bluuebunny/crossref_metadata_2025_split huggingface dataset:
What do We Know so Far about Ges Carbapenemases, and What Threat do They Pose?
Authors: Rutkowski Kamil , Osnytskyy Anton , Ślifierska Magdalena , Jarząbek Paulina , Bielec Filip , Pastuszak-Lewandoska Dorota , Brauncajs Małgorzata 
Published: October 2024

Abstract
Carbapenemases, classified as bacterial enzymes, have the ability to hydrolyze carbapenems – important broad-spectrum antibiotics. This work attempts to summarize the information on the diversity of Guiana Extended-Spectrum (GES) subgroup of carbapenemases, and highlights the serious threat posed by infections caused by bacteria capable of producing these enzymes. The structure, functional characteristics, classification of different types of GES carbapenemases and diagnostic methods are discussed in detail. There are 59 GES-type carbapenemases, which have different amino acid sequences of the protein chains as well as activity against various antibiotics. Currently, bacterial strains with antibiotic resistance of the GES type are treated with: cefiderocil belonging to the cephalosporins, eravacycline belonging to the tetracyclines, lefamulin belonging to the pleuromutulins, colistin, fosfomycin, nitrofurantoin, tobramycin, amikacin, imipenem with relebactam, meropenem with waborbactam, ceftazidime with avibactam and plazomycin. In addition, the following drugs are under study: durlobactam with sulbactam, taniborbactam and cefepime with enmetazobactam This paper aims to summarize the current knowledge on GES-type carbapenemases, their diagnosis and treatment.
МЕЖДУ ЛИТВОЙ И АМЕРИКОЙ: ТЕКСТЫ И КОНТЕКСТЫ... ЛИТОВСКО-АМЕРИКАНСКИХ АВТОРОВ
Authors: Колевинскене Ж. 
Published: October 2024

В статье при обсуждении проблематики идентитета в современной литовской эмигрантской литературе в качестве опорной точки выбрана трехчленная структура: земля, язык, история. Проблематика идентичности и эмигрантский опыт раскрываются в текстах на английском языке, написанных американскими авторами литовского происхождения Рутой Шяпятис, Бируте Путриус, Антанасoм Шилейкой и др. Основной контекст роман Эптона Синклера Джунгли
In nowadays world the issue of mature modernity and similar personal identity remains of great signi cance. The research is dedicated to the Americanborn authors and authors of Exodus. In todays world, the real and the madeup Lithuania is both meaning and value for the identity of these writers. The Americanborn authors often name the relationship with Lithuania only as a symbolic construction determined by the values of its reference eld. However, this bond is vitally important and guarantees the continuity of nature in the world of crumbling meanings and splitting identities. In this case, the research focuses on a recently emerged phenomenon the literature about Lithuania and itsculture, history written in the English language. Authors of Lithuanian origin writing in English began speaking (and telling) about their cultural roots (Jul a Sukys, Lina ilionyt, Daiva Markelis and others). The authors, who do not speak Lithuanian (the language of their parents), have approached the problem of the deepest valuable component of national identity, that of the language. A single, pure and national identity is replaced with formation of several, intersecting complementary cultures a hybrid identity. The structure of national values of writers in a language other than Lithuanian is replaced with the new (most often English) language, which opens up new cultural possibilities, but limits the traditional ones. A threesegment structure of national values land, language, and history can be used as a reference point when discussing the problems of identity in contemporary Lithuanian migr literature. The problematics of identity and emigrant experience are revealed in texts written in English by North American authors of Lithuanian origin, such as Ruta Sepetys, Birute Putrius, Antanas Sileika and others. A novel The Jungle (1906) by Upton Sinclair serves as the main context. The book, which made the author worldfamous, tells the story about life of Chicago workers, an ordinary Lithuanian family which immigrated to the United States at the beginning of the 20th century. In order to nd and reestablish his or her inner center, an immigrant has to make an important choice. Contemporary Lithuanian migr literature testi es that this center has not yet been discovered or identi ed. The country and home that migr writers left behind are alien to them, however, a foreign land has not yet been domesticated. Therefore, very often a slightly romanticized emigrant idyll is replaced by a complaint, discontent, and disappointment. The myth of a good life collapses both in its own and in a foreign country
Experimental study on immiscible and miscible dynamic characteristics of CO2 and crude oil in visual slim tube
Authors: Zhang Xing , Ma Dongchen , Zhao Ruiming , Zhang Xiaoyu , Feng Jiajia , Feng Meng , Zhang Jin 
Published: October 2024

CO2 flooding for oil recovery is a dynamic process that requires further investigation of oil-gas interface change characteristics, interfacial mass transfer processes, and oil-gas composition variation during both immiscible and miscible displacement. Understanding these factors is crucial for better comprehending their impact on CO2-enhanced oil recovery (EOR). This research used a jointly developed CO2 miscible visual flooding experimental apparatus to study the horizontal dynamic characteristics of CO2 and crude oil under different pressures and flow rates in visual slim tube. At 10 MPa, the stratification results of CO2 and crude oil indicate that the experiment is immiscible flooding. The contact angle (7.9°) between the two phases of CO2 and crude oil at the flow rate of 15 cm/min is larger than that (5.2°) at 1.5 cm/min, and the grey scale of CO2 increases at 100 cm/min. The quantity, individual content, and shape of the light and medium hydrocarbon components condensed on the inner wall of the tube vary with different flow rates. At 15 MPa, the appearance of the CO2 and crude oil transition interval proves that the experiment is miscible flooding. At different flow rates, the inclination angle and distribution of black stripes vary. The whole transition interval is divided into 6 intervals, and the transition interval lengthens with increasing fluid velocity. The experiments visually demonstrate the occurrence of the miscible phase, and identify experimental pressure and fluid flow rate as key factors influencing the miscibility of CO2 and crude oil.
PENGARUH MODEL PEMBELAJARAN SEARCH, SOLVE, CREATE, AND SHARE (SSCS) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS PESERTA DIDIK
Authors: Chairani Nurfayza , Suprananto Suprananto 
Published: October 2024

This study aims to determine whether there is an effect of the Search, Solve, Create, and Share (SSCS) learning model on students' mathematical problemsolving ability and to see how much influence the SSCS learning model has on students' mathematical problemsolving skills. This research uses a quantitative approach with a quasi-experiment method with a pretest-posttest control group design. The population of this study were all VIII grade students in one of the junior high schools in Bogor Regency. The samples used were class VIII-2 as the control class using conventional learning model and class VIII-4 as the experimental class using SSCS learning model. Data was collected through a mathematical problemsolving ability test in the form of five description questions on Social Arithmetic material. The data obtained were analyzed using T test and Effect Size test. The results of data analysis showed that there was an effect of SSCS learning model on students' mathematical problemsolving ability. The effect size of SSCS learning model on students' mathematical problemsolving ability is 0.39 with moderate category.
PENGARUH MODEL PEMBELAJARAN PBL BERBANTUAN ICE BREAKING TERHADAP KEMAMPUAN REPRESENTASI MATEMATIS DAN KEMANDIRIAN BELAJAR SISWA KELAS VIII MTs ZIA SALSABILA
Authors: Fariha Maulia , Karo-Karo S Isran Rasyid 
Published: October 2024

This study aims to determine the effect of the Problem Based Learning learning model assisted by ice breaking on students' mathematical representation abilities and learning independence. The method used is a quantitative method with an experimental research type. The sample consists of 27 students of VIII B as an experimental class and 20 students of class VIII A as a control class at MTs Zia Salsabila Bandar Setia. The results of the study showed that the t-test analysis that had been carried out obtained a p-value = 0.00 0.05 and p-value = 0.0001 0.005. The data explains that is accepted and is rejected. The average n-gain obtained in the experimental class was 0.64 and 0.57 while the control class obtained a value of 0.16 and 0.29 so that the average difference in n-gain was 0.48 and 0.28. Based on these data, it can be concluded that the mathematical representation ability and learning independence of students who learn using the PBL learning model assisted by ice breaking are better than students who learn in class with conventional learning models. There is an influence of the use of the PBL learning model assisted by ice breaking on students' mathematical representation abilities and learning independence.
PENERAPAN MODEL PEMBELAJARAN STAD BERBANTUAN QUIZIZZ PAPER MODE PADA SISWA KELAS VIII SMP
Authors: Tiara Dea , Mulyono Dodik , Purwasi Lucy Asri 
Published: October 2024

This study aims to determine the mathematics learning outcomes of class VIII students of SMP IT Annida Lubuklinggau after the application of the STAD model assisted by Quizizz Paper Mode. The research method uses a quasi-experimental method (Pre-Experimental Designs) in the form of One-Group Pre-test-Post-test Design. The population of this study was all class VIII students of SMP IT Annida Lubuklinggau and the research sample was class VIII.3. The data collection technique was in the form of 5 essay questions. The data analysis technique used the t-test. The results of the study showed that the average mathematics learning outcomes of class VIII students of SMP IT Annida Lubuklinggau after the application of the Student Teams Achievement Division (STAD) model assisted by Quizizz Paper Mode were significantly complete. The results of the calculation of the Pre-test mathematics learning outcomes obtained an average value of 41.77 while the results of the calculation of the Post-test obtained an average value of 77.14. Based on the t-test analysis, it was obtained that tcount = 4.35 with a significance level of α = 5% or α = 0.05 obtained ttable = 2,045, this shows that tcountttable, namely 4.35 2,045, so it can be concluded that the implementation of the Student Teams Achievement Division (STAD) model assisted by Quizizz Paper Mode was significantly complete.
PENGEMBANGAN SKENARIO PEMBELAJARAN AKTIF BERBASIS MIKiR UNTUK SISWA KELAS V PADA PEMBELAJARAN MATEMATIKA DI SEKOLAH DASAR
Authors: Reflina Reflina , Rambe Riris Nurkholidah 
Published: October 2024

Learning scenario is the important thing in teaching process. Designing of good learning scenario is one of effort to increase learning quality. The aims of this study is to see the validity and practicality of the developed MIKiR-based active learning scenario. This study was carried out at the Integrated Islamic Elementary School (SDIT) Nurul Ilmi with the number of study subjects are 40 students from two fifth grades of Mathematics. The method used to develop the MIKiR-based active learning scenario is ADDIE (Analysis, Design, Development, Implementation, and Evaluation). The study instruments used in this study were: validation sheets to measure product feasibility, and teacher response questionnaires to see the practicality of the product. The results obtained are as follows, for the level of validity of the MIKiR-based active learning scenario, the average score is 3.67 with a very valid category consisting of three aspects, namely content, material, form, presentation, language, and legibility. Furthermore, the level of practicality obtained a very practical category with an average value of 84.76%. This can be seen from four aspects, namely the attractiveness of the device to student interest, ease of use and content, increased student activity, and time efficiency.
ANALYZING THE EFFECT OF SUCCESSION PLANNING AND LEADERSHIP DEVELOPMENT ON SUSTAINABLE ORGANIZATION PERFORMANCE: A STUDY OF IT-ENABLED SECTOR COMPANIES
Authors: Kulkarni Sachidanand Ramrao 
Published: October 2024

The world is moving towards an economy in which an organization's knowledge is its most valuable asset (Al Khajeh, 2018). Therefore, it is necessary to continuously improve the professional skills and knowledge of the employees in order to complement the standardized competence that they require in order to complete their jobs. And achieving this requires quality leadership to trickle down from the top management. Numerous scholars investigate leadership styles in order to quantify the impact they have on employee performance, thus further affecting organizational performance as a whole (Cherian et al.,2020). Employee loyalty and motivation to work well will increase when leaders grant them autonomy, improving organizational productivity and producing better results in terms of organizational performance.
Update on the diversity of cicadas (Hemiptera: Cicadidae) in the province of Jujuy (Argentine Republic)
Authors: Sanborn Allen , Zamar María Inés , Linares Mario Alfredo , Ortiz F´élix , Burgos Freddy , Farfán César Mariano , D’occio Melisa 
Published: October 2024

The first records of Proarna inignis Distant, Dorisiana metcalfi Sanborn & Heath, Guyalna cuta (Walker), Quesada gigas (Olivier), Carineta crassicauda Torres, and Herrera umbraphila Sanborn & Heath are provided for the province of Jujuy. Included are the first provincial records for the genera Dorisiana Metcalf, Guyalna Boulard & Martinelli, and Quesada Distant. The additions increase the known cicada diversity 66.7% bringing the total known alpha diversity in Jujuy to 15 species representing 11 genera, five tribes, and three subfamilies.
GKM Test Rig: Investigation of the Long Term Operation Behavior of Tubes and Forgings Made of Alloys for Future High Efficient Power Plants
Authors: Metzger K. , Czychon K. H. , Maile K. , Klenk A. , Helmrich A. , Chen Q. 
Published: October 2024

Abstract
This paper introduces the GKM (Grosskraftwerk Mannheim AG) test rig, designed to evaluate new Ni-based alloys and austenitic steels for components in advanced 700°C power plants under real operational conditions. The test rig, integrated into a conventional coal-fired power plant in Mannheim, Germany, simulates extreme conditions of up to 725°C and 350/200 bar pressure. After approximately 2000 hours of operation, the paper presents an overview of the rig's design, its integration into the existing plant, and the status of ongoing tests. It also outlines parallel material investigations, including creep rupture tests, mechanical-technological testing, and metallurgical characterization. This research is crucial for the development of materials capable of withstanding the severe conditions in next-generation power plants, potentially improving efficiency and performance in future energy production.
Evaluation of 18Cr-9Ni-3Cu-Nb-N Austenitic Stainless Tubes for Ultra-Supercritical Power Boiler
Authors: Kaiyun Zheng , Yanfeng Wang , Zhengqiang Cui 
Published: October 2024

Abstract
Creep-resistant austenitic stainless steels are known to be the potential candidate materials for use as super- and re-heater tubes in ultra-super critical (USC) power plants. Among them, ASTM A213/A213M S30432, a novel 18-8 stainless steel (18Cr- 9Ni-3Cu-Nb-N), has attracted considerable attention from electric industry due to its combined lower cost and more excellent performance in contrast to traditional TP347H steel. More than 10 years of service in Japan laid a solid foundation for the steel being selectable USC boiler materials. Steels of S30432 have been recently developed in China during the past few years. This paper presents the evaluation results of S30432 tubes manufactured by four steel plants in China as well as Sumitomo super304H tubes for comparison. A detailed microstructural analysis of the tubes has been performed by using optical and electron microscope, and mechanical properties of the tubes have been evaluated using hardness testing as well as tensile testing up to 700°C. It was found that the impurity elements, nonmetallic inclusions and grain size of the S30432 tubes were well controlled. TEM observation revealed the microstructural changes for a selected batch of S30432 specimens in condition of hot rolled material, as-extruded tube, solution treated tube and 650°C/1000h aged tube. Most attention was paid to the morphology and distribution of precipitates in the microstructure which should be responsible for the enhanced performance of the steel. Although the hardness of all the evaluated tubes was measured to be similar, they showed more or less differences in tensile properties between each other. Creep rupture testing is still in progress, and the steel might exhibit excellent long-term creep rupture strength at 650°C as was predicted from the currently available testing results.
Low Thermal Expansion Ni-Base Superalloy for 700 C Class Steam Turbine Plant (USC141)
Authors: Kamoshida H. , Imano S. , Saito E. , Uehara T. , Toga T. , Nonomura T. 
Published: October 2024

Abstract
Hitachi and Hitachi Metals have developed low thermal expansion Ni-base superalloy, Ni-20Cr-10Mo-1.2Al-1.6Ti alloy (USC141) for use as A-USC steam turbine material. The approximate 105 h creep rupture strength at 740° C is 100MPa, so USC141 can be expected to apply for blades and bolts. Now we have been studying to get better creep properties by microstructure controlling such as grain size or grain boundary morphology. In addition, the segregation test of USC141 shows good Freckle tendencies, it means that it would be easy to make a large ingot which could be used as rotors or pipes. From these calculation results, we have been tried to make an 850mmϕ ESR ingot of USC141.
High-Temperature Erosion Testing Standard and Round Robin Testing
Authors: Swaminathan V.P. , Smith Jeffery S. , Gandy Dave 
Published: October 2024

Abstract
An international initiative is underway to develop the first standardized high-temperature solid particle erosion test method for steam turbine applications, addressing limitations of the current room-temperature ASTM G76 standard. Led by EPRI, this program involves laboratories from seven countries in a “Round Robin” testing program, aiming to establish consistent testing procedures for evaluating erosion resistance of materials used in Ultra Supercritical (USC) and advanced USC turbines. The proposed standard will use Type 410 stainless steel tested at 30 and 90-degree impingement angles with 50-micron alumina particles at 200 m/s, both at room temperature and 600°C, providing more relevant conditions for current and next-generation steam turbine applications.
Validation of Creep Crack Growth NSW Model in Extrapolating Short-Term Laboratory Test Results to Longer-Term Service Component Failure Prediction
Authors: Maleki Shervin , Zhang Yan-Hui , Nikbin Kamran 
Published: October 2024

Abstract
The extrapolation of short-term laboratory test results to predict long-term high-temperature component failure remains challenging, particularly for P91 steel due to its phase transformation during extended service and susceptibility to type IV cracking. While the NSW model successfully predicts creep crack growth bounds using short to medium-term test data (&lt;10,000 hours), recent literature suggests materials may exhibit more brittle behavior and reduced failure strain in longer-term tests. This study examines whether the NSW model, using short-term uniaxial data, can effectively predict these long-term behavioral changes for more accurate service life assessment.
New Concepts for Integrity and Lifetime Assessment of Boiler and Turbine Components for Advanced Ultra-Supercritical Fossil Plants
Authors: Feuillette C. , Schmidt K. , Maile K. , Klenk A. , Roos E. 
Published: October 2024

Abstract
Advanced ultra-supercritical fossil plants operated at 700/725 °C and up to 350 bars are currently planned to be realized in the next decade. Due to the increase of the steam parameters and the use of new materials e.g. 9-11%Cr steels and nickel based alloys the design of highly loaded components is approaching more and more the classical design limits with regard to critical wall thickness and the related tolerable thermal gradients. To make full use of the strength potential of new boiler materials but also taking into account their specific stress-strain relaxation behavior, new methods are required for reliable integrity analyses and lifetime assessment procedures. Numerical Finite Element (FE) simulation using inelastic constitutive equations offers the possibility of “design by analysis” based on state of the art FE codes and user-defined advanced inelastic material laws. Furthermore material specific damage mechanisms must be considered in such assessments. With regard to component behavior beside aspects of multiaxial loading conditions must be considered as well as the behavior of materials and welded joints in the as-built state. Finally an outlook on the capabilities of new multi-scale approaches to describe material and component behavior will be given.
Microstructural Evolution of P92 Steel during Creep
Authors: Zhao Qinxin , Li Ting , Deng Xiang , Cheng Dingnan 
Published: October 2024

Abstract
In this paper, the microstructural evolution of P92 steel were studied in the viewpoint of degradation mechanism based on the creep rupture experiment results obtained at elevated temperature by means of macroscopic, metallographic, electronic microscope, energy spectrum, XRD and TEM examination. The results show that the decrease of mechanical properties of P92 steel is mainly due to the change of microstructure and the transformation of carbides, and there is definite relationship between microstructure evolution, mechanical properties and life loss of P92 steel. The results are beneficial to the further study of mechanism of high temperature creep rupture strength and microstructural evolution of heat-resistant steel. It also has important instructive significance to quantitative identification of scientific selection of materials.
Long-Term Creep Strength Property of Advanced Ferritic Creep Resistant Steels
Authors: Kimura K. , Sawada K. , Kushima H. 
Published: October 2024

Abstract
Long-term creep strength property of creep strength enhanced ferritic steels was investigated. Stress dependence of minimum creep rate was divided into two regimes with a boundary condition of macroscopic elastic limit which corresponds to 50% of 0.2% offset yield stress (Half Yield). High rupture ductility was observed in the high stress regime above Half Yield, and it was considered to be caused by relatively easy creep deformation throughout grain interior with the assistance of external stress. Grades T23, T/P92 and T/P122 steels represented marked drop in rupture ductility at half yield with decrease in stress. It was considered to be caused by inhomogeneous recovery at the vicinity of prior austenite grain boundary, because creep deformation was concentrated in a tiny recovered area. High creep rupture ductility of Grade P23 steel should be associated with its lower creep strength. It was supposed that recovery of tempered martensitic microstructure of T91 steel was faster than those of the other steels and as a result of that it indicated significant drop in long-term creep rupture strength and relatively high creep rupture ductility. The long-term creep rupture strength at 600°C of Grade 91 steel decreased with increase in nickel content and nickel was considered to be one of the detrimental factors reducing microstructural stability and long-term creep strength. The causes affecting recovery of microstructure should be elucidated in order to obtain a good combination of creep strength and rupture ductility for long-term.