bluuebunny/crossref_metadata_2025_split huggingface dataset:
Large-scale citizen science programs can support ecological and climate change assessments
Authors: Crimmins Theresa M , Crimmins Michael A 
Published: May 2022

AbstractLarge-scale citizen science programs have the potential to support national climate and ecosystem assessments by providing data useful in estimating both status and trends in key phenomena. In this study, we demonstrate how opportunistic, unbalanced observations of biological phenomena contributed through a national-scale citizen science program can be used to (a) identify and evaluate candidate biotic climate change indicators and (b) generate yearly estimates of status of selected indicators. Using observations of plant phenology contributed toNature’s Notebook, the USA National Phenology Network’s citizen science program, we demonstrate a procedure for identifying biotic indicators as well as several approaches leveraging these opportunistically-sampled data points to generate yearly status measures. Because the period of record for this dataset is relatively short and inconsistently sampled (13 yr), we focus on estimates of status, though over time, these measurements could be leveraged to also estimate trends. We first applied various spatial, seasonal, and biological criteria to narrow down the list of candidate indicators. We then constructed latitude-elevation models for individual species-phenophase events using all observations. This allowed us to visualize differences between predicted and reported phenophase onset dates in a year as anomalies, with the expectation that these anomalies—representing earlier or later activity in the species of interest—reflect plant response to local springtime temperatures. Plotting yearly anomalies revealed regions with geographic coherence as well as outliers. We also show how yearly anomaly values can be reduced to a single measure to characterize the early or late nature of phenological activity in a particular year. Finally, we demonstrate how the latitude-elevation models can be leveraged to characterize the pace at which phenological transitions occur along latitude gradients on a year-by-year basis.
Decomposing the effect of anomalous diffusion enables direct calculation of the Hurst exponent and model classification for single random paths
Authors: Meyer Philipp G , Aghion Erez , Kantz Holger 
Published: May 2022

Abstract
Recently, a large number of research teams from around the world collaborated in the so-called ‘anomalous diffusion challenge’. Its aim: to develop and compare new techniques for inferring stochastic models from given unknown time series, and estimate the anomalous diffusion exponent in data. We use various numerical methods to directly obtain this exponent using the path increments, and develop a questionnaire for model selection based on feature analysis of a set of known stochastic processes given as candidates. Here, we present the theoretical background of the automated algorithm which we put for these tasks in the diffusion challenge, as a counter to other pure data-driven approaches.
Island and lake size distributions in gradient percolation
Authors: Manna S S 
Published: May 2022

Abstract
The well known problem of gradient percolation has been revisited to study the probability distribution of island sizes. It is observed that like the ordinary percolation, this distribution is also described by a power law decaying function but the associated critical exponents are found to be different. Because of the underlying gradient for the occupation probability, the average value of the island sizes also has a gradient. The variation of the average island size with the probability of occupation along the gradient has been studied together with its scaling analysis. Further, we have introduced and studied the gradient bond percolation and on studying the island size distribution statistics, we have obtained very similar results. We have also studied the characteristics of the diffusion profile of the particle system on a lattice which is initially half filled and half empty. Here also we observe the same value for the island size probability distribution exponent. Finally, the same study has been repeated for the nonlinear gradient percolation and the value of the island size distribution exponent is found to be a function of the strength of the nonlinear parameter.
Processing and use of waste from the mining industry
Authors: Golik V I , Polovneva S I , Turluyev R R 
Published: May 2022

AbstractAn increase in the extraction of resources is accompanied by their losses and dilution of ores due to the technogenic impact on ore-bearing massifs. The possibility of preserving the earth’s surface is provided by technologies with filling technological voids with hardening mixtures based on leach tailings, the insufficient activity of which is increased by processing in disintegrators under the influence of high energy. Experimental proof of the possibility of controlling the state of the hardening mixture was obtained in the course of many years of use of the disintegrator as part of the filling complex. The possibility of replacing cement with activated tailings has been proven not only as inert fillers but also as binders, which makes it possible to replace commercial cement with cheaper production of commercial products. Utilization of metals from enrichment tailings of various types of minerals allows the use of secondary tailings without restrictions on sanitary requirements. The combined effect of mechanical and chemical energies allows waste-free disposal of enrichment tailings and creates, in essence, a new base of metal raw materials to meet the needs of industry.
Evaluation of the variability of the oil viscosity of the Permian-Carboniferous reservoir Usinskoye field
Authors: Kultysheva S N , Raspopov A V , Khizhnyak G P 
Published: May 2022

Abstract
The article describes the results of assessing the variability of the viscosity of reservoir oil from the Permian-Carboniferous reservoir of the Usinsk field, obtained on the basis of sampling, research and analysis of downhole samples. Emphasis is placed on the study of oil properties (viscosity, gas content, molar mass, resin content, etc.) in the edge of the reservoir; a number of regularities in the change in viscosity over the area and section of the reservoir have been identified, which can later be used to optimize technologies for the development of super-viscous oil.
A study of the effect of the limiting shear gradient on the pressure recovery curve during hydraulic fracturing
Authors: Yusupova L F , Khusnutdinova R R , Gilyazetdinov R A , Almukhametova E M 
Published: May 2022

Abstract
The article analyzes the effect of the limiting shear gradient of viscoplastic oil on the results of interpretation of well testing by the pressure recovery curve (PRC) method following the methods of stimulation by hydraulic fracturing. The lack of mobile water in the collector was analyzed. An analysis of the effect of the limiting shear gradient on the pressure build-up curve and interpretation results was conducted. According to the results of interpretation by the pressure recovery curve method in the presence of a limiting shear gradient in oil, curves were constructed for various dependences and deviations were revealed.
Analysis of the state of exploitation of flooded Mesozoic reservoirs of the Grozny oil-bearing region exposed to anthropogenic impact
Authors: Khaladov A Sh , Bulchaev N D , Duskaev M Z , Bakaev M-A E , Taramov Yu Kh , Khasiev D Kh , Gazabieva Z Kh , Yamaletdinova A A 
Published: May 2022

Abstract
One of the main features of the exploitation of Mesozoic reservoirs in the Grozny oil-bearing region is an extremely short life of flooded production wells, which lasts not more than 10% of productive life from water appearance in the well production to its complete flooding.
Methods for forecast of oil-bearing capacity by the example of the JS2/1 layer within the Surgut arch
Authors: Turabaeva A V , Belkina V A 
Published: May 2022

Abstract
In order to increase the efficiency of geological exploration (GE), adequate geological models (AGM) must be created, enabling the identification of the most prospective oil-bearing areas. It should be pointed out that an extensive base of methods for building AGM exists nowadays. At the same time, there are practically no publications on substantiation of formalised criteria for ranking zones for GE with various geological risks. This paper proposes a model that provides ranking of the area according to the quality of reservoir rocks, based on the model’s strict decision rule. Based on the joint analysis of the quality maps of reservoir rocks and paleorelief, an oil potential map has been built. Efficiency of the method is shown by the example of the JS2/1 layer of continental genesis, characterised by the complex geological structure.
Karachay-Cherkessia – international landscape and geoecological landfill
Authors: Kipkeeva P A , Potapenko Ya Yu , Shubaeva N V. , Abaykhanova A A , Borlakova F M 
Published: May 2022

Abstract
Landscape and geoecological study served a response to global climate change and the threat of a global environmental crisis. The scientists of the Teberdinsky State Biosphere Reserve, Stavropol State University and the Department of Natural Geography of Karachay-Cherkess State University made the greatest contribution to the development of this sphere. Modern study on geology, geography, biology, toponymy, geomorphology, geoecology was conducted, an improved methodology for assessing the degree of anthropogenic impact on the natural environment was proposed, GIS technologies were mastered and introduced into the education and research. In 2019, the 1st International Conference was held in Karachaevsk, the main principle of which was the concept of balanced development of mountain territories.
The effect of polymer-cement mortars with additives of aluminosilicate microspheres on the reservoir properties of exploration and production wells
Authors: Kadyrov R R , Mukhametshin V V , Kuleshova L S , Kobishcha D I , Safiullina A R 
Published: May 2022

Abstract
The article shows that the use of lightweight grouting solution with hollow aluminosilicate microspheres can reduce the time and the cost of materials spent on securing exploration wells, ensure the rise of solution to the design height. Improved strength and fracturing of the stone ensures resistance to fracture during perforation, and a sufficiently strong bond can ensure tightness of the annulus in exploration and production wells.
Oil Potential Prospects of Domanik sediments in the North-East of the Volga-Urals
Authors: Krivoshchekov S N 
Published: May 2022

AbstractDue to the depletion of available mineral and raw material resources of conventional sediments there is a need to search for new promising areas of oil and gas exploration in Perm Krai. This article addresses Domanik sediments as a new source of hydrocarbons. Stratigraphically, these sediments belong to the Sargayev, Domanik and Mendym horizons and lithologically they are mainly represented by tight carbonate sediments and shales. These sediments are the main oil-source strata in the Volga-Ural province. The paper analyses the geological structure and distribution of these sediments in the study area. Thereupon, exploration recommendations have been formulated for the next few years. These mainly include subject-matter research, core sampling in the Domanik Formation sediments, special studies of reservoir properties, reactivation and study of discovered oil deposits in the Domanik strata. The main activities should be concentrated in the south and south-west of Perm Krai: in the area of the Bashkir Arch, in the south of the Upper-Kama Depression. The Solikamsk Depression is also of interest in this respect.
Technogenic impact on the environment during leaching
Authors: Razorenov Yu I , Klyuev R V , Guzueva E R 
Published: May 2022

AbstractThe results of the analysis of the theory and practice of leaching metals from substandard raw materials are presented. A brief historical reference is given on the leaching of metals from experimental leaching in the middle of the last century to industrial development in modern times. The direction of combining traditional and innovative technologies within a single technological process is formulated. The mechanism of underground block leaching of ores is described. A complex method of multi-factorial assessment of the existing natural and man-made factors of development is proposed. The parameters of the proposed technology and some aspects of its application are substantiated. Using the method of engineering forecasting, the prospects for leaching metals from substandard raw materials are assessed. The main results of the development of underground leaching of metals from sub-standard raw materials and the prospects for improving the method with the rational combination of underground leaching technologies with traditional mining technologies are formulated. It is concluded that the leaching of metals from substandard raw materials has prospects for development.
Use of acid fracturing to increase the production potential of subsoil users
Authors: Siraeva G M , Fattakhov I G , Kuleshova L S , Stepanova R R 
Published: May 2022

Abstract
The paper reflects the main problems of the search and development of Domanic deposits, including the following: complexity of the area search for promising sites; difficulty in extracting reservoir beds from well geophysical survey (GIS) data; low permeability of formations; low profitability of oil production; difficulty in reserve estimate and and registration. Oil and gas companies face problems such as the lack of reliable information on Domanic deposits from specific GIS studies, core samples, a significant risk of obtaining unprofitable flow rates, and a low degree of adaptation of existing oil production technologies to the products of Domanic deposits. The formation of reserves with mobile hydrocarbons is influenced by such parameters as: degree of maturity of source rocks; composition of substances; amount of minerals that determine the maturation of the organic substance and formation of the reservoir; presence of intervals with increased fragility, presence of impermeable layers that ensure the safety of deposits, etc. It was shown that the Domanic deposits should be developed using horizontal wells and multi-stage acid hydraulic fracturing treatment (HFT).
Forecasting the hydraulic fracturing efficiency when selecting wells for an event
Authors: Valeev A I , Mukhametshin V Sh , Anisimov V V 
Published: May 2022

Abstract
To this date, most of the oil and gas reserves are hard-to-recover, that is, they are located in deposits confined to low-permeability reservoirs. Hydraulic fracturing treatment (HFT) is one of the methods of production stimulation that allows making the oil recovery profitable from such reservoirs. The given article discusses regression analysis to predict HFT efficiency and select candidate wells.
Geological and statistical simulation for assessment of zonal oil and gas potential formation processes in the Visimskaya monocline
Authors: Galkin V I , Koshkin K A , Melkishev O A , Kozlova I A 
Published: May 2022

Abstract
The paper considers probabilistic approach application to assess zonal oil and gas potential of the Visimskaya monocline area. The earlier studies have shown that the processes of generation, migration and accumulation of hydrocarbons (HC) shall be most effectually assessed from a probabilistic standpoint. Generation processes are best described by a complex probabilistic criterion – PcompG
, migration and accumulation processes – by PcompMAC
[1]. These criteria were used to develop a multivariate statistical model – Pcompzon
, acting as an estimate of the system emergence regarding the zonal oil and gas potential. The values were ranked from maximum to minimum to assess the effect of PcompG
and PcompMAC
indicators on Pcompzon
at different ranges of its values. We successively built and analysed 379 models. The analysis of these models has shown that at Pcompzon>0.5 there is a congruent effect of PcompG
and PcompMAC
on this indicator, the effect being different at Pcompzon<0.5. A pattern of its variation over the area was built based on Pcompzon
values, which allowed differentiating the area of the Visimskaya monocline into a high-potential western part and a lower-potential eastern part.
Geological and Technological Parameters and Development of Deposits in Carbonate Reservoirs to Solve Exploration Tasks
Authors: Mukhametshin V Sh 
Published: May 2022

Abstract
More than 30 geological and technological parameters to affect the predicted production of reserves in carbonate reservoirs were studied to solve exploration tasks. A physical interpretation of the findings is given. The paper concludes that there is a need for complex geological and statistical modeling. The analysis does not give the parameters that most largely determine oil recovery due to their cross-correlation dependence. The final answer can be provided by a comprehensive oil recovery model involving all parameters and an analysis of cause-and-effect relationships.
Laboratory studies on the use of surfactant compositions to solve resource extraction problems
Authors: Ngia Ty Than , Veliev M M , Mukhametshin V Sh , Karimov S S , Veliev E M , Andreev A V 
Published: May 2022

Abstract
Based on studies on the interaction and heat resistance of some heat-resistant polymer additives at 128 °C, a sulfonated polyacrylamide polymer AN-125 is proposed as an additive for improving the viscosity of a surfactant composition. The results of experimental studies of a new surfactant composite prepared based on a mixture of ethoxylated and propoxylated sulfate, α-olefin sulfonate and alkylphenol ethoxylate with a concentration of 500 ppm and additives to improve the viscosity in the reservoir model from the deposit basement samples showed that the surface tension at the oil-solution boundary before the exposure to temperature is 0.19 mN/m, and after exposure to temperature 91 °C – 0.21 mN/m. The experimental studies of water and surfactant compositions injection on 5 prefabricated models composed of core samples of basement rocks covering a wide range of reservoir properties showed that the injection of the oil rim with compositions based on the mixture of ethoxylated and propoxylated sulfate, α-olefin sulfonate and alkylphenol ethoxylate with a concentration of 800 ppm and an additive of polymerasulfonated polyacylate increases the oil displacement ratio.
Possibilities of using fiber-optic sensors in the study of oil and gas wells
Authors: Shiryaev E O , Rybka V F , Kolychev I Yu 
Published: May 2022

Abstract
With an increase in the accuracy of fiber-optic sensors, the possibility of their use in various fields is being formed. In this article, the authors present their own experience in the implementation of fiber-optic technologies in geophysical surveys of wells, indicate current problems and prospects for the development of this direction in the region of activity. Since 2014, LLC “PITC Geofizika” has been actively developing the direction of fiber-optic temperature measurement systems. To date, these are measurements in more than 40 wells (15 wells are being measured at present time). As a result, we can say that today there is already a certain niche in the basket of the geophysical sector, confidently occupied with fiber-optic sensors technologies, but the prospects for the development of this technology are significant and are fully revealed only in the process of work. However, it is worth approaching the implementation of this method only with a complete understanding of the processes occurring in the well.
Assessment of applicability of preformed particle gels for Perm region oil fields
Authors: Rozhkova Yu A , Gurbanov V Sh , Efendiyev G M , Galkin S V 
Published: May 2022

Abstract
The application of preformed particle gels (PPG) in Russian oil fields is very limited. In this research the authors tried to find tools for primary screening of oil wells candidates for PPG application. For a fractured reservoir, the Warren-Rutt method was considered for estimating fracture sizes in injected oil wells. Taking into account the mechanical properties of the developed PPG, a powder fraction is recommended for starting treatment of oil wells. An express method for assessing the pressure index (PI) was considered for the primary selection of well candidates. PI provides information on reservoir heterogeneity. Using this method, the most promising candidates for the implementation of PPG technology were selected.
Diagnostics of traction motor of 1DT.003.11 type of electric train EP3D by modeling fuzzy linguistic parameters in matlab and fuzzy tech environment
Authors: Menshikov I A , Shorina A.V. , Kargin V A , Volgin A V , Moiseev A P , Volgina E V 
Published: May 2022

Abstract
The article presents the results of research in the field of diagnostics of a traction electric motor of the 1DT.003.11 type of the alternating current electric train of the EP3D series by simulating emergency modes of functioning of the fuzzy logic of a modular dynamical neural network. It is proposed to solve the problems of assessing the reliability of traction electric motors in railway transport with an increased service life using simulation modeling of the ANFIS modular neural network in the MATLAB package. The result of modeling the statistical diagnostic parameters of the traction motor is an assessment of the change in the linguistic coefficients of the residual life of the traction motor of the EP3D electric train and recommendations for the maintenance of traction electric motors, depending on their technical condition at the current time of operation.
ASHP National Survey of Pharmacy Practice in Hospital Settings: Clinical services and workforce—2021
Authors: Schneider Philip J , Pedersen Craig A , Ganio Michael C , Scheckelhoff Douglas J 
Published: May 2022

Abstract

Purpose
Results of the 2021 ASHP National Survey of Pharmacy Practice in Hospital Settings are presented.

Methods
Pharmacy directors at 1,498 general and children’s medical/surgical hospitals in the United States were surveyed using a mixed-mode method of contact by email and mail. Survey completion was online. IQVIA supplied data on hospital characteristics; the survey sample was drawn from IQVIA’s hospital database.

Results
The response rate was 21.9%. Pharmacists are routinely assigned to a majority of patients at least 8 hours per day, 5 days per week in 70.4% of hospitals. This is an increase from 60.8% in 2018 and has steadily increased over the past decade. Pharmacists independently prescribe medications pursuant to a diagnosis in 30.9% of hospitals, an increase from 21.1% in 2020. Pharmacists have prescribing authority in 67% of health-system ambulatory clinics and can recommend or schedule pharmacogenomics testing for drug and dosage selection in 11.4% of hospitals, an increase from 5.4% in 2019. Pharmacists are using electronic methods in 82.5% of hospitals to collect information for monitoring medication therapy. Shortages of entry-level pharmacy technicians are acute, with 73.4% of survey respondents reporting a shortage. Technician shortages have affected pharmacy operations and have prompted new recruitment and retention strategies.

Conclusion
Despite workforce challenges, clinical pharmacy services continue to expand to cover increasing numbers of patients with medication management services in both the inpatient and outpatient settings. The use of data analytics and pharmacy technicians has contributed to this evolution. Addressing the workforce challenges will be critical to sustain this progress.