bluuebunny/crossref_metadata_2025_split huggingface dataset:
You don't need to administer a placebo to elicit a placebo effect: Social factors trigger neurobiological pathways to enhance sports performance
Authors: Davis Arran J. , Hettinga Florentina , Beedie Chris 
Published: July 2019

AbstractThe placebo effect is traditionally viewed as a positive outcome resulting from a person's belief that an inert substance is in fact an active drug. In this context, it is often viewed as an intrapsychic phenomenon. However, most placebo effects reported in scientific research result from social interactions. These might be explicit, such as the description and administration of a treatment by a practitioner, or less explicit, for example, the recipient's perceptions of the practitioner's credibility, expertise, or confidence. On this basis, placebo effects are arguably social in origin. Many phenomena in sport are likewise social in origin, from the facilitation effects of a home field crowd or a cohesive team, to anxiety induced by an expert opponent or perceived underperformance. Such social effects have been the subject of research not only in social psychology, but also in experimental physiology. Emergent research in cognitive and evolutionary anthropology suggests that these social effects can be examined as a form of placebo effect. This suggestion is not a speculative position predicated on social and placebo effects sharing similar environmental cues and outcomes, but one based on a growing database indicating that drug, placebo, and social effects operate via common neurobiological mechanisms. In this paper, we examine the theoretical and empirical overlap between placebo and social effects and describe emergent research reporting specific brain pathways activated by socio‐environmental cues as well as by drugs and placebos. We do so from three perspectives: the competitor, the teammate, the researcher.
Association of plasma asymmetric dimethylarginine concentration changes with intradialytic hypotension and hypertension in chronic hemodialysis patients
Authors: Ali Zulkhair , Riyadi Ichram , Akbar Yusuf A , Yakub Rahadiyanto Kemas 
Published: July 2019

Abstract
Intradialytic hypertension and hypotension are both independently associated with increased morbidity and mortality among patients with chronic hemodialysis. Prior studies investigate the role of endothelial dysfunction in the mechanism of adverse intradialytic blood pressure changes. The aim of the current study was to investigate the association of plasma asymmetric dimethylarginine (ADMA), a marker for endothelial dysfunction, concentration changes pre-to-post-dialysis with both intradialytic hypertension and intradialytic hypotension. The study was a case-control study of 36 patients with chronic hemodialysis (12 patients in each group for intradialytic hypertension, intradialytic hypotension, and stable blood pressure). Intradialytic blood pressure changes were defined as increased or decreased systolic blood pressure pre-to-post-dialysis ≥10 mmHg in ≥4/6 consecutive HD sessions. Dialysis resulted in significant reduction of the plasma ADMA concentration pre-to-post dialysis in each group (0.26±0.15µmol/L, p=0.00 in patients with intradialytic hypertension; 0.18±0.15µmol/L, p=0.01 in patients with intradialytic hypotension; 0.17±0.09µmol/L, p=0.00 in patients with stable blood pressure). The reduction of plasma ADMA concentration in patients with intradialytic hypertension was significantly different compared to control group (p=0.02), albeit the insignificant difference in patients with intradialytic hypotension (p=0.78). Plasma ADMA concentration changes pre-to-post dialysis was considered as an insignificant risk factor (OR=1.96, 95%CI [0.38-9.93, p=0.41]) for intradialytic hypertension.
Antibacterial activity of various calcium hydroxide solvents against Fusobacterium nucleatum and Enterococcus faecalis
Authors: Rusdiana Puspa Dewi Siti , Agung Santoso Riki , Sujatmiko Billy , Seto Wibowo Ickman 
Published: July 2019

AbstractFusobacterium nucleatumandEnterococcus faecalisare the most common types of bacteria found in root canal failure. Various ways are done to eliminate such pathogens, one of them by adding various solvents to increase the antibacterial activity of intracanal calcium hydroxide medication. The purpose of this study was to determine the antibacterial activity of various calcium hydroxide solvents againstFusobacterium nucleatumandEnterococcus faecalis. The antibacterial activity of chlorhexidine 2%, glycerin, povidone-iodine 2% and distilled water (control group) as calcium hydroxide solvents were tested in vitro. Zone of inhibition of solvents was observed. The results showed that the remarkable inhibition of the bacterial growth was shown by adding glycerin solvent to calcium hydroxide. This activity was due to its ability in increasing alkaline activity of calcium hydroxide. Hence, glycerin solvent of calcium hydroxide can be used to increase antibacterial activity against root canal microbes.
Identification of methicillin resistant staphylococcus aureus (mrsa) using cefoxitin disc diffusion test and dupleks polymerase chain reaction in Jambi city hospitals
Authors: Humaryanto  , Simanjuntak C A , Hanina  , Lipinwati  
Published: July 2019

Abstract
Methicillin Resistant Staphylococcus aureus (MRSA) remains the important health problems because the frequency of isolate MRSA tends to increase in the world. Cefoxitin disc diffusion test and detection of MecA gene using PCR were used in MRSA identification. FemB gen is used for spesies SA confirmation. FemB encodes enzyme in cross-linking peptidoglycan in SA. This research aimed to identified MRSA from clinical samples of hospitalized patients in Jambi city using cefoxitin disc diffusion test and dupleks PCR. This research has been conducted in Biomedic Laboratory of Medical Faculty of Jambi University during periode June – November 2017. Swab of 76 festering wounds were grown on Mannitol Salt Agar medium which incubate at 30ºC 18–24 h. The Yellowish colony confirmed with gram staining and tested using Staphytect plus Test DR 850 M. Identified of MRSA using cefoxitin disc diffusion test and dupleks PCR. This research reported cefoxitin-RSA was detected in 41,67% of SA, MecA gene was detected in 45,83% of SA. MecA gene was detected in 100% of cefoxitin-RSA and 7,14% of cefoxitin-SSA. FemB gene was detected in 8,33% of cefoxitin-RSA, and 64,28% of cefoxitin-SSA. Detection of MecA and FemB genes by PCR for identification of MRSA is sensitif and fast.
Pre and intraoperative findings of chronic otitis media
Authors: Ghanie Irwan Abla , Widyasari Fiona , Suyanti  , Gunawan Amelia 
Published: July 2019

Abstract
Chronic otitis media (COM) is still highly prevalent in developing countries and often become main cause of deafness and morbid complication. Appropriate management may decrease the morbidity and mortality rate. The aim of the study are to evaluate preoperative and intraoperative finding among COM patients. A descriptive study was conducted at Mohammad Hoesin Hospital Palembang from April 2015 to April 2018. A secondary data was taken from medical records. A total of 252 patients were included in this study with the highest incidence was at 21-30 years old group (29,36 %) with male predominance. The most frequent preoperative assessment were total perforation of tympanic membrane in 104 patients (41.26 %), moderately severe mixed hearing loss in 61 patients (24,2%), and mastoiditis with cholesteatoma in computed tomography (CT) finding in 158 patients (62,69 %). In intraoperative finding, there were 202 patients (80,15%) with cholesteatoma whereas 103 patients (40,87 %) with granulation tissue. Ossicular chain destruction were found in 141 patients (55,95 %). Canal Wall Down Mastoidectomy (CWD) were performed in 190 patients (75,39 %). The prevalence of COM with cholesteatoma at Mohammad Hoesin hospital is still high. Operative management using CWD technique is preferred in cases of COM with cholesteatoma.
Wild honey 50% inhibits growth of streptococcus viridans in vitro
Authors: Jeani N , Andina Meizly 
Published: July 2019

Abstract
Honey has peroxide hydrogen and flavonoid as an anti-bacterial activity. Streptococcus viridans is known as a normal flora in the mouth cavity furthermore it can become a pathogen. Several Streptococcus viridans make an important role in forming a caries teeth. The objective of this study is to determine a comparative the inhibition power of wild honey 50% with chlorhexidine gluconate 0,2% against the growth of Streptococci viridans bacteria. This research is an experimental posttest only with control group design. Streptococcus viridian was taken from the Regional Health Laboratory. The groups are wild honey 50%, chlorhexidine gluconate 0.2%, and aquadest. The study was conducted at the Laboratory Health Center of North Sumatra Province. Antibacterial activity of wild honey 50% against Streptococcus viridans in vitro shows that honey has antibacterial inhibitory power. Mann Whitney test results for each wild honey 50% group with chlorhexidine gluconate 0.2% group obtained a significant P value of 0.007 (α <0.05). Wild honey 50% group with negative aquadest control group obtained a significant p-value of 0.000 (α <0.05). Wild honey 50% can inhibit the growth of Streptococcus viridans, though still has a significant difference (p <0.05) compared to chlorhexidine gluconate 0.2%.
The ratio of monocytes to lymphocytes accuracy as tuberculosis predictor
Authors: Liana Phey , Brestilova Brillia , Yakub Rahadiyanto Kemas 
Published: July 2019

Abstract
Tuberculosis is one of the top ten death’s causes in the world and even cause more deaths than HIV in 2015. In the same years, there are 10.4 million new TB case incidences with case notification rate is 142/100,000 population globally. Monocytes and lymphocytes play an important role in the body’s defense mechanism against tuberculosis. Tuberculosis can induce increased monocytes and decreased lymphocytes. The ratio of Monocytes to lymphocytes is expected to be used as predictors of tuberculosis. Therefore, this study was conducted to determine the ratio of monocytes to lymphocytes accuracy as tuberculosis predictor. This diagnostic study was done at dr. Mohammad Hoesin General Hospital Palembang. Samples of this study had been taken from medical records which fulfilled the inclusion and exclusion criteria. The study was analyzed using SPSS version 22.0. The sample of the study was 101 tuberculosis subjects. Most of the subjects were men (70,3%) and were 36-45 years old group (25,7%). The cut-off value of 0,476 allowed the discrimination of tuberculosis with positive bacterial culture from negative bacterial culture, with a sensitivity of 95,1% and a specificity of 70%. Therefore, we concluded that the ratio of monocytes to lymphocytes can be considered as an early predictor marker of tuberculosis.
The effectiveness of white turmeric (Curcuma zedoaria) extracts as root canal irrigation alternative material on Streptococcus viridans
Authors: Dwi Puspita Suci , Yulianti Rinda , Mozartha Martha 
Published: July 2019

Abstract
Irrigation is one of the important principles of triad endodontic to eradicate microorganisms in root canal infections. The rhizomes of white turmeric (Curcuma zedoaria) contain compounds that have antibacterial activity and has a potential to be used as an alternative for irrigation solution. The study was done to evaluated the antimicrobial activity of white turmeric extracts againts Streptococcus viridans. This experimental in vitro study used four extracts of white turmeric with various concentrations (100%, 50%, 25%, 12.5%) as tested groups, 2% Chlorhexidine as positive control and distilled water as negative control group. Solid BHI medium containing Streptococcus viridans was perforated with a cork borer and dropped by 5 mL solution according to each group. The inhibition zone diameter was measured to evaluate antibacterial efficacy. Data were analyzed by One Way ANOVA and continued by Post-hoc Bonferroni. The results showed that all groups had significant differences. The largest growth inhibition zone was 100% white turmeric extracts group and had strong antibacterial effect, followed by 50% and 2% chlorhexidine, while 25% and 12.5% extracts had moderate antibacterial effect. Based on the results of this study it can be concluded that white turmeric extracts can inhibit the growth of Streptococcus viridans.
The effect of black cumin (Nigella sativa) extract on spermatozoa morphology of male albino rats (Rattus norvegicus) after induced with 2-Methoxyethanol
Authors: Rahmadaniah Indah , Salni  , Marwoto Joko , Darmasari Sagita 
Published: July 2019

AbstractThe purpose of this study was to determine the effect of 2-ME and administration of black cumin extract on sperm motility of male white rats. The research method used a completely randomized design (CRD) of 24 male white rats. The 2-ME solution is given intraperitoneally, and black cumin extract is given orally. The samples were divided into 6 groups, treatment given for 21 days. Data analysis used One Way ANOVA and continued with Duncan’s test. The results, after induced 2-ME spermatozoa morphology mean as much as 31.25%, after being given average black cumin extract spermatozoa morphology of 89.75%, after administration of 2-ME and black cumin extract dose of 1.2 g/kgBW average morphology of spermatozoa 35.75%, the dose of 2.4 g/kgBW mean morphology of spermatozoa was 47.00%, while the dose of 3.6 g/kgBW resulted in an increase in morphology of spermatozoa by 57.25%. Conclusion, 2-ME induction can reduce the morphology of male white rat spermatozoa. While the administration of black cumin extract can improve the morphology of male white rat spermatozoa. The administration of black cumin extract at a dose of 3.6 g/kgBW after 2-ME induced can improve the morphology of the sperm and is significantly different.
Comparison of leptin serum levels between systemic lupus erythematosus (SLE) and non-SLE patients at Mohammad Hoesin Hospital Palembang
Authors: Reagan Muhammad , Aprilia Salim Nelda , Junaidi  , Hermansyah  
Published: July 2019

Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease, in which immune system mistakenly attacks healthy tissues such as joint, skin, kidneys, brain, and other organs. The dysregulation occurs in the immune system and produces various inflammatory autoantibodies and cytokines in SLE patients. Leptin plays a role in the immune system’s reaction to autoimmune diseases related to the inflammatory response, therefore it acts as a potential target in the development of therapy in the autoimmune disease. Serum leptin levels in SLE patients may be elevated, and are associated with the involvement of lupus nephritis, although it still unclear. A cross sectional study was conducted with a number of 70 subjects, each group consisted 35 SLE and 35 non-SLE patients who were treated as outpatient in the period of April - November 2016 at internal medicine Mohammad Hoesin hospital Palembang. We found that, leptin serum levels in the SLE group were higher than the non-SLE group but showed no significantly different.
Correlation between serum lipid profile and acne vulgaris severity
Authors: Citra Utami Olivia , Kurniawati Yuli , Diba Sarah , Irsan Saleh Mgs. 
Published: July 2019

Abstract
Minimal reports are available on the relation between blood lipids and acne vulgaris (AV). Sebaceous glands are the key roles in AV pathogenesis, while the sebum lipids in sebaceous glands are one of the main factors for AV development. Recently, any changes in the proportions of blood lipoprotein are known to be related to AV incidence. The study was conducted to determine the correlation between serum lipid profile and AV severity. Sixty-two study participants, who met the inclusion criteria based on the consecutive sampling method, were enrolled in the study. The levels of lipid profile were measured and the AV severity was determined by Lehmann criteria. Results showed that the majority of participants had moderate AV (56.5%) and there was an increase in LDL-C levels (54.8%). There was a statistically significant correlation between TC levels and AV severity (p = 0.001; r = 0.332) as well as a strong correlation between LDL-C levels and AV severity (p = 0.000; r = 0.622). The study also found a tendency of HDL-C levels decrease, followed by increased AV severity, and vice versa (p = 0.041; r = −0.229). The study suggested that there was a significant correlation between serum lipid profile and AV severity.
Climate-driven changes in CO2 emissions associated with residential heating and cooling demand by end-century in China
Authors: Zhang Nan , Zhou Yuntao 
Published: July 2019

Abstract
Global climate change affects residential heating and cooling demand that further contributes to carbon dioxide (CO2) emissions. The spatio-temporal changes in magnitude and distribution of the demands in China are poorly understood. In addition, few studies have focused on the future impact of climate change on long term residential CO2 emissions in China. Here we investigate regional changes in CO2 emissions calculated from degree-days. Our results show that heating degree-days (HDD), cooling degree-days (CDD) and their associated CO2 emissions all have large spatio-temporal variability. We find that average durations of HDD and CDD are predicted to be 34 days shorter and 63 days longer by the end of century (2071–2100) than history (1976–2005). CO2 emissions from residential cooling and heating are predicted to increase 218% and decrease 30% in China by end-century, respectively. We further examine the CO2 emissions from residential heating and cooling in five cities representative of five contrasting architectural climate zones in China. The CO2 emissions from heating of these cities are projected to decrease by end-century: 26% in Harbin, 32% in Beijing, 43% in Shanghai, 42% in Kunming, and 61% in Shenzhen. The CO2 emissions from cooling of these cities all increase by end-century: 436% in Harbin, 215% in Beijing, 223% in Shanghai, 765% in Kunming, and 149% in Shenzhen.
Vegetable Oil-Based Lubrication in Machining: Issues and Challenges
Authors: Mahadi M A , Choudhury I A , Azuddin M , Yusoff N , Yazid A A , Norhafizan A 
Published: July 2019

Abstract
The use of vegetable oil as a replacement for conventional mineral-based lubricant has gained many interests in recent years from the machining industries. This is due to the problematic issues with the use of conventional mineral-based lubricant that can cause negative effects on the manufacturing cost, operators’ health and the environmental. As vegetable oil is renewable, biodegradable, and non-toxic and has remarkable tribological characteristic from its triglycerides structure, it has been identified as the best replacement for mineral-based cutting lubricant. However, formulating vegetable oil into machining lubricant has its challenges where it must overcome its nature of poor low-temperature properties and low oxidative stability. Therefore, this paper will elaborate the present issues and challenges in formulating green machining lubricant using vegetable oil and its stand under sustainable machining. This includes the method and technique of formulating vegetable-based lubricant and the output performance obtained from vegetable-based lubricant under machining in comparison to the conventional mineral-based lubricant. The result shows that utilizing the vegetable-based lubricant at minimum quantity has comparable or better performance to conventional mineral-based lubricant in terms of surface finish. Therefore, the use of vegetable oil has its challenges and issues as machining lubricant, but it is one of the current best viable alternatives to the mineral-based lubricant in promoting sustainable machining.
Minimization of Cutting Force by Optimizing the Cutting Parameters Using Taguchi Method in Turning
Authors: Bhuiyan M S H 
Published: July 2019

AbstractThe changes in magnitude of cutting force demonstrate the different occurrences in turning. The pattern of cutting force signal illustrates the cutting tool conditions and also corresponds to the changes in the cutting parameters. Obtaining an optimal cutting condition would significantly minimize the cutting force in turning, can reduce respective power consumption and consequently, extent the life of cutting tool. Choosing the optimal cutting parameters in turning would safeguard the cutting tool from catastrophe and could ensure a better surface finish of workpiece. From the orthogonal array and S/N ratio, the cutting speed of 120 m/min, feed rate of 0.32 mm/rev and depth of cut of 1 mm is found to be optimum cutting parameters. The magnitude of cutting force is found to be minimal and the surface finish is seen to be comparatively low at this cutting condition. The tool life at this cutting condition is found to be the longest for that particular tool – workpiece combination.
Effect of Main Cut and Multiple Trim Cuts on Surface Integrity of 2379 Steel
Authors: Jaafar N A , Abdullah A B 
Published: July 2019

Abstract
Wire electrical discharge machine (WEDM) is commonly used in producing tool and die parts. However, it rarely achieves the optimum machining condition due to the inappropriate selection of WEDM machining parameters. In this study, 2379 steel which own properties equivalent to SKD 11 was used as die material. Four main wire electrical discharge machine (WEDM) cutting parameters, namely pulse on time, pulse off time, servo voltage, ignition pulse current has been experimentally studied and optimized at both levels, main cut and multiple trim cuts using Taguchi Method. Based on Taguchi Method optimization and analysis of variance (ANOVA), the result found that pulse on time and pulse off time give significant effect on white layer thickness for both main cut and multiple trim cuts. According to Signal to Noise (S/N) ratio response, the optimal combination of A2B3C2D1 and A1B3C3D1 gave the lowest white layer thickness for main cut and multiple trim cuts respectively. It also has been found that the hardness of machined surface with multiple trim cuts is higher compared to main cut.
State of The Art Review of Quality Control Method in Automotive Manufacturing Industry
Authors: Hafizi M , Jamaludin S N S , Shamil A H 
Published: July 2019

AbstractQuality control plays a vital role in automotive industry to ensure the standard of the end product are accepted by customer and stay competitive in this industry. Company must remain updated to enhance and improve method in defining their product quality and maintain the continuous quality improvement. The purpose of this paper is to provide an overview of implementation quality control method used in automotive industry in reducing defects. Methodology used for this paper is extensive review of existing paper and literature. This paper provides an overview of quality control method, advantages and disadvantages of the method. The literature in this subject is fairly limited. There are very limited discussions of quality control method in the automotive industry. Therefore, great effort to carry out the study was done on the manufacturing environment particularly in the automotive part.