro-muscular transmission, and structural reversibility of muscle fatty infiltration. An experimental advanced disuse muscle-wasting model of rabbit supraspinatus
Authors: Fabiś Jarosław , Danilewicz Marian , Niedzielski Kryspin , Waszczykowski Michał , Fabiś-Strobin Anna , Bogucki Andrzej 
Published: March 2021

IntroductionFull-thickness rotator cuff tear is present in almost 50% of
patients over age 65 years, and its degree is known to be a good predictor
of the severity of muscle-wasting (MW) sarcopaenia, also known as fatty
degeneration (FD). A FD CT grade > 2° is recognized as a borderline of its reversibility. A disuse model of supraspinatus FD (grade 2) in rabbits provides
clinically relevant data. Therefore, the present study evaluates the correlation between eccentric mechanotransduction, neuromuscular transmission
(NT), and reversibility of muscle fatty infiltration (MFI) in rabbit supraspinatus FD > 2°.Material and methodsThe supraspinatus tendon was detached from the
greater tubercle, infraspinatus, and subscapularis in 16 rabbits. The tendon
was reinserted after 12 weeks, and the animals were euthanized 24 weeks
after reconstruction. MFI was measured in the middle part of the supraspinatus. Single-fibre EMG (SFEMG) examination of the supraspinatus NT was
performed on 4 animals.ResultsThe power of analysis was 99%. Significant differences in MFI volume were found between the operated (4.6 ±1.1%) and the opposite control
sides (2.91 ±0.61%) (p < 0.001). SFEMG revealed no significant differences
between the disuse and the control supraspinatus muscles (p > 0.05); however, 6.5% of the examined muscle fibres exhibited NT disorders combined
with blockade of conduction in 2.5% of muscle fibres.ConclusionsCritical MFI in a disuse model of rabbit supraspinatus FD, CT
grade > 2°, is substantially reversible by eccentric training despite subclinical impairment of neuromuscular transmission. In addition, 0.63% reversal
of MFI is correlated with 1% hypertrophy of type I and II muscle fibre diameter.
Digoxinemia
Authors: Apestegui Barzuna Alvaro , Deliyore Romero Jorge 
Published: March 2021

Se discute el uso de la digoxina como adyuvante en la terapia cardiaca; se hace referencia a su mecanismo de acción y a los diferentes factores fisiologicos y medicamentos que afectan su biodisponibilidad, ash como a algunos de los factores que pueden alterar su cuantifIcacion en liquidos corporales. Se ofrecen recomendaciones para optimizar es- te determinacidn y se revisan los niveles terapeuticos recomendados.
Principios de profilaxis antibiótica en Cirugía
Authors: Cordero Arias Bernal 
Published: March 2021

Introducción: La profilaxis antibiótica administrada de manera apropiada puede reducir el riesgo de infección hasta en un 50%.
Se revisa la clasificación de herida quirúrgica, los determinantes de infección de la misma y la fisiopatología de la profilaxis antibiótica. Estos factores sirven de base para ofrecer recomendaciones de una adecuada profilaxis antibiótica, e indicar las situaciones en que se debe usar la misma.
Conclusiones; La utilización correcta de la profilaxis antibiótica previene la infección y evita consecuentemente trastornos físicos y psicológicos en el paciente. Por otro lado disminuye los altos costos hospitalarios.
Vuelos de ambulancia en Costa Rica. Reporte de 1102 pacientes trasladados
Authors: Salas Segura Donato 
Published: March 2021

Justificación: La realización de vuelos ambulancia interhospitalarios es una práctica relativamente frecuente en nuestro país, sin que se mantenga un adecuado registro de esta actividad. Objetivo: Presentar un trabajo estadístico descriptivo del transporte aéreo de pacientes en los últimos años.
Método: Análisis bioestadístico retrospectivo de los pacientes trasladados entre setiembre de 1993 y setiembre de 1996. Se utilizaron dos cuestionarios complementarios entre sí diseñados para el estudio y cuatro bitácoras de vuelo comúnmente utilizadas en aviación para recolectar la información. Se incluyeron variables de : nombre, número de identificación, sexo, edad, hospital de origen, hospital de destino, diagnóstico inicial, condición clínica, número de acompañantes, tipo de avión, duración del vuelo, aeropuerto utilizado, fecha y día del vuelo.
Resultados: Se transportaron 1102 pacientes, 52% de ellos hombres, con un marcado predominio de menores de 40 años y en edad pediátrica. Ginecobstetricia y Neonatología constituyen las especialidades de mayor referencia (19% cada una).
El 82% de los pacientes se consideró en condición estable y solo el 2% crítica. La mayoría de los pacientes procedía del Hospital de Ciudad Neily. El principal hospital de destino fue el Hospital San Juan de Dios, seguido por el Hospital Nacional de Niños. La mortalidad global durante el traslado fue de 7 pacientes (0.6%).
Conclusión: Es necesaria la implantación de un adecuado sistema de registros médicos para esta población. Así mismo es necesaria la implementación de sistemas de control de calidad para esta actividad.