The University of Zabol (Persian: دانشگاه زابل, Danushgah-e Zabel), also known as Zabol University and UOZ, is a university based in Zabol, Iran, established in 1999.
In this paper a novel noninvasive procedure for blood pressure estimation according to the fusion of features extracted from photoplethysmography (PPG) and electrocardiography (ECG) signals is presented. The main goal of the suggested approach is to improve cardiovascular monitoring accuracy by exploiting the complementary information provided by these two physiological signals. Inthe proposed method PPG and ECG signals are first preprocessed, and a set of 21 blood pressure related physiological features is extracted. These features are then used as predictor variables (inputs) for a set of multivariate linear regression models to estimate blood pressure values. To assess the performance of the presented method, a dataset consisting of multiple signal recordings collected from different patients is utilized. Data preprocessing is carried out through principal component analysis (PCA) while feature dimensionality reduction and selection of the most informative features are achieved through stepwise linear regression. Finally three features exhibiting the highest correlation with blood pressure are identified and selected as the core features of the suggested approach. The effectiveness of the suggested approach is compared with existing methods, and the obtained results demonstrate that the suggested model achieves acceptable accuracy and satisfactory efficiency in blood pressure estimation.
Aquaculture is developing in many countries to meet the rising protein demand associated with a rapidly growing human population. However, intensification of production brings with it challenges such as deteriorating water quality and increasing disease outbreaks. These conditions lead to an increased risk of infectious diseases and led to higher mortality rates, which causes economic losses. Lactococcosis, particularly that caused by the Gram-positive bacterium Lactococcus garvieae, is one of the most common of these problems and can cause significant losses in various fish species. The intensive use of antibiotics for control purposes creates additional risks in terms of antimicrobial resistance, environmental pollution, and food safety. Therefore, natural feed additives have gained importance in recent years. Certain additives that support immune responses and increase disease resistance in fish have become prominent. Among these, phytobiotics, probiotics, prebiotics, and synbiotics are the most well-known and effective. Their widespread availability, lower cost, and environmental safety make these additives considered an alternative approach to aquaculture. Studies show that these additives strengthen both innate and adaptive immune responses, reduce infection severity, and reduce mortality associated with L. garvieae infections. However, there are still gaps in knowledge regarding how these substances regulate mechanisms such as the immune system, inflammatory processes, antioxidant defenses, and interactions with pathogens. This review aims to clarify these mechanisms by bringing together scientific data obtained in recent years. It also discusses how the information obtained can contribute to the development of safer feed additive strategies and the development of new vaccine approaches. This aims to support the establishment of a more sustainable production structure in the aquaculture sector.
This study examines the wood anatomy of archaeological artefacts recovered from the Kohan Dezh fortress on Kuh-i Khwaja, a key site in the Sistan region of Iran, dated to the late 1st millennium bce (ca. 3rd century bce, Parthian period). Eleven objects, including combs, textile making, structural elements and small vessels, were analysed using macroscopic study, light microscopy and wood maceration techniques, and compared against authoritative anatomical literature, the InsideWood database and the modern reference collection of the University of Tehran in accordance with IAWA standards. Identifications include Buxus hyrcana (Hyrcanian boxwood), Tamarix sp. (tamarisk), Prosopis sp. (mesquite), Morus sp. (mulberry) and Populus sp. (poplar). Local taxa such as Tamarix and Populus were mainly used for utilitarian objects, while the presence of non-native woods, notably boxwood and mulberry, suggests the existence of ancient trade networks. Microscopic evidence of soft rot decay was observed, particularly in Tamarix and Morus specimens, despite the very dry burial conditions. Chemical deposits detected inside the wood vessels of combs probably reflect ancient surface treatments for aesthetic or ritual purposes. These findings provide new insights into the use of wood in ancient Persia, strategies for selecting wood and preservation conditions in an arid environment.
Laminated veneer lumber exhibits limited tensile resistance in the tension zone under bending loads; therefore, reinforcing this region is essential. This study investigated the bending performance of Paulownia laminated veneer lumber (LVL) beams strengthened with glass fiber–reinforced polymer (GFRP) and carbon fiber–reinforced polymer (CFRP) sheets. The test specimens measured 32 cm × 2 cm × 1.4 cm in length, width, and thickness, respectively. The results showed that the highest densities, 0.64 and 0.65 g/cm3, were obtained for LVLs reinforced with six layers of GFRP and CFRP, respectively. Both solid Paulownia wood and Paulownia LVL (P-LVL) exhibited lower MOE and MOR values than LVLs reinforced with CFRP and GFRP. Although CFRP-reinforced LVLs showed slightly higher MOE and MOR than those reinforced with GFRP, the difference was not statistically significant at the 95
