bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ocena wpływu nasuwającego się górotworu karpackiego na przebieg procesów naftowych w utworach jego podłoża w rejonie Rzeszowa
Authors:   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Spunda Karol , Słoczyński Tomasz ,   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Sowiżdżał Krzysztof ,   Instytut Nafty i Gazu – Państwowy Instytut Badawczy
Published: June 2021

The article presents the concept of petroleum systems modeling in the area with complex fold-thrust belt structure. The aim of the study was to verify the views on the influence of the overtrusting Carpathian orogen on the course of petroleum processes in the basement (Meso-Palaeozoic) formations. The project was implemented in the marginal zone of the Skole Unit (Outer Carpathians) overlapping various structural and tectonic units of the basement. The area of Rzeszów city was selected as it presents adequate complexity of the geological structure to meet assumed methodological objectives of the project and, at the same time, provides relatively vast amount of geological data available which creates a conditions for a comprehensive approach. The study was carried out using the Dynel 2D and PetroMod 2D software. The course of the structural and tectonic evolution of the area was reconstructed in 5 stages, the results of which were subsequently applied in a dynamic modeling of the petroleum systems. The modeling results made it possible to recreate and analyze the course of a complex geological processes, the effects of which are manifested, among others, by the time and amounts of generated hydrocarbons as well as the dynamics of expulsion, migration and accumulation processes. The results show the course of petroleum processes in each stage of the petroleum basin evolution, revealing a special role of thrust tectonic of Outer Carpathians on basement formations. For the adopted assumptions of the structural and tectonic evolution, the generation of hydrocarbons by Lower Palaeozoic source rocks was initiated with the overthrusting of the Carpathians. This increases the chances of their accumulation in reservoir intervals sealed by an overthrusting orogen. This is a positive premise in the context of petroleum exploration in the area.
Studium przypadku jako metoda badania procesów zachodzących w komunikacji społecznej
Authors: Filanowski Błażej 
Published: June 2021

W rozdziale omówiono studium przypadku jako metodę stosowaną w badaniach nad złożonymi i procesualnymi zjawiskami z obszaru komunikacji społecznej. Autor wskazuje na różnorodność metodologiczną, która staje się wyzwaniem dla badacza wybierającego metodę. Jedną z kluczowych decyzji, którą musi on podjąć to uwzględnienie istniejących koncepcji teoretycznych w projektowanym procesie badawczym. Problem ten analizowany jest w oparciu o cztery postawy badawcze wyróżnione przez Hansa-Gerda Riddera.
Black consumers perceptions towards luxury brands in South Africa
Authors: Makhitha K Mercy 
Published: June 2021

The paper determines the black consumers’ perceptions towards luxury brands in South Africa. The purchase of luxury brands has been on the rise locally and internationally. Global brands have been investing in SA by expanding to the region. The demand for luxury brands has also increased over the past decades. In SA, the middle-class group has also increased, particularly the black middle class which increased the market for luxury brands. To achieve the objectives of the study, a survey was conducted among black consumers in Thohoyandou, Venda, South Africa. Data were collected by two fieldworkers who intercepted shoppers visiting a regional mall in the area. Data were analyzed using SPSS 25. The descriptives, factor analysis, and ANOVA were analyzed to achieve the objectives of the study. The findings of the study reveal that black consumers are more influenced by the rarity and uniqueness of the brands followed by the financial and functional values of the brands. Black consumers’ perceptions towards luxury brands were found to differ across age and income groups but did not differ across gender and education levels. Organizations targeting black consumers must design brands that are rare and unique and ensure that brands deliver the financial and functional values desired by black consumers
Framework of the internal control under remote management: An empirical study
Authors: Mamand Omed , Alagoz Ali 
Published: June 2021

As Covid-19 lockdown forced firms to organize work differently, for example, managing people remotely. Despite the benefits may a firm obtain in adopting new business tools like remote management, but providing assurance that internal control function in an efficient manner is important for a firm; that is because there is a growing interest in internal control issues. It is very important to determine how the remote working model, which emerged during the Covid 19 pandemic process, has changed the accounting processes of businesses. The aim of this study is to propose an internal control model under factors such as remote management, risk assessment, control activities, information and communication, and observation. The data in the research were obtained from the experts in our sample by using the survey method. Our sample consists of managers, supervisors, and academics. The data obtained were evaluated with the Smart-PLS version 3.2.9 program. Findings highlight a positive relationship between control activities and remote management.
Accounting treatment analysis of agricultural activities in presenting financial statements based on PSAK 69 IN PT IJ
Authors: Muhamada Fathi Maurits , Harnawati Erna , Wijaya Satria Yudhia 
Published: June 2021

Agricultural activity is a type of operational activity carried out by an entity to manage biological transformation and harvested biological assets to be sold or converted into agricultural products. In biological transformation, measurement is needed, which shows the value of a biological asset in fair value with the entity's economic benefits. PSAK 69 concerning agriculture has been approved by the Indonesian Financial Accounting Standards Board (DSAK IAI), and its implementation becomes effective as of 1 January 2018. PSAK 69 Agriculture regulates the accounting treatment and disclosures related to agricultural activities. This research was conducted to determine the accounting treatment of agricultural activities and the implementation of PSAK 69 to PT IJ, which is one of the entities whose business activities are engaged in the exploitation of industrial plantations. This study used qualitative research methods with interpretive paradigms and ethnomethodology approaches. Data analysis techniques were used at the time of data collection in observations, interviews with informants, and collecting documents in financial statements supporting data research. Based on the research conducted, the discussion results signify that the accounting treatment of agricultural activities at PT IJ in recognition, measurement, recording, presentation, and disclosure is in accordance with PSAK 69 concerning agriculture.
The Effects of Fluid Viscosity and Density on Proppant Transport in Complex Slot Systems
Authors: Bahri Ashtiwi , Miskimins Jennifer 
Published: June 2021

Summary
In this paper, we discuss proppant transport behavior in a complex slot system. Specifically for this study, focus is placed on two different fluid systems, a water/glycerin solution and a water/sodium chloride solution, which represent varying fluid densities and viscosities. The effects of changing fluid viscosities, fluid densities, proppant densities, proppant sizes, proppant concentrations, and slurry injection rates on proppant transport were then experimentally investigated.
The slot system consists of a 4-ft long, 0.2-in. primary slot with three secondary slots and two tertiary slots, all at 90° angles to each other. The fluid systems represented brine fluids up to 9.24 ppg and viscous fluids up to 4.3 cp. Although glycerin was used for viscosification, the results can be compared to fluid systems with similar viscosities that are created using other additives such as friction reducers. The proppants used in the study consisted of two sands of 100 and 40/70 mesh (specific gravity of 2.65) and two 40/70 ceramic proppants with specific gravities of 2.08 and 2.71.
The study results show that a water/glycerin solution, with a viscosity of 4.3 cp, has significant proppant-carrying capacity with proppants delivered uniformly to greater distances. In addition, sieve analysis conducted on each of the various slots indicated that for all tested proppants that the water/glycerin systems were more capable of carrying larger particles to farther distances. Conversely, the results show that a water/sodium chloride solution of 9.24 ppg density has less capability to carry the proppant farther into the slots. From a comparison standpoint, in all tested cases, viscosity increases had a greater impact on the overall proppant transport than fluid density.
In addition, results of the study showed that both increasing proppant concentrations and injection rates have a positive impact on proppant transport, with more proppant being transported farther into the slot system in both cases. The higher the proppant concentration, the sooner the equilibrium dune height (EDH; height when transport starts to occur after dune building) was achieved, the more efficient transport became. Increasing the injection rate led to improving proppant transport by increasing the drag and lift forces on the proppant, which lead to decreased proppant settling velocities and transport farther into the slots.
A Gas Separation Model for a Downhole Gravitational Separator
Authors: Miranda-Lugo P. J. , Ortiz-Vidal L. Enrique , Rodriguez O. M. H. 
Published: June 2021

Summary
Pumping systems reduce their efficiency and lifetime when working with free gas at the pump inlet. Downhole gas separators are usually installed upstream of the pump in oil production wells to avoid free gas, but they cannot handle high void fraction. Studies on the so-called inverted-shroud gravitational separator indicate that it is possible to achieve gas separation efficiencies (GSEs) higher than 97%, even in the presence of very high void fraction. Gas separation inside this kind of separator works in two stages. The most critical stage is related to gas entrainment caused by a plunging free-surface flow in an annular channel formed by the production tubing and the separator itself, where strong kinetic energy dissipation takes place. Studies regarding this phenomenon in inverted-shroud separators are scanty. In this study, we present a semianalytical model supported by an empirical turbulent energy-dissipation correlation. The proposed correlation is based on dimensional analysis. New experimental data of the statistical distributions of bubble diameters during the gas entrainment process are presented. We measured bubbles diameters using a high-speed video camera and an edge detection algorithm. Data of both bubble diameters and GSE were used to adjust and validate the proposed model. The model establishes a transition boundary that separates a region of total gas separation (TGS) from a region of partial gas separation (PGS). In other words, it provides the operating envelope of the separator. The results can be used as a starting point for the design of inverted-shroud separators for field applications.
Expanding catchment-scale hydrologic restoration in suburban watersheds via stream mitigation crediting—A Northern Kentucky (USA) case study
Authors: Hawley Robert J 
Published: June 2021

Abstract
The need for hydrologic restoration is well established in stream ecosystems across the world; however, available funding for catchment-scale restoration typically falls far short of what is required to produce in-stream results. Hydrologic restoration can be particularly important for improving stream integrity in urban watersheds, but implementation can be challenging due to high property values and limited space for retroactive stormwater control measures. This Northern Kentucky (USA) case study summarizes how stormwater mitigation interventions could be, and have already been, used to credit stream mitigation projects via conventional US Army Corps of Engineers crediting protocols. Hydrologic restoration can generate stream mitigation credits by directly improving the flow class and/or by indirectly improving the habitat quality. For example, a stormwater intervention could create a shift from an ephemeral to intermittent flow class, while at the same time facilitating greater substrate stability, lower embeddedness, and other geomorphic improvements, that subsequently improve the categorical habitat rating. The ecological lift of such hydrologic interventions could be further expanded via concurrent in-stream mitigation measures such as re-establishing a jurisdictional stream in place of a drainage ditch or installing habitat structures such as toe wood and log steps, among other activities. Such process-based hydrologic restoration is consistent with the goals of the Clean Water Act and has the potential to be more beneficial to greater portions of stream networks and greater numbers of stakeholders than conventional habitat restoration alone.
Transformation of Rural Landscape Patterns in Southwest China's Mountain: A Case Study Based on the Three Gorges Reservoir Area
Authors: Li Mingzhen , Yuxuan Xie , Li Yangbing 
Published: June 2021

Abstract
Since the 21st century, China's rural areas have experienced far-reaching social and economic transformation. Studying the evolution and transformation of rural land use landscape pattern under this background is of great significance to reveal the evolution of human-land relationship in China’s mountains and explore the rural revitalization path. Based on the study of land use change and transition, we put forward the theoretical framework of landscape pattern transition, and establish the rural landscape pattern transformation model of mountain area in southwest China by use of high resolution remote sensing images and field investigation. The results show that: (1) The focus of landscape pattern transformation in the case region is mainly embodied in the reduction of cultivated land, the expansion of orchard and the restoration of woodland. There are obvious differences in landscape pattern transition among different terrain areas in the case region. (2) From 2000 to 2018, the landscape types in the valleys of the study area were gradually diversified, there was a concentration of intensive land use types, and the landscape types in mountainous and hilly area were gradually simplified, and forest land was restored. (3) On the whole, the landscape pattern of the study area has changed from production-oriented landscape pattern to eco-economic landscape pattern and eco-regulatory landscape pattern. The results of case study show that the rural landscape pattern in the mountainous areas of Southwest China has undergone a transformation under the background of land use transformation, which has its own particularity, and verifies the theoretical hypothesis proposed in this paper, so it is necessary to conduct a systematic and in-depth study on this. The theories and methods of this paper are helpful to understand the process of landscape pattern transition in mountainous areas, and provide reference value for the rational use of land resources, ecological management and rural revitalization in similar mountainous areas.
Effect of Prophylactic Vitamin C Administration On The Efficiency of Florfenicol Or Sulfadiazine-Trimethoprim Antimicrobial Therapy In Chickens With Staphylococcal Arthritis
Authors: Nematollahi Fahimeh , Tahoora Shomali , Bahman Abdi-Hachesoo , Azizollah Khodakaram-Tafti 
Published: June 2021

Abstract
Septic arthritis (SA) shows improper response to antibacterial therapy. This study evaluates the effect of prophylactic vitamin C administration on the efficiency of sulfadiazine-trimethoprim (SDT) or florfenicol (FF) in broilers with experimental SA. Broilers (210) were randomly allocated into 7 equal groups: I. Negative control (NC) (normal birds). II. Positive control (PC) that rendered arthritic by injection of multi drug resistant S. aureus in tibiotarsal joint at the age of 35 days. III. Vehicle control (injected with sterile medium). IV. Arthritic FF-treated (20 mg/kg/day). V. Arthritic vitamin C+FF-treated (as above+vitamin C at 15g/100L of D.W. from day 25 of age). VI. Arthritic SDT-treated (35 mg/kg/day). VII. Arthritic vitamin C+SDT-treated. Antibacterials started at day 39 of age and lasted for 5 days. Samplings were performed at the age of 44 and 54 days. A long lasting SA with severe fibrinoheterophilic synovitis and reduced body weights developed in PC broilers as compared to NC group (p<0.05). Oxidative stress was present at sampling 1. Arthritis was not reflected in IL-6 levels in synovial fluid. None of the antibacterials resulted in completely successful treatment. Vitamin C did not appreciably improve lameness and arthritis scores, although it decreased lipid peroxidation and improved weights of FF treated-arthritic birds. For SDT-treated birds, vitamin C only ameliorated histopathological changes. In conclusion, except for improving body weight in FF-treated birds, prophylactic administration of vitamin C is not associated with improvements in clinical outcome of antimicrobial therapy of broilers with SA, although it ameliorates oxidative stress and some histopathological changes.
Contamination Of Perfluorinated Compounds In Sediment of The Cau River, Vietnam
Authors: Tran Hoai , Van Dieu-Anh , Vu Duc Thao , Huynh Trung Hai 
Published: June 2021

Abstract
Perfluorooctane sulfonate (PFOS) and Perfluorooctanoic acid (PFOA) are recognized as emerging environmental pollutants because of their high persistence in various environmental matrices and toxic effects on humans and animals. In Vietnam, PFOA and PFOS have been detected in surface water and sediment in recent studies. The objectives of this study were to evaluate the occurrence of PFOS and PFOA in the sediment of the Cau river, Thai Nguyen city to determine the partition coefficient between water and sediment, and to elucidate the environmental factors affecting the sorption of PFOS and PFOA to sediment. The concentration of PFOS and PFOA in surface sediment ranged from 1.19 ng/g to 4.73 ng/g and 0.17 ng/g to 1.78 ng/g, respectively, with the highest concentrations, are recorded in the areas that receiving wastewater from domestic and industrial activities. Depending on the depth, the total concentrations of PFOS and PFOA ranged from 8.41 to 19.25 ng/g and tended to decrease with increasing sediment depth. The concentrations in the surface sediments are lower than the second layer, indicating a downward trend in the use and consumption of these compounds in recent years. The water-sediment distribution coefficient (Kd) is relatively different for PFOS and PFOA, with log Kd values ranged from 1.31–1.86 and 0.08–1.31 for PFOS and PFOA, respectively. This study also confirms that the total organic carbon content is the physiochemical property that significantly affected the adsorption to sediments of PFOS and PFOA. No apparent relation was found between PFOS, PFOA concentration in sediment and clay content nor sediment particle size.
Dosage Suppressor of NNF1(DSN1)Promotes Tumour Progression of Oral Squamous Cell Carcinoma(OSCC)Through Remaining High Level of Chromosome Instability
Authors: Wang Chenwei , Jiang Lin , Cui Meiling , Rao Jufang , wang wei 
Published: June 2021

Abstract
Introduction: Dosage suppressor of NNF1 (DSN1) is a component of the kinetochore protein complex which is critical for normal chromosome segregation. Researches showed that DSN1 was upregulated in colorectal carcinoma and hepatocellular carcinoma. However, the biofunction and potential mechanism was still unknown. Materials and methods: We searched The Cancer Genome Atlas (TCGA) database and analyse DSN1 expression pattern in head and neck carcinoma. qRT-PCR and western blot were applied to measure the expression level of DSN1 in OSCC patients and OSCC cell lines. The biological influence of DSN1 was studied using CCK-8, colony formation assay, Transwell migration and invasion assays, the chromosome instability and DNA repair ability were also detected. Results: DSN1 was upregulated in OSCC tissues in both TCGA database and our in-house database. The proliferation, migration and invasion ability decreased in Cal-27 cell line after knocking down of DSN1. The epithelial-mesenchymal transition was activated in DSN1 overexpressed cells. DSN1 confers radio-resistance to OSCC and DSN1 remains high level of chromosome instability and low level of DNA repair. Conclusion: Taken above, our results indicate that the upregulated DSN1 is positively associated with prognosis in OSCC. Our findings indicate that DSN1 promotes OSCC cell proliferation, migration and invasion and radio resistance and remains OSCC with high level of chromosome instability.
Multiple Optical Features In Binary-Transition-Metal Borate Glasses
Authors: Hassan Moukhtar A. , Ashoush M. A. , Ebrahim F. M. , Hady M. M. EL , Ahmad F. , El-Fattah Zakaria M Abd 
Published: June 2021

Abstract
Glasses doped with transition metal (TM) ions exhibit rich optical transitions spanning the entire ultraviolet, visible, and infrared spectral regimes. Here we utilize the melt-quenching techniques to synthesis binary-TM-doped borate glasses of composition xCuO-(75-x)B2O3-24.7Li2O-0.3Cr2O3, with x = 0, 0.2, 1.0 and 2.0 mol %. We identify several optical transitions from Cr3+, Cr6+, and Cu2+ ions, the latter manifests at longer wavelengths and gains higher intensity with Cu additives. Despite Cr concentration being fixed, the Cr6+ peaks are quenched and Cr3+ signals are barely attenuated. This behavior rules out possible phase separation and suggests non-trivial interplay between the two TM ions and ligand, as supported by probing their oxidation states from electron spin resonance. The crystal field and Racah parameters followed an opposite behavior, while the optical band gap is reduced upon doping. These changes are correlated with structural modifications introduced by Cu additives, where we anticipate homogenous and preferential proximity of Cu-Cr ions within the network.
Overexpression of NLRPs as Independent Indicator for Prognosis of Patients with Head and Neck Squamous Cell Carcinoma
Authors: Xu Jiayuan , Bangliang Li , Wen Wang , Lucheng Fang , Lin S 
Published: June 2021

Abstract
Background: NOD-like receptor proteins (NLRPs) are an important part of gene regulation and play a vital role in many cancers. Recently, some studies have shown that members of the NLRP family are a crucial component in the progression of head and neck squamous cell carcinoma (HNSCC) and can be used as the main therapeutic targets. Methods : To explore this hypothesis, bioinformatics analyses using Gene Expression Profiling Interactive Analysis (GEPIA), Oncomine, UALCAN, the Human Protein Atlas, and the cBioPortal database were performed in this study to determine the intracellular roles and functions of NLRPs. String and Cytoscape were also employed to investigate and visualize the proteins in intracellular pathways related to the regulation of HNSCC carcinogenesis. We also explored the miRNAs downstream of NLRPs involved in nasopharyngeal carcinoma using GEO2R, TargetScan, and miRDB.Results: Further analysis revealed that the overexpression of NLRPs was significantly related to the HNSCC stage and the survival of patients. We eventually determined that the NLRPs are regulated by three miRNAs (miR-199a-3p, miR-125a-5p, miR-22).Conclusion: This study demonstrates that the NLRP family can be prognostic biomarkers for HNSCC patients. We also explored the miRNA targets downstream of NLRPs in patients with NPC, laying the foundation for further research