DSpace University Ghardaia
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- Faculté des Sciences Economiques, Commerciales et des Sciences de Gestion
- Faculté de Droit et des Sciences Politiques
- Faculté des Lettres et des Langues
- Faculté des Sciences de la Nature et de la Vie et des Sciences de la Terre
- Faculté des sciences et technologies
Recent Submissions
التّضامن الاجتماعي والاقتصادي وأثـــــــره على الفقه الإسلامي من خلال صوره المعاصرة
(جامعة غرداية, 2026) بوعافية عيسى
تهدف هذه الدّراسة إلى التّطرّق لمفهوم التّضامن ببعديه الاجتماعي والاقتصادي وبيان العلاقة التّكامليّة بين الجانبين، وإبرازه كنظام متكامل وشامل لكلّ جوانب التّشريع الإسلامي وذلك من خلال التّأصيل الشّرعي وذكر الأسس والمبادئ الّتي يرتكز عليها، وكذا بيان أهمّ الوسائل الّتي اعتمدها في تحقيق النّتائج المرجوّة على مستوى المجتمع، وتتبّع أهمّ هذه الوسائل والآليّات قديما وحديثا، مع ذكر أثرها وخاصّة الصّور المعاصرة منها سواء- القديمة المتجدّدة المتكيّفة مع ظروف العصر وتعقيداته أو الجديدة- على الفقه الإسلامي، وأهميّة الاجتهاد في ضوء الشّريعة الإسلاميّة في هذه الصّور جميعها، وذكر أهمّ التّحدّيات الّتي تواجه الفقه الإسلامي في هذا المجال، واقتراح الحلول الممكنة من أجل الوصول إلى إبراز أهمّيّة وجود نظريّة متكاملة حول التّضامن الاجتماعي والاقتصادي نظرا للحاجة الملحّة إليه، وتوجيه الأنظار إلى ضرورة اهتمام الدّراسات المعاصرة بهذا الموضوع والتّركيز عليه قصد تبنّيه في المجتمعات والدّول الإسلاميّة والّتي هي في أمسّ الحاجة إليه في وقتنا الرّاهن.
This study aims to address the concept of solidarity in its social and economic dimensions, highlighting the complementary relationship between the two and presenting it as a comprehensive and integrated system encompassing all aspects of Islamic legislation. The research undertakes a jurisprudential foundation by identifying the principles and bases upon which solidarity is established, as well as examining the primary mechanisms employed to achieve the intended outcomes at the societal level. It traces these mechanisms and tools, both historically and in contemporary times, while emphasizing their impact—particularly the modern manifestations, whether renewed and adapted to current circumstances or newly developed—on Islamic jurisprudence. The study further underscores the importance of ijtihad in light of Islamic law across all such forms, identifies the main challenges facing Islamic jurisprudence in this domain, and proposes possible solutions to demonstrate the necessity of formulating an integrated theory of social and economic solidarity. This is especially crucial given the urgent need for such a framework and the imperative to direct contemporary research towards adopting and applying it within Muslim societies and states in the present time.
أثر العبء الجبائي على المؤسسات الصغيرة والمتوسطة دراسة حالة مؤسسة SARL SONERAS
(2026-06-01) ميموني، كوثر; مطياز، وهيبة
هدفت هذه الدراسة إلى إبراز تأثير العبء الجبائي على أداء المؤسسات الصغيرة والمتوسطة.
إعتمدت الدراسة على المنهج الوصفي، حيث استخدمت الوثائق كأداة جمع البيانات، وقد تم إجراء الدراسة في مؤسسةSARL SONERAS .
خلصت هذه الدراسة إلى جملة من النتائج وهي:
مستوى العبء الجبائي التي تتحمله مؤسسةSARL SONERAS مرتفع.
تتمتع مؤسسةSARL SONERAS بتنظيم إداري مقبول يعتمد على توزيع المهام والتنسيق بين الأقسام مع أسلوب تسيير يجمع بين المركزية والتشاور.
يؤثر العبء الجبائي سلباً على أداء المؤسسات الصغيرة والمتوسطة وربحيتها وقدرتها التوسعية والإستثمارية.
This study aimed to highlight the impact of the tax burden on the performance of small and medium-sized enterprises (SMEs). The study adopted the descriptive approach, using documents as a data collection tool, and was conducted at SARL SONERAS.
The study reached several findings, including:
The level of tax burden borne by SARL SONERAS is high.
SARL SONERAS has an acceptable administrative organization based on task distribution and coordination between departments, with a management style that combines centralization and consultation.
The tax burden negatively affects the performance, profitability, expansion, and investment capacity of small and medium-sized enterprises.
Renovation and improvement of direct and indirect clay- based solar dryers for drying medicinal and aromatic plants
(university of ghardaia, 2026) BOUAMER ahmed yassine; KIOUAS ahmed mouad; TOUITI ahmed zineddine
This thesis investigates the renovation and performance improvement of two clay-based solar
dryers a direct configuration and an indirect configuration for drying medicinal and aromatic plants
(MAPs) in the arid climatic conditions of Ghardaia, Algeria. Although Clay-based dryers are low-
cost, locally manufactured systems with favorable thermal mass properties, but existing designs
suffer from several shortcomings including degraded polycarbonate covers, uneven heat
distribution, dust infiltration, and difficult product loading.
Two experimental campaigns were conducted at the URAER research unit: a pre-renovation
campaign in February 2026 and a post-renovation campaign in May 2026. Five targeted upgrades
were implemented: replacement of degraded polycarbonate panels with 5 mm glass panes,
installed of black floor tiles to improve heat absorption and ease of loading, application of air
filtration screens to prevent dust ingress, installation of a one-piece matte black aluminum solar
collector panel, and structural repair of the clay walls using clay & limestone paint.
The results show that post-renovation, the indirect dryer achieved peak internal temperatures up
to 11 °C higher than before renovation, with improved temperature uniformity between the
sensors. Both dryers exhibited better alignment between their internal temperature profiles and
solar irradiation patterns, confirming an enhanced thermal performance. The study also evaluated
the drying kinetics of Asphodelus tenuifolius and mint (Menthe sp.) as test plants, validating the
superior moisture-extraction capability of the renovated systems compared to open sun drying.
The findings confirm that simple, cost-effective, locally available material upgrades can transform
underperforming clay dryers into efficient, sustainable tools for preserving medicinal and aromatic
plants while reducing post-harvest losses for small-scale farmers in arid regions.
Study of the biosorption of reactive dyes on cellulosic waste from the textile industry.
(university of ghardaia, 2026) Ouali Khadidja; Boudjema Zineb
In this study, waste denim (JW) was investigated as an adsorbent for the removal of
methylene blue from aqueous solutions. The denim waste was chemically modified using
sodium thiosulfate (Na2S2O3), resulting in a modified adsorbent (JW-Na2S2O3) with
substantially enhanced adsorption performance compared with untreated waste denim (JW).
The JW-Na2S2O3 material achieved a maximum removal rate of approximately 99.5% at an
initial concentration of 5 mg/L, compared to 54% for the JW material. This improvement can
be attributed to changes in the surface functional and chemical properties of the adsorbent, as
evidenced by Fourier-transform infrared spectroscopy (FTIR), Boehm titration, and
determination of the point of zero charge (pHpzc). Statistical analysis using analysis of variance
(ANOVA) in conjunction with response surface methodology based on a Box–Behnken design
(BBD) demonstrated that pH, adsorbent dosage, and initial dye concentration, as well as the
interaction between pH and adsorbent dosage, had statistically significant effects on the
adsorption process (p < 0.05). Equilibrium analysis indicated that the Freundlich isotherm
provided the best fit to the experimental adsorption data compared with the other models
investigated. Furthermore, the adsorption kinetics were better described by the pseudo-first-
order kinetic model. Finally, the thermodynamic study showed that the adsorption process of
the raw material (JW)is an endothermic process, while it turned into an exothermic process after
modification for the material (JW-Na2S2O3).
تصميم وتطوير نظام ري متكامل يعتمد على تقنيات انترنت الاشياء لتحسين جودة الترية
(university of ghardaia, 2026) جبريط محمد رياض; عجيلة كمال عماد الدين; شنيني عبد المؤمن احمد مختار
تصميم وتطوير نظام ري متكامل يعتمد على تقنيات انترنت الاشياء لتحسين جودة الترية