Halytsian-Volynian Principality: ethymology of the concept, authorities and their status

Purpose. The purpose of the study is to establish the authenticity and legal grounds for the application in relation to the state formation that existed in Galicia and Volhynia in the XIІ – XIII centuries. Names principality or kingdom. Methods. The methodological basis of the study was a set of general scientific, special scientific and philosophical methods, as well as the principles of historicism and objectivity. The key method was historical retrospective and comparative approach, which allowed determining the features and etymology of the concepts of «state», «kingdom», «principality». Results. It is established that there are approaches in the Ukrainian historical and legal nation to the name of the state formation that existed in Galicia and Volhynia in the XII-XIV centuries. – «principality», «kingdom», «state», is evidence that this issue is poorly understood and requires detailed attention of scientists. First, it is advisable to streamline both the terminology and approaches to understanding the key stage of nation building. It is stated that the established practice of simultaneous and parallel application of the terms Galicia-Volyn principality, Galicia-Volyn state and even the Kingdom of Rus, does not rely on existing legal, political and historical circumstances. Their use is usually in the form of synonyms, which is not entirely correct from a scientific point of view. In this case, the authoritative titles of «king» and «prince» are equivalent, and their formal difference is the symbol of power – the crown, because there is no reliable information about a similar element of power in Russia. Scientific novelty. The analysis of etymological and scientific approaches to the concepts «Galicia-Volyn principality», «Galicia-Volyn state» and «Kingdom of Russia» is given, the legal bases of application of each of them are defined. Practical significance. The results of the study can be used in further historical and legal research, preparation of special courses.

Design Flow and Methodology for Dynamic and Static Energy-constrained Scheduling Framework in Heterogeneous Multicore Embedded Devices

With Internet of things technologies, billions of embedded devices, including smart gateways, smart phones, and mobile robots, are connected and deeply integrated. Almost all these embedded devices are battery-constrained and energy-limited systems. In recent years, several works used energy pre-assignment techniques to study the dynamic energy-constrained scheduling of a parallel application in heterogeneous multicore embedded systems. However, the existing energy pre-assignment techniques cannot satisfy the actual energy constraint, because it is the joint constraint on dynamic energy and static energy. Further, the modeling and verification of these works are based on the simulations, which have not been verified in real embedded devices. This study aims to propose a dynamic and static energy-constrained scheduling framework in heterogeneous multicore embedded devices. Solving this problem can utilize existing energy pre-assignment techniques, but it requires a deeply integrated design flow and methodology. The design flow consists of four processes: (1) power and energy modeling; (2) power parameter measurement; (3) basic framework design including energy pre-assignment; and (4) framework optimization. Each design flow has corresponding design methodology. Both our theoretical analysis and practical verification using the low-power ODROID-XU4 device confirm the effectiveness of the proposed framework.

Inguinal lymphadenitis due to invasion of Dirofilaria repens

The paper presents the case of the right-sided inguinal inflammation of a lymph node as a result of invasion of Dirofilaria repens, the parasitic pathogen of subcutaneous dirofilariasis in animals of the canine family. The diagnosis was verified on the basis of the parallel application of morphological studies of cross sections of the nematode in histological samples and the molecular biological method polymerase chain reaction of scrapings of histological material. The localization of this helminth inside the cavities of the human body is extremely rare. Only isolated cases of atypical localization of D. repens are described: in the organs of the chest, cervical lymphatic node in the spermatic cord and epididymis, which led to pseudotumor formations that needed to be differentiated with neoplastic processes. This case is of great interest to experts of various fields (surgeons, oncologists, infectious disease specialists and pathologists), primarily in the differential diagnosis of malignant neoplasms of the lymphatic system.

Task-Level Aware Scheduling of Energy-Constrained Applications on Heterogeneous Multi-Core System

Minimizing the schedule length of parallel applications, which run on a heterogeneous multi-core system and are subject to energy consumption constraints, has recently attracted much attention. The key point of this problem is the strategy to pre-allocate the energy consumption of unscheduled tasks. Previous articles used the minimum value, average value or a power consumption weight value as the pre-allocation energy consumption of tasks. However, they all ignored the different levels of tasks. The tasks in different task levels have different impact on the overall schedule length when they are allocated the same energy consumption. Considering the task levels, we designed a novel task energy consumption pre-allocation strategy that is conducive to minimizing the scheduling time and developed a novel task schedule algorithm based on it. After getting the preliminary scheduling results, we also proposed a task execution frequency re-adjustment mechanism that can re-adjust the execution frequency of tasks, to further reduce the overall schedule length. We carried out a considerable number of experiments with practical parallel application models. The results of the experiments show that our method can reach better performance compared with the existing algorithms.

Resource-Aware Device Allocation of Data-Parallel Applications on Heterogeneous Systems

As recent heterogeneous systems comprise multi-core CPUs and multiple GPUs, efficient allocation of multiple data-parallel applications has become a primary goal to achieve both maximum total performance and efficiency. However, the efficient orchestration of multiple applications is highly challenging because a detailed runtime status such as expected remaining time and available memory size of each computing device is hidden. To solve these problems, we propose a dynamic data-parallel application allocation framework called ADAMS. Evaluations show that our framework improves the average total execution device time by 1.85× over the round-robin policy in the non-shared-memory system with small data set.

Optimization of the internal procurement process at the world's leading producer of phosphate rock

Purpose: This article discuss the results of a field study that was carried out over a 6 months period. The objective of this research aimed at studying the internal procurement system of one of the world's leading Moroccan companies that has a 4.3% contribution to the national GDP. Design/methodology/approach: Our work, based first of all on the elaboration of an overview and then on the use of more than 6 methods and logistic tools, will allow this company to develop its own procurement method, adapted to its constraints and capacities. Findings: In terms of figures, this company sources 157 items from several suppliers. These references are then stored initially in the company's store, and depending on the demand from internal customers, a distribution is subsequently planned. A shortage of stock on some items and overstocking on others is a blatant contradiction suggesting several paths for improvement. Ultimately, the results of our work have enabled us to reduce financial immobilization by 40%, as well as a considerable gain in storage space. Practical implications: This paper shows the importance of responding to the problems of large companies with adapted and targeted methods. Originality/value: This article presents an original parallel application of almost all conventional logistics methods, for a global and efficient optimization.

Detection, Evaluation and Mitigation of Resource Affinity and Communication Contention Problems in a Task-Based Runtime over Heterogeneous Clusters

The complexity of high performance computing (HPC) platforms The Task-Based presents challenges in parallel application development. paradigm is a candidate to reduce some of the programmer's burden. However, because of the platforms' complexity, resource affinity and communication contention might cause performance problems. This work presents a case study of these problems employing the Chameleon dense algebra linear solver LU factorization using the Task-Based runtime StarPU over 21 heterogeneous nodes. We present possible configurations to mitigate performance degradation and conduct an extensive analysis of their interaction. The results show a performance improvement of 16% without changing the application source code.

Herbicide Spray Deposition in Wheat Stubble as Affected by Nozzle Type and Application Direction

Tall wheat (Triticum aestivum L.) stubble can enhance soil water conservation during the fallow-period by trapping snow and decreasing evaporation. However, standing wheat stubble can intercept herbicide spray droplets before they reach their intended targets. This experiment aimed to evaluate the effects of three wheat stubble heights (>70 cm, 35 cm, and no-stubble), four nozzle types (XR, TTJ, AIXR, and TTI), and three application directions (angular (45°), perpendicular (90°), and parallel (0°) to the wheat row) on a spray deposition of glyphosate and a dicamba tank mixture. The ranking of droplet size from smallest to largest based on volume median diameter (VMD) was XR, TTJ, AIXR, and TTI. Wheat stubble greater than 70 cm decreased spray deposition 37%, while 35 cm stubble caused a 23% decrease. Sprayer application directions and nozzle type had significant interaction on spray deposition. Perpendicular application direction decreased spray deposition relative to the angular application direction for TTJ and TTI. Parallel application direction had lower spray deposition than angular application direction for TTJ and XR. Similarly, relatively-high-spray deposition (~75%) was provided by angular application direction regardless of the nozzle type. Applicators should consider traveling in an angular direction to the wheat rows for improved droplet deposition across spray nozzle types.

Ultraviolet-B acclimation is supported by functionally heterogeneous phenolic peroxidases

Tobacco plants were grown in plant chambers for four weeks, then exposed to one of the following treatments for 4 days: (1) daily supplementary UV-B radiation corresponding to 6.9 kJ m−2 d−1 biologically effective dose (UV-B), (2) daily irrigation with 0.1 mM hydrogen peroxide, or (3) a parallel application of the two treatments (UV-B + H2O2). Neither the H2O2 nor the UV-B treatments were found to be damaging to leaf photosynthesis. Both single factor treatments increased leaf H2O2 contents but had distinct effects on various H2O2 neutralising mechanisms. Non-enzymatic H2O2 antioxidant capacities were increased by direct H2O2 treatment only, but not by UV-B. In contrast, enzymatic H2O2 neutralisation was mostly increased by UV-B, the responses showing an interesting diversity. When class-III peroxidase (POD) activity was assayed using an artificial substrate (ABTS, 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid)), both treatments appeared to have a positive effect. However, only UV-B-treated leaves showed higher POD activities when phenolic compounds naturally occurring in tobacco leaves (chlorogenic acid or quercetin) were used as substrates. These results demonstrate a substrate-dependent, functional heterogeneity in POD and further suggest that the selective activation of specific isoforms in UV-B acclimated leaves is not triggered by excess H2O2 in these leaves.