THE ESSENCE OF A FIXED-TERM EMPLOYMENT CONTRACT

2021 ◽  
Vol specjalny (XXI) ◽  
pp. 523-534
Author(s):  
Kinga Moras-Olaś
Keyword(s):  
Structural Elements ◽  
Employment Contracts ◽  
Employment Contract

The existing regulation of the Labor Code includes three types of employment contracts. It means that each of them may be concluded only in certain circumstances. The differences between them result from their different functions and purposes. The shape of the regulation of each contract should reflect its nature. The essence of a fixed-term employment contract is shaped by three structural elements: the temporary nature of the work to be performed, unconditional determination of the end of the employment contract, and stability of the contract. The purpose of this article is to characterize each of these elements and assess the compliance of the existing LC regulation with the nature of the contract in question.

scholarly journals SISTEM PENDUKUNG KEPUTUSAN PERPANJANGAN KONTRAK KERJA KARYAWAN PADA PT. TELKOM AKSES REG IV MENGGUNAKAN METODE ORESTE

2021 ◽  
Vol 8 (2) ◽  
pp. 970-979
Author(s):  
Saifur Rohman Cholil
Keyword(s):  
Assessment Process ◽  
Decision Making Process ◽  
Employment Contracts ◽  
Employment Contract ◽  
Contract Employees ◽  
A Value ◽  
The Status ◽  
One Year ◽  
Work Contracts

PT Telkom Akses has fairly many employees, some of these employees still have status as contract employees, The employee's employment contract lasts for one year and then at the end of each period of the employee's contract there will be a performance evaluation which includes several criteria to determine whether the employee gets a contract extension or not. The number of employees of PT Telkom Akses with the status of contract employees is not small and the assessment process that is still manual becomes an obstacle in the assessment process because it is difficult and requires a lot of time. In determining employee work contracts, subjectivity often arises from managers or coworkers who can influence the decision making process regarding employee employment contracts. The criteria for evaluating employee work contracts include appraisal, absenteeism, BPJS employment, and employee position. The results of this study obtained a value of 0.90 on the validation of the Spearman Correlation Coefficient calculation. So the system is feasible to be used in the determination of employee employment contract at PT. Telkom Access REG IV.

scholarly journals Structural design principles for specific ultra-high affinity interactions between colicins/pyocins and immunity proteins

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Avital Shushan ◽  
Mickey Kosloff
Keyword(s):  
Protein Interactions ◽  
Structural Elements ◽  
Protein Protein Interactions ◽  
Immunity Protein ◽  
Rational Engineering ◽  
High Affinity ◽  
Comparative Structure ◽  
Polar Interactions ◽  
Exquisite Specificity

AbstractThe interactions of the antibiotic proteins colicins/pyocins with immunity proteins is a seminal model system for studying protein–protein interactions and specificity. Yet, a precise and quantitative determination of which structural elements and residues determine their binding affinity and specificity is still lacking. Here, we used comparative structure-based energy calculations to map residues that substantially contribute to interactions across native and engineered complexes of colicins/pyocins and immunity proteins. We show that the immunity protein α1–α2 motif is a unique structurally-dissimilar element that restricts interaction specificity towards all colicins/pyocins, in both engineered and native complexes. This motif combines with a diverse and extensive array of electrostatic/polar interactions that enable the exquisite specificity that characterizes these interactions while achieving ultra-high affinity. Surprisingly, the divergence of these contributing colicin residues is reciprocal to residue conservation in immunity proteins. The structurally-dissimilar immunity protein α1–α2 motif is recognized by divergent colicins similarly, while the conserved immunity protein α3 helix interacts with diverse colicin residues. Electrostatics thus plays a key role in setting interaction specificity across all colicins and immunity proteins. Our analysis and resulting residue-level maps illuminate the molecular basis for these protein–protein interactions, with implications for drug development and rational engineering of these interfaces.

Study of the residual imperfections using methods of probability theory

2021 ◽  
Vol 87 (9) ◽  
pp. 44-49
Author(s):  
D. A. Kuzmin
Keyword(s):  
Probability Theory ◽  
Generalized Equation ◽  
Structural Elements ◽  
Non Destructive Testing ◽  
Operational Control ◽  
Destructive Testing ◽  
Control Procedures ◽  
Non Destructive ◽  
A Current

Discontinuities in the products that occur during manufacture, mounting or upon operation can be missed during non-destructive testing which do not provide their complete detectability at a current level of the technology. Therefore, it is necessary to take into account that certain structural elements may have discontinuities of significant dimensions. We present the results of using the methods of probability theory in studying the residual imperfections that remains in the structure after non-destructive control and repair of the previously identified defects. We used the results of operational control of units carried out by ultrasonic and radiographic methods. We present a method for determining a multifactorial coefficient that takes into account the detectability of defects, the number of control procedures and the errors in the instrumentation and methodological support, as well as a generalized equation for the probability distribution of detecting discontinuities. The developed approach provides assessing of the level of damage to the studied objects, their classification proceeding from the quantitative data and determination of the values of postulated discontinuities for deterministic calculations. The results obtained can be used to improve the methods of monitoring NPP facilities.

scholarly journals Structural vehicle impact loading

2013 ◽  
Vol 11 (3) ◽  
pp. 285-292
Author(s):  
Dragoslav Stojic ◽  
Stefan Conic
Keyword(s):  
Impact Analysis ◽  
Impact Loads ◽  
Structural Elements ◽  
Structural Element ◽  
Static Loads ◽  
Equivalent Static Loads ◽  
Vehicle Impact ◽  
Dynamic Forces ◽  
Force Intensity

In contemporary design, vehicle impact into the structures is paid great attention since they can be dominant, depending on the type of structure. The key issue in the vehicle impact analysis is the proper determination of intensity and way of action of dynamic forces on the structural element and its behavior after the imparted load. The Eurocodes, in the annexes provide recommendations for determination of force intensity depending on mass and velocity of the colliding vehicle. Equivalent static loads causing approximate effects on the structural elements are used as quite approximate and efficient methods. The paper comprises the analysis of deformation of columns having the same characteristics, exposed to impact loads via the equivalent static loads, depending on the stress state in columns, and a comparative analysis has been done.

scholarly journals Features of Legal Regulation of Employment Contracts with Seasonal and Temporary Employees

2020 ◽  
Vol 89 (2) ◽  
pp. 69-76
Author(s):  
A. Ya. Radzividlo
Keyword(s):  
Working Conditions ◽  
Labor Relations ◽  
Legal Regulation ◽  
Climatic Conditions ◽  
Temporary Employees ◽  
Employment Contracts ◽  
Employment Contract

The article is focused on studying peculiarities of employment contracts with seasonal and temporary employees in Ukraine. The employment contract as the basis of the origin of labor relations with seasonal and temporary employees has been researched. The norms of the decrees of the Presidium of the Supreme Rada of the USSR “On working conditions of temporary employees and officials” dated from September 24, 1974 No. 311-09 and “On working conditions of employees and officials engaged in seasonal work” dated from September 24, 1974 No. 310-09 have been analyzed . It has been noted that peculiarities of legal regulation of employment contracts with temporary and seasonal employees relate primarily to their conclusion and termination, as well as content. It has been proved that some provisions of regulatory acts that regulate the employment of temporary and seasonal employees are outdated; others require some revision. It has been offered to develop modern regulatory acts on the application of temporary and seasonal work. These acts must first of all establish the concept: “seasonal employees – individuals hired under an employment contract for work that as a result of natural and climatic conditions performed not through a year, but during a certain period (season), not exceeding six months”; “temporary employees – individuals hired under an employment contract for a period up to two months, and for the replacement of temporarily absent employees, who retain their place of work (position) – up to four months”. It has been substantiated that the List of Seasonal Works and Seasonal Industries needs to be updated, based on the realities of the present day.

scholarly journals Comparação entre a eficiência estrutural de perfis soldados de aço e perfis de aço formados a frio

2016 ◽  
Vol 12 (3) ◽  
Author(s):  
Uiatan Aguiar Nogueira ◽  
Matilde Batista Melo ◽  
Daniel De Lima Araujo
Keyword(s):  
Bending Strength ◽  
Steel Beams ◽  
Steel Beam ◽  
Structural Elements ◽  
Structural System ◽  
Welded Steel ◽  
Bending Tests ◽  
Structural Efficiency ◽  
Cold Formed Steel

RESUMO: A Análise de elementos estruturais, realizadas durante as etapas de projeto de uma estrutura, é parte fundamental para garantia de bom desempenho e estabilidade do sistema estrutural. Na execução de algumas estruturas, como as coberturas em edificações, é usual o emprego de perfis leves de aço formados a frio devido ao seu baixo peso. Esta pesquisa tem por objetivo avaliar a eficiência estrutural desses perfis quando comparados, por exemplo, aos perfis soldados compactos. Para tanto, foram realizados ensaios de flexão em quatro vigas biapoiadas submetidas a duas forças concentradas, de forma a se obter flexão pura no meio do vão das vigas. Estas foram instrumentadas para a determinação da sua rigidez e da sua resistência à flexão. A principal contribuição deste trabalho é demonstrar a eficiência estrutural de perfis formados a frio em seção caixa submetidos à flexão em comparação com perfis de seção tipo “H” soldados. ABSTRACT: The analysis of structural elements, in a structure’s design, is an essential step to ensure good performance and stability of the structural system. In any types of structures, such as roofing in buildings, it’s usual using cold-formed steel beams due to their small weight. This research seeks to evaluate the structural efficiency of cold-formed steel beams when compared, for example, to compact welded steel beams. Thus, bending tests were performed in four simply supported beams submitted to two concentrated loads, in order to obtain pure flexure at the mid-span of the beams. These beams were instrumented for the determination of their rigidity and bending strength. The results showed that the cold-formed steel beam, box-shaped, presented structural efficiency similar to the welded steel beam “H” shaped.

Photoelast Method and Possible Applications of Mathematical Statistics in Prediction of Stress State of Structural Elements

2014 ◽  
Vol 611 ◽  
pp. 405-411 ◽  
Author(s):  
Oskar Ostertag ◽  
Eva Ostertagová ◽  
Peter Frankovský
Keyword(s):  
Stress State ◽  
Stress Concentration ◽  
Stress Field ◽  
Statistical Methods ◽  
Mathematical Statistics ◽  
Structural Elements ◽  
State Development ◽  
Stress States ◽  
Structural Parts

The presented article is dedicated to stress state development while assessing the concentration of stresses in samples with continuously changing notches. These samples represent connecting elements of structural parts. The stress states of selected samples were determined experimentally by means of reflection photoelasticity. This method is suitable mainly for determination of stress state in the whole area in question, predominantly though for the analysis of stress concentration and its gradient in the notched area. Within the method of reflection photoelasticity, a layer was used to analyse the stress field. When loaded, this layer exhibits the ability of temporal birefringence. One of the statistical methods was selected in order to predict the stress state of other samples with bigger notches.

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