bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimization of Surgical Treatment of Cholelithiasis and its Complications in Patients with High Operative-Anesthesiological Risk
Authors: Nazarenko Pyotr Mikhaylovich , Nazarenko Dmitry Petrovich , Polyansky Maxim Borisovich , Kvachakhiya Levan Lorikovich , Maslova Yana Vladimirovna , Kanishchev Yuriy Vasil'yevich 
Published: October 2019

The ratio of the prevalence of the gallstone disease (GSD) in the elderly and senile age groups compared with young and middle-aged patients can reach 3:4. The main complication of the GSD is acute cholecystitis, which is observed in more than 90% of patients. However, the most dangerous complication is considered to be obstructive choledocholithiasis, which leads to the development of mechanical jaundice and cholangitis in 10 - 35% of cases.
The aim of the researchwas to propose an algorithm for the treatment of the GSD complicated by acute cholecystitis and obstructive choledocholithiasis in elderly and senile patients with severe concomitant pathology.
Methods.The study is based on the analysis of the results of examination and treatment of 47 patients with GSD complicated by acute calculous cholecystitis and obstructive choledocholithiasis. All patients were divided into 3 groups. The first group included 17 patients in whom, in addition to acute cholecystitis, choledocholithiasis with concretion infringement in the BSDK was detected. The second group included 24 patients in whom, in addition to acute cholecystitis, obstructive choledocholithiasis and cholangitis were diagnosed. The third group included 6 patients in whom for some reason choledocholithiasis was not diagnosed at the first stage or it occurred later as a complication of cholecystostomy.
Results.For patients of the first group the endoscopic papillosphincterotomy on stone was performed followed by cholangiography to find out the status of the bile ducts. Patients of the second underwent percutaneous transhepatic choledochostomy at the first stage. Patients of the third group were injected a Foley catheter into the cavity of the gallbladder through the cholecystostomy opening and the cavity of the gallbladder was sealed. Saline solution was injected into the lumen of the gallbladder and its ducts under the pressure of 250 mm. aq. art. This led to the dilatation of the lumen of the bile ducts.
Conclusions.The proposed algorithm allows radical treatment of the GSD complicated by choledocholithiasis and cholangitis. The differentiated approach to the transpapillary solution of choledocholithiasis allows to minimize the risk of post-manipulation pancreatitis. AAPST allows to cure choledocholithiasis when endoscopic papillosphincterotomy is dangerous or not feasible.
Harvey Williams Cushing - founder of anesthetic monitoring, pioneer of neurosurgery (to the 150th of birthday
Authors: Alexeevich Andreev Alexander , Ostroushko Anton Petrovich 
Published: October 2019

Harvey Williams Cushing (1869–1939) graduated from Yale College and Harvard Medical School, and worked at the Massachusetts General Hospital of Boston. He created the first anesthesia card, introduced the term “regional anesthesia” into medical practice, described the Cushing triad, and in 1901, the second in the world, performed a successful operation on the pituitary gland for acromegaly. In 1910, he accepted the offer to become the head of the department of surgery at Harvard Medical School and the chief surgeon at Peter Benton Brigham Hospital, located on the campus. In 1933, Cushing moved to Yale, where from 1933 to 1937. was a professor of neurology. In the US, Harvey Williams Cushing is honored as a pioneer of neurosurgery and the greatest neurosurgeon in world history. Cushing developed and improved the technique of many neurosurgical operations, proved the right to the very existence of intracranial surgery as a separate medical specialty. In 1939, he was honored to become an Honorary Member of the Royal Medical College in London. Harvey Williams Cushing died on October 7, 1939 from myocardial infarction. He was awarded honorary degrees in nine American and thirteen European universities; several state orders and medals; as well as many different awards and prizes. Harvey Williams Cushing was a member of the American Philosophical Society, the National Academy of Natural Sciences, and the American Academy of Humanities and Natural Sciences, a foreign member of the Royal Society of London, and also an honorary member of about seventy medical, surgical, and scientific communities in Europe, USA, South America and india.
ISLAMIC POLITICAL PARTIES IN SOUTHEAST ASIA: THE ORIGIN AND POLITICAL PROBLEMS
Authors: Isa Harahap Husnul 
Published: October 2019

Purpose: The objective of the study was to describe factors that influenced the establishment of the Islamic political parties and its political problems in South East Asia.
Methodology: The research methodology used in the present research study is a literature study method with qualitative analysis. The data obtained from documents and books which were studied by online and offline. The gathered data analysed by using political theories. One of them was the analysis of the emergence of Islamic political parties.
Main Findings: The study had two main findings. First, there were six factors which influenced the establishment of Islamic political parties, that is the demography, political system, political ideology, contagion, international political economy, and political competition. Secondly, there were four problems faced by Islamic political parties in winning the political contest, especially in the general election. The first problem was the division of local cultural identity, followed by the unfavorable situation for Islamic political parties, political ideology, and the quality of Islamic political parties themselves.
Implications: It had a theoretical implication on the harmony between Islam and democracy, the emergence of Islamic political parties, and the problems. It revealed that there was no problem between the existence of Islamic political parties and democracy.
Novelty: When the secular political party lost public trust, the voters did not automatically shift their political votes to the Islamic political parties.
In canine acute diarrhoea with no identifiable cause, does daily oral probiotic improve the clinical outcomes?
Authors: Tong Jacqueline Oi Ping 
Published: October 2019

PICO question
In canine acute diarrhoea with no identifiable cause, does a daily probiotic supplement in diet, compared to no probiotic supplement, provide better clinical outcomes?
Clinical bottom line
Five placebo-controlled trials suggested a daily oral probiotic supplement provides better clinical outcomes to dogs that have acute diarrhoea (present < 14 days) without an identifiable cause. However, the strength of the evidence is limited and there is uncertainty around the clinical relevance of the studies to some of the outcomes. The probiotic agents, dose, dosing interval, the feeding methods, diets and the duration of treatment were varied in these studies. These variations can lead to different clinical outcomes.
The Relationship between Religiosity, Self-Interest, and Impulse Buying: an Islamic Perspective
Authors: Hoetoro Arif , Hannaf Muhammad Said 
Published: October 2019

<p><span style="font-family: Times New Roman; font-size: medium;">The expansion of e-commerce dramatically changes the spending patterns which are found a significant number of impulse buying. Practical method and easy way to buy specific goods from e-commerce might be an important factor why customers spent their money more impulsively. Researches on this phenomenon showed that psychological values emerged from religiusity condition and self-interest encouragement play as self-regulation for controlling impulsive buying behavior. Viewed from Islamic economic perspective, this study seeks to configurate self-interest (<em>al-nafs</em>) into three levels namely <em>al-nafs al-ammarah</em>, <em>al-nafs al-lawwamah</em>, and <em>al-nafs al-muthmainnah</em> when <em>al-nafs</em> involved in online impulse buying. The first two layers of <em>al-nafs</em> refer to the level of self-interest which are material oriented, whereas the last one represents the highest level of self-interest which is spiritual oriented. By employing 134 repondents from e-commerce customers in Jakarta, the research findings revealed that there was no relationship between religiusity and <em>al-nafs al-ammarah</em> and <em>al-nafs al-lawwamah</em>. However, <em>al-nafs al-ammarah</em> (sig.= 0.000) and <em>al-nafs al-lawwamah</em> (sig.=0.040) positively influenced impulse buying. Meanwhile, there was strong relationship between religiusity and <em>al-nafs al-muthmainnah</em> (sig.= 0.000) in which this highest level of self-interest did not have relationship with impulse buying. These research findings have important implications that in order to regulate impulsive buying behavior, customers should control their self-interest and make it to be <em>al-nafs al-muthmainnah</em>. </span></p><p><span style="font-family: Times New Roman; font-size: medium;"> </span></p><em></em>
Islamic Versus Conventional Stock Market Indices Performance: Empirical Evidence from Turkey
Authors: Bayram Kamola , Abdullah Othman Anwar Hasan 
Published: October 2019

<p><em>Rapid growth of Islamic finance in general and Sharī`ah compliant stocks in particular arises the question whether Islamic funds/stocks have a better performance or there is no significant difference with the performance of conventional counterparts. This study has twofold objectives, firstly to compare the performance of Islamic and conventional stock market indices in Turkey, namely KATILIM50 and BIST 100 by using Two-Sample Test of Hypothesis over the period of 15 May 2015 to 31 December 2016. Secondly, to examine the causal relationship between both stocks markets indices in the short-run using </em><em>Granger (1969) Causality Test</em><em>. The findings of parametric Z-test reveals that there is no statistical significant difference between the performance of both indices the KATILIM 50 index and BIST 100 index in Turkey Stock Exchange Market during the time frame of the study. Further, the </em><em>Granger</em><em> Causality findings indicate the absence of causal relationship between the two stock markets indices in the short-run.</em> <em>This suggests that stock markets in Turkey are informationally efficient and non-violated with the Efficient Market Hypothesis with respect to the available information of both indices. The findings of this study therefore will provide useful channel for Muslim investors to fully participate in the Turkish capital market that is Sharī`ah complaint and fulfil their religious belief without sacrificing any financial performance.</em></p>
A Three-Phase Study on Pre-Flush Stage in Sandstone Acidizing: Experimental and Modeling Analysis of Evolved CO2 in an Oil and Aqueous Environment
Authors: Muhemmed Sajjaat , Kumar Harish , Nasr-El-Din Hisham 
Published: October 2019

Abstract
This paper presents a detailed study on the effects of evolved CO2 due to carbonate mineral dissolution, and its ensuing activity, during the preflush phase in matrix acidizing of sandstone reservoirs. Sandstone acidizing in the presence of different rock saturations conditions is seldom investigated. The presence of oil during preflush may change the perception of acid with carbonate minerals. The cores were acidized via coreflood experiments and validated through simulation studies using three-phase numerical model. The acid was injected into 100% brine saturated rock with 15 wt% hydrochloric acid (HCl) at a temperature of 150 F and at a back-pressure of 1200 psi. This was done to calibrate and initially test the numerical model. The numerical model was able to match the performed coreflood experiments at different saturation conditions to a good level of accuracy. The HCl-calcite and HCl-dolomite chemical reaction parameters were fixed in all cases to ensure consistency in analyses. Oil production was observed, with an average of 25% recovery of the residual oil in place at pore pressures of 1,200 psi. The swelling of oil by the soluble CO2 was inferred as the main mechanism for additional oil production during the 15 wt% HCl injection. A direct symmetry was observed between the oil recovery and average CO2 moles in the oil phase based on the numerical model prediction of the conducted experiments. The recovery curve flattened once surrounding oil reached its full-saturation level with CO2. The successful capability of the numerical model to effectively mimic the preflush stage sets a new bar in the area of sandstone acidizing. The potential of CO2, a by-product of acidizing, towards its contribution in swelling the surrounding oil, and thus mobilizing the trapped oil has been depicted in this study.
The Strategy of Production Operation for Extended Lateral Shale Wells
Authors: Lu Haidan , Zhang Cathy , Yuan Zhaoguang , Polatbekov Dauren , Fai-Yengo Ghislain , Karimi Hassan 
Published: October 2019

Abstract
This paper reviews the U.S. shale well drilling and completion strategies in recent years. A data-driven approach is taken to correlate the production performance to the lateral length focusing on the Midland basin and Delaware basin. Six lateral length cases were studied, ranging from 5 thousand to 17.5 thousand feet. To investigate the shale well lateral length impact on production performance, multi-disciplinary studies were conducted by taking into account the combinations of time-dependent fluid properties, well trajectory, reservoir characteristics, completion design, and wellbore multiphase flow effect. Artificial lift and operational strategies were discussed and developed for long lateral length wells. Economics analysis was performed to study the feasibility and sustainability of production operation strategies.
Improved Understanding of Vertical Barriers / Baffles by History Match Analysis
Authors: Al-Sayegh Saleh , Prasad Raj Kishore , Tiwary Asheshwar , Joshi Deepak 
Published: October 2019

Abstract
Minagish Oolite reservoir is a prolific limestone reservoir in Umm Gudair field underlain by an active aquifer situated in West Kuwait. The field has been on production for over 50 years and has been experiencing rising water production levels in the recent years. Understanding the movement of water in the reservoir is vital for maximizing oil recovery.
During the producing life of the reservoir, the vertical movement of water is influenced by presence of flow barriers / baffles in the reservoir and how they are distributed in the vertical as well as areal direction. Understanding the lateral distribution of the flow barriers to fluid movement in the vertical direction has been a challenge throughout the production history of the field. Efforts have been ongoing in the past, to understand the movement of aquifer water in the vertical direction based on analysis of openhole log data, structural configuration, stratigraphy, well performance, production logging (PLT) results etc. These have resulted in developing a respectable level of understanding of the distribution and strength of barriers/baffles and their effectiveness in the field performance.
In a recent campaign to reduce the rapidly increasing volume of water produced from Minagish Oolite reservoir, a large number of workovers were carried out based on the current understanding of the vertical barriers / baffles, resulting in bringing down the water-cut level appreciably. The paper analyzes the results obtained from carrying out the numerous workovers for water shut-off in the recent campaign. This analysis has been utilized in an attempt to improve the history match in the dynamic reservoir simulation, especially the water-cut history match. Whereas good match of long water-cut history before the recent water shut-off jobs indicates absence of serious issue of well integrity, transmissibility modifiers in the simulation model were required, in order to improve water-cut history match in the post water shut-off period. Thus, there is vast improvement in the simulation team's understanding of the lateral distribution and strength of barriers / baffles. This has greatly aided in the formulation of more pragmatic plans for future workovers involving water shut-off by squeezing-off or isolating watered out layers. The result is a more robust prediction of production profile from the future field development activities.
The paper presents how the integrated approach of the open-hole, cased hole logs data with field performance in the history match process of simulation helps in the improvement of reservoir simulation modeling.
Reviving Two Offshore Oil Wells by Coiled Tubing Gas Lift System Using the Reservoir Gas Cap Energy
Authors: Mhemed Mohamad , Elrotob Nagib , Elsadawi Abubakr , Ben Abdalla Mohamed , Sherik Ayoub 
Published: October 2019

Abstract
For two wells, performing continuous N2 lifting in an offshore environment for weeks to produce a large quantity of aquifer water that had crossed into oil-bearing zones during a long shut-in period would involve high operational and logistical risks and require a large capital investment, which was not proven economical. As an alternative, a Rigless coiled tubing (CT) gas lift system, which uses gas cap energy, was chosen as an efficient, reliable, and cost-effective technique to revive oil production from the two offshore wells.
The technique involved running CT inside the production tubing. The CT was then hung up on an additional tubing hanger installed on the production tree. The injection rate and injection pressure were supplied by a choke manifold connected to a gas well that had high wellhead pressure. The gas was injected down continuously through CT, which lifted the standing water in the production tubing annulus to surface. Production logging tools, simulation models, and flow performance applications were used to
Estimate the volume of water crossed into oil-bearing zones Identify the time needed to revive the wells
The CT gas lift system was found to be the most efficient and cost-effective way to revive production from dead wells. In this application, the free available energy of the only gas well in the field, which was drilled in the gas cap, was used to supply the required gas rate and injection pressure.
The following steps were completed with the collaboration of all parties:
Successful installation of CT in production tree via additional retrievable tubing hanger Gas pressure and gas rate supplied and controlled by a choke manifold Real-time support to guide the operation towards success Successful retrieval of CT when the operation was over
As expected, each well took nearly 45 days of continuous lifting to reach the pre-estimated water cut for the wells to be self-lifting. CT was then successfully retrieved, and the wells continued flowing naturally with considerable rates. The oil rate gain for both wells was around 4,000 BOPD.
This methodology has been approved and adopted by the operator for future similar cases as a cost-effective method to revive oil production from dead wells.
The novelty of the technique comes from the utilization of gas cap energy in the form of high wellhead pressure of the only gas well in the field, which was drilled in the gas cap, as a source of injection pressure and injection rate. This innovative technique made reviving dead wells possible without changing wellhead configuration or investing in weeks of costly N2 kickoff operations.
The Application of Chemical Tracer Monitoring in Multi Stage Acid Frac Wells in the Mature Bahrah Field, North Kuwait
Authors: Qamber Anood , Hassan Mohammad , Ali Abdulaziz 
Published: October 2019

Abstract
Field development of mature fields in Kuwait Oil Company have seen a paradigm shift over the past couple of years, to adopt the latest field proven technology to exploit the remaining reserves. The Mauddad formation in the Bahrah field is a low permeability with high viscosity oil which was previously developed with vertical cased and perforated wells with electrical submersible pumps (ESP). Inflow monitoring also posed a challenge to conduct production logs due to challenges with the Y-tool of the ESP.
In light of these challenges, it was decided to drill horizontal wells, installed with multi-stage frac completions with acid being the stimulant. The described solution was considered a recent success because of the 300% increased production compared to offset vertical wells over the same producing period. However, ESPs are still required to lift fluids to surface in these horizontal wells and the understanding of inflow performance of each stage remained a monitoring challenge. A solution was identified to utilise intelligent inflow tracers after the successful pilot in another field development in Kuwait, using passive inflow control devices (ICD) with ESPs. Therefore, it was decided to pilot the same technology which provided intervention free, permanent downhole monitoring. However, the additional challenge was to prove that inflow tracers could survive the harsh acid operation and continue to function as a reliable downhole sensor thereafter.
The wells installed with intelligent chemical inflow tracers are used to provide a trend assessment of the clean-up phase of production, productivity assessment information for each stage and to event monitoring such as identifying the location of water breakthrough. Fluid samples collected from the surface flow lines were analyzed for unique chemical tracer signatures and interpreted the corresponding tracer signals. The monitoring campaigns have provided an improved understanding of fracture efficiency which has translated to frac design optimsation and also reduced subsurface uncertainty.
This paper discusses the chemical sensor design, integration of the sensors, run in hole procedure, sampling, analysis and interpretations of multi-stage acid frac wells, penetrating the Mauddud reservoir. Several wells were installed with chemical sensors adjacent to the sliding sleeves compartmentalized with swell packers in horizontal producing sections of up to 3,000-ft. The post operation interpretation revealed that chemical sensors functioned after the acid jobs and revealed how each stage performed from the frac clean up operation and how productivity changed over the life of the well.