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Background: Many patients experience stress and dissatisfaction when they are admitted to acute settings, where they receive short-term and active care for severe injuries, illnesses, or surgeries. Patient satisfaction is a key indicator of healthcare quality that affects patient outcomes, service delivery, and safety. Objective: This review aimed at systematically mapping and summarizing the evidence on non-pharmacological interventions that targeted patient satisfaction in inpatient acute settings. Methods: Three electronic databases were searched, including PubMed, EBSCO, and ScienceDirect. The inclusion criteria were: (1) studies of non-pharmacological interventions to improve patients' satisfaction and targeting inpatients between the ages of 19 and 65 years old; (2) studies written in English and published in the last 10 years, starting from 2017. The search results were imported and screened for eligibility on Covidence. The data was then extracted, using a tool entered in Covidence's Extraction 2.0. The extraction tool included domains on both intervention impact and delivery processes. Results: A total of 11 articles met the inclusion criteria. Randomized control trials represented the most among the group; seven studies were included given that the others were quasi-experimental studies. Those studies were conducted on the different types of services offered in acute care departments. These studies did not use a standardized questionnaire to evaluate their respective trial outcomes or to implement various adapted or adopted modules of intervention. Of note, the intervention was effective in enhancing patient satisfaction in only some of the studies. Conclusion: Different types of intervention modules have been effective in improving acute care patient satisfaction. However, further studies are needed to evaluate the effectiveness of an intervention among all patients in different acute care departments at the same time.
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Cadmium, a hazardous heavy metal prevalent in plants and soil, poses a significant threat to human health, particularly as approximately 60% of the global population consumes wheat, which can accumulate high levels of Cd through its roots. This uptake leads to the translocation of Cd to the shoots and grains, exacerbating the potential health risks. However, promising results have been observed with the use of moringa leaf extract (MLE) foliar spray in mitigating the adverse effects of Cd stress. The current experiment was conducted to find out the Cd stress tolerance of wheat varieties V1 = Akbar-19 and V2 = Dilkash-2020 under exogenous spray of MLE. The treatments of this study were T0 = 0% MLE + 0 µM Cd, T1 = 3% MLE + 0 µM Cd, T2 = 0% MLE + 400 µM Cd, and T3 = 3% MLE + 400 µM Cd. Cd stress demonstrated a significant reduction in morphological attributes as shoot and root fresh weight (22%), shoot and root dry weight (24.5%), shoot and root length (22.5%), area of leaf and number of leaves 30.5%, and photosynthetic attributes (69.8%) in comparison with control. Exposure of wheat plants to Cd toxicity cause oxidative stress, increased H2O2, and MDA up to 75% while foliar application of MLE reduced the activities of reactive oxygen species (ROS). The activity of catalase (CAT), superoxide dismutase (SOD), peroxidase (POD), and ascorbic acid (AsA) increased up to 81.5% as well as organic osmolytes such as phenolics, total soluble proteins, and total soluble sugars were improved up to 77% by MLE applications under Cd stress. Higher accumulation of ionic contents root Na+ (22%) and Cd (44%) was documented in plants under Cd stress as compared to control, while uptake of root mineral ions Ca2+ and K+ was 35% more in MLE-treated plants. In crux, Cd toxicity significantly declined the growth, photosynthetic, and biochemical parameters while 3% MLE application was found effective in alleviating the Cd toxicity by improving growth and physiological parameters while declining reactive oxygen species and root Na+ as well as Cd uptake in wheat.
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Microneedles (MNs), that is, a matrix of micrometer-scale needles, have diverse applications in drug delivery, skincare therapy, and health monitoring. MNs offer a minimally invasive alternative to hypodermic needles, characterized by rapid and painless procedures, cost-effective fabrication methods, and reduced tissue damage. This study explores four MN designs, cone-shaped, tapered cone-shaped, pyramidal with a square base, and pyramidal with a triangular-shaped base, and their optimization based on predefined criteria. The workflow encompasses three loading conditions: compressive load during insertion, critical buckling load, and bending loading resulting from incorrect insertion. Geometric parameters such as base radius/width, tip radius/width, height, and tapered angle tip influence the output criteria, namely, total deformation, critical buckling loads, factor of safety (FOS), and bending stress. The comprehensive framework employing a design of experiment approach within the ANSYS workbench toolbox establishes a mathematical model and a response surface fitting model. The resulting regression model, sensitivity chart, and response curve are used to create a multiobjective optimization problem that helps achieve an optimized MN geometrical design across the introduced four shapes, integrating machine learning (ML) techniques. This study contributes valuable insights into a potential ML-augmented optimization framework for MNs via needle designs to stay durable for various physiologically relevant conditions.
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Aim: Root canal treatment (RCT) is a common procedure practiced daily by dentists worldwide. The current systematic review aimed to evaluate and compare clinical studies on the quality of root canal fillings (RCFs) carried out by dentists with different levels of experience conducted worldwide with those conducted specifically in Saudi Arabia (SA). Materials and Methods: A full literature search was conducted in Clarivate Analytics' Web of Science, Elsevier's Scopus, Embase, CINHAL, and PubMed, without a restriction to studies published before January 2015. Also, a manual search was carried out by checking papers that may have been missed during the electronic search. The following keywords were used: [(quality of root canal filling(s)) OR (quality of root canal obturation)) and dental practitioners as (general dental practitioners; final year students; endodontist; specialist) AND (root canal obturation) OR (endodontic treatment)]. Parameters of the quality of RCFs, such as length, density, and taper, were assessed and counted. Results: A total of 13 worldwide and nine SA studies were included in this review, published between 2015 and 2023. Molars were the most treated teeth, at 42.3% and 40.2% for the worldwide and SA studies, respectively. Cases treated by final year students had the highest percentage, at 60.0% for both study groups. The percentages of acceptable quality, with regard to the length, density, and taper of RCFs, were 70.9%, 77.6%, and 84.3%, and 73.2%, 64.6%, and 67.8% for the worldwide and SA studies, respectively. Conclusion: The overall acceptable quality of RCFs was marginally higher in worldwide studies than in SA studies. Both prevalences can be considered as good, which indicates that the quality of RCFs is moving in the right direction.
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BACKGROUND: Multiple sclerosis (MS) is a chronic and often disabling disease that impacts the central nervous system, leading to significant public health concerns. This study aimed to assess the level of awareness and knowledge of MS among the population of Tobruk, Libya. METHODS: A community-based cross-sectional study was conducted in Tobruk, Libya, during August 2023. A total of 1,427 participants were surveyed using the Multiple Sclerosis Knowledge Questionnaire (MSKQ-25). Data were collected via an online Google form and analyzed using RStudio and SPSS. The analysis included descriptive statistics, Chi-square tests, t-tests, Mann-Whitney tests, ANOVA, Kruskal-Wallis tests, and Pearson's correlation coefficients. RESULTS: The study found a low level of MS awareness among participants, with a mean MSKQ-25 score of 8.32 ± 5.44. Significant differences in MS knowledge were observed between individuals with relatives who had MS and those without (p < 0.001), and between medical field students and students from other backgrounds (p < 0.001). No significant association was found between MS knowledge scores and marital status or educational levels. However, significant associations were observed between MS knowledge and age, gender, and financial status (p < 0.05 for all). The majority of participants lacked knowledge about genetics, etiology, and treatment of MS. CONCLUSION: The findings highlight a critical need for comprehensive public outreach and education programs to improve MS awareness in Tobruk, Libya. Health education initiatives focused on MS are essential for increasing community knowledge, facilitating early detection, and improving disease management. Further research is needed to understand the reasons for misinformation and to develop strategies for increasing awareness across the country.
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Conhecimentos, Atitudes e Prática em Saúde , Esclerose Múltipla , Humanos , Líbia , Estudos Transversais , Masculino , Feminino , Esclerose Múltipla/psicologia , Adulto , Adulto Jovem , Pessoa de Meia-Idade , Inquéritos e Questionários , AdolescenteRESUMO
Wheat is an important staple crop not only in Pakistan but all over the globe. Although the area dedicated to wheat cultivation expands annually, the quantity of wheat harvested is declining due to various biotic and abiotic factors. Global wheat production and output have suffered as a result of the drought, which is largely driven by a lack of water and environmental factors. Organic fertilizers have been shown to reduce the severity of drought. The current research was conducted in semi-arid climates to mitigate the negative effects of drought on wheat during its critical tillering (DTS), flowering (DFS), and grain filling (DGFS) stages through the application of three different abscisic acid treatments: ABA0 (0 mgL-1) control, ABA1 (100 mgL-1) and ABA2 (200 mgL-1). Wheat growth and yield characteristics were severely harmed by drought stress across all critical development stages, with the DGFS stage being particularly vulnerable and leading to a considerable loss in yield. Plant height was increased by 24.25%, the number of fertile tillers by 25.66%, spike length by 17.24%, the number of spikelets per spike by 16.68%, grain count per spike by 11.98%, thousand-grain weight by 14.34%, grain yield by 26.93% and biological yield by 14.55% when abscisic acid (ABA) was applied instead of the control treatment. Moreover, ABA2 increased the more physiological indices (water use efficiency (36.12%), stomatal conductance (44.23%), chlorophyll a (24.5%), chlorophyll b (29.8%), transpiration rate (23.03%), photosynthetic rate (24.84%), electrolyte leakage (- 38.76%) hydrogen peroxide (- 18.09%) superoxide dismutase (15.3%), catalase (20.8%), peroxidase (- 18.09%), and malondialdehyde (- 13.7%)) of drought-stressed wheat as compared to other treatments. In the case of N, P, and K contents in grain were maximally improved with the application of ABA2. Through the use of principal component analysis, we were able to correlate our results across scales and provide an explanation for the observed effects of ABA on wheat growth and production under arid conditions. Overall, ABA application at a rate of 200 mgL-1 is an effective technique to boost wheat grain output by mitigating the negative effects of drought stress.
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Ácido Abscísico , Secas , Triticum , Ácido Abscísico/metabolismo , Triticum/crescimento & desenvolvimento , Triticum/efeitos dos fármacos , Triticum/metabolismo , Triticum/fisiologia , Clorofila/metabolismo , Estresse Fisiológico , Fotossíntese/efeitos dos fármacos , Reguladores de Crescimento de Plantas/metabolismo , Reguladores de Crescimento de Plantas/farmacologiaRESUMO
The increasing usage of smartphones globally necessitates the creation of reliable and valid scales to evaluate their psychological effects, particularly within academic settings such as universities. The current study aimed to identify the factorial structure of the Smartphone Addiction Inventory (SPAI) in the Republic of Yemen. The sample consisted of 1920 university students (1136 males and 784 females). The data was analyzed with the AMOS V25 statistical program. The results of the factor analysis supported the goodness of fit of the five-factor model to the data with excellent indices: RMSEA = 0.052, CFI = 0.910, GFI = 0.931, AGFI = 0.915, TLI = 0.907, NFI = 0.915, RFI = 0.916, and RMR = 0.032, all of which are within the ideal range to support the goodness of fit of the model to the factorial structure of the inventory, as the values of the explained variances ranged between 0.740 and 0.834., with indices of reliability in measurement. The results of the confirmatory factor analysis revealed that four items loaded on the Time Spent factor, four items on the Compulsivity factor, eight items on the Daily Life Interference factor, five items on the Craving factor, and three items on the Sleep Interference factor, with all loadings being statistically significant (>0.001). Based on these findings, research direction and recommendations were provided.
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Fascin-1 (FSCN1) is recognized as an actin-binding protein, commonly exhibits up-regulation in breast cancer (BC) and is crucial for tumor invasion and metastasis. The existence of FSCN1 gene polymorphisms may raise the potential for developing BC, and there are still no studies focusing on the relationship between the FSCN1 rs2966447 variant and BC risk in Egyptian females. Thus, we investigated the serum fascin-1 levels in BC patients and the association between the FSCN1 rs2966447 variant with its serum levels and BC susceptibility. Genotyping was conducted in 153 treatment-naïve BC females with different stages and 144 apparent healthy females by TaqMan® allelic discrimination assay, whereas serum fascin-1 level quantification was employed by ELISA. The FSCN1 rs2966447 variant demonstrated a significant association with BC susceptibility under all utilized genetic models, cancer stages and estrogen receptor negativity. Also, BC females with AT and TT genotypes had higher serum fascin-1 levels and tumor size than those with the AA genotype. Moreover, serum fascin-1 levels were significantly elevated in the BC females, notably in those with advanced-stages. Furthermore, serum fascin-1 levels were markedly positively correlated with number of positive lymph nodes as well as tumor size. Collectively, these findings revealed that the FSCN1 rs2966447 variant may be regarded as a strong candidate for BC susceptibility. Also, this intronic variant is associated with increased serum fascin-1 levels and tumor size.
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Neoplasias da Mama , Proteínas de Transporte , Predisposição Genética para Doença , Proteínas dos Microfilamentos , Polimorfismo de Nucleotídeo Único , Humanos , Feminino , Neoplasias da Mama/genética , Neoplasias da Mama/sangue , Neoplasias da Mama/patologia , Proteínas dos Microfilamentos/genética , Proteínas dos Microfilamentos/sangue , Proteínas de Transporte/genética , Proteínas de Transporte/sangue , Pessoa de Meia-Idade , Adulto , Estudos de Casos e Controles , Genótipo , Biomarcadores Tumorais/genética , Biomarcadores Tumorais/sangue , EgitoRESUMO
This editorial synthesizes insights from a series of studies examining the interplay between metabolic and oxidative stress biomarkers in cardiovascular disease (CVD), focusing particularly on type-2 diabetes mellitus (T2DM) and acute coronary syndrome (ACS). The central piece of this synthesis is a study that investigates the balance between oxidative stress and antioxidant systems in the body through the analysis of serum bilirubin and γ-glutamyltranspeptidase (γ-GGT) levels in T2DM patients with ACS. This study highlights serum bilirubin as a protective antioxidant factor, while elevated γ-GGT levels indicate increased oxidative stress and correlate with major adverse cardiovascular events. Complementary to this, other research contributions reveal γ-GGT's role as a risk factor in ACS, its association with cardiovascular mortality in broader populations, and its link to metabolic syndrome, further elucidating the metabolic dysregulation in CVDs. The collective findings from these studies underscore the critical roles of γ-GGT and serum bilirubin in cardiovascular health, especially in the context of T2DM and ACS. By providing a balanced view of the body's oxidative and antioxidative mechanisms, these insights suggest potential pathways for targeted interventions and improved prognostic assessments in patients with T2DM and ACS. This synthesis not only corroborates the pivotal role of γ-GGT in cardiovascular pathology but also introduces the protective potential of antioxidants like bilirubin, illuminating the complex interplay between T2DM and heart disease. These studies collectively underscore the critical roles of serum bilirubin and γ-GGT as biomarkers in cardiovascular health, particularly in T2DM and ACS contexts, offering insights into the body's oxidative and antioxidative mechanisms. This synthesis of research supports the potential of these biomarkers in guiding therapeutic strategies and improving prognostic assessments for patients with T2DM and some CVD.
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Background: Alloimmunisation remains a major consequence of blood transfusion among sickle cell disease (SCD) and thalassemia patients due to the exposure to non-self-red blood cell (RBC) antigen. The complication is associated with transfusion reactions and delayed transfusion procedure because of the difficulty of finding compatible blood. This study aims to determine the prevalence of alloimmunisation to RBC and alloantibody specificities among SCD and thalassemia patients in, an endemic area of SCD and thalassemia, Jazan province of Saudi Arabia, from three major hospitals. Methods: This is a retrospective, multicenter cross-sectional study conducted on 1027 patients with SCD and thalassemia, which received Rh/K matched transfusions in 2019 in the three centers. Demographic data and medical records of participants from three transfusion institutions were collected and analysed. Results: A total of 1027 were enrolled in the cohort; 906 (88.2%) and 121 (11.8%) patients with SCD and thalassemia, respectively. There were 483 (47%) males and 544 (53%) females with median age of 15 (range 1-48). Among the studied population, 78 were alloimmunised with an overall alloimmunisation rate of 7.6%. These patients developed a total of 108 alloantibodies, and anti-E was the most detected antibody (25.9%) followed by anti-K (24.1%). Conclusion: The overall rate of alloimmunisation to RBC antigen among the studied population in Jazan was low compared to other areas in the country. Most alloantibodies detected were against E and K antigens. The knowledge of most encountered alloantibodies in our population will aid in selecting the most appropriate antigen-negative red cells. Further research, however, is needed to explore factors associated with residual risk of alloimmunisation in these patients.
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Drought stress (DS) is a significant abiotic stress that limits agricultural productivity worldwide. In semi-arid climates, one potential solution to alleviate the deleterious effects of drought is the use of soil amendments such as nanoparticles. The current research was conducted out to probe the sway of drought at critical growth stages (CGS) of wheat crop (D0: Control, D1: Drought at tillering stage, and D2: Drought at anthesis stage) and the application of Cu-nanoparticles (T0: 0 mg L-1, T1: 300 mg L-1, T2: 700 mg L-1, and T3: 950 mg L-1) in order to improve drought resilience. Results of the study revealed that DS considerably decreased the wheat growth and yield during CGS. However, Cu-nanoparticles application alleviated the detrimental backlash of DS and led to improvements in various aspects of wheat growth and yield, including plant height, spike length, 1000 grain weight, stomatal conductance, leaf chlorophyll content, water use efficiency, leaf turgor potential, relative water content, and ultimately the grain yield. The use of principal component analysis allowed us to integrate and interpret the diverse findings of our study, elucidating the impact of Cu-nanoparticle treatment on wheat growth and yield under drought. Overall, the study concluded that DS during the anthesis stage had the most significant negative impact on crop yield. However, applying Cu-nanoparticles at the rate of 300 mg L-1 proved to be an effective strategy for improving crop productivity by reducing the harmful effects of drought.
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Cobre , Secas , Triticum , Triticum/crescimento & desenvolvimento , Triticum/efeitos dos fármacos , Nanopartículas Metálicas/química , Estresse Fisiológico , Água/metabolismo , Folhas de Planta/crescimento & desenvolvimento , Folhas de Planta/efeitos dos fármacos , Clorofila/metabolismo , Solo/químicaRESUMO
BACKGROUND: Recognizing nurses as pivotal change agents and urgent preparation for the next generation is crucial for addressing sustainability issues and cultivating a sustainable healthcare system. Reports highlight gaps in the integration of sustainable development goals (SDGs) into nursing curricula, prompting the International Council of Nurses to stress the importance of sustainable development in nursing education. The extent to which nursing students are aware of sustainability issues remains to be determined. This study addresses a global and Egyptian research gap by evaluating and comparing Sustainability Consciousness (SC) levels among nursing students at three universities, providing insights into awareness, attitudes, and behaviors related to sustainability. METHODS: This descriptive comparative study was conducted across three nursing faculties within three Egyptian public universities. The target population for this study was undergraduate nursing students enrolled in these universities during the academic year 2022-2023. This study used the extended version of the Sustainability Consciousness Questionnaire (SCQ-L) to measure individuals' knowingness, attitudes, and behaviors related to the three dimensions of sustainable development: environmental, social, and economic. RESULTS: More than half of the nursing students across the three universities expressed unfamiliarity with the SDGs. Social media was the most common source of information across the three universities. Sohag University recorded the highest median (IQR) scores in sustainability knowingness (72.0, IQR: 70.0-81.0), attitudes (56.0, IQR: 53.0-61.5), and behavior (65.0, IQR: 60.0-69.0) across their respective dimensions, as well as in overall SC (195, IQR: 184.5-208.5). This was followed by Damanhour University, with a median score of 179.0 (IQR: 124.5-194), and then Alexandria University, with a median score of 116.0 (IQR: 85.5-153), all of which were significantly different (all with p values=0.000). Older students from rural areas exhibited higher SC median scores, while students with insufficient family income and no familiarity with the SDGs had lower SC scores. CONCLUSIONS: This study highlighted the prevalent reliance on social media for information among nursing students across these universities, emphasizing the pivotal role of academic institutions in integrating sustainability development concepts in nursing education. Sohag University's notable commitment to sustainability practices has contributed to the higher SC of its students compared to Alexandria and Damanhour Universities. The study also identified age, place of residence, family income, and familiarity with the SDGs as consistent predictors of sustainability consciousness.
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Large amount of wastes are burnt or left to decompose on site or at landfills where they cause air pollution and nutrient leaching to groundwater. Waste management strategies that return these food wastes to agricultural soils recover the carbon and nutrients that would otherwise have been lost, enrich soils and improve crop productivity. The incorporation of liming materials can neutralize the protons released, hence reducing soil acidity and its adverse impacts to the soil environment, food security, and human health. Biochar derived from organic residues is becoming a source of carbon input to soil and provides multifunctional values. Biochar can be alkaline in nature, with the level of alkalinity dependent upon the feedstock and processing conditions. This study conducted a characterization of biochar derived from the pyrolysis process of eggplant and Acacia nilotica bark at temperatures of 300 °C and 600 °C. An analysis was conducted on the biochar kinds to determine their pH, phosphorus (P), as well as other elemental composition. The proximate analysis was conducted by the ASTM standard 1762-84, while the surface morphological features were measured using a scanning electron microscope. The biochar derived from Acacia nilotica bark exhibited a greater yield and higher level of fixed carbon while possessing a lower content of ash and volatile components compared to biochar derived from eggplant. The eggplant biochar exhibits a higher liming ability at 600 °C compared to the acacia nilotica bark-derived biochar. The calcium carbonate equivalent, pH, potassium (K), and phosphorus (P) levels in eggplant biochars increased as the pyrolysis temperature increased. The results suggest that biochar derived from eggplant could be a beneficial resource for storing carbon in the soil, as well as for addressing soil acidity and enhancing nutrients availability, particularly potassium and phosphorus in acidic soils.
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Biomassa , Carvão Vegetal , Pirólise , Carvão Vegetal/química , Fósforo/química , Fósforo/análise , Madeira/química , Concentração de Íons de Hidrogênio , Solo/química , Temperatura , Acacia/química , Carbono/química , Carbono/análiseRESUMO
OBJECTIVES: The primary goal of this study was to systematically identify all relevant published articles on the use of primary endoscopic balloon dilation for the management of pediatric patients with subglottic stenosis, critically assess the technique's success, and determine which patients are the best candidates for the procedure. METHODOLOGY: This was a systematic review and meta-analysis that aimed to investigate the use and success rate of EBD for treating pediatric SGS. An electronic systematic literature search of three major databases, PubMed, EBSCO, and Web of Science&MEDLINE through Clarivate, was conducted to include the eligible articles. RESULTS: A total of 14 unique studies were included in the final analysis, with 473 cases of pediatric SGS. The pooled success rate of EBD in treatment of pediatric SGS was 76% (k = 14 studies, 95% confidence interval [CI] = 0.65-0.86, P < 0.001, Q test for heterogeneity = 0.03, P < .001, I2 = 91%). CONCLUSIONS: We reported a high success rate of EBD in treating pediatric SGS. The reported complications were uncommon, although they can be serious and life threatening. The intensity of SGS may be related to the likelihood of therapy failure.
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Dilatação , Laringoscopia , Laringoestenose , Humanos , Laringoestenose/terapia , Criança , Dilatação/métodos , Dilatação/instrumentação , Laringoscopia/métodos , Resultado do TratamentoRESUMO
Within the field of medical treatments, corticosteroids are potent substances that efficiently reduce inflammation and immunological responses, making them essential for the management of a wide range of medical ailments. However, continued use of these synthetic drugs presents a serious risk: the onset of osteoporosis brought on by corticosteroids. Determining the complex pathways by which corticosteroids cause a general disturbance in bone metabolism, suppress osteoblast function, increase osteoclast activity, and upset the delicate balance of bone remodelling emphasizes the need for all-encompassing management and prevention approaches. In this review, we aim to expose the complexities of corticosteroid-induced bone loss and urge for personalized, proactive measures to improve long-term therapeutic outcomes.
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Background: Metaplastic breast cancer is a clinically rare subtype of breast carcinomas, accounting for less than 1% of all breast neoplasms, and was not officially recognized till the end of the 20th century as an independent pathological diagnosis. Objective: In this paper, we report a case of metaplastic breast cancer with squamous differentiation in a 51-year-old female, with a succinct review of the literature. Case Report: The patient presented to our outpatient department with a complaint of left breast mass for 2 months duration with a diagnostic workup found to be grade three metaplastic carcinoma with squamous differentiation. The management decision was to proceed with neoadjuvant chemotherapy, followed by surgical intervention based on the tumor cell response to neoadjuvant therapy. Conclusion: Metaplastic breast cancer represents a rare clinical entity, encountered in a minority of patients. The clinical presentation of metaplastic carcinomas in general is similar to other breast cancers, however, metaplastic breast cancer tend to present in later stages as a rapidly growing mass with poor prognosis. The recognized poor prognosis along with rarity necessities having a high index of suspicion for early detection and appropriate management of metaplastic breast cancer.
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Neoplasias da Mama , Carcinoma de Células Escamosas , Feminino , Humanos , Pessoa de Meia-Idade , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Metaplasia , Terapia Neoadjuvante , Carcinoma de Células Escamosas/patologiaRESUMO
Software Defined Network (SDN) has alleviated traditional network limitations but faces a significant challenge due to the risk of Distributed Denial of Service (DDoS) attacks against an SDN controller, with current detection methods lacking evaluation on unrealistic SDN datasets and standard DDoS attacks (i.e., high-rate DDoS attack). Therefore, a realistic dataset called HLD-DDoSDN is introduced, encompassing prevalent DDoS attacks specifically aimed at an SDN controller, such as User Internet Control Message Protocol (ICMP), Transmission Control Protocol (TCP), and User Datagram Protocol (UDP). This SDN dataset also incorporates diverse levels of traffic fluctuations, representing different traffic variation rates (i.e., high and low rates) in DDoS attacks. It is qualitatively compared to existing SDN datasets and quantitatively evaluated across all eight scenarios to ensure its superiority. Furthermore, it fulfils the requirements of a benchmark dataset in terms of size, variety of attacks and scenarios, with significant features that highly contribute to detecting realistic SDN attacks. The features of HLD-DDoSDN are evaluated using a Deep Multilayer Perception (D-MLP) based detection approach. Experimental findings indicate that the employed features exhibit high performance in the detection accuracy, recall, and precision of detecting high and low-rate DDoS flooding attacks.
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Benchmarking , Terapia Implosiva , Inundações , Internet , SoftwareRESUMO
Semiconductor chalcopyrite compounds have been a subject of research interest due to their diverse range of physical properties that have captured the attention of scientists. In this ongoing research, we have examined the physical characteristics of LiSbN2 and NaSbN2 chalcopyrites using DFT. The modified Becke-Johnson (mBJ) potential is utilized for the computation of electronic structures. The stability is attained with negative formation energies and optimization curves. A bandgap of 2.60 eV in LiSbN2 and 3.15 eV in NaSbN2 has been achieved, which is further endorsed by the density of states. An in-depth analysis of the optical properties unveils the potential utility of LiSbN2 and NaSbN2 in various photovoltaic devices, attributed to its pronounced absorption in the UV spectrum. The transport characteristics are also assessed through various transport characteristics. The large electrical conductivity and ZT values for both chalcopyrite compounds are attained. Due to their remarkable capability to convert heat into electricity, these materials display potential for use in thermoelectric devices.