bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comprehensive study of characteristic signs of defects detected during magnetic powder control at the final stage of production of seamless hot‑rolled pipes
Authors: Naumenko E. A. , Rozhkova O. V. , Kovaleva I. A. 
Published: March 2023

Defects on the outer surface of seamless hot‑rolled steel pipes are formed both as a result of the defects’ transformation in the surface and macrostructure of the initial workpiece, and due to non‑compliance with the rolling technology. Timely detection of defects and elimination of the causes of their formation, allows you to get high‑quality products with high operational reliability. Detection of violations of technology, control of the technological process, carrying out metallographic studies allow classifying defects and establishing the nature and causes of their formation.The article presents the results of a metallographic study of a defect on the outer surface of a hot‑rolled seamless pipe. The genetic and morphological signs of the defect were determined. Descriptions of the appearance of the defect, the microstructure in the defect zone are given. A comparative analysis of the defect detected during magnetic powder control with defects on experimental pipe blanks with artificial defects was carried out. Based on the data obtained, the causes of the defect formation are determined, its classification is given.
Thermal Conductivity of Rocks and Estimates of Heat Flow in the Lena–Anabar Interfluve (Siberian Platform)
Authors: Duchkov A.D. , Ayunov D.E. , Yan P.A. , Sivtsev A.I. , Sokolova L.S. 
Published: March 2023

Abstract
—We present results of measurements of the physical properties (thermal conductivity, porosity, permeability, and density) of 65 air-dry sedimentary-rock samples from the cores of six deep wells drilled in the Lena–Anabar interfluve. The rocks are compact low-porosity, almost impermeable siltstones, sandstones, and dolomites mainly of Paleozoic and Precambrian ages. Correlations of thermal conductivity with porosity and bulk density have been established. The available information about the thermal conductivity of rocks as well as the production thermograms recorded after drilling made it possible to estimate the geothermal gradient and heat flow (q) for the Ust’-Olenekskaya-2370, Charchykskaya-1, Khastakhskaya-930, and D’yappal’skaya-1 wells. The gradient was calculated from the temperature values at the lower boundary of the permafrost (0 ºC) and at the bottom-hole. The determined heat flow varies from 37 to 70 mW/m2. These q estimates are consistent with the available data on the distribution of heat flow in the north of the Siberian Platform. The proposed method for heat flow estimation is worthy of use in other northern regions of Siberia for obtaining more geothermal data.
Nurturing Technical Professional (TP) Competency Through Structured Development Program
Authors: Yusof Yushafidi Bin , Hadi Sriyanta , Mohd Isa Farah Irawati Binti 
Published: March 2023

Abstract
Technical Professional (TP) has been identified as one of the critical positions in PETRONAS that plays an important role in providing technical assurance in business deliveries. The intent of this paper is to describe the methodology and processes that been implemented in PETRONAS Upstream business to develop TP specifically in Operation and Engineering area. An inhouse program known as "Technical Specialist Program (TSP)" has been established as a solid capability development framework for internal talents in Upstream as a structure guidance for the talents to become TP undergoing the progression throughout the 3 levels of TP i.e. Staff, Principal and Custodian level.
The program was design focusing on acquiring and strengthening the competencies on technical-know-how, including commercial and leadership elements. The growth of internal talent vs. experience hire talent in TP positions have shown significant improvement post 3 years of TSP implementation which reflected in growth from 35% to 71.8% of TP positions been filled by the internal pool of talent. Subsequently, successor ratio of TP position vs internal talent is progressing gradually from 1:1 to 1:3 as per the company's aspiration.
The outcome of this paper will be beneficial and valuable to the industry practitioners for oil & gas industry specifically, as well as any related and relevant industry in developing technical talent for critical positions that requiring niche area of specialization. This paper summarizes the approach, best practices and lesson learnt based on the journey and experiences in developing TP through TSP.
Progesterone inhibits lipopolysaccharide-induced oxidative stress through Nrf2/Keap1 pathway in bovine endometrial epithelial cells
Authors: Cui Luying , Guo Jing , Zhang Qi , Zhang Jiaqi , Yuan Changning , Dong Junsheng , Liu Kangjun , Guo Long , Li Jun , Wang Heng , Li Jianji 
Published: March 2023

Abstract
Postpartum uterine infections can cause endometrial
inflammation and oxidative damage. Progesterone makes the animal
more susceptible to uterine infections, and has been proved to
inhibit uterine innate immunity and reduce tissue oxidative damage.
But the effect of progesterone on the oxidative damage in bovine
endometrium has not been reported. This study investigated the
effect and mechanism of progesterone on oxidative damage in primary
bovine endometrial epithelial cells induced by lipopolysaccharide
from Escherichia coli. As a result, lipopolysaccharide
induced cellular oxidative damage with increased content of
oxidative damage markers and decreased antioxidant enzyme
activities. Compared with the lipopolysaccharide group, there were
decreases in the levels of reactive oxygen species and
malondialdehyde, and increases in the activities of superoxide
dismutase and catalase, and total antioxidant capacity of cells
cotreated with progesterone and lipopolysaccharide. The potential
mechanism was explored by detecting the antioxidant gene expression
and the key protein levels of Nrf2/Keap1 pathway. The addition of
progesterone upregulated the relative mRNA abundance for
antioxidant genes and the key protein levels in Nrf2/Keap1 pathway,
and promoted NRF2 protein to enter the nucleus in cells stimulated
with lipopolysaccharide. The use of progesterone receptor
antagonist mifepristone reversed the antioxidative effect of
progesterone. In conclusion, progesterone inhibited
lipopolysaccharide-induced oxidative damage and activated
Nrf2/Keap1 pathway through progesterone receptor in primary bovine
endometrial epithelial cells.
Eye tracking technology to improve communication with intubated critical care patients: a randomized study
Authors: SZYMKOWICZ Emilie , BODET-CONTENTIN Laetitia , MARECHAL Yoann , EHRMANN Stephan 
Published: March 2023

Abstract
Background: Communication with patients undergoing mechanical ventilation in the intensive care unit represents a challenge. The aims of the study were (1) to describe communication difficulties related to mechanical ventilation as experienced by healthcare professionals and patients, and (2) to compare the use of a conventional low-tech communication board and a high-tech eye tracking technology-based device to improve communication effectiveness of mechanically ventilated patients in intensive care.
Methods: This prospective study consisted of a descriptive cross-sectional part describing the communication difficulties in the intensive care unit and an experimental randomized crossover part comparing the use of two technologically opposed augmentative and alternative communication interfaces. A mixed method approach was applied with a quantitative primary method and a qualitative complementary method. The numerical data were analyzed quantitatively using Mann-Whitney (ordinal variables) and chi-square (binary variables) nonparametric tests. The non-numerical data were analyzed qualitatively using thematization and categorization.
Results: A total of 101 healthcare professionals and 44 patients participated. Regarding the descriptive part, the communication difficulty analysis confirmed that mechanical ventilation constitutes a major problem in patient-caregiver communication. Regarding the quantitative experimental part, the treatment effects on transmitted messages quantity (2 median messages per exchange for the board versus 4 median messages per exchange for the eye tracking, p < 0.0001), success rate (80% for the board versus 100% for the eye tracking, p < 0.05) and patient satisfaction (68% negative satisfaction level for the board versus 100% positive satisfaction level for eye tracking, p < 0.0001) were significant. Regarding the qualitative experimental part, the communication content covered 8 themes for the board compared to 9 themes for the eye tracking and the use difficulties included 4 categories for the board as well as for the eye tracking.
Conclusion: The eye tracking device may further improve communication effectiveness of mechanically ventilated patients compared to the conventional communication board, both quantitatively and qualitatively.
Trial registration: Communication Strategies for Mechanically Ventilated Patients in Intensive Care Units, NCT05651984. Retrospectively registered on December 02, 2022 (https://clinicaltrials.gov/ct2/show/NCT05651984?term=NCT05651984&draw=2&rank=1).
Evaluation of AFP, AFP-L3%, and DCP in the diagnosis and after surgery prognosis of HCC
Authors: GU Lei , YAN Lei , BO Lin , SUI Xuemei 
Published: March 2023

Abstract
Background
To investigate the prognostic value of alpha-fetoprotein (AFP), ratio (AFP-L3%), and Des-γ-carboxyprothrombin (DCP) in the diagnosis and surgical resection of hepatocellular carcinoma (HCC).
Methods
Normal physical examiners were used as the control group, and the group of HCC patients admitted to our hospital was subdivided into HCC before treatment (HCC-BT) and HCC after excisional surgery (HCC-AS), based on the results of serum AFP, AFP-L3% and DCP assays. The diagnostic value of AFP, AFP-L3%, DCP, and their combinations in the diagnosis of HCC and prognosis of HCC after excisional surgery were compared and analyzed by applying the subject's receive operating characteristic (ROC) and area under the curve (AUC).
Results
There were 150 cases in the control group and 227 cases in the patient group, of which 89 and 138 cases were HCC-BT and HCC-AS, respectively (35 cases had recurred or new lesions were seen again), and the detection results of all indexes were statistically significant. ROC curve analysis showed that AFP, AFP-L3%, DCP, and their combinations showed a large difference in distinguishing HCC-BT from HCC-AS. AFP, AFP-L3%, and DCP had a high diagnostic value for screening HCC-BT, and DCP was slightly better than AFP and AFP-L3%, with a corresponding AUC of 0.74. When compared to normal controls, DCP, AFP, and AFP-L3% had no diagnostic significance for HCC-AS. Based on the temporary absence of recurrence after surgery as a control, DCP, AFP, and AFP-L3% again showed some prognostic value, and DCP was slightly better than AFP and AFP-L3%, with a corresponding AUC of 0.744.
Conclusion
In the diagnosis of HCC-BT, AFP, DCP and their combinations have high diagnostic values, and the combined test of the two has higher diagnostic value. In terms of HCC-AS prognosis, both AFP and DCP can be used as the main indicators of prognosis, but it is appropriate to establish new diagnostic criteria.
Enhanced Scalable Downlink Power Allocation for Centralized Scenarios in Cell-free Massive MIMO
Authors: Bora Gurmessa Meribo , Tulu Muluneh Mekonnen 
Published: March 2023

Abstract
Cell-free Massive MIMO is thought to be a potential technology to meet the high demands and growing users in B5G networks and towards 6G wireless networks. The cell-free technique benefits macro-diversity since the service APs are distributed over the whole network. Power allocation is crucial that lets us to enhances cell-edge users with the price of minimizing cell center power from APs. Even while many proposed heuristics schemes as well as Deep Neural Network (DNN) accurately allocate power for minimum user rates, they are ineffective in terms of prediction time complexity as the number of users grows from small to large. In this paper, a scalable DNN-based power allocation is proposed. The input for Neural Network is done by concatenating Large-scale fading and geographical user positions The simulation result shows that the proposed DNN can successfully allocate power almost resembles with Bisection Method and achieves 400 times faster prediction time and a 34.1% improvement in execution time.
Judgemental Analysis of Data and Prediction Using ANN
Authors: SARISA HEMANTH N S N , Singh Avjeet , sharma Govind , Mahajan Harshit 
Published: March 2023

Abstract
Everyday lot of posts are created in social media and several users make comments on the post. The comments can be positive or negative or moderate. Just by watching the post one cannot estimate whether the post is positive or not. Manual analysis of each comment of the post related document using Vader analysis takes a lot of time (approximately 5 to 6 hours- depending on number of comments). Also every post comments contains lots of redundant data which should be removed to get the exact sentiment of the post. We need to analyze the sentiment of the post within fraction of seconds by eliminating the redundant data. By using Machine Learning ANN Algorithms and applying them to social media post related datasets which contains a large number of comments. Initially dataset to be imported and at first stage data pre-processing is to be performed so as to remove the useless redundant information or data. The Algorithm uses ANN Data Dictionary which contains list of positive words and negative words to classify each comment in the dataset into positive or negative or moderate category. Along with this it will also gives the information about the sentiment of the post by visualizing the total positive, negative and moderate comments. Apart from this we are calculating the positive words and negative words number in each comment and also analyzing the sentiment of the post based on the keyword analysis. Graph and charts can be generated using Chart tool available in Visual Studio.
PM2.5 and chemical compositions in a naturally clean background air of Thailand's deep south, impact of transboundary haze from peatland fires and source apportionment by Principal Component Analysis
Authors: Chaisongkaew Phatsarakorn , Dejchanchaiwong Racha , Inerb Muanfun , Mahasakpan Napawan , Nim Nobchonnee , Samae Hisam , Intra Panich , Morris John , Ingviya Thammasin , Limna Thanathip , Tekasakul Perapong 
Published: March 2023

Abstract
Atmospheric particulate matter smaller than 2.5 micron (PM2.5) was evaluated at four sites in the lower southern part of Thailand during 2019-2020. Mass concentration and chemical bound-PM, including carbon composition e.g. organic carbon (OC) and elemental carbon (EC), polycyclic aromatic hydrocarbons (PAHs), and inorganic elements, were analyzed. The PM2.5 emission sources were identified by Principal Components Analysis. The average mass concentrations of PM2.5 in the normal period, which represents clean background air, from four sites was 3.5-5.1 µg/m3, whereas during the haze period, it rose to 5.4-13.5 µg/m3. The average OC/EC ratio in PM2.5 was 2.7-3.8 during the normal period, suggesting mixed sources of both vehicle combustion and biomass burning, whereas during strong haze period, the ratio rose to 3.3-5.2 indicating that biomass burning was a dominant source. This was consistent with the PAH diagnostic ratios. The average total PAHs and BaP-TEQ of PM2.5 during strong haze period were ~1.3-1.7 and ~1.2-1.9 times higher than those the normal period. The effects of external sources, especially the transboundary haze from peatland fires, are quantitatively pronounced because the background air in the study locations was generally clean. The PCA indicated that vehicle emission, local biomass burning, and secondary particles played a key role during normal period, whereas open biomass burning dominated during the haze phenomena. Backward trajectory simulations confirmed that the sources of PM during haze period was dominated by peatland fire in Sumatra, Indonesia due to south-west wind.
Reporting of Integrative Chinese and western medicine intervention in randomized controlled trials of ulcerative colitis: a scoping review
Authors: Zhang# Jialing , Deng# Jiashuai , Wang Nana , Wang Ping , Li Ji , Wang Yunhai , Cui Wanting , Liang Feng , Chen Peijin , Wang Juan , Han Fei , Chan Chungpong , Lyu Aiping , Bian* Zhaoxiang , Zhang* Xuan 
Published: March 2023

Abstract
Background
Integrative Chinese and western medicine (ICWM) is commonly used for the treatment of ulcerative colitis (UC) in clinical practice. However, it is unclear whether the details of ICWM interventions, such as selection rationale, implement design and potential interactions, were adequately reported. Therefore, this study aimed to assess the quality of reporting in the ICWM interventional randomized controlled trials (RCTs) of UC, and to identify the common problems if any.
Methods
Through a search of 10 international electronic databases, we identified RCTs of UC with ICWM interventions published in English or Chinese up to 23 February 2022. The general characteristics of included studies were described. The quality of reporting was assessed according to three checklists, including the CONSORT (Consolidated Standards of Reporting Trials) with 36 items (except for one item 1b about abstract), the CONSORT for Abstracts (17 items), and a self-designed ICWM-related checklist (27 items covering design rationale, intervention details, outcome assessments and analysis). The reporting scores of RCTs published before and after 2010 were compared.
Results
A total of 1,335 eligible RCTs were included. For the reporting compliance, the median score (interquartile ranges) of the CONSORT (72 score in total), the CONSORT for Abstract (34 score), and ICWM-related (54 score) items was 29 (26–33), 18 (14–21), and 13 (11–15), respectively. In addition, more than 50% items were evaluated as poor quality (reporting rate < 50%) among each checklist. Time period comparisons showed that reporting quality of included publications improved signifcantly after the CONSORT 2010 issued (P < 0.01).
Conclusion
Although CONSORT appears to have enhanced the reporting of RCTs in UC, the quality of ICWM specifics is variable and in need of improvement. Reporting guideline of the ICWM recommendations should be developed thus to improve their quality.
Chimpanzees engage in competitive altruism in a triadic Ultimatum Game
Authors: Sanchez-Amaro Alejandro , Maurits Luke , Haun Daniel 
Published: March 2023

Abstract
Partner choice promotes competition among individuals to be selected as a cooperative partner, a phenomenon referred to as competitive altruism. Our study explores chimpanzees' competitive altruism in a triadic Ultimatum Game where two proposers can send offers to a responder who can only accept one offer. Chimpanzees engaged in competitive altruism by sending higher offers on final vs initial trials in the triadic condition and not in a dyadic control condition. Chimpanzees also increased their offers after being rejected in the triadic condition. Finally, and most notably, second proposers strategically tried to outcompete first proposers by offering more before the responder could choose which offer to accept. Our results suggest chimpanzees consider how third-party interactions affect them and apply strategies to maximize their chances of being selected as cooperative partners.
Progress and success of Coronary Artery bypass Graft in TANZANIA, a retrospective review of patients operated at Jakaya Kikwete cardiac Institute: MUHIMBILI NATIONAL HOSPITAL
Authors: Nyawawa Evarist TM , Muhozya Angela N. , Kisenge Peter R. , Nyangasa Juma B. , Hailong Zhang , Byomuganyizi Moses , Ramadhan Khamis , Mahenda Shija , Ncheye Adelphina , Loth Alex , Mutagwaba Mujuni , Joseph Alex B. , Luchemba Robert , Assenga Mahawa , Wapalila David J. , Lyedenge Faraji , Mwasaga Fred , Nyawawa Evans E. , Mayala Henry , shilanaiman Hillary , Mlawi Vivianne , Janabi Mohamed , Mahalu William 
Published: March 2023

Abstract
Objective
The profile, success and progression of patients undergoing coronary artery bypass graft at the institute has not adequately been reviewed. Coronary artery bypass graft though a widely performed procedure in developed countries, it is uncommon procedure in a few centers found in developing countries. The procedure is skill and expertise demanding. The study aimed to evaluate patients’ characteristics, number and disposition of patients after coronary artery bypass graft surgery.
Methods
This was a retrospective study that enrolled all patients who underwent coronary revascularization at the centre from May 2016 through November 2022. Patients’ demographic was entered into a structured data sheet, excluded were those whom their surgical and clinical details could not be retrieved. Preoperative clinical details, intraoperative and postoperative patients’ profile were recorded and entered into a data sheet in SPSS version 20 program and analyzed; Chi square (χ2) was used to compare categorical variables.
Results
There was a total of 220 patients who underwent coronary artery bypass graft from May 2016 through November 2022. Male patients were 172 (78.2%) and female patients were 48(21.8%). Male patients outnumbered female patients by 3.6 folds. The minimum age was 42 years and maximum were 89 years with a mean year age of 63.7 ± 8years. The majority of patients were overweight and obese in 73%. The mean duration of presentation was 13.5 ± 8.6 months and the overall early mortality rate was 10.5%.
Conclusion
The key to a successful of a well-established cardiac centre in sub-Saharan countries of Africa and to any newly established cardiac center requires government commitment to invest in human resource; that in turn forms a local core cardiac team that should work focused to archive its goals. Investing into a well-planned structure that fits the requirement of a cardiac Centre. There should be a system that ensures availability and constant supply of consumables. The success and progress of open heart surgery demonstrated by Jakaya Kikwete Cardiac Institute from simple open heart procedures to complex surgical procedures required a well-planned short and long term plan with good coordination and focus, backed by unwavering government commitment.