Enhanced removal of radioactive iodine anions from wastewater using modified bentonite: Experimental and theoretical study

xlomafota13 shared this article with you from Inoreader Enhanced removal of radioactive iodine anions from wastewater using modified bentonite: Experimental and theoretical study Via radioactive iodine Chemosphere. 2021 Dec 22:133401. doi: 10.1016/j.chemosphere.2021.133401. Online ahead of print. ABSTRACT Efficient and cost-effective removal of radioactive iodine anions from contaminated water has become a crucial task and a great challenge for waste treatment and environmental remediation. Herein, we present hexadecylpyridinium chloride monohydrate modified bentonite (HDPy-bent) for the efficient and selective removal of iodine anions (I- and IO3-) from contaminated water. Batch experiments showed that HDPy-bent could remove more than 95% of I- and IO3- within 10 min, and had maximum I- and IO3- adsorption capacities of 80.0 and 50.2 mg/g, respectively. Competitive experiments indicated that HDPy-bent exhibited excellent I- and IO3- selectivity in the excessive presence of common concomitant anions including PO43-, SO42-, HCO3-, NO3-, Cl- (maximum mole ratio of anions vs iodine anions was ∼50,000). An anion exchange mechanism was proposed for the selective adsorption of iodine anions. Optimal adsorption structure of HDPy+/I- (IO3-) at atomic level and driving forces of the I- (IO3-) adsorption were calculated by density functional theory (DFT) simulati ons. Moreover, the good durability and reusability of the HDPy-bent has been demonstrated with 5 adsorption-desorption cycles. Dynamic column experiment also demonstrated that HDPy-bent exhibited excellent removal and fractional recovery capabilities towards I- and IO3- from simulated groundwater and environmental water samples. In conclusion, this work presents a promising adsorbent material for the decontamination of radioactive iodine anions from wastewater on a large scale. PMID:34953880 | DOI:10.1016/j.chemosphere.2021.133401 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Incidence of Head and Neck Cancers before and after 9/11 in New York City and New York State

xlomafota13 shared this article with you from Inoreader Incidence of Head and Neck Cancers before and after 9/11 in New York City and New York State Via O.R.L. Journal for oto-rhino-laryngology and its borderlands Introduction: The incidence of cancers in New York State (NYS) before and after 9/11 including lung, colorectal, and renal cancers has been previously described. To date, the incidence of head and neck cancers (HNCs) before and after 9/11 has not been described. Methods: Cancers involving the oral cavity and oropharynx; the nose, nasal cavity, nasopharynx, and middle ear; larynx; and thyroid were identified using the New York State Cancer Registry (NYSCR). Age-adjusted incidence and rates per 100,000 residents from 1987 to 2015 were analyzed using joinpoint regression. Trends in incidence using annual percent changes are presented. Results: The overall rate of HNC increased slightly by 0.7% (p #x3c; 0.001) from 1987 to 2003 in NYS. From 2003 to 2008, the rate increased by 5.73% (p #x3c; 0.001), and from 2008 to 2015, the rate increased by 1.68% (p #x3c; 0.001). The rate of thyroid cancer increased by 6.79% (p #x3c; 0.001) from 1987 to 2003, by 9.99% (p #x3c; 0.001) from 2003 to 2009, and by 2.41% (p = 0.001) from 2009 to 2015. The rate of thyroid cancer was higher in women at all time points. In a subset analysis of HNCs excluding thyroid cancer, the rate decreased by 2.02% (p #x3c; 0.001) from 1991 to 2001, followed by a nonsignificant increase of 0.1% (p = 0.515) from 2001 to 2015. The rate of oropharyngeal (OP) cancer significantly increased from 1999 to 2015 (2.65%; p #x3c; 0.001). The rate of oral cavity cancer significantly decreased from 1987 to 2003 (1.97%; p #x3c; 0.001), with no significant change after 2003. The rate of laryngeal cancer decreased significantly by 2.43% (p #x3c; 0.001) from 1987 to 2015, as did the rate of nasal cavity/nasopharyngeal cancer (0.33%; p = 0.03). Conclusions: In NYS, OP cancer and thyroid cancer rates increased significantly during the study period. The rate of thyroid cancer wa s higher in women. The rate of combined HNC increased significantly after 9/11 compared to before 9/11; however, in a subset analysis of all HNC patients excluding thyroid cancer, the rate decreased significantly prior to 9/11 and then nonsignificantly increased afterward. This suggests that the increase in thyroid cancer accounts for the increase in combined HNC in NYS. The impact of 9/11 on rates of HNC requires further research. ORL View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Diagnostic histologique et moléculaire des cancers de l'ovaire - recommandations pour la pratique clinique Saint-Paul 2021: Histological and molecular diagnosis of ovarian

xlomafota13 shared this article with you from Inoreader Diagnostic histologique et moléculaire des cancers de l'ovaire - recommandations pour la pratique clinique Saint-Paul 2021: Histological and molecular diagnosis of ovarian Via Association française pour l'étude du cancer Bull Cancer. 2021 Dec;108(9S1):S33-S38. doi: 10.1016/S0007-4551(21)00585-3. ABSTRACT Oncogenetic testing is now part of standard management in high grade ovarian cancer, including at least mutational status of BRCA1/BRCA2 genes. If necessary, tumor genetic testing is followed by constitutional testing to either confirm the constitutional origin of variants identified in BRCA1/2 genes or detect variants in other predisposition genes. The whole process including prescription of tumoral testing, retrieval of analysis report and communication of results must be formalized, as well as information on possible consequences of the results for the patient and her family. Tumor material must meet criteria of size and cellularity to allow high-quality analysis. These samples are processed during the preanalytical phase with two major steps : time of cold ischemia and fixation. Only pathogenic (Class V) and likely pathogenic (Class IV) variants sh own in tumor tissue are mentioned in the report. Currently, only BRCA1 and BRCA2 genes are routinely studied but, in the future, analysis will be extended to other genes involved in homologous recombination repair. In patients without BRCA mutation, other biomarkers reflecting sensitivity to PARP inhibitors, such as HRD scores (homologous recombination deficiency) that appeared recently, will have to be implemented in routine practice in order to better select patients for these treatments and choose optimal therapy. PMID:34955160 | DOI:10.1016/S0007-4551(21)00585-3 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Breathy Dysphonia, Not Just a Pain in the Neck

xlomafota13 shared this article with you from Inoreader Breathy Dysphonia, Not Just a Pain in the Neck Via ear nose throat Ear Nose Throat J. 2021 Dec 27:1455613211069919. doi: 10.1177/01455613211069919. Online ahead of print. ABSTRACT We describe a rare occurrence of unilateral vocal fold paralysis associated with a cervical osteophyte abutting the course of the recurrent laryngeal nerve. Trans-nasal laryngoscopy is vital in diagnosing vocal fold paralysis, but often does not provide insight into etiology. This case highlights the importance of radiographic imaging in newly diagnosed vocal fold paralysis, and underscores the principle that a diagnosis is not idiopathic until all sources have been ruled out. PMID:34958270 | DOI:10.1177/01455613211069919 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

An Intramolecular Ionic Interaction Linking Defective Sodium/Iodide Symporter Transport to the Plasma Membrane and Dyshormonogenic Congenital Hypothyroidism

xlomafota13 shared this article with you from Inoreader An Intramolecular Ionic Interaction Linking Defective Sodium/Iodide Symporter Transport to the Plasma Membrane and Dyshormonogenic Congenital Hypothyroidism Via liebertpub1 Thyroid, Ahead of Print. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.