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El-Houssaine Ablouh Zineb Kassab Fatima-zahra Semlali Aouragh Hassani Mounir El Achaby Houssine Sehaqui 《RSC advances》2021,12(2):1084
In search for more effective and eco-friendly adsorbent materials, this study comprehensively investigated Cd2+ adsorption onto phosphorylated cellulose paper (PCP). For this, cellulose microfibers (CMF) was extracted from Alfa fibers and phosphorylated using the solid-state phosphorylation approach. Then, the prepared PCP samples were characterized by SEM, EDX, XRD, FTIR, TGA, conductometric titration and zeta potential measurement. The adsorption of cadmium ions, the effect of time, pH and Cd2+ initial concentration were systematically studied in batch experiments. Based on the results, the highest adsorption capacity achieved was 479 mg of Cd2+ per g of PCP, which was remarkable compared to other modified cellulose capacities cited in the literature. Furthermore, the Cd2+ removal mechanism was investigated based on characterization results before and after adsorption and also based on the kinetics results. It was concluded that cation exchange and electrostatic attraction between phosphorylated cellulose and the cadmium ion mainly dominated the adsorption process. These findings highlighted that the phosphorylated cellulose paper has a broad application prospect in removal of divalent metal from aquatic solution.In search for more effective and eco-friendly adsorbent materials, this study comprehensively investigated Cd2+ adsorption onto phosphorylated cellulose paper (PCP). 相似文献
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Rachdi R Kaabi M Zayene H Basly M Messaoudi F Messaoudi L Chibani M 《La Tunisie médicale》2005,83(2):67-72
Severe gravidic toxemia gives heavy maternal and foetal morbidity and mortality. The purpose of our study is to loosen the factors of bad maternal and foetal prognostic. It's a retrospective study about 100 cases of severe and complicated gravidic toxemia repertorieted in the maternity of Military Hospital of Tunis. Maternal morbidity is dominated by the complications of hypertension and a blood disorders. We raised 4 cases of eclampsia, 9 cases of retro placental hematome and 5 cases of HELLP syndrome. We don't deplore any maternal death. Perinatal mortality is 28.8%. The rate of delay intra-uterine growth was 43.8% and the prematurity 65.9%. More toxemia appears early during pregnancy more maternal and foetal prognostic is compromised. 相似文献
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Lmejjati M Aniba K Haddi M Hakkou M Ghannane H Ait Ben Ali S 《Pediatric neurosurgery》2008,44(3):243-246
The authors report an unusual case of a child who presented with progressive paraparesis that lasted 15 days, revealing an intramedullary cystic lesion extending from T(3) to T(4) as detected with spine magnetic resonance imaging. A laminotomy from T(3) to T(4) was performed and the lesion removed. Histopathological findings confirmed the diagnosis of arachnoid cyst. After surgery, the patient's neurological status improved. At the 4-month follow-up examination, the results of his neurological examinations remained normal. Arachnoid cyst is an entity that should be included in the differential diagnosis of intramedullary cystic lesions. 相似文献
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Laouina A El Houate B Yahia H Azeddoug H Boulouiz R Chbel F 《Forensic science international. Genetics》2011,5(1):e1-e3
Allele frequencies and population data for 17 Y-STR loci included in the AmpFlSTR? Y-filer? PCR amplification kit (Applied Biosystems, Foster City, USA), that permit the simultaneous amplification of all the markers included in the actually used European "extended haplotype", DYS19, DYS189I, DYS389II, DYS390, DYS391, DYS392, DYS393, DYS385I/II, DYS438, DYS439 and also DYS437, DYS448, DYS456, DYS458, DYS635 and Y GATA H4, were obtained from a sample of 166 healthy unrelated males resident in Casablanca (from Morocco). A total of 166 haplotypes were identified, of which 142 were unique. The overall haplotype diversity for the 17 Y-STR loci reached 0.9974, and a discrimination capacity was 0.855. We report some non-standard situations, including duplications and microvariant alleles. 相似文献
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