Complex systems in the real world have networks differ significantly from random graphs and have non-trivial structures. In fact, they have a community structure that needs to be recognized and recovered. The stochastic block models (SBMs) are popular models for community detection in networks, where nodes are divided into groups based on their connectivity patterns. Maximum likelihood estimation is a common method for estimating the parameters of SBMs. In this paper, a model selection for stochastic block models is presented based on the optimization of the log-likelihood function to find the best number of communities K detected by the regularized convex modularity maximization method. This work deals with many assumptions on K because

The purpose of this paper is to introduce a new type of spaces called nano topological spaces and investigate the relation between nano topological space and nano ideal semi preopen set. The objective of this study is to develop a nano topological model. We study this model from three aspects, which are lower, upper approximation and their properties. Basic properties and characterizations related to these sets are given. And define the concept Nano ideal semi preopen set by using nano topological space and some properties of this set. The main aim of rough sets is to increase the accuracy measure and reduce the boundary region of sets by increasing the lower approximations and decreasing the upper approximations.

The biosynthesis of nanoparticle-mediated pigments has been widely used as an antimicrobial agent against microorganisms.In order to study the effect of ferric oxide (Fe₂O₃) nanoparticles on Candida albicans, they were biosynthesized by using pyocyanin pigment produced from Pseudomonas aeruginosa. Fe₂O₃NPs were characterized by using atomic force microscopy (AFM), Fourier transform-infrared spectroscopy (FTIR), Field Emission Scanning Electron Microscope (FE-SEM), Energy Dispersive X-ray Spectroscopy (EDX), and UV-Visible spectroscopy. From December 2022 to July 2023, a total of 48 samples of C. albicans were collected from burns, wounds, and urine from private labs and Al-Kin

Neutrophils in saliva cause tissue death in inflammatory disorders, including periodontal disease. Identifying biomarkers for neutrophil mediators is crucial for accurate diagnosis in periodontics research. This study is to investigate the salivary levels of soluble cluster of differentiation 16b (sCD16b) and alpha defensin, which are biomarkers of neutrophil activation in patients with periodontal diseases, and to examine the correlation between these levels and clinical periodontal parameters. In this particular case-control study, a total of sixty subjects who were diagnosed with periodontal disease, including 30 with periodontitis and 30 with gingivitis, were recruited. These subjects ranged in age from 17 to 65 year

This study was conducted in the laboratories of the Department of Parasitology, Faculty of Veterinary Medicine, University of Baghdad, during the period from the beginning of February 2022 to the end of February 2023. Iraq is an endemic country with a high frequency of both types, visceral and cutaneous leishmaniasis, with several clinical manifestations. This study was designed to describe the histopathological alterations of skin infection and compare the hematological parameters between two groups of rabbits. In this study used two groups of rabbits one of which was experimentally infected with L. tropica. Leishmania tropica isolate was obtained from AL-Nahrain University, Biotechnol

The current study collected 157 clinical samples from Iraqi patients suffering from urinary tract infections at various Baghdad hospitals, including Medical City/Educational Laboratories, Baghdad Teaching Hospital, Imamin Al-Kadhimiya Hospital, and the Central Children's Hospital in Baghdad, from 27 November 2022 to 11 January 2023. We identified and tested the formation of biofilms, which led to the detection of two genes, algD and TspE4.C2. Vitek 2 confirmed the final diagnosis after a biochemical and microscopic examination of 11 selected E. coli isolates. The Congo red method has detected the bacterial vulnerability to form biofilms. he findings of this study showed that all selected bacterial isolates form

This study aimed to isolate and characterize fungus Aspergillus niger and treated by crude phenolic extract from Agaricus bisporus mushroom that contains a bioactive compound to treat fungi. Thirty samples were taken of suffered patients with otomycosis. Phenol extract was performed by HPLC technology, Molecular diagnosis of fungal isolation by PCR technique. Results show that the microscopic and culture examination on sabouraud dextrose agar medium showed that the fungal isolates A. niger had a percentage of (60%). The molecular diagnosis of fungal isolates using the polymerase chain reaction technique. HPLC showed being present of six biologically active substances in A. bisporus. Active substance (p

Fisheries is one of the main sectors on which some countries are increasingly dependent. Filling the food gap is an important resource in the agricultural resource base, but it is one of the neighborhoods affected by the agricultural activities. The bacterial disease agents were isolated from aquaculture in the Babylon governorate, Iraq, during December 2021 to the end of October 2022. A total of 65 specimens of Cyprinus carpio were infected (53%). Four bacterial diseases were diagnosed by clinical signs that appeared from severe infections of external and internal organs (fin rot, dropsy, bacterial gill disease, and vibriosis). Bacteria were identified according to their morphological characterization and using the Vitek 2 syst

      The novel quinazolinone derivatives were synthesized in excellent yields, manufactured, characterized, and investigated for their biological activity. This study aims to produce new quinazolinone derivatives and study their antibacterial activity. Quinazolinone derivatives were synthesized in three steps: the first step included the reaction of methyl anthranilate with isothiocyanatobenzene to produce a thiourea derivative (A1). In the second step (A1) was reacted with hydrazine hydrate to synthesized 3-Amino-2-(phenylamino) quinazolin-4(3H)-one (A2). The third step consisted of the reaction of (A2) with various organic compounds (phenylisotiocyanate, phenylisocyanate, acid halide, benzyl halide, and alkyl halide derivatives)

In today's digital era, the importance of securing information has reached critical levels. Steganography is one of the methods used for this purpose by hiding sensitive data within other files. This study introduces an approach utilizing a chaotic dynamic system as a random key generator, governing both the selection of hiding locations within an image and the amount of data concealed in each location. The security of the steganography approach is considerably improved by using this random procedure. A 3D dynamic system with nine parameters influencing its behavior was carefully chosen. For each parameter, suitable interval values were determined to guarantee the system's chaotic behavior. Analysis of chaotic performance is given using

     When an electron moves from one atom or molecule to another, a charge-transfer complex is formed. The other objects must be able to accept these electrons, and one entity must have free electrons or a tendency to donate them. This resembles an internal oxidation-reduction reaction more. This research aims to shed light on charge transfer complexes formed by polyenes and carotenes, which act as electron-donating molecules due to their alternating double and single bonds. This allows them to create such complexes when interacting with organic molecules that lack electrons. These complexes exhibited distinctive optical and physicochemical properties, enabling them to be adapted for a wide range of applications. In addition, the res

Diabetic nephropathy (DN) is a chronic disease manifested by a decreased glomerular filtration rate (GFR) that leads to the progression of kidney failure and increased incidence of mortality and cardiovascular complications. Type 2 diabetes mellitus (T2DM) is a metabolic disorder that affects multiple organs, including the pancreas, as well as the kidneys, liver, brain, and eyes. Angiotensin-converting enzyme 2 (ACE2) is a component of the renin-angiotensin system, which is highly expressed in renal tubular epithelial cells. This study aims to measure ACE2 and the urine albumin-to-creatinine ratio (ACR) as early detection markers for DN among T2DM patients. The sample size consisted of 135 individuals, who were divided into three groups

The widespread use of antibiotics has contributed to a progressive rise of Klebsiella pneumoniae resistance to antibiotics, posing a challenge in the implementation of infection control. The current study aims to give an update on the antibiotic resistance status of local K.pneumoniae isolates. A total of one hundred and sixty specimens from different sources were collected. The VITEK 2 compact system was used to confirm the identification and test the antibiotic susceptibility. Multiple antibiotic resistance indices were estimated for each isolate. Out of the total samples, eighty (50%) K. pneumoniae isolates were identified by morphological and cultural characteristics and CHROM agar. Noticeably, the majority

Hypertension is a global health concern, with women experiencing lower blood pressure during their reproductive cycle and postmenopausal women being more sensitive to it. Postmenopausal women's higher body mass increases the risk of hypertension, coronary artery disease, and death. Venous blood was taken from women of experimental groups by syringes into GEL tubes. Blood serum was obtained after allowing the blood to clot in the tube without anticoagulant for 10-20 min at room temperature. To calculate (TNF-alpha, CRP) for all samples, serum separation was done by centrifuge machine at 3000rpm for five minutes. C-reactive protein (CRP) kit and (TNF-alpha) kit by using the ELISA technique according to the manufacturer's i

It has been hypothesized that infection with the Epstein-Barr virus (EBV) may play a role in the development of autoimmune illnesses, including rheumatoid arthritis (RA). This study aimed to investigate whether or not a history of infection with the virus is more common in RA patients compared to controls. Ninety samples ranging from 20 to 70 years old were obtained (45 patients plus 45 controls) between October 2022 and March 2023; each group included 37 females and 8 males. Rheumatoid arthritis (RA) patients who were chosen for this study were sent with a physician report for RA regular tests at Baghdad Teaching Hospital in Baghdad Province. The apparently healthy individuals were obtained (from family, friends, and other acquaintances

In this paper, we share a discussion of the Couple Tension Effect on the Peristaltic Transfer of Carreau Peristaltic Flow of Fluid in an Inclined Nonlinear Canal with aPorous Medium the Carreau model's constitutive equation is selected to represent solutions to these problems are obtained A numerical method has been used to answer the problems and consideration, such as perturbation method. Closed form dynamical plus stream function formulas efficiency are pressure was created increase per wave length has been estimated numerically on the channel walls. The Hartman digits impacts (Ha), Darcy digit (Da), amplitude ratio (e), and their consequences. The full effects of axial velocity and entrapment are carefully examined and graphically re

The study investigated the behavioral, hematological, and histological changes of sub-lethal toxicity of Cypermethrin, a synthetic parathyroid insecticide, in male albino mice. The mice were divided into three groups, with the control group remaining untreated and the other groups treated with different doses. The behavioral effects produced mild to moderate toxic symptoms. The lower dose produced very mild toxicities characterized by intermittent diarrhea and decreased feed intake, whereas the higher dose displayed mild to moderate toxicities with diarrhea, decreased feed intake, loss of body weight, dyspnea, ataxia, eye discharge, and salivation. Hematological parameters such as packed cell volume (PCV), hemoglobin concentration (HB),

In this study, the physical, and mechanical properties of low-cost and biocomposites were evaluated. The walnut shell and date palm frond fibers were thermally treated in an oven at a temperature of 70°C and then chemically treated with NaOH and distilled water solution, after these treatments, the biocomposite materials will be thermally treated again at 50°C. This procedure was performed for three types of biocomposite; Walnut shell Fiber Reinforced Polymer (WFRP), Date palm Fiber Reinforced Polymer (DFRP), and Hybrid Fiber Reinforced Polymer (HFRP), whereas the biocomposite sheets consisting of 30% biofibers and 70% unsaturated polyester, the mechanical test specimens were cut by a CNC machine according to ASTM standards. The e