bluuebunny/crossref_metadata_2025 huggingface dataset:
3D Simulation Workflow for Performance of Sharp and Worn PDC Drill Bits
Authors: Matthews Oliver , Huang Xu , Bomidi John Abhishek
Published: March 2021

This paper describes the development of an improved polycrystalline diamond cutter (PDC) drilling performance simulation in 3D which includes worn cutters. A polygonal mesh model is used to improve the geometric data needed for the drilling performance model calculations. Methods for active face identification have been developed to consistently identify a variety of polygonal face types. The simple wear flat definition used for data input is shown to adequately capture the geometry compared to field worn bit scans and provide valuable insights with active face identification. Drilling performance calculation and results from the calibration to laboratory drilling data and validation to both laboratory and field data are shown. Additionally, including a velocity parameter in the drilling performance model reduced model error.
A Medical-Inspired Framework to Classify Downhole Shocks Waveforms While Drilling
Authors: Matheus Justo , Ignova Maja , Amaya Darwin
Published: March 2021

This paper presents a medical approach to classify shock waveforms acquired at 31,250 hertz downhole. The shock signals are treated as drilling electrocardiogram (D-ECG). The D-ECGs are processed using clustering algorithms and merged with drilling incidents to identify an arrhythmic signature pattern that can lead to catastrophic failures.

In medicine, the analysis of heartbeat cycles in an electrocardiogram signal is very important for monitoring heart patients. In the drilling industry, downhole shocks are present most of the time. They are present so often that the authors introduce the concept of drilling electrocardiogram (D-ECG) based on shock waveforms acquired at high frequency. The shock module was implemented in hardware using a field programmable gate array (FPGA) and run inside the control unit of an RSS to complement the navigation systems composed. The shock acquisition and processing are performed at 31,250 Hz, providing enough bandwidth to fully reconstruct high-frequency events.

A novel methodology combining field incidents with machine learning clustering algorithms is proposed to identify arrhythmic shocks signatures and whirl and bit bounce in real time, preventing failures to the BHA.
Systematic Decisions Under Uncertainty: An Experiment Towards Better Geosteering Operations
Authors: Alyaev Sergey , Holsaeter Andrew , Bratvold Reidar Brumer , Ivanova Sofija , Bendiksen Morten
Published: March 2021

Geosteering workflows are increasingly based on updated quantifications of subsurface uncertainties during real-time operations. These workflows give tremendous amounts of information that a human brain cannot make sense of. To advance value creation from geosteering, the industry should develop and adopt decision support systems (DSSs). DSSs might provide either expert tools which inform decisions under uncertainty or optimization-based recommendations. In both cases the adoption of a DSS would require new skillsets to dynamically and systematically interpret uncertainties and parameters required for operational decision making. The aim of this work is to identify the relevant skills and ways to aid good geosteering decisions.

We present an experiment where 54 geosteering experts took part in performing steering decisions under uncertainty in a controlled environment using an online competition platform. In the experiment we compare the decisions of the experts with an AI bot that had the same information at its disposal.

Two of the participants beat the AI bot. A survey was conducted to reveal their winning strategies. The survey shows that both of the winners had extensive prior geosteering experience. That, together with luck, allowed them to beat the AI bot. At the same time neither of the winners utilized the full potential of uncertainty tools in the platform.

While geosteering experts possess insights due to prior experience, the information in the real-time data will still be overwhelming, sometimes resulting in inconsistent and unreliable geosteering choices. The AI bot guarantees reliable and consistent decisions by optimization based on systematic uncertainty analysis. Further development of DSSs, and their use as training-simulators for experts, should lead to improved well placements through adopting well-established principles for high-quality decision-making.
The Optimal Initiation Timing of Surfactant-Polymer Flooding in a Waterflooded Conglomerate Reservoir
Authors: Liu Zheyu , Li Yiqiang , Chen Xin , Chen Yukun , Lyu Jianrong , Sui Mingyue
Published: March 2021

Surfactant-polymer (SP) flooding has been regarded as an efficient technique for enhanced oil recovery in the development of mature oil fields, especially for those with heterogeneous conglomerate reservoirs. However, people are still unclear about the optimal SP flooding initiation timing (OSPT) that is expected to contribute to the maximum ultimate recovery factor in the case with a limited amount of SP solution injection. Accordingly, this study aims to investigate OSPT through conducting a series of experiments, including nuclear magnetic resonance (NMR) online monitoring, full-diameter coreflooding, and microfluidic study. The fractional-flow curve is used to identify OSPT, of which the effect on the oil recovery is analyzed. OSPT is demonstrated to be dependent on the amount of injected SP solution. An earlier-started SP flooding is favorable for achieving higher oil recovery factors under the premise of sufficiently high SP solution injection [more than 1.5 pore volume (PV)]. With the commonly used 0.65 PV of SP solution in the reservoir scale, OSPT is suggested to be at the moment when a water cut of 80 to 90% is reached. The formation of dense emulsions in the early-started SP flooding affects the performance of the post-waterflooding, which eventually decreases the ultimate oil recoveries because of inadequacy of SP solution. An earlier-started SP flooding contributes to a larger swept volume, but the initial efficiency of the SP flooding is lower than that of the waterflooding when the injection pressure is constant. OSPT is proposed through analyzing the fractional-flow curve in the case of 0.65 PV of SP injection, and the determined OSPT is validated by coreflooding experiments and field data. Moreover, OSPT for the conglomerate reservoir is suggested to be earlier than that for the relatively homogenous sandstone reservoir.
Assessing News Credibility: Misinformation Content Indicators
Authors: Carvalho Paula , Caled Danielle , Silva Mário J. , Martins Bruno , Carvalho João Paulo , Carreira Joaquim , Fonseca João Pedro , Gomes Teresa , Camacho Pedro
Published: March 2021

The development of explainable news credibility prediction models is critical both for fighting the viral propagation of misinformation and improving media literacy. This work investigates a variety of content indicators approaching different semantic and discourse dimensions, such as title representativeness, reasoning errors, and sentiment intensity. These indicators were inspired by a previous study conducted for English news, aimed at reaching a collective consensus on which indicators could be widely used for predicting news credibility. This new study, performed by a multi-disciplinary team, relies on a corpus of 80 news articles from Portuguese mainstream and alternative news media, which were annotated by junior and senior journalists. The assessment of the corpus annotations provides insight into the prevalence of different indicators in each type of news source. The results obtained for Portuguese correlate in most cases with the ones reported for English, which motivates the adoption of common standards for supporting the collaborative development of interoperable automatic misinformation detection approaches.
Developing The First Pan-Canadian Survey on Patient Engagement in Patient Safety
Authors: Aho-Glele Ursulla , Bouabida Khayreddine , Kooijman Allison , Popescu Ioana Cristina , Pomey Marie-Pascale , Hawthornthwaite Lisa , Ploquin Jodi , Dunn Susan , Trbovich Patricia , Tétrault Benoit , Sousa Maiana Regina Gomes de , Clément Louise , Lungu Nelea
Published: March 2021

Background: Patient safety is a worldwide problem, and the patient contribution to mitigate the risk of patient harm is now recognized as a cornerstone to its solution. In order to understand the nature of integrating patients into patient safety and healthcare organizations and to monitor their integration, a Canadian survey tool has been co-constructed by patients, researchers and the Canadian Patient Safety Institute (CPSI). This questionnaire has been adapted from the French version of the patient engagement (PE) in patient safety (PS) questionnaire created for the province of Quebec, Canada. Methodology: The pan-Canadian PE in PS survey tool was developed in a five-step process: (1) a literature review and revision of the initial tool developed in the province of Quebec; (2) translation of the French questionnaire into English; (3) creation of a Canadian expert advisory group; (4) adaptation of the tool based on feedback from the expert advisory group (assessment and development of the construct’s dimensions, wording assessment and adaptation for pan-Canadian use, technical testing of the online platform for the survey); and (5) pilot testing and pre-validation of the tool before pan-Canadian use. Results and Conclusion: The pan-Canadian PE in PS survey tool comprises 5 sections: (1) demographic identification of the participants (Q1 to Q5); (2) general questions (Q6 to Q17); (3) the patient engagement process (experience level of participants and organizational incentives for PE in general) (Q18 to Q33); (4) PE in PS processes, such as current activities, strategies, structures, resources and factors (Q34 to Q67); and (5) the context and impact of PE in PS initiatives in Canadian healthcare organizations (CHOs) (Q68 to Q75), including outcome identification, improvement mechanisms and strategies, evaluation mechanisms, and indicators.
Cultivation and population status of Ephedra (Ephedra gerardiana Wall. Ex Stapf) critically endangered medicinal plant for the conservation in cold desert of Ladakh, India
Authors: Rinchen Tsewang , Gurmet Padma , Dolker Punchok , Stobgais Tashi
Published: March 2021

Ephedra gerardiana is critically endangered and one of the most important medicinal plant of Trans-Himalaya of Ladakh. It is majorly used medicinal plant of Ayurveda, Sowa-Rigpa, Unani, Homeopathy, Siddha, Allopathy and other traditional medical systems, hence it is very important to understand its density, and cultivation technique for effective sustainable collection, conservation and utilization. The three valleys of Ladakh viz., Indus, Suru and Nubra valleys were analysed for the population census where the density of the species were ranges between 0.2-3.85 ind/m2 revealed the degree of threat of the species. Germplasm collected from different locations were studied for cultivation packages and practices in three conditions such as polycarbonate greenhouse, trench greenhouse and open field as controlled. We observed that the highest germination percentage (82.67±3.79) and survivability percentage (75.67±4.04) in polycarbonate greenhouse followed by trench greenhouse (58.00±2.00) (50.67±1.53) after 30 minutes of hot water treatment, sown in farm yard manure (FYM), clean sand, clay soil and sandy soil in the ration of 2:1:1:1. Morphological characters such as plant height (7.00±1.00), number of leaves (31.67±1.53) and root length (18.33±1.53) were also observed highest in polycarbonate greenhouse. Owing to its potential uses in the region and other part of the world make the species under threat. Results provide the comprehensive information about this valuable species for cultivation, ethnobotany, and population census for conservation of E. gerardiana critically endangered medicinal plant of Himalaya.
What Factors Hindered the Access to Essential Anti-Cancer Medicine in Public Hospitals amongst the Local Population in Hubei Province, China?
Authors: Chen Chaoyi , Feng Zhanchun , Yan Ziqi , Ding Yufeng , Wang Jia , Wang Ruoxi , Fu Qian , Feng Da
Published: March 2021

BackgroundCancer poses a serious threat to one’s health, which caused significant economic burden on the family and society. Poor availability and affordability resulted in some essential medicines failing to meet the basic health needs of this group of patients. The objective of this study was to evaluate the availability, prices and affordability of 32 anticancer essential medicines in Hubei Province, China.MethodsData on the availability and price related information of 32 essential anticancer medicines in the capital and five other cities of Hubei Province were collected. A total of 28 hospitals were sampled, which included 13 tertiary hospitals and 15 secondary hospitals. We used the standard methods developed by the World Health Organization (WHO) and Health Action International (HAI) to compare the differences in drug price, availability and affordability between secondary hospitals and tertiary hospitals. ResultsOverall, the availability of medicine was higher in tertiary hospitals. The average availability of originator brand (OBs) was 13.70% (tertiary hospitals) VS 6.67% (secondary hospitals), and lowest-priced generic (LPGs) was 62.83% (tertiary hospitals) VS 42.92% (secondary hospitals). The MPR value of most sampled medicines in secondary hospitals were less than 1. In contrast, the MPR of Cytarabine (17.15), Oxaliplatin (12.73) were significantly higher than the international reference price. The top three OBs’ total expenses for 30-day treatment were Irinotecan, Oxaliplatin, Bicalutamide. Further, their affordability was relative low, as the costs for one course using these medicines were much higher than 20% of the minimum family monthly income.ConclusionThough the “Zero Mark-Up” and “Two Vote” Policies have been implemented in China, the availability issue yet to be addressed. High price and low affordability were the major barriers to the access of essential anticancer medicines. Measures should be taken to provide sufficient, available and affordable medicines to patients in need.
Electronic and vibrational decoupling in chemically exfoliated bilayer 2D-V2O5
Authors: R Reshma P , Pazhedath Anees , Karuppiah Ganesan , Prasad Arun , Dhara Sandip
Published: March 2021

Recently emerged transition metal oxide (TMO) based 2D nanostructures are gaining a foothold in advanced applications. Unlike, 2D transition metal dichalchogenides, it is strenuous to obtain high quality thin TMOs due to exotic surface reconstruction during synthesis. Herein, we report the synthesis of bilayer thin 2D-V2O5 nanosheets using chemical exfoliation. Synchrotron X-ray diffraction, X-ray photoelectron spectroscopy and atomic force microscopy substantiate the successful formation of bilayer thin 2D-V2O5. Ultraviolet-visible absorption spectra exhibit a thickness dependent blue shift in the optical band gap, signifying the emergence of electronic decoupling. Raman spectroscopy fingerprinting shows a thickness dependent vibrational decoupling of phonon modes. Further, it has been verified by computing the lattice vibrational modes using density functional perturbation theory. In this study, the manifestation of the electronic and vibrational decoupling is used as a novel probe to confirm the successful exfoliation of bilayer 2D-V2O5 from its bulk counterpart.
Afterload-related reference values for myocardial work indices
Authors: Li Qiancheng , Wang Hui , Feng Haiyan , Wu Tingfan , Yang Ying , Gao Dongmei , SUN Lina
Published: March 2021

Background

The novel noninvasive pressure-strain loop (PSL) is a reliable tool that reflects myocardial work (MW). Systolic blood pressure (SBP) is the only independent factor for MW indices. However, afterload-related reference values have not been previously reported. The aim of the present study was to establish reference values for MW parameters by SBP grading over a wide range.
Methods

We prospectively selected healthy individuals and subjects with SBP ≥ 140mmHg at the time of study without myocardial remodeling. MW parameters were collected and the reference values achieved were grouped by SBP in 10-mmHg.
Results

Significant differences were noted among the SBP-groups for global work index (GWI) and global constructive work (GCW). The majority of statistical comparisons of the differences in GWI and GCW were significant at each SBP-group. With SBP ranging from 90 to 189mmHg, the parameters GWI and GCW tended to increase linearly with afterload. Overall, the global wasted work (GWW) tended to rise as SBP was increased, but not all of the differences noted in GWW were significant for each SBP-group. Global work efficiency (GWE) remained stable across all SBP-groups, with the exception of a slight drop noted when it exceeded 160 mmHg.
Conclusions

The amount of MW but not the work
efficiency varied greatly according to the different
afterload.

This finding cannot be ignored during clinical research or diagnosis and afterload-related reference values are required to make a reasonable judgment on the myocardial function.
Rv0494 Mediates Tolerance to Antibiotics in Mycobacterium Tuberculosis
Authors: Ji Lei , Cai Damin , Hua Kouzhen , Du Peng , Chen Yuanyuan , Zhao Xin , Xie Jianping
Published: March 2021

Background: Fatty acid metabolism plays an important role in the survival and pathogenesis of Mycobacterium tuberculosis. During dormancy, lipids are considered to be the main source of energy. The previous studies find that Rv0494 is a starvation-inducible, lipid-responsive transcriptional regulator. However, the role of Rv0494 in bacterial persister survival has not been studied.Methods: We constructed Rv0494 deletion mutant and assessed the susceptibility of the mutant to various antibiotics conditions in persister assays.Results: We found that mutations in Rv0494 caused a defect in persister survival as shown by their increased susceptibility to Isoniazid.Conclusions: We conclude that Rv0494 is important for persister survival and may serve as a good target for developing new antibiotics that kill persister bacteria for improved treatment of persistent bacterial infections.
Moving ahead from Hydrogen to Methanol Economy: Scope and challenges
Authors: Sonthalia Ankit , Kumar Naveen , Tomar Mukul , V Edwin Geo , S Thiyagarajan , Pugazhendhi Arivalagan
Published: March 2021

Energy is the driver in the economic development of any country. It is expected that the developing countries like India will account for 25% hike in world-wide energy demand by 2040 due to the increase in the per capita income and rapid industrialization. Most of the developing countries do not have sufficient oil reserves and imports nearly all of their crude oil requirement. The perturbations in the crude oil price, sanctions on Iran and adverse environmental impacts from fossil fuel usage are some of the concern. Therefore, developing countries have started investing heavily in solar and wind power and are considering hydrogen as a future energy resource. Hydrogen is possibly the cleanest fuel and produces only water vapour upon combustion. However, to tap the potential of hydrogen as a fuel, an entirely new infrastructure will be needed for transporting, storing and dispensing it safely, which would be expensive. In the transportation sector, a liquid alternate to fossil fuels will be highly desirable as the existing infrastructure can be used with minor modifications. Amongst the possible liquid fuels, methanol is very promising. Methanol is a single carbon atom compound and can be produced from wide variety of sources such as natural gas, coal, and biomass. The properties of methanol are conducive for use in gasoline engines since it has high octane number and flame speed. Other possible uses of methanol are: as a cooking fuel in rural areas, and as a fuel for running the fuel cells. The present study reviews the limitations in the hydrogen economy and why moving towards methanol economy is more beneficial.
An application of a complex measure to model–based imputation in business statistics1
Authors: Młodak Andrzej
Published: March 2021

When faced with missing data in a statistical survey or administrative sources, imputation is frequently used in order to fill the gaps and reduce the major part of bias that can affect aggregated estimates as a consequence of these gaps. This paper presents research on the efficiency of model–based imputation in business statistics, where the explanatory variable is a complex measure constructed by taxonomic methods. The proposed approach involves selecting explanatory variables that fit best in terms of variation and correlation from a set of possible explanatory variables for imputed information, and then replacing them with a single complex measure (meta–feature) exploiting their whole informational potential. This meta–feature is constructed as a function of a median distance of given objects from the benchmark of development. A simulation study and empirical study were used to verify the efficiency of the proposed approach. The paper also presents five types of similar techniques: ratio imputation, regression imputation, regression imputation with iteration, predictive mean matching and the propensity score method. The second study presented in the paper involved a simulation of missing data using IT business data from the California State University in Los Angeles, USA. The results show that models with a strong dependence on functional form assumptions can be improved by using a complex measure to summarize the predictor variables rather than the variables themselves (raw or normalized).
Analysis of Polish mutual funds performance: a Markovian approach
Authors: Filip Dariusz , Rogala Tomasz
Published: March 2021

The aim of this study is to determine whether mutual funds provide benefits for their clients. The performance of Polish mutual funds has been evaluated in terms of their efficiency, including their potential inertia over time. Moreover, the use of the phenomenon of economies of scale resulting from assets inflow to the fund by means of the Markovian framework has been examined. The results are consistent with the efficient market hypothesis. When assessing the market-adjusted returns, underperformance was noticed in both small and large funds. The smart money effect, recognised in the literature, is not confirmed here; however, there are some noticeable investor reactions, such as the phenomenon of chasing performance.
Characteristic determinant and Manakov triple for the double elliptic integrable system
Authors: Grekov A. , Zotov Andrei
Published: March 2021

Using the intertwining matrix of the IRF-Vertex correspondence we propose a determinant representation for the generating function of the
commuting Hamiltonians of the double elliptic integrable system. More precisely, it is a ratio of the normally ordered determinants, which turns into a single determinant in the classical case. With its help we reproduce the recently suggested expression for the eigenvalues of the Hamiltonians for the dual to elliptic Ruijsenaars model.
Next, we study the classical counterpart of our construction,
which gives expression for the spectral curve and the corresponding L-matrix. This matrix is obtained explicitly as a weighted average of the Ruijsenaars and/or Sklyanin type Lax matrices
with the weights as in the theta function series definition.
By construction the L-matrix satisfies the Manakov triple representation instead of the Lax equation.
Finally, we discuss the factorized structure of the L-matrix.
PENGARUH PENGGUNAAN KOLOM PASIR, LAYER PASIR, DAN TERUCUK BAMBU PADA TANAH LEMPUNG JENUH AIR TERHADAP PENURUNAN TANAH LEMPUNG MENGGUNAKAN UJI LABORATORIUM
Authors: Wibowo Dian Eksana , S. Satriarda Dirgantara , Kurniawan Ridwan
Published: March 2021

ABSTRAKPenelitian ini bertujuan untuk mengetahui klasifikasi jenis tanah, properti tanah pengujian dan pengaruh penggunaan metode penambahan variasi tanah lempung jenuh air dengan menggunakan pasir dan cerucuk bambu, terhadap penurunan tanah lempung, kadar air, dan analisis T90. Penelitian eksperimen dengan menggunakan model boks baja, berukuran 100 cm x 100 cm x 40 cm sebagai media penempatan tanah lempung. Hasil penelitian ini yaitu: (1) Jenis tanah termasuk CH (Clay High Plasticity) menurut klasifikasi USCS dan kelompok 4-7-6(40) menurut klasifikasi AASTHO. (2) Properti tanah adalah G=2,63, LL=74,71%, PL=29,76%, IP=44,95%, SL=19,06%, C=0,75 kg/cm2, OMC=39,2%. (3)  Penambahan TPV sangat efektif memperkecil penurunan. Pada pemberian tekanan 0,0125 kg/cm2, 0,025 kg/cm2, 0,05 kg/cm2, dan 0,01 kg/cm2 memperkecil penurunan, berturut-turut: 75,93%; 56,32%; 59,44% dan 42,32%. Pada kedalaman -10 cm penggunaan TPH paling efektif mengurangi kadar air tanah lempung  yaitu sebesar 53,30%, berarti mengurangi kadar air sebesar 3,62% dari kondisi tanah asli (TTD). Pada kedalaman 20 cm, penggunaan TCB paling efektif mengurangi kadar air sebesar 3,55% dari kadar air tanah lempung asli (TTD). Penggunaan CTPVH pada beban 0,1 kg/cm2 paling efektif dalam proses konsolidasi yaitu sebesar 94,10% dari tanah asli (TTD) dimana mempunyai nilai sebesar nilai t90 untuk CTPVH yaitu sebesar 15,21 menit. Kata Kunci: air, perkuatan, tanah lempung, T90  ABSTRACT This study aims to determine the classification of soil types, soil properties tested and the effect of using the method of adding variations in the water-saturated clay, using sand and bamboo piles, to clay settlement, moisture content, and T90 analysis. The experimental study used a steel box model, measuring 100 cm x 100 cm x 40 cm as a medium for clay placement. The results of this study are: (1) Soil types including CH (Clay High Plasticity) according to USCS classification and groups 4-7-6 (40) according to AASTHO classification. (2) Soil properties is G=2,63, LL=74,71%, PL=29,76%, IP=44,95%, SL=19,06%, C=0,75 kg/cm2, OMC=39,2%. (3) Addition of TPV is very effective in reducing the settlement. At a pressure of 0,0125 kg/cm2, 0,025 kg/cm2, 0,05 kg/cm2, and 0.01 kg/cm2 minimizing the settlement,  respectively: 75,93%; 56,32%; 59,44% and 42,32%. At depths of -10 cm the most effective use of TPH reduces clay soil moisture content by 53,30%, which means reducing water content by 3,62% from the original soil conditions (TTD). At a depth of 20 cm, using TCB is most effective at reducing water content by 3,55% from the original clay soil content (TTD). The use of CTPVH at a load of 0,1 kg/cm2 is most effective in the consolidation process which is 94.10% of the original soil (TTD) which has a value of T90 for CTPVH which is 15,21 minutes. Keywors: water, strainthening, clay, T90
ANALISIS PENURUNAN KUALITAS MUTU KAYU PADA BANGUNAN CAGAR BUDAYA DENGAN METODE NON DESTRUCTIVE TEST (Studi Kasus Bangunan Cagar Budaya Masjid Gedhe Mataram Daerah Istimewa Yogyakarta)
Authors: Darmono Darmono , Nugroho Maris Setyo , Widodo Slamet , Ma’arif Faqih
Published: March 2021

ABSTRAKPenelitian bertujuan untuk mengetahui mechanical properties material kayu Bangunan Cagar Budaya dengan non-destructive test. Penelitian ini menggunakan metode pengujian lansung dilapang menggunakan Ultrasonic Pulse Velocity (UPV). Terdapat dua variable yang digunakan yaitu kolom cacat dan kolom utuh untuk mengetahui perbedaan nilai cepat rambat gelombang. Jumlah sampel yang digunakan sebanyak enam buah dengan pengambilan data masing-masing sampel sebanyak lima kali. Hasil pengujian menunjukkan bahwa nilai kadar air dan berat jenis kayu sebesar 15,03% dan 0,62. Sedangkan hasil pengujian UPV pada kolom cacat dan utuh diperoleh cepat rambat gelombang sebesar 0,71 km/s dan 1,21 km/s. Berdasarkan hasil analisis menunjukkan bahwa nilai MOEd pada kolom utuh sebesar 9.374,37 MPa, sedangkan MOEd pada kolom cacat sebesar 3.240,62 MPa. Kata kunci: mechanical properties kayu, bangunan cagar budaya, ultrasonic pulse velocity ABSTRACTThis study aims to determine the mechanical properties of the wood material for the Cultural Heritage Building with a non-destructive test. This study used a direct field testing method using Ultrasonic Pulse Velocity (UPV). There are two variables used, namely the defective column and the solid column to determine the difference in the value of the fast propagation of the waves. The number of samples used was six with data collection for each sample five times. The test results showed that the moisture content and density of wood were 15.03% and 0.62. While the UPV test results on defective and solid columns obtained wave propagation velocity of 0.71 km / s and 1.21 km / s. Based on the analysis result, it shows that the MOEd value in the whole column is 9,374.37 MPa, while the MOEd in the defective column is 3,240.62 MPa. Keywords: mechanical properties of wood, cultural heritage buildings, ultrasonic pulse velocity
Contribution of Free-Text Comments to the Burden of Documentation: Assessment and Analysis of Vital Sign Comments in Flowsheets
Authors: Yin Zhijun , Liu Yongtai , McCoy Allison B , Malin Bradley A , Sengstack Patricia R
Published: March 2021

Background

Documentation burden is a common problem with modern electronic health record (EHR) systems. To reduce this burden, various recording methods (eg, voice recorders or motion sensors) have been proposed. However, these solutions are in an early prototype phase and are unlikely to transition into practice in the near future. A more pragmatic alternative is to directly modify the implementation of the existing functionalities of an EHR system.

Objective

This study aims to assess the nature of free-text comments entered into EHR flowsheets that supplement quantitative vital sign values and examine opportunities to simplify functionality and reduce documentation burden.

Methods

We evaluated 209,055 vital sign comments in flowsheets that were generated in the Epic EHR system at the Vanderbilt University Medical Center in 2018. We applied topic modeling, as well as the natural language processing Clinical Language Annotation, Modeling, and Processing software system, to extract generally discussed topics and detailed medical terms (expressed as probability distribution) to investigate the stories communicated in these comments.

Results

Our analysis showed that 63.33% (6053/9557) of the users who entered vital signs made at least one free-text comment in vital sign flowsheet entries. The user roles that were most likely to compose comments were registered nurse, technician, and licensed nurse. The most frequently identified topics were the notification of a result to health care providers (0.347), the context of a measurement (0.307), and an inability to obtain a vital sign (0.224). There were 4187 unique medical terms that were extracted from 46,029 (0.220) comments, including many symptom-related terms such as “pain,” “upset,” “dizziness,” “coughing,” “anxiety,” “distress,” and “fever” and drug-related terms such as “tylenol,” “anesthesia,” “cannula,” “oxygen,” “motrin,” “rituxan,” and “labetalol.”

Conclusions

Considering that flowsheet comments are generally not displayed or automatically pulled into any clinical notes, our findings suggest that the flowsheet comment functionality can be simplified (eg, via structured response fields instead of a text input dialog) to reduce health care provider effort. Moreover, rich and clinically important medical terms such as medications and symptoms should be explicitly recorded in clinical notes for better visibility.
Diversity of Arthropods in Different Rice Varieties in Bantul Regency
Authors: Lestari Indah Sri , Martono Edhi , Wijonarko Arman
Published: March 2021

High-yielding varieties are used as one of the technologies to increase rice productivity in Indonesia. Varieties, however, invite the arrival of arthropod during their growing phase. One of the method to manage arthropods during the growing stage is the use of high-yielding varieties. In this trial, IR-64, Ciherang, Situ Bagendit, Mekongga and Mixed Varieties were used. The mixed variety is a combination of IR-64, Ciherang, Situ Bagendit and Mekongga. These rice varieties are the most common varieties used by farmers in Bantul Regency. To collect arthropods, the traps used were sweep net, yellow sticky and pitfall traps. The purpose of this study was to determine arthropod’s diversity, evenness and dominance in different rice plant varieties in one planting season. The study was conducted in the village of Wijirejo, Pandak, Bantul, Yogyakarta. The observations were conducted in the evening between 16.00–18.00 p.m., with the interval of twice a week for 5 observations. Arthropods were identified up to the family level. This research resulted in the diversity index (Shannon-Winner) of 1.97–2.82 which is categorized as medium, the evenness index of 0.61–0.71, categorized as medium and the dominance index of 0.10–0.22, categorized as lower level. The ecosystemof the research area was unstable in diversity, evenness, and dominance due to the transition process, and it took quite some times to stabilize the rice fields. Therefore, a more thorough research is still necessary, especially for the ricegrowing season to follow.
Microbial Profile Evaluation of Beef Steaks From Different Packaging and Retail Lighting Display Conditions
Authors: Hanlon Keelyn E. , McCann Joshua C. , Miller Mark F. , Brashears Mindy M. , Smith Colton L. , Brooks J. Chance , Legako Jerrad F.
Published: March 2021

To date, meat microbiology research has relied on culture-dependent methods. Amplicon sequencing technology provides a deeper look into the microbial community. This study set out to evaluate the bacterial community of fresh beef longissimus lumborum steaks exposed to retail packaging and display conditions. Four packaging treatments were assigned after fabrication 7 d postmortem: high-oxygen modified atmosphere packaging, overwrapped packages within a carbon monoxide tri-gas flushed motherbag, vacuum rollstock pouches, and traditional overwrap. After a 14-d dark storage, carbon monoxide motherbag overwrapped packages were removed from the motherbag, and packages were distributed to a retail lighting condition for 72 h of retail display: fluorescent, light emitting diode, or darkness. Aerobic plate count and psychrotrophic bacteria were enumerated, in addition to 16S ribosomal RNA sequencing of DNA for microbial profile investigation. Sampling occurred at fabrication (7 d), end of dark storage (20 d), and end of retail display (23 d). The V3–V4 regions of the 16S bacterial ribosomal RNA gene were sequenced using the Illumina MiSeq platform (Illumina, San Diego, CA). Counts for aerobic plate count bacteria differed by packaging (P = 0.039) but not lighting (P > 0.05). Firmicutes and Proteobacteria were the dominate phyla identified but were not affected by packaging or lighting (P > 0.05). Traditional overwrapped packages displayed in darkness and fluorescence had a higher abundance of Carnobacterium compared with those displayed under light emitting diode (P = 0.05). Dark-stored samples had more Pseudomonas compared with fluorescent display, regardless of packaging type (P = 0.03). While packaging and lighting conditions had a minimal impact on the community composition, these data positively contribute to a baseline establishing bacterial community profiles of fresh beef steaks subjected to retail display. This foundation suggests that further work is needed to understand whether shifts are more likely to occur during extended shelf life or in other retail beef display conditions.
APLIKASI ANALISIS KIMIA KUANTITATIF UNTUK PEMANTAUAN KADAR OBAT (THEURAPETIC DRUGS MONITORING)
Authors: Dewi Ni Made Amelia Ratnata
Published: March 2021

Theurapetic drugs monitoring (TDM) is used to adjust individual drug therapy. TDM purpose is to maximize the therapeutic effect and reduce the side or toxic effects of the drug. In general, TDM includes sample preparation, conducting drug analysis and interpreting the concentration of the drug. The development of analytical techniques resulted in the determination of pharmacokinetic characters by measuring drug concentrations in the blood more easily. Drug analysis can be done by spectrophotometric, chromatographic or immunoassay methods. Immunoassay could provide fast results and easy to use, but this method cannot distinguish between drugs that have similar structures. In addition, immunoassays are not available for all drugs monitored in clinical laboratories, so chromatographic methods such as GC, HPLC, GC/MS, and HPLC / MS can still be applied to TDM.
PENERAPAN MULTIMEDIA INTERAKTIF POWER POINT PADA MATA DIKLAT DASAR DAN PENGUKURAN LISTRIK
Authors: Candra Oriza , Elfizon Elfizon , Islami Syaiful , Yanto Doni Tri Putra
Published: March 2021

The purpose of this study is to seek to improve the learning outcomes of students using interactive multimedia Power Point work on the subjects of Basic learning and Electrical Measurements Work in class X TIPTL 2 SMKN 1 Padang. This type of study is a quasi-experiment. Students of class X TITL 2 Padang 1 SMKN were collected in the 2016/2017 school year consisting of 30 students as research subjects. Collecting data in this study using the test results to learn pre and post objective be about 30 items to 30 items for pre- and post. The test questions that will be used first on the tests to determine the validity, reliability, difficulty index, and different power test questions. Data were analyzed using Gain Score. The average value of the pre-test before deploying interactive multimedia Power Point is 58.5 and average values applied after the interactive Power Point post-test media is 79. Hence Gain score calculation means of learning results of students increase 0478 in the average category. It can be concluded that the interactive multimedia Power Point application can improve the results student of class X TITL 2 SMK 1 Padang on topics Basic learning and Electrical Measurements.
Bioleaching of copper, zinc and gold from a polymetallic ore flotation concentrate from the Coka Marin deposit (Serbia)
Authors: Avdalovic Jelena , Solevic-Knudsen Tatjana , Dojcinovic Biljana , Conic Vesna , Yao Jun , Lu Chao , Vrvic Miroslav
Published: March 2021

The aim of this study was to investigate the possibility of applying
Acidithiobacillus sp. B2 to copper, zinc and gold recovery from a
polymetallic ore flotation concentrate. The study was designed in two
phases. The first phase was a classic biooxidation process in which the
microorganisms oxidize sulfides, leaching copper and zinc while
simultaneously concentrating gold in the ore. In the second phase, after
elimination of the sulfide substrate, the rate of gold leaching by potassium
cyanide was analyzed. The leaching was conducted using the shake flask
testing technique during a period of 28 days at a temperature of 28 ?C. The
percentage of copper and zinc leached at the end of this study was 37.63 %
and 47.95 % respectively. The results obtained indicated 6- and 13-fold
(for copper and zinc, respectively) higher metal leaching efficiency in the
suspension with iron-oxidizing Acidithiobacillussp. B2 than in the control
suspension. In the next phase of the study, after elimination of the sulfide
substrate, gold was extracted with potassium cyanide from the remaining
polymetallic ore concentrate. The results obtained showed that the
efficiency of the gold extraction process was 80 %. According to the
available data, this is the first study of the microbiological leaching of
copper, zinc and gold from a polymetallic ore flotation concentrate from the
Coka Marin deposit (Serbia).
Nothing is Standard: The Transformation of Standard Costing Under State Policy in the USSR (1929–1934)
Authors: Sidorova Marina , McBride Karen , Nazarov Dmitry
Published: March 2021

In the 1930s, active industrialization of the economy in the USSR was impossible without using modern management techniques and accounting methods. To increase the manageability of industrial enterprises, attempts to introduce standard costing, imported from the United States, were undertaken. Previously called progressive and useful, after the policy of the Communist Party changed, standard costing was identified as a calculative technique that did not correspond to the goals of the socialist state. Soviet researchers formulated the principles of normative cost accounting, based on standard costing. This new version was greatly simplified and lost its analytical focus. The paper investigates the influence of state policy on the transformation of standard costing methodology during the construction of the Socialist economy. The authors contribute to previous literature by focusing on the periodic press, professional societies, and educational institutions being used as tools of political power to put pressure on accounting theory and practice.
Effects of Gastric Bypass Surgery on the Brain; Simultaneous Assessment of Glucose Uptake, Blood Flow, Neural Activity and Cognitive Function during Normo- and Hypoglycemia
Authors: Almby Kristina E. , Lundqvist Martin H. , Abrahamsson Niclas , Kvernby Sofia , Fahlström Markus , Pereira Maria J. , Gingnell Malin , Karlsson F. Anders , Fanni Giovanni , Sundbom Magnus , Wiklund Urban , Haller Sven , Lubberink Mark , Wikström Johan , Eriksson Jan W.
Published: March 2021

While Roux-en-Y Gastric Bypass (RYGB)
surgery in obese individuals typically improves glycemic control and prevents
diabetes, it also frequently causes hypoglycemia. Previous work showed attenuated
counter-regulatory responses following RYGB. The underlying mechanisms as well
as the clinical consequences are unclear.

In this study, 11 non-diabetic
subjects with severe obesity were investigated pre- and post-RYGB during
hyperinsulinemic hypoglycemic clamps. Assessments were made of hormones,
cognitive function, cerebral blood flow by arterial spin labeling, brain glucose
metabolism by FDG PET and activation of brain networks by functional MRI. Post-
vs pre-surgery, we found a general increase of cerebral blood flow but a
decrease of total brain FDG uptake during normoglycemia. During hypoglycemia, there
was a marked increase in total brain FDG uptake and this was similar for post-
and pre-surgery, whereas hypothalamic FDG uptake was reduced. During
hypoglycemia, attenuated responses of counterregulatory hormones and
improvements in cognitive function were seen post-surgery. In early
hypoglycemia, there was increased activation post- vs pre-surgery of neural networks
in CNS regions implicated in glucose regulation such as the thalamus and hypothalamus.
The results suggest adaptive
responses of the brain that contribute to lowering of glycemia following RYGB, and
the underlying mechanisms should be further elucidated.
The treasury system of Russia–2021: New development trends amid increasing budgetary constraints
Authors: GLUSHAKOVA Ol'ga V.
Published: March 2021

Subject. The article focuses on institutional transformations in bodies of the Federal Treasury in adopting the treasury payment mechanism and treasury service. Objectives. I analyze the performance of the public finance system in Russia during the COVID-19 crisis, and identify steps of the institutional environment emergence so as to adopt the treasury payment system and treasury service. I also evaluate whether it is possible to ensure the balance of the federal budget and regional budgets in Russia by placing temporarily available funds when introducing the treasury payment mechanism and implementing the technology of the single treasury account. Methods. The study is based on the systems and institutional approaches. I also resorted to general methods, such as the analysis, synthesis, comparison. Results. The revenue of the federal budget was found to drop considerably due to the lower business activity in Russia and worldwide and a decrease in the demand and prices for strategic power resources. The article outlines steps of the institutional environment emergence to adopt the treasury payment system and treasury service. Additional income from the placement of temporarily available federal and regional funds was found to be insufficient to ensure the balance of the above budgets. Conclusions and Relevance. Going beyond the structural conservatism of the national economy will lower the public finance sustainability risks amid rapidly changing development challenges, including the COVID-19 that outbroke worldwide in 2020. The findings can be used for practical purposes by the Federal Treasury and other parties to the treasury payment systems so as to improve its performance.
PROFIL KOMPETENSI LULUSAN SMK NEGERI 1 KALIANGET PROGRAM STUDI MEKANIK OTOMOTIF YANG DIHARAPKAN STAKEHOLDER
Authors: Ngadi Ngadi
Published: March 2021

Arah penyelenggaraan pendidikan dan pelatihan di SMK harus mengedepankan aspek efektif, efisien, dan bermutu, yang mengintegrasikan antara kompetensi profesional, kompetensi kepribadian, dan kompetensi kewirausahaan. Keterjalinan dan keterpautan antara penyelenggaraan pendidikan dan pelatihan di SMK dengan kepentingan dan harapan stakeholder, terutama tentang profil kompetensi lulusan yang akan mereka pakai, adalah suatu keniscayaan. Perlu studi yang akurat dan dapat dipertanggungjawabkan tentang preferensi stake holder terhadapkompetensi lulusan SMK, sebagai tenaga kerja tingkat madya yang mereka pakai.Analisis konjoin adalah salah satu metode statistik multivariate, yang biasa digunakan untuk riset pasar, digunakan untuk menentukan preferensi konsumen terhadap suatu produk atau jasa.Hasil studi preferensi diharapkan dapat dijadikan pertimbangan yang masuk akal oleh sekolah (SMK) atau guru pengajar SMK dalam membuat kebijaksanaan manajemen atau pendekatan pembelajarannya, terutama aspek konsentrasi materi serta model pembelajarannya sehingga relevan dengan kebutuhan stake holder
Vendian-Cambrian granites of the Salatim suture zone (the Northern Urals): Geochemistry of zircons, source composition, geochronological and geodynamical consequences
Authors: Shardakova G. Yu. , Korovko A. V.
Published: March 2021

Research subject. The composition and isotope systems of zircons and their host granites from the Krutorechensky complex (western part of the Main Uralian fault zone, Northern Urals) were investigated. Methods. The U-Pb age, trace element contents and Lu-Hf isotopes in the zircons under study were determined by LA-ICP-MS (Ulan-Ude, Ekaterinburg). TIMS was used to determine Sm-Nd isotopes in the rocks. Results and Discussion. It was shown that the morphology and composition of the main zircon group from granites confirm their magmatic origin and the absence of alteration. It means that the previously defined Vendian-Cambrian (542 Ma) age of the granites remains valid. The relics ancient (1043–122 Ma) cores were probably inherited from Isherim suite rocks. The source of such detrital grains could have been the rocks from the East-European platform basement. Young zircons (400 Ma) differing strongly from others in composition could have been formed around the already existing grains produced by a fluid generated under the action of plume activity. The source for granite melting was mainly of a crust nature: εNd(t) = –6, εHf(t) = –6…–9, initial ratio (87Sr/86Sr)i = 0.796943. In terms of lithology, the source rocks correspond to sandstones with a small admixture of clay components. The obtained information confirms the necessity to further investigate questions concerning the area of distribution and the age of the Sarankhapnorsk suite within the Krutorechensky complex, as well as the position of the eastern boundary of the Isherim block. Conclusion. The obtained results can be used in geological mapping.