bluuebunny/crossref_metadata_2025_split huggingface dataset:
Subsurface Sludge Sequestration in Cyclic Steam Stimulated Heavy Oil Reservoir in Liaohe Oilfield
Authors: Zhong Liguo , Liu Jianbin , Yuan Xiaonan , Wang Cheng , Teng Liyong , Zhang Shoujun , Wu Fei , Shen Wenmin , Jiang Cheng 
Published: April 2019

Abstract
There are a lot of sludge generated in oil production and storage processes, usually complicated chemical processes are involved to treat the sludge effectively, and high cost and environmental pollution are always extremely heavy burden for Liaohe Oilfield. Therefore, the feasibility and performance of sludge injection into steam stimulated wells, and sludge sequestration and associated heavy oil recovery improvement are investigated based on results of lab research and field operation.
At first, the composition and rheology of the sludge samples from Liaohe Oilfield are measured and analyzed in detail. Secondly, the injection, sequestration and block performance are investigated by sand pack experiments, particularly the aggregation and blocked sand are analysed by scanning electron microscope, and improvement of heavy oil recovery by sludge injection. Thirdly, the principles of sludge sequestration and associated heavy oil recovery improvement are discussed. At last, field application of sludge in Liaohe Oilfield is presented.
As we know, the sludge are produced from the reservoir, it is comprised of mud, fine sand, some oil phase components and water. Aggregation of the sludge components except water is potential to block porous media such as produced formation, at the same time, the sludge are buried in its origin, the reservoir. The sludge is injected to produced reservoir through enlarged pore at high injection pressure, and aggregated mud, fine sand and oil from sludge could consolidate formation sand and block pores effectively after injection process (permeability decease of sludge blocked sand tube is more than 90%). As a result, the sludge is stored in steamed formation, and separated water could be filtered and produced. At the same time, steam conformance could be improved by stored sludge, accordingly heavy oil production is increased. Average oil production increase of 45 wells in Liaohe Oilfield is more than 20%.
Substantial sludge are treated by such subsurface sludge sequestration in steamed heavy oil reservoir, and sludge sequestration in other reservoirs are evaluating as well.
Leveraging Big Data for Social Responsibility
Authors: Peterson Cynthia Ann 
Published: April 2019

Abstract
Big data has the potential to revolutionize the way social risks are managed by providing enhanced insight to enable more informed actions to be taken. The objective of this paper is to share the approach taken by PETRONAS to leverage big data to enhance its social performance practice, specifically in social risk assessments and grievance mechanism.
The paper will deliberate on the benefits, challenges and opportunities to improve the management of social risk through analytics, and how PETRONAS has taken those factors into consideration in the enhancement of its social risk assessment and grievance mechanism tools. Key considerations such as disaggregation of data, the appropriate leading and lagging indicators and having a human rights lens to data will also be discussed.
Leveraging on big data is still in its early stages in the social risk space, similar with other areas in the oil and gas industry according to research by Wood Mackenzie. Even so, there are several concerns which include; the aggregation of data may result in risks to minority or vulnerable groups not getting surfaced; privacy breaches which violate human rights and potential discrimination due to prescriptive analysis, such as on a community's propensity to pose certain social risks to projects or operations. Certainly, there are many challenges ahead which need to be considered, including how best to take a human rights approach to using big data.
Nevertheless, harnessing the power of big data will help social risk practitioners turn a high volume of disparate pieces of raw data from grievance mechanisms and social risk assessments into information that can be used to avoid or mitigate risks now and in the future through predictive technology. Consumer and other industries are benefiting from this leverage now, and social performance practitioners in the oil and gas industry can emulate these proven models.
Psychological Features of Adaptation of Oil and Gas Workers in the Arctic and in the South of Russia
Authors: Korneeva Yana , Simonova Natalia 
Published: April 2019

Abstract
The study was carried out with the financial support of the Russian Foundation for Basic Research in the framework of the research project No. 18-013-00623. Adaptation of a person to the extreme conditions of the Arctic is a complex process of the formation of the homeostasis of the organism, which is improved from generation to generation. Adaptation is a complex systemic process of establishing the mutual correspondence of a person with the environment, which is carried out due to a certain activity of an individual and its mobilization. In addition to various climatic factors, a group isolation factor is similar for workers in the south and north of the Russian Federation during shift work organization. In this connection, an important role in the effectiveness of personnel in these conditions is the presence of successful sociopsychological adaptation. The purpose of this study is to identify the characteristics of the sociopsychological adaptability of oil and gas workers in shift labor organization in the north and south of the Russian Federation. To achieve this goal and objectives, a study was conducted in which 82 employees took part using the shift organization of labor in the south of the Russian Federation. The study was conducted from June-July 2018 (the duration of shift shifts is 14 days, the rest period is 14 days). A study was also conducted on the oil and gas production with the shift organization of labor in the territory of the Nenets Autonomous District of Russia. The study involved 70 workers aged from 24 to 60 years old. Research methods: the study of documentation, observation, questioning and psychological testing, statistical methods of data analysis. Workers in shift forms of labor in the south of the Russian Federation have a higher level of expression of all the parameters of socio-psychological adaptation: adaptation, acceptance of oneself, acceptance of others, emotional comfort, internality and domination.
Safe Working in Hot Weather Conditions
Authors: Lim Peng Hong , Lee Nai Ming 
Published: April 2019

Abstract
The commitment of Oil Spill Response Limited (OSRL) to "provide resources to respond to oil spills efficiently and effectively on a global basis" to the industry is principally founded on the health, safety and well being of personnel; fundamental to the business is the effective management of health and safety risks.
When oil spills occur, responders are often expected to work in challenging environments which present serious health and safety risks; examples include, but are not limited to, extremes of temperature, wind and humidity; a concern is personnel working in hot weather conditions. To this end, a safe system of work, aligned to industry good practice, was established. The safe system of work for operating in hot weather consolidates and strengthens existing processes in the OSRL risk management framework; it leverages on familiar tools and utilises ‘Heat Risk Categories’ derived from ‘WetBulb Globe Temperatures (WBGT)’.
Key to the effort are written procedures which calibrate and standardise measures to prevent and manage heat injuries, applied to the following: 1) Planning; 2) Response; and 3) Demobilisation phases in any oil spill clean up. The procedures were validated over a succession of field deployment exercises conducted in Bahrain during summer, between 2016 and 2018
This paper will discuss the risk management approach by OSRL - focus is placed on the practitioner's perspective to ensure service delivery in hot weather conditions. The attention given to heat injuries, justified by instrument-measured indicators grounded in research, represents a step improvement to ensure the health and safety of responders.
From a practical perspective, the following considerations are brought to the fore, starting from the planning phase: Adjustment of work load, clothing and PPE, commensurate with the heat riskAllocation of sufficient and appropriate resources to implement recommended work/rest cyclesCapture of data for reporting and future reference (and further study)
RTS,S malaria vaccine pilot studies: addressing the human realities in large-scale clinical trials
Authors: Berg Machteld van den , Ogutu Bernhards , Sewankambo Nelson , Biller-Andorno Nikola , Tanner Marcel 
Published: April 2019

Abstract
A malaria vaccine as part of the integrated malaria control and elimination efforts will have a major impact on public health in sub-Sahara Africa. The first malaria vaccine, RTS,S, now enters pilot implementation in three African countries. These pilot implementation studies are being initiated in Kenya, Malawi and Ghana to inform the broader roll-out recommendation. Based on the malaria vaccine clinical trial experiences, key ethical practices for effective clinical trial research in low-resource settings are described. For successful vaccine integration into malaria intervention programs, the relational dynamics between researchers and trial communities must be made explicit. Incorporating community values and returning to research practices that serve the intended benefactors are key strategies that address the human realities in large-scale clinical trials and pilot implementation, leading to positive public health outcomes.
PRODIG (Prevention of new onset diabetes after transplantation by a short term treatment of Vildagliptin in the early renal post-transplant period) study: study protocol for a randomized controlled study
Authors: Gaiffe Emilie , Crepin Thomas , Bamoulid Jamal , Courivaud Cécile , Büchler Matthias , Cassuto Elisabeth , Albano Laetitia , Chemouny Jonathan , Choukroun Gabriel , Hazzan Marc , Kessler Laurence , Legendre Christophe , Meur Yannick Le , Ouali Nacera , Thierry Antoine , Anota Amélie , Nerich Virginie , Limat Samuel , Bonnetain Franck , Vernerey Dewi , Ducloux Didier 
Published: April 2019

Abstract
Background: Post-transplant diabetes is a frequent and serious complication of kidney transplantation. There is currently no treatment to prevent or delay the disease. Nevertheless, identification of risk factors make possible to target a population at risk to develop de novo diabetes. We hypothesized that a short term treatment with Vildagliptin may prevent new onset diabetes after transplantation (NODAT) in high-risk patients.
Method/design: This is a multicenter double-blind placebo-controlled randomized clinical trial. Patients undergoing first kidney transplantation will be included in 10 French transplant center. Included patients will be randomized (1:1) to receive either vildagliptin 100 or 50 mg/day (depending on glomerular filtration rate) during 2 months (the first dose being administered before entering the operating theatres) or placebo. Additional antidiabetic therapy could be administered according to glycemic control. The primary outcome is the proportion of diabetic patients 1 year after transplantation, defined as patients receiving a diabetic treatment, or having a fasting glucose above 7 mmol/l, or/and with an abnormal oral glucose tolerance test. Secondary outcomes include the glycated hemoglobin, the occurrence of acute rejection, infection, graft loss and patient death at 3 months, 6 months and 12 months after transplantation. Outcomes will be correlated to clinical and general characteristics of the patient, cardiovascular history, nephropathy, dialysis history, transplantation data, biological data, the health-related quality of life and the cost-effectiveness of prevention of diabetes with vildagliptin.
Discussion: There are only few data concerning pharmacological prevention of post-transplant diabetes. If our hypothesis is verified, our results will have a direct application in clinical practice and could limit diabetes-associated morbidity, reduce cardiovascular complications, increase quality of life of renal transplant patients, and consequently promote graft and patient survival. Our results may possibly serve for non-transplant patients carrying a high-risk of diabetes associated with other co-morbidities.

Trial registration: ClinicalTrials.gov, NCT02849899 Registered on 8 February 2016.
Keywords: Diabetes prevention; Vildagliptin; kidney transplantation; randomized controlled trial.
Demyelinating Syndrome in Systemic Sclerosis and Neuromyelitis Optica
Authors: Deeb khaled , Dold Jessika , Labault-Santiago Jose 
Published: April 2019

Abstract
INTRODUCTION: The objective of this study is to report a case of a 44-year-old female who presented with intractable hiccups, vomiting, and later complicated with paraplegia. Imaging and sero/immunological studies were consistent with Neuromyelitis Optica (NMO) based on NMO-IgG sero-positivity and transverse myelitis on MRI. Further investigation revealed positive ANA, anti-RNA polymerase III autoantibodies, and Scl-70, leading to a concurrent diagnosis of systemic sclerosis (SSc). The coexistence of these two disease processes, namely systemic sclerosis and neuromyelitis optica, and their underlying clinical manifestations and therapeutic interventions, are seldom reported in literature and are worth reporting.

CASE REPORT: The patient was treated with high dose steroids, and subsequently developed malignant hypertension and acute renal failure, later identified as steroid induced scleroderma renal crisis on renal biopsy. Although Neuromyelitis Optica spectrum disorder (NMOSD) has often been associated with various collagen and autoimmune diseases, the coexistence of NMOSD and SSc presented a challenge where patient underwent aggressive physical therapy and necessitated an intervention with Rituximab to achieve an appropriate clinical response. We have received consent forms from the participant in our study, and we have them on file in case they are requested. We have also received patient’s consent for the data presented in this article and Figure 1.

CONCLUSION: This report expands on NMOSD associated autoimmune diseases. Systemic Sclerosis is an insidious disease that is often diagnosed late as not all patients often report skin manifestation. The finding suggests that patients presenting with acute neurological manifestations get tested for NMO-IgG/AQP-4 antibodies and other immunological studies based on clinical findings.
Hepatitis C pretreatment profile and gender differences: Cognition and disease severity effects
Authors: Barreira David Pires , Marinho Rui T. , Bicho Manuel , Flores Isabel , Fialho Renata , Ouakinin Sílvia 
Published: April 2019

Abstract
BACKGROUND

The hepatitis C virus (HCV) is known to infect the brain, however findings on associated neuropsychiatric syndrome are controversial and the association itself remains unclear. Gender research in HCV infection is limited, failing to integrate the role of gender in neurocognitive syndrome. This study aimed to characterize psychological and neurocognitive profiles in HCV-infected patients before treatment and to describe gender differences in those profiles as well as the impact of disease severity.

METHODS

A total of 86 patients diagnosed with chronic hepatitis C were selected in the context of a multidisciplinary out-patient clinic. A semistructured interview was performed to collect social-demographic data and clinical characterization. Assessment was performed using the Hamilton anxiety scale (HAM-A), Hamilton depression scale (HAM-D), Beck depression inventory and a neuropsychological battery to measure attention, concentration, memory and executive functions components validated for the Portuguese population, before starting treatment. To identify the disease severity, platelet ratio index and FibroScan® were used.

RESULTS

A statistically significant gender effect was found on HAM-A (B = 0.64, confidence interval (CI): 0.17-1.11) and HAM-D, with women scoring higher (B = 0.62, CI: 0.14-1.09) compared to men. Regarding neuropsychological scores, significant differences between gender were identified in executive functions Trails Making Test (TMT)-B (B = 0.48, CI: 0.02-0.97), TMT B-A (B = 0.26, CI: -39.2 to -3.7) and in digit span total (B = -0.52, CI: -1.0 to -0.04), with women performing worse than men. Controlling for years of substance dependence, Digit Span Total was no longer significant; however, TMT-B and TMT B-A continued showing gender differences. Regarding the presence or absence of substance dependence, only HAM-A and HAM-D remained significant. For categorial variables, Digit Span Total was also influenced by gender, with women being more likely to be impaired (odds ratio (OR) = 7.07, CI: 2.04-24.45), and a trend was observed for Digit Span Backward (OR = 3.57, CI: 1.31-9.75). No significant differences were found between disease severity and neurocognitive performance.

CONCLUSION

Data suggest that gender has an influence on depression, anxiety and cognitive functions independently of the stage of infection. This effect seems influenced by substance dependence.
Factors Affecting Self-management in Iranian Tuberculosis Patients: A Path Analysis Model
Authors: Ghavidel Nooshin , Mahmoodi Zohreh , Sharifipour Zhila , Harandi Tayebeh Fasihi 
Published: April 2019

Abstract
Background

Tuberculosis is a chronic infectious disease that, if not treated and managed properly, increases the Multi Drug Resistance (MDR). Self-management behaviors can reduce the progression of illness. Although various factors affect self-management, no study has not been conducted on the self-management tuberculosis through path analysis. This study evaluated the factors affecting self-management in tuberculosis patients using path analysis.

Methods

This study was a cross-sectional study and was done on 133 non prisoner tuberculosis (TB) patients that referred to all health centers in Karaj, Iran from March 2016 to February 2017.The structured questionnaire was applied. Data were analyzed with SPSS-17 and Lisrel 8.8, utilizing statistical path analysis to evaluate the relationships between self-management and its related factors.

Results

52.3% of the participants in the study were female and 47.7% were male. Respondents of this research were 46.9% smear-positive, 9.4% smear- negative, 43.8% extra-pulmonary TB. Fit indices confirmed the model fitness and logical relationships between the variables according to the conceptual model (X2=49.80, df=25). The final path model showed that the age (B=0.84), attitude (B=0.10), marital status (B=0.04) and house condition (B=0.03) impact self-management just through direct path. Knowledge (B=0.83) and education (0.16) affect the self-management through both direct and indirect paths. The education indirectly affects the self-management through both knowledge and attitude. knowledge indirectly impact self-management through attitude. In other words knowledge and attitude mediate the relationship between some factors and self-management.

Conclusions

This study provided an empirical model that illustrates the relationships between self-management and related factors in TB Patients. The most important factor that affects self-management through both direct and indirect paths was knowledge. The knowledge can be the target of interventions in support of self-management
Degradation of safranin by heterogeneous Fenton processes using peanut shell ash based catalyst
Authors: Ikhlaq Amir , Anwar Hafiza Zara , Javed Farhan , Gull Saba 
Published: April 2019

Abstract
Today, dyes are one of the major problematic pollutants in the environment and are broadly used in several industrial sectors. In the current research work, decolorization of safranin (basic dye) from aqueous solution was investigated using iron-impregnated peanut shell ash (Fe-PSA) as a catalyst in the UV-assisted heterogeneous Fenton process (Fe-PSA/H2O2/UV). The effect of parameters such as H2O2 concentration, catalyst dose, pH, initial dye concentration, temperature, and agitation speed was studied. The maximum decolorization of safranin was achieved at optimum parametric values of reagent dose = 8 mM, catalyst dose = 0.5 g, pH = 3, initial concentration of safranin = 50 ppm, temperature = 25 °C, and agitation speed = 200 rpm. The results revealed the efficient performance of Fe-PSA as catalyst in the Fe-PSA/H2O2/UV process for safranin treatment.
O coronel prefeito: um retrato pela imprensa da figura de Arthur Ferreira Filho no rearranjo político no norte do Rio Grande do Sul
Authors: Goulart Gabriela Tosta 
Published: April 2019

O presente artigo tem o objetivo de analisar o perfil da administração de Arthur Ferreira Filho em Passo Fundo, por ser ele o último interventor pré Carta Constitucional de 1946, estabelecendo uma relação com as ideias e projetos políticos veiculados na imprensa local. O recorte caracteriza a última administração de Arthur Ferreira Filho no município, marcado por um rearranjo político no nível estadual, o que foi acompanhado por um acirrado debate na imprensa e, principalmente entre seus opositores políticos. Passo Fundo à época era um dos principais polos econômico e político do estado, sendo uma importante base eleitoral. Assim, considera-se um espaço representativo para compreender o cenário em transição neste jogo de poder local e estadual.
Reconhecimento e classificação da cobertura vegetal a partir de informações provenientes do laser scanning empregando a função discriminante linear de Fischer
Authors: SCHIMALSKI Marcos Benedito , MITISHITA Edson Aparecido , NETO Anselmo Chaves 
Published: April 2019

A evolução do espaço rural vinculado a ampliação da fronteira agrícola, necessária as atividades do agro- negócio e da silvicultura, exercem forte pressão sobre os recursos naturaisimpactando, muitas vezes, de forma negativa as intervenções exercidas por tais atividades. Neste contexto, o conhecimento da realidade física necessária ao planejamento das intervenções, pode ser obtido através do emprego do Sensoriamento Remoto, cujos produtos podem auxiliar os gestores na orientação das atividades expansionistas e conservacionistas. Contudo, para a verificação da legislação ambiental brasileira, além de informações planimétricas, necessita-se de informações referentes à Geomorfologia. O sistema laser scanning apresenta vantagens no fornecimento destas informações além de possibilitar a separação da cobertura vegetal através de produtos derivados de suas observações, entre eles a imagem de intensidade. O objetivo geral deste trabalho foi verificar a classificação da cobertura vegetal a partir das observações brutas obtidas pelo laser scanning, empregando a Função Discriminante Linear de Fischer. Para possibilitar a classificação foram gerados parâmetros adicionais oriundos das observações laser: densidade de pontos, variância altimétrica e a altura da cobertura vegetal, além da informação referente à intensidade. São apresentadas as etapas de trabalho e os resultados obtidos no processo para a área de estudo localizada na represa do Capivari em Curitiba no Estado do Paraná.
Reavaliação taxonômica de lenhos das formações Irati e Serra Alta, Permiano da Bacia do Paraná , Brasil
Authors: MERLOTTI Sheila 
Published: April 2019

Com base na bibliografia e na revisão taxonômica de lenhos fósseis do Eopermiano da Bacia do Paraná, Brasil, três novas combinações, Myelontordoxy lon camposii (Mussa), Abietopitys articulata (Dohms) e Paulistoxylon iratiensis (Guerra-Sommer), são propostas e uma espécie, Polysolenoxylon bortoluzzii Guerra, é considerada inválida. Excetuando-se M. camposii, originária da Formação Irati no Estado de São Paulo, todas as demais são provenientes da Formação Serra Alta no Estado do Rio Grande do Sul. Com base nas novas combinações, apresentam-se emendas à diagnose genérica de Myelontordoxylon Mussa e à diagnose específica de A. articulata (Dohms).