125 research outputs found
Preference modelling approaches based on cumulative functions using simulation with applications
No full textIn decision making problems under uncertainty, Mean Variance Model (MVM) consistent
with Expected Utility Theory (EUT) plays an important role in ranking preferences for
various alternative options. Despite its wide use, this model is appropriate only when
random variables representing the alternative options are normally distributed and the utility
function to be maximized is quadratic; both are undesirable properties to be satisfied with
actual applications.
In this research, a novel methodology has been adopted in developing generalized models
that can reduce the deficiency of the existing models to solve large-scale decision problems,
along with applications to real-world disputes. More specifically, for eliciting preferences for
pairs of alternative options, two approaches are developed: one is based on Mean Variance
Model (MVM), which is consistent with Expected Utility Theory (EUT), and the second is
based on Analytic Hierarchy Processes (AHP). The main innovation in the first approach is
in reformulating MVM to be based on cumulative functions using simulation. Two models
under this approach are introduced: the first deals with ranking preferences for pairs of lotteries/options with non-negative outcomes only while the second, which is for risk
modelling, is a risk-preference model that concerns normalized lotteries representing risk
factors each is obtained from a multiplication decomposition of a lottery into its mean
multiplied by a risk factor. Both approximation models, which are preference-based using
the determined values for expected utility, have the potential to accommodate various
distribution functions with different utility functions and capable of handling decision
problems especially those encountered in financial economics. The study then reformulates
the second approach, AHP; a new algorithm, using simulation, introduces an approximation
method that restricts the level of inherent uncertainty to a certain limit. The research further focuses on proposing an integrated preference-based AHP model
introducing a novel approximation stepwise algorithm that combines the two modified
approaches, namely MVM and AHP; it multiplies the determined value for expected utility,
which results from implementing the modified MVM, by the one obtained from processing
AHP to obtain an aggregated weight indicator. The new integrated weight scale represents
an accurate and flexible tool that can be employed efficiently to solve decision making
problems for possible scenarios that concern financial economics Finally, to illustrate how the integrated model can be used as a practical methodology to
solve real life selection problems, this research explores the first empirical case study on
Tender Selection Process (TSP) in Kurdistan Region (KR) of Iraq; it is considered as an
inductive and a comprehensive investigation on TSP, which has received minimum
consideration in the region, and regarded as a significant contribution to this research. The
implementation of the proposed model to this case study shows that, for the evaluation of
construction tenders, the integrated approach is an appropriate model, which can be easily
modified to assume specific conditions of the proposed project. Using simulation, generated
data allows creation of a feedback system that can be utilized for the evaluation of future
projects in addition to its capability to make data handling easier and the evaluation process
less complex and time consuming
Higher Education Reforms in Algeria between Quantitative Requirements and Quality Challenges - Diagnostic Study of the Course of Reforms in the Higher Education Sector in Algeria -
No full textThis study aims to provide a diagnostic study of the course of the development of reforms and modifications in the higher education system in Algeria, by addressing the most important pillars on which these reforms were based, especially with regard to the training structure defined by each track. The study also touched on the most important achievements made, especially in the field of development of student censuses and training institutions, the quality of training offered to students, and the imbalances and problems that resulted from the application of these reforms. To achieve these goals, the study used the descriptive approach, and relied on statistics and reports of the Ministry of Higher Education and National Research and national scientific journals to collect data. The study concluded that it is necessary to reconsider training engineering in general, and in structuring the pedagogical organization specially approve
Modern methods in evaluating the teaching performance of the university professor between the hoped and the reality of implementation in Algeria.
No full textThe importance of evaluating job performance is increased by increasing awareness of what it can offer for planning, organizing, training, and recruitment in any administrative organization or educational institution. Where it is considered one of the most important activities and processes related to human resources management, but it still does not receive enough attention. There is considerable controversy and doubt, especially the evaluation of academic performance of faculty members in general, and teaching performance in particular, we find it mostly personal and according to individual jurisprudence and is still far from objective orthodontic treatments to detect and address deficiencies, in addition to many complaints from students about poor teaching performance of some faculty members, some of whom have left their lectures, or performed in a formal manner that does not take into account what should be the effective teaching performance. Accordingly, this study examines the possibility of adopting and applying modern methods in evaluating the teaching performance of the university professor in Algeria
Spatial fragmentation and rise in poverty: the conflict context in Saida
No full textThis report provides an analytical summary of the conflict context in the Saida region of Lebanon, with a focus on spatial struggle and poverty growth. It is based on a socio-economic qualitative assessment and a conflict analysis primarily based on a politico-historical analysis by the author and the gathering of experiences and perspectives of key informants. The fieldwork was carried out between February 18 and March 31 2015. This qualitative research included about 20 one-to-one interviews with religious and intellectual figures, NGO representatives, members or former members of the local authorities and finally local residents, both Lebanese or refugees
The role of national employment programs in the personal and professional development of job seekers in Algeria. – Study of the State of graduates of higher education who are placed under graduates insertion contract ( CID )in the secondary education inst
No full textThe aim of this study was to diagnose the reality of the phenomenon of national employment programs in Algeria as one of the main axes of the national employment strategy .which qualifies it to be a vital and appropriate field that helps to understand the reality of these programs in all its dimensions. Especially the programs designated to the personal and professional development for graduates of the higher education.In this sense, this study attempted to answer the following main question:- What is the role of national employment programs in the personal and professional development of job seekers of graduates higher education?In order to answer this question, a number of hypotheses were formulated, analyzed and discussed. Descriptive methods were used. As for the place of study, it was determined in the secondary education institutions of wilaya of Mila. Data collection was distributed to all graduates of higher education placed in (CID) in secondary education institutions in the year of 2015.The most important findings were that the work in (CID) has contributed positively to their personal and professional development, which enabled them to settle and continue in this program
البعد الاستراتيجي لتنمية و ادارة الموارد البشرية في ظل تحديات العولمة
No full textThe strategic dimension of human resource development and management is more governed by none of the conditions of an autonomous institution or a particular community, but it has become a global dimension. He dictated the conditions of globalization to all societies, without exception, the need to re-examine his policies on labor force and the perception of these forces as principal factor of competitiveness that seek to make it a competitive advantage Sweeping the world markets. Therefore the objective of this study is to highlight the strategic dimension of human resources management functions under the challenges and the effects of intellectual, cultural, social, and economic and Organization of the globalization
An Experience of the Conservation of Historic Buildings’ Facades in Old Saida City
No full textThis article delves into the nuanced experience and challenges involved in conserving historic building facades within an old Saida city neighborhood marked by neglect and limited restoration efforts due to class dynamics and discrimination by heritage curators. Nevertheless, its buildings have been subjected to lack of maintenance and repair which led to processes of degradation with time and loss of some cultural heritage [6]. Focusing on a deprived area, the paper examines the challenges and opportunities encountered in conserving architectural heritage amidst socioeconomic constraints. Damage related to the collapse of building elements necessitates an investigation into the underlying causes to prevent such occurrences. This involves identifying a set of parameters to assess the hazards of façades and public exposure. Through a blend of community involvement in close coordination between the author who drives innovative conservation techniques, UNDP and the Municipality of Saida, the project sheds light on the potential for safeguarding the historical character to the damaged historic Musalkhiyyeh street arcades and façades, Kaniset el-amercani, Musallabiyyeh old market streets amongst with a specific square called “Furn el Saha” in old Saida historic city. The project falls under the UNDP project “Improving Living Conditions in Gatherings Host Communities”. The conservation project aimed to conserve those buildings, and promoted histories of places and people’s memories connected to the selected heritage sites. The project rehabilitated internally and externally for the three selected areas. It addressed both the physical deterioration and build the knowledge about the importance of the sites. By documenting this journey, valuable lessons emerge for policymakers, urban planners, and conservationists seeking to address heritage preservation in marginalized communities. Historic structures design and construction tell us much about the cultures and the history of a community that created them and about the traditions and events from which our society grew
The impact of the Coronavirus (Covid-19) on the actors and components of the educational system
No full textThe COVID-19 crisis has led several countries to close their schools, heavily disrupting the learning process of many pupils and students, as well as their families. During this period, distance-learning solutions were implemented to ensure pedagogical continuity. But, despite all these measures, school closures according to several studies could have negative effects on education systems around the world.This article aims to know the effects of the virus on education systems around the world, based on the content analysis of the results of studies and reports on the Covid-19 disease that have been carried out by researchers, international institutions and organizations such as (UNESCO, UNICEF, World Bank, OECD, and African Bank).The results showed that this virus has significant and varied negative effects on the actors and components of the education system
Genome- and transcriptome-assisted development of nuclear insertion/deletion markers for Calanus species (Copepoda: Calanoida) identification
No full textCopepods of the genus Calanus are key zooplankton species in temperate to arctic marine ecosystems. Despite their ecological importance, species identification remains challenging. Furthermore, the recent report of hybrids among Calanus species highlights the need for diagnostic nuclear markers to efficiently identify parental species and hybrids. Using next-generation sequencing analysis of both the genome and transcriptome from two sibling species, Calanus finmarchicus and Calanus glacialis, we developed a panel of 12 nuclear insertion/deletion markers. All the markers showed species-specific amplicon length. Furthermore, most of the markers were successfully amplified in other Calanus species, allowing the molecular identification of Calanus helgolandicus, Calanus hyperboreus and Calanus marshalla
Cold-adapted structural properties of trypsins from walleye pollock (Theragra chalcogramma) and Arctic cod (Boreogadus saida)
No full textComplementary DNA clones encoding trypsins were isolated from pyloric ceca of cold-adapted fish, walleye pollock (Theragra chalcogramma) (WP-T) and Arctic cod (Boreogadus saida) (AC-T). The isolated full-length cDNA clones of WP-T and AC-T were 852 bp and 860 bp, respectively, and both cDNAs were contained an open reading frame of 726 bp. WP-T and AC-T seemed to be synthesized as preproenzyme that contains a signal peptide, an activation peptide, and a mature trypsin. Although the amino acid sequence identities of WP-T and AC-T to that of bovine trypsin were 64% and 63%, respectively, they completely conserved the structural features for catalytic function of trypsin. On the other hand, WP-T and AC-T possessed the four Met residues (Met135, Met145, Met175 and Met242) in their molecules and the deletion of Tyr151 and substitution of Pro152 for Gly in their autolysis loops when aligned with the sequences of tropical-zone fish and bovine trypsins. In addition, the contents of charged amino acid residues at the N-terminal regions (positions 20-50) of WP-T and AC-T were extremely higher than those of other fish and bovine trypsins. Moreover, one amino acid (Asn72) and two amino acids (Asn72 and Val75) coordinating with Ca2+ in bovine trypsin were exchanged for another amino acids in WP-T (His) and AC-T (His and Glu), respectively, and the contents of negative charged amino acids at their Ca^[2+]-binding regions were lower than those of tropical-zone fish and bovine trypsins. Therefore, it was considered that these structural characteristics of WP-T and AC-T are closely related to their lower thermo stability
- …
