bluuebunny/crossref_metadata_2025_split huggingface dataset:
Response of extreme precipitation to climatic warming in the Weihe river basin, China and its mechanism
Authors: Wu Bohua , Quan Quan , Huang Xifeng , Deng Jiaxiang 
Published: September 2022

Abstract
As global warming continues, extreme precipitation events occur frequently in inland areas, seriously affecting human security and the ecological environment. Spatiotemporal evolution of extreme precipitation as well as response of extreme precipitation to climatic warming and its mechanism were investigated by considering the Weihe river basin in a monsoon transition zone of China as a research object. The results indicate that while the annual average temperature of the Weihe river basin increased with fluctuations from 1966 to 2017, except for the consecutive dry days (CDD) and simple daily intensity index that increased slightly, the other extreme precipitation indices (consecutive wet days, R25, and Rx5day) tended to decrease. Moreover, except for the CDD, the other four indices gradually increased from the northwest to the southeast, showing a similar trend to the temperature. The relationship between the 95th percentile threshold and temperature (hereinafter referred to as the P
95d–T relationship) in the Weihe river basin demonstrates the hook structure and its strength in terms of response is mainly dominated by the super-Clausius–Clapeyron (C–C) and C–C scaling. Furthermore, the peak temperature rises gradually from the northwest to the southeast. The results can provide important reference for the prediction of climate change and future studies of disaster risk in the Weihe river basin.
Study on hydrogen-induced stress corrosion of 7N01-T4 aluminum alloy for railway vehicles
Authors: Zhang Li-jiao , Li Ming-gao 
Published: September 2022

Abstract
7N01-T4 aluminum alloy is widely applied to high speed train body material attributed to its excellent comprehensive mechanical properties; however, its high sensitivity to hydrogen stress corrosion would seriously restrict its further application. In this study, the hydrogen-induced stress corrosion of the base metal and the joint was investigated under slow strain rate test to ascertain the characteristics and mechanism of hydrogen-induced stress corrosion cracking of aluminum alloy. By applying the cathode potential, the morphology of tensile port was studied. Results show that under the action of tensile stress, the free atomic hydrogen produced in the corrosion process or absorbed hydrogen diffuses along the grain boundary into the crack tip region, weakens the grain boundary and causes hydrogen embrittlement, thus accelerating the crack propagation and fracture. These properties provide a broader prospect for the application of 7N01-T4 aluminum alloy in high-speed train body.
Design and simulation of vehicle vibration test based on virtual reality technology
Authors: Huo Zhiyi , Luo Xinwen , Wang Qian , Jagota Vishal , Jawarneh Malik , Sharma Manish 
Published: September 2022

Abstract
When a car is operating, the road roughness will cause it to vibrate. When this vibration reaches a particular threshold, the driver will get uncomfortable and fatigued, affecting the bearing system’s durability and longevity. The vehicle vibration virtual test system’s framework design and implementation approach is based on virtual reality (VR), and it is made up of a VR subsystem, a model subsystem, and a virtual instrument subsystem. A virtual car vibration test system based on VR is built, and the results of the virtual vehicle vibration test are reported. The findings indicate that the virtual test (VT) technology theoretical model pertains to the creation of VT systems for car vibration based on VR. Users may monitor the vehicle vibration as well as its time domain and frequency domain signals in three separate observation modes using the system.
Generalized invexity and duality in multiobjective variational problems involving non-singular fractional derivative
Authors: Dubey Ved Prakash , Kumar Devendra , Alshehri Hashim M. , Singh Jagdev , Baleanu Dumitru 
Published: September 2022

AbstractIn this article, we extend the generalized invexity and duality results for multiobjective variational problems with fractional derivative pertaining to an exponential kernel by using the concept of weak minima. Multiobjective variational problems find their applications in economic planning, flight control design, industrial process control, control of space structures, control of production and inventory, advertising investment, impulsive control problems, mechanics, and several other engineering and scientific problems. The proposed work considers the newly derived Caputo–Fabrizio (CF) fractional derivative operator. It is actually a convolution of the exponential function and the first-order derivative. The significant characteristic of this fractional derivative operator is that it provides a non-singular exponential kernel, which describes the dynamics of a system in a better way. Moreover, the proposed work also presents various weak, strong, and converse duality theorems under the diverse generalized invexity conditions in view of the CF fractional derivative operator.
Outcomes of acute ischemic stroke in kidney transplant recipients: An analysis of US Nationwide inpatient sample
Authors: Zhang Lei , Wang Zhipeng , Lv Jingcheng , Zheng Mengmeng , Zhu Yichen 
Published: September 2022

Abstract
A kidney transplant is often the treatment of choice for end-stage kidney disease, compared with a lifetime on dialysis. Kidney transplant recipients (KTRs) have a reduced risk for new strokes than patients with chronic kidney disease (CKD) G5 treated by dialysis (CKD G5D). However, the benefit of Kidney transplant on post-stroke hospitalization outcomes has not been well studied. This study aimed to evaluate the outcomes of hospitalization after acute ischemic stroke (AIS) in KTRs and patients with CKD G5D. This retrospective study used patient data from the US Nationwide Inpatient Sample database. From 2005 to 2018, patients hospitalized with AIS were classified into 3 groups, including KTRs (n = 1,833), patients with CKD G5D (n = 26,767), and those without CKD (CKD-free, n = 986,945). Patients with CKD G1–G4 or unspecified stage, and graft failure requiring dialysis were excluded. In-hospital mortality, medical complications, transfer to nursing homes, and length of stay (LOS) were compared. Compared to CKD-free group, KTRs had no significant higher risks for in-hospital mortality, transfer to nursing homes, and LOS, but a greater risk for medical complications after adjusting for relevant factors. CKD G5D group had higher risks for in-hospital mortality (adjusted odds ratio (aOR): 2.04, 95% confidence interval (CI): 1.93–2.15), medical complications (aOR: 1.49, 95% CI: 1.45–1.54), and transfer to nursing homes (aOR: 1.10, 95% CI: 1.07–1.13), and a 0.07 day (95% CI: 0.06–0.08) longer LOS than CKD-free group. In conclusion, the outcomes of AIS hospitalization were more favorable in KTRs as compared with CKD G5D. Furthermore, the risks for in-hospital mortality, transfer to long-term care facilities, and LOS were not significantly different between KTRs and CKD-free patients.
Presence of an Overhead Goal Does Not Improve the Effectiveness of Jump Training
Authors: Akbaş Anna , Marszałek Wojciech , Król Henryk 
Published: September 2022

Abstract
Akbaş, A, Marszałek, W, and Król, H. Presence of an overhead goal does not improve the effectiveness of jump training. J Strength Cond Res 37(4): e280–e288, 2023—This study investigated the effectiveness of jump training with and without an overhead goal (OG) on a modified countermovement jump (CMJ) tested in a similar manner, with and without OG. Fifty-two men divided into 3 groups—trained with OG, trained without OG, and untrained—were examined: before the commencement of training; after 2, 4, and 6 weeks of training; and 2 weeks after the discontinuation of training. Each session consisted of 50 modified CMJ and was performed 3 times per week. Countermovement jump height, mean power, peak power, countermovement depth, and take-off phase time were quantified, and the statistical level was set at p < 0.05. Although the results showed the beneficial effect of OG on jump height (p < 0.01), the training with OG did not bring significantly better results than training without OG. In addition, the group trained without OG improved after 2 weeks in both testing conditions (with and without OG), whereas the group trained with OG improved after 2 weeks when tested with OG and only after 6 weeks when tested without OG. We believe the use of OG in jump training may be detrimental when the OG is withdrawn from the testing procedure because of its strong motivational and feedback features. Consequently, athletes in disciplines which require them to jump toward an object located over their head during a game, e.g., a ball or crossbar, should be tested with the presence of OG. Despite this, OG is still an important factor in maximizing jump performance.
Recycled Concrete Aggregate Drainage Effectiveness in a French Drainage System: A Full-Scale In Situ Study
Authors: An Jinwoo , Copeland Timothy , Nam Boo Hyun 
Published: September 2022

Abstract
The in situ/full-scale performance of recycled (or reclaimed) concrete aggregate (RCA) as a pipe bedding and backfill material of a French drainage system is investigated in this paper. The project’s purpose is to evaluate the effectiveness of full-scale French drainages in the field for long-term exfiltration drainage. Four French drains were built with a distinct material condition, namely, limestone, RCA “as is,” RCA with 2 % more particles, and RCA with 4 % more particles. The exfiltration subdrainage performance of each RCA French drainage system was evaluated using laboratory and field experiments. For a period of 12 months in the field, the flow rate and discharge rate of those drainage systems were tracked and quantified to establish the average permittivity of each trench. The laboratory testing program included exfiltration testing of nonwoven fabric (geotextiles) and RCA material characterization. After the 12-month period, geotextiles from each of the RCA French drainage systems were taken out and the average permittivity was measured. The findings indicate that the permeability of the surrounding soils and the existing groundwater table are the two most important elements impacting the subdrainage performance (exfiltration) of French drain systems. Notably, the type of aggregate (e.g., RCA or limestone) has a minimal impact on their exfiltration effectiveness. In conclusion, using RCA as a subdrainage material does not cause a substantial reduction in drainage system exfiltration performance compared with natural aggregate (limestone).
ACTH-independent production of 11-oxygenated androgens and glucocorticoids in an adrenocortical adenoma
Authors: Kitamura Takuya , Blinder Amy R , Nanba Kazutaka , Tsuiki Mika , Mishina Mutsuki , Okuno Hiroshi , Moriyoshi Koki , Yamazaki Yuto , Sasano Hironobu , Yoneyama Keisuke , Udager Aaron M , Rainey William E , Yasoda Akihiro , Satoh-Asahara Noriko , Tagami Tetsuya 
Published: September 2022

Abstract
Although excess production of androgens and glucocorticoids has often been observed in adrenocortical carcinomas, adrenocortical adenoma with such hormonal activity is rare. Herein, we report a 41-year-old woman who presented with hyperandrogenemia and mild autonomous cortisol secretion with an undetectable level of adrenocorticotropic hormone. Imaging demonstrated a 6 cm left adrenal tumor. The histologic diagnosis of the resected adrenal tumor was adrenocortical adenoma. Pre- and post-operative serum samples were used for steroid profiling with liquid chromatography-tandem mass spectrometry (LC-MS/MS). LC-MS/MS analysis of pre-operative serum revealed an abnormal buildup of steroid precursors and androgens. Importantly, circulating levels of 11-oxygenated androgens, including 11β-hydroxytestosterone (11OHT) and 11-ketotestosterone (11KT), were highly elevated. Both androgen and glucocorticoid levels significantly decreased post-operatively. Immunohistochemical analysis of steroidogenic enzymes and cofactor protein supported the tumor's ability to directly produce 11OHT and 11KT. This study is the first to describe and characterize an adrenocortical adenoma that co-secretes glucocorticoids and 11-oxygenated androgens.

Significance statement
Due to its rarity, biochemical and histologic characteristics of androgen and glucocorticoid co-secreting adrenocortical adenomas are largely unknown. Herein, we report a case of adrenocortical adenoma that caused marked hyperandrogenemia and mild autonomous cortisol secretion. In this study, we investigated serum steroid profiles using liquid chromatography-tandem mass spectrometry (LC-MS/MS) and histologic characteristics of the resected tumor. LC-MS/MS revealed highly elevated levels of 11-oxygenated androgens which have not been well studied in adrenal tumors. The expression patterns of steroidogenic enzymes determined by immunohistochemistry supported the results of steroid profiling and suggested the capacity of the tumor cells to produce 11-oxygenated androgens. Measurement of 11-oxygenated steroids should facilitate a better understanding of androgen-producing adrenocortical neoplasms.
Perfil de vitamina E en semillas de variedades de arroz (Oryza sativa L.) cultivadas y comercializadas en Costa Rica
Authors: Conejo-López Valery , Barboza-Barquero Luis , Azofeifa-Delgado Álvaro , Vargas-Ramírez Ester , Irías-Mata Andrea 
Published: September 2022

Introducción. El arroz (Oryza sativa L.) es uno de los cereales más consumidos a nivel mundial, las subespecies índicas y japónicas son las más cultivadas. La vitamina E presente en el arroz posee alta actividad antioxidante que contribuye a extender la longevidad de sus semillas. Su cuantificación permite conocer el aporte nutricional respecto a esta vitamina. Objetivo. Analizar el perfil de vitamina E en semillas de las subespecies de arroz (O. sativa L.) índicas (comerciales registradas, aromáticas, promisorias en desarrollo) y japónicas, consumidas en Costa Rica. Materiales y métodos. Se analizaron veintisiete materiales cultivados en las regiones Chorotega y Brunca, Costa Rica, cosechados en 2020. Se cuantificó la vitamina E por cromatografía líquida de ultra-alta resolución acoplado a detección por masas de cuadrupolo triple con fuente de ionización química a presión atmosférica, en el Centro para Investigaciones en Granos y Semillas (CIGRAS), Universidad de Costa Rica, en 2021. Resultados. En el perfil de vitamina E se obtuvo un agrupamiento característico para las muestras japónicas, opuesto al presentado por las muestras índicas. Los compuestos mayoritarios fueron γ-tocotrienol, α-tocoferol y γ-tocoferol, el rango de concentración total de vitamina E fue de 5,50 a 33,20 μg g-1, donde la subespecie japónica fue la que reportó menor cantidad (6,30 – 8,80 μg g-1), mientras que la muestra Nayuribe, perteneciente a la subespecie índica comercial registrada obtuvo la concentración más alta (33,20 ± 7,40 μg g-1). Conclusión. Aunque las subvariedades analizadas son filogenéticamente de la misma especie, las diferencias significativas encontradas en el aporte nutricional de vitamina E pueden deberse a características intrínsecas de cada subespecie. El contenido significativamente alto de vitamina E de la muestra Nayuribe evidenció que es posible encontrar acervos para alto contenido de vitamina E entre las variedades analizadas.
Size-dependent geometrically necessary dislocation structures in single-crystalline tungsten
Authors: Wang Jin , Luan Likang , Volz Tillmann , Weygand Sabine M. , Schwaiger Ruth 
Published: September 2022

Abstract
Wedge indentation experiments were conducted to study the depth dependence of geometrically necessary dislocation (GND) structures in single-crystalline tungsten. Single-crystalline tungsten exhibits a pronounced indentation size effect (ISE), which can be rationalized based on GNDs. The dislocation mechanisms, however, are still under debate. Due to the plane strain condition during the wedge indentation, the dislocations in the cross sections underneath indents could be analyzed based on the Nye tensor and the lattice rotations determined using transmission Kikuchi diffraction. The dislocation structures depend on the size of the indent confirming the different hardness regimes and the bilinear ISE reported recently. For shallow indents, the dislocations are rather localized at the tip of the indent, while with increasing depth the dislocation volume expands; subgrains and distinct rays of increased dislocation density form. At larger depths, the indentation-induced deformation fields exhibit characteristics similar to the kink-type shear at a stationary crack tip.

Graphical abstract
Scalable, Parallel Best-First Search for Optimal Sequential Planning
Authors: Kishimoto Akihiro , Fukunaga Alex , Botea Adi 
Published: September 2022

Large-scale, parallel clusters composed of commodity processors are increasingly available, enabling the use of vast processing capabilities and distributed RAM to solve hard search problems. We investigate parallel algorithms for optimal sequential planning, with an emphasis on exploiting distributed memory computing clusters. In particular, we focus on an approach which distributes and schedules work among processors based on a hash function of the search state. We use this approach to parallelize the A* algorithm in the optimal sequential version of the Fast Downward planner. The scaling behavior of the algorithm is evaluated experimentally on clusters using up to 128 processors, a significant increase compared to previous work in parallelizing planners. We show that this approach scales well, allowing us to effectively utilize the large amount of distributed memory to optimally solve problems which require hundreds of gigabytes of RAM to solve. We also show that this approach scales well for a single, shared-memory multicore machine.
Structural-Pattern Databases
Authors: Katz Michael , Domshlak Carmel 
Published: September 2022

Explicit abstraction heuristics, notably pattern-database and merge-and-shrink heuristics, are employed by some state-of-the-art optimal heuristic-search planners. The major limitation of these abstraction heuristics is that the size of the abstract space has to be bounded by a (large) constant. Targeting this issue, Katz and Domshlak (2008b) introduced structural, and in particular fork-decomposition, abstractions, in which the planning task is abstracted by an instance of a tractable fragment of optimal planning. At first view, however, the lunch was not free. Some of the power of the explicit abstraction heuristics comes from pre-computing the heuristic function offline, and then determine h(s) for each evaluated state s by a very fast lookup in a "database." In contrast, fork-decomposition offer a poly-time, yet far from being fast, computation. In this contribution, we show that the time-per-node complexity bottleneck of the fork-decomposition heuristics can be successfully overcome. Specifically, we show that an equivalent of the explicit abstractions' notion of "database" exists for the fork-decomposition abstractions as well, and this despite of their exponential-size abstract spaces. Experimentally, we show that heuristic search with such "databased" fork-decomposition heuristics favorably competes with the state-of-the-art of optimal planning.
Acquisition of Object-Centred Domain Models from Planning Examples
Authors: Cresswell Stephen , McCluskey Thomas , West Margaret 
Published: September 2022

The problem of formulating knowledge bases containing action schema is a central concern in knowledge engineering for AI Planning. This paper describes LOCM, a system which carries out the automated induction of action schema from sets of example plans. Each plan is assumed to be a sound sequence of actions; each action in a plan is stated as a name and a list of objects that the action refers to. LOCM exploits the assumption that actions change the state of objects, and require objects to be in a certain state before they can be executed. The novelty of LOCM is that it can induce action schema without being provided with any information about predicates or initial, goal or intermediate state descriptions for the example action sequences. In this paper we describe the implemented LOCM algorithm, and analyse its performance by its application to the induction of domain models for several domains. To evaluate the algorithm, we used random action sequences from existing models of domains, as well as solutions to past IPC problems.
Concurrent Plan Recognition and Execution for Human-Robot Teams
Authors: Levine Steven , Williams Brian 
Published: September 2022

There is a strong demand for robots to work in environments, such as aircraft manufacturing, where they share tasks with humans and must quickly adapt to each other's needs. To do so, a robot must both infer the intent of humans, and must adapt accordingly. The literature to date has made great progress on these two tasks - recognition and adaptation - but largely as separate research activities. In this paper, we present a unified approach to these two problems, in which recognition and adaptation occur concurrently and holistically. Key to our approach is a task representation that uses choice to represent alternative plans for both the human and robot, allowing a single set of algorithms to simultaneously achieve recognition and adaptation. To achieve such fluidity, a labeled propagation mechanism is used where decisions made by the human and robot during execution are propagated to relevant future open choices, as determined by causal link analysis, narrowing the possible options that the human would reasonably take (hence achieving intent recognition) as well as the possible actions the robot could consistently take (adaptation). This paper introduces Pike, an executive for human-robot teamwork that quickly adapts and infers intent based on the preconditions of actions in the plan, temporal constraints, unanticipated disturbances, and choices made previously (by either robot or human). We evaluate Pike's performance and demonstrate it on a household task in a human-robot team testbed.