Explore the vast range of titles available.

Electronic journalism is considered a new media medium that has emerged at the level of the Arab national and even local media arena, and this new media would have emerged only as an inevitable result of, on the other hand, the significant advancements in the fields of information and communication technologies and Internet traffic. In Algeria, e-journalism has taken on a new and unique technical form., which contributed to changing professional and media practice and highlighted several journalistic ethical challenges.

Over the last years, we observed a significant increase in the number of published studies that focus on the synthesis and characterization of deep eutectic solvents (DESs). These materials are of particular interest mainly due to their physical and chemical stability, low vapor pressure, ease of synthesis, and the possibility of tailoring their properties through dilution or change of the ratio of parent substances (PS). DESs, considered as one of the greenest families of solvents, are used in many fields, such as organic synthesis, (bio)catalysis, electrochemistry, and (bio)medicine. DESs applications have already been reported in various review articles. However, these reports mainly described these components’ basics and general properties without focusing on the particular, PS-wise, group of DESs. Many DESs investigated for potential (bio)medical applications comprise organic acids. However, due to the different aims of the reported studies, many of these substances have not yet been investigated thoroughly, which makes it challenging for the field to move forward. Herein, we propose distinguishing DESs comprising organic acids (OA-DESs) as a specific group derived from natural deep eutectic solvents (NADESs). This review aims to highlight and compare the applications of OA-DESs as antimicrobial agents and drug delivery enhancers—two essential fields in (bio)medical studies where DESs have already been implemented and proven their potential. From the survey of the literature data, it is evident that OA-DESs represent an excellent type of DESs for specific biomedical applications, owing to their negligible cytotoxicity, fulfilling the rules of green chemistry and being generally effective as drug delivery enhancers and antimicrobial agents. The main focus is on the most intriguing examples and (where possible) application-based comparison of particular groups of OA-DESs. This should highlight the importance of OA-DESs and give valuable clues on the direction the field can take.

The blades in a gas turbine engine are exposed to extreme temperature levels that exceed the melting temperature of the material. Therefore, efficient cooling is a requirement for high performance of the gas turbine engine. The present study investigates film cooling by means of 3D numerical simulations using a commercial code: Fluent. Three numerical models, namely k-ε, RSM and SST turbulence models; are applied and then prediction results are compared to experimental measurements conducted by PIV technique. The experimental model realized in the ENSEMA laboratory uses a flat plate with several rows of staggered holes. The performance of the injected flow into the mainstream is analyzed. The comparison shows that the RANS closure models improve the over-predictions of center-line film cooling velocities that is caused by the limitations of the RANS method due to its isotropy eddy diffusivity.

Nanotechnology has rapidly evolved into a cross-cutting platform that supports sustainable agriculture, environmental protection, and human wellbeing. Recent developments show that smart and biocompatible nanomaterials are increasingly integrated into practical systems beyond laboratory settings. In agriculture, nano-enabled fertilizers, nanosensors, and green-synthesized antimicrobial nanocomposites improve nutrient use efficiency, facilitate early pathogen detection, and reduce chemical pesticide dependence, thereby strengthening productivity on marginal soils. Environmental applications demnstrate comparable progress through two-dimensional nanomaterials, nanocomposites synthesized using deep eutectic solvents (DES-mediated nanocomposites), diamond and graphene-derived sensing platforms, and photocatalytic systems for wastewater remediation, pollutant monitoring, and upcycling of plastic and CO 2 into valuable products. Advances in nanomedicine—including transdermal drug delivery patches, near-infrared responsive hydrogels, nanobody-targeted imaging agents, and carbon quantum dots for protein aggregation control—further contribute to the sustainability agenda by improving human health outcomes. The convergence of these technological directions reinforces the \"One Health\" perspective, where ecosystem quality, food security, and population health are interconnected. Progress in the field will depend on scalable green synthesis routes, long-term toxicity and environmental fate assessments, and the establishment of clear regulatory frameworks. This mini-review summarizes key advances from 2024-2025 and highlights opportunities for nanotechnology to support resilient agriculture, cleaner environments, and healthier societies.

Diabetes poses major economic, social, and public health challenges in all countries worldwide. Besides cardiovascular disease and microangiopathy, diabetes is a leading cause of foot ulcers and lower limb amputations. With the continued rise of diabetes prevalence, it is expected that the future burden of diabetes complications, early mortality, and disabilities will increase. The diabetes epidemic is partly caused by the current lack of clinical imaging diagnostic tools, the timely monitoring of insulin secretion and insulin-expressing cell mass (beta (β)-cells), and the lack of patients’ adherence to treatment, because some drugs are not tolerated or invasively administrated. In addition to this, there is a lack of efficient topical treatment capable of stopping the progression of disabilities, in particular for treating foot ulcers. In this context, polymer-based nanostructures garnered significant interest due to their tunable physicochemical characteristics, rich diversity, and biocompatibility. This review article emphasizes the last advances and discusses the prospects in the use of polymeric materials as nanocarriers for β-cell imaging and non-invasive drug delivery of insulin and antidiabetic drugs in the management of blood glucose and foot ulcers.

This study investigates the fracture toughness of 304L stainless steel, focusing on the impact of notch lengths and applying normalized essential work of fracture (EWF) and true thickness strain (TTS) as indicators of the material toughness. Tensile tests on standardized dog-bone specimens and single-edge notched (SEN) specimens were conducted combining 2D digital image correlation (DIC) technique and numerical post-processing using the open-source Ncorr program. These tests established baseline mechanical properties, key factors such as EWF. True thickness strain (TTS) were measured using high-definition imaging and an imaging analysis software, while stress triaxiality was calculated using DIC-based strain ratios. The comparison of failure and fracture strain values between specimens revealed a reduction in ductility caused by high stress concentration which accelerates fracture. Despite this loss in ductility, EWF and TTS measurements showed the material's ability to absorb energy through plastic deformation, even with a propagating crack. The stress triaxiality values derived from DIC measurements showed a strong correlation with theoretical predictions, accurately capturing the evolution of stress states during deformation. Notably, the average stress triaxiality increased with notch size in SEN specimens, highlighting its critical role in governing void nucleation, growth and final fracture behavior. This work also confirmed the reliability of EWF and TTS as metrics for reviewing fracture toughness in ductile materials.

Improvement of insulin secretion by pancreatic β-cells and preservation of their mass are the current challenges that future antidiabetic drugs should meet for achieving efficient and long-term glycemic control in patients with type 2 diabetes (T2D). The successful development of glucagon-like peptide 1 (GLP-1) analogues, derived from the saliva of a lizard from the Helodermatidae family, has provided the proof of concept that antidiabetic drugs directly targeting pancreatic β-cells can emerge from venomous animals. The literature reporting on the antidiabetic effects of medicinal plants suggests that they contain some promising active substances such as polyphenols and alkaloids, which could be active as insulin secretagogues and β-cell protectors. In this review, we discuss the potential of several polyphenols, alkaloids and venom peptides from snake, frogs, scorpions and cone snails. These molecules could contribute to the development of new efficient antidiabetic medicines targeting β-cells, which would tackle the progression of the disease.

Among the existing applications of wireless body sensor networks (WBSNs), a wearable health monitoring system (WHMS) is the most important. In a typical WHMS, miniature wireless biosensors, attached to or implanted in the human body, collect bio-signals such as the electrocardiogram (ECG), blood pressure or electromyogram (EMG) to provide real time and continuous health monitoring. In this paper, we present a compressed sensing (CS)-based approach to compress and recover the sensed bio-signals from the wireless biosensors of a WBSN. The CS encoding process has a low computational complexity and is suitable for use in power-constrained systems such as WHMS. We propose a simple deterministic measurement matrix, which is easy to implement in hardware. We design a digital CS encoder implementing the proposed measurement matrix and use it to compress the bio-signals in EMG and ECG wireless biosensors. The simulations and experimental results have shown that the EMG and ECG signals are compressed and recovered without perceptible loss if the compression ratios are, respectively, less than or equal to 75 and 87.5%. The obtained results have also confirmed the simplicity of the proposed measurement matrix since the CS encoder does not affect the memory usage or the processing time of the microcontrollers embedded in the wireless biosensors. Additionally, the CS encoder decreases by up to 75 and 87.5% the energy consumption of the transceivers for the EMG and ECG wireless biosensors.

Manipulating micro and nano-biological particles like extracellular vehicles (EVs), without extracting them from their biological media, presents a big challenge for diagnosis purposes. Here we present the design and fabrication of a sorting device based on the combination of microfluidic and electroacoustic modules that is capable of aligning and sorting submicron biological particles according to their size, compressibility or mass density, all in a tunable way. The device relies on a lithium niobate (LN) substrate to generate acoustic waves assembled with a micromachined glass layer for microfluidic circuits. The interference between the two surface acoustic waves (SAWs) generated by interdigitated transducers (IDTs) create a distribution of an acoustic radiation force (ARF). This force affects differently particles depending on their physical proprieties. The device is powered by an electronic circuit with a phase shifter to move the node of the standing surface acoustic wave (SSAW) along the channel width. When the device is powered at resonance frequency of the IDTs, experiment shows submicron particles alignment along the channel. By shifting the electrical signal between the two IDTs we can translate the pressure node at any targeted position in the channel width. The particles are then driven to one selected outlet.

This academic paper aims to highlight the contribution that manifested in the efforts of Sufi orders to attract followers and align them with the ideologies of their founding masters, resulting in social practices with distinct political dimensions. Hagiographical literature (manāqib) and biographical accounts serve as vital sources for understanding the symbolic status of saints (awliyāʾ) and Sufi figures, highlighting their reformist influence and elevated position within the social hierarchy. The spiritual and symbolic expansion of Sufi orders contributed to reshaping popular religiosity, which transitioned from asceticism (zuhd) to institutionalized Sufism (taṣawwuf).