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Using the full-potential linearized augmented plane-wave (FP-LAPW) calculations with generalized gradient approximation functional (GGA), we investigated the structural, electronic and magnetic properties of the family compounds AlP as ternary diluted semiconductors (DMS)s Al 1− x (TM=Cr,V) x P with concentration of 0.25 and 0.125 in zinc blende phase (B3). The interaction of 3d orbital of transition metal with the 3p states of the four phosphorus atoms who occupy the summits of the tetrahedron resulting from SP3 hybridization, stabilize more the phenomena of magnetization by the effect of Zener's p–d exchange. The analyses of electronic and magnetic properties using the total and partial density of state and bands structure show that Al 1− x Cr x P and Al 1− x V x P are spin-polarized with a half-metallic band gap. We seem that these materials will be among the good candidates for spintronic applications. [ABSTRACT FROM AUTHOR]

The prevalence of CHF increases greatly as the patient's renal function deteriorates, and, at end-stage CKD, can reach 65–70%. There is evidence that CKD is a major contributor to severe cardiac damage. Purpose is to determine whether end-stage CKD is a prognostic factor in CHF. Transversal retrospective study conducted between May 2006 and June 2019 including patients beyond age of 14 with CHF followed-up in therapeutic unit of heart failure of our department. Data were collected on Excel and statistical analysis was made using SPSS statistics 2.0.We define 2 groups of patients. Group A with end-stage CKD and group B without end-stage CKD.We studied demographic, clinical and paraclinical characteristics among these 2 groups. We collected 3412 patients, 439 (12%) in group A and 2973 (82%) in group B. Main etiology of CHF was ischemic heart disease in both groups. Hypertension and dyslipidemia were more prevalent in group A. Diabetes was as prevalent in 2 groups. Comorbidities were more prevalent in group A as we observe more strokes (20% vs. 8%, P = 0,0001) and myocardial infarctions (31% vs. 28%, P = 0,0001). Group A patients were more symptomatic: stage III and IV NYHA in 30% vs. 19%, P = 0,0001. Patients of group A were more at risk of acute decompensated heart failure (21% vs. 9%, P = 0,005). Atrial fibrillation was more prevalent in group A (14% vs. 9%, P = 0,0001). Elevated left ventricle filling pressure was more prevalent in group A (40% vs. 34%, P = 0,003). Mean LVEF was 35,69 ± 12,56% in group A vs. 33,46 ± 10,42% in group B (P = 0,63). Left ventricle was more dilated in group A (59,24 ± 8,2 mm vs. 57,91 ± 9,31 mm, P = 0,020). Cooperation between nephrologists and cardiologists may improve quality of care and subsequent prognosis for CHF and CKD. [ABSTRACT FROM AUTHOR]

Heart failure with reduced ejection fraction (HFrEF) is an important clinical syndrome. Evidence from several observational studies suggests sex-related differences in the incidence and prognosis of HFrEF, particularly in the setting of coronary artery disease. Women appear more prone to develop heart failure. Objective of the study is to report clinical, electrical, echocardiographic, etiological and therapeutic aspects of HFrEF in women versus men. Transversal retrospective study conducted between May 2006 and June 2019 including all patients beyond the age of 14 with HFrEF followed-up in therapeutic unit of heart failure of our department. Data were collected on Excel and analyzed using SPSS 2.0. We studied clinical, electrical, echocardiographic and etiological aspects of CHF among women compared to men. 1237 women among 3412 HFrEF patients were included, women mean age was 64,96 ± 12,96 years vs. 64,89 ± 12,79 years in men (P = 0,068). 37,8% of women were diabetic vs. 26,1% of men (P < 0,001), 49,6% were hypertensive vs. 32,7% (P < 0,001), 4% were smokers vs. 42,5% (P < 0,001). 9,2% had a history of stroke vs. 10,6% (P = 0,205), 25,8% had a history of myocardial infarction vs. 32,6% (P < 0,001), 5,3% were at end-stage chronic kidney disease vs. 5,5% (P = 0,822). HFrEF in women compared to men was due to ischemic heart disease in 50,6% vs. 63,2% (P < 0,001). Dyspnea in women compared to men was classified mostly class II NYHA in 59,7% vs. 57,3%. 12,8% of women had atrial fibrillation vs. 12,5% in men (P = 0,860). Mean LVEF was 37,43 ± 15,85% vs. 35,65 ± 10,07% in men P < 0,001. No impact of gender on hospitalization for HF was observed (P = 0,867) Myocardial infarction was significantly more prevalent in women. Several studies indicate an increased long-term risk of HFrEF following myocardial infarction in women. This may be explained by a greater prevalence of risk factors for coronary atherosclerosis as well as by female gender. [ABSTRACT FROM AUTHOR]