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https://www.readbyqxmd.com/read/28730066/-these-are-not-luxuries-it-is-essential-for-access-to-life-disability-related-out-of-pocket-costs-as-a-driver-of-economic-vulnerability-in-south-africa
#1
Jill Hanass-Hancock, Siphumelele Nene, Nicola Deghaye, Simmi Pillay
BACKGROUND: With the dawn of the new sustainable development goals, we face not only a world that has seen great successes in alleviating poverty but also a world that has left some groups, such as persons with disabilities, behind. Middle-income countries (MICs) are home to a growing number of persons with disabilities. As these countries strive to achieve the new goals, we have ample opportunity to include persons with disabilities in the emerging poverty alleviation strategies. However, a lack of data and research on the linkages between economic vulnerability and disability in MICs hampers our understanding of the factors increasing economic vulnerability in people with disabilities...
2017: Afr J Disabil
https://www.readbyqxmd.com/read/28671188/revising-the-hygroscopicity-of-inorganic-sea-salt-particles
#2
P Zieger, O Väisänen, J C Corbin, D G Partridge, S Bastelberger, M Mousavi-Fard, B Rosati, M Gysel, U K Krieger, C Leck, A Nenes, I Riipinen, A Virtanen, M E Salter
Sea spray is one of the largest natural aerosol sources and plays an important role in the Earth's radiative budget. These particles are inherently hygroscopic, that is, they take-up moisture from the air, which affects the extent to which they interact with solar radiation. We demonstrate that the hygroscopic growth of inorganic sea salt is 8-15% lower than pure sodium chloride, most likely due to the presence of hydrates. We observe an increase in hygroscopic growth with decreasing particle size (for particle diameters <150 nm) that is independent of the particle generation method...
July 3, 2017: Nature Communications
https://www.readbyqxmd.com/read/28640603/changes-in-light-absorptivity-of-molecular-weight-separated-brown-carbon-due-to-photolytic-aging
#3
Jenny P S Wong, Athanasios Nenes, Rodney J Weber
Brown carbon (BrC) consists of those organic compounds in atmospheric aerosols that absorb solar radiation and may play an important role in planetary radiative forcing and climate. However, little is known about the production and loss mechanisms of BrC in the atmosphere. Here, we study how the light absorptivity of BrC from wood smoke and secondary BrC generated from the reaction of ammonium sulfate with methylglyoxal changes under photolytic aging by UVA radiation in the aqueous phase. Owing to its chemical complexity, BrC is separated by molecular weight using size exclusion chromatography, and the response of each molecular weight fraction to aging is studied...
July 14, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28611503/exploiting-phosphate-starved-cells-of-scenedesmus-sp-for-the-treatment-of-raw-sewage
#4
Swati Yewalkar-Kulkarni, Gayatri Gera, Sanjay Nene, Kiran Pandare, Bhaskar Kulkarni, Sanjay Kamble
Phosphate depletion is one of the favorable ways to enhance the sewage water treatment with the algae, however, detailed information is essential with respect to internal phosphate concentration and physiology of the algae. The growth rate of the phosphate-starved Scenedesmus cells was reduced drastically after 48 h. Indicating cells entered in the stationary phase of the growth cycle. Fourier Transform Infrared analysis of phosphate-starved Scenedesmus cells showed the reduction in internal phosphate concentration and an increase in carbohydrate/phosphate and carbohydrate/lipid ratio...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28603566/current-concepts-in-pediatric-cervical-spine-trauma
#5
Kunal Shah, Agnivesh Tikoo, Manish K Kothari, Abhay Nene
BACKGROUND: Pediatric spinal trauma is rare and challenging entity. Although cervical spine is commonly affected, it is often missed on routine imaging investigations. Therefore better understanding of growing spine and its patho-physiology is crucial. METHODS: Articles related to pediatric cervical trauma were searched on Pubmed and other online research data banks. We have summarized unique anatomy of pediatric spine, investigations followed by common injury patterns, their diagnostic challenges and management...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28603565/current-concepts-congenital-scoliosis
#6
Agnivesh Tikoo, Manish K Kothari, Kunal Shah, Abhay Nene
BACKGROUND: Congenital scoliosis is one of the 'difficult to treat' scenarios which a spine surgeon has to face. Multiple factors including the age of child at presentation, no definite pattern of deformity and associated anomalies hinder the execution of the ideal treatment plan. All patients of congenital scoliosis need to be investigated in detail. X rays and MRI of spine is usually ordered first. Screening investigations to rule out VACTERL (Visceral, Anorectal, Cardiac, Tracheo-esophageal fistula, Renal and Lung) abnormalities are required...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28458968/the-aesthetic-items-scale-a-tool-for-the-evaluation-of-aesthetic-outcome-after-breast-reconstruction
#7
Rieky E G Dikmans, Lauren E H Nene, Mark-Bram Bouman, Henrica C W de Vet, Marc A M Mureau, Marlon E Buncamper, Hay A H Winters, Marco J P F Ritt, Margriet G Mullender
BACKGROUND: Valid tools to assess aesthetic outcomes after breast reconstructive surgery are scarce. Previously a professional aesthetic assessment scale was introduced, the Aesthetic Items Scale (AIS). We aim to determine if this method is a valid and reliable tool to assess aesthetic outcome after breast reconstructive surgery. METHODS: The study population was consenting women who underwent prophylactic mastectomy with subsequent implant-based breast reconstruction...
March 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28394569/simulating-aqueous-phase-isoprene-epoxydiol-iepox-secondary-organic-aerosol-production-during-the-2013-southern-oxidant-and-aerosol-study-soas
#8
Sri Hapsari Budisulistiorini, Athanasios Nenes, Annmarie G Carlton, Jason D Surratt, V Faye McNeill, Havala O T Pye
The lack of statistically robust relationships between IEPOX (isoprene epoxydiol)-derived SOA (IEPOX SOA) and aerosol liquid water and pH observed during the 2013 Southern Oxidant and Aerosol Study (SOAS) emphasizes the importance of modeling the whole system to understand the controlling factors governing IEPOX SOA formation. We present a mechanistic modeling investigation predicting IEPOX SOA based on Community Multiscale Air Quality (CMAQ) model algorithms and a recently introduced photochemical box model, simpleGAMMA...
May 2, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28350334/conceptions-of-contraceptive-use-in-rural-kwazulu-natal-south-africa-lessons-for-programming
#9
Catherine Ndinda, Tidings Ndhlovu, Nene Ernest Khalema
Community family planning programmes in South Africa arose from the controversial apartheid history of controlling the African population while encouraging the growth of European migrant population. Post-apartheid population policies shifted away from population control to aligning policies to the global agenda that placed emphasis on the link between population and development. The focus on population and development polices in post-apartheid South Africa is on social equality, justice and peace rather than controlling sections of the population...
March 28, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28303714/ph-of-aerosols-in-a-polluted-atmosphere-source-contributions-to-highly-acidic-aerosol
#10
Guoliang Shi, Jiao Xu, Xing Peng, Zhimei Xiao, Kui Chen, Yingze Tian, Xinbei Guan, Yinchang Feng, Haofei Yu, Athanasios Nenes, Armistead G Russell
Acidity (pH) plays a key role in the physical and chemical behavior of PM2.5. However, understanding of how specific PM sources impact aerosol pH is rarely considered. Performing source apportionment of PM2.5 allows a unique link of sources pH of aerosol from the polluted city. Hourly water-soluble (WS) ions of PM2.5 were measured online from December 25th, 2014 to June 19th, 2015 in a northern city in China. Five sources were resolved including secondary nitrate (41%), secondary sulfate (26%), coal combustion (14%), mineral dust (11%), and vehicle exhaust (9%)...
April 18, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28291234/collocated-observations-of-cloud-condensation-nuclei-particle-size-distributions-and-chemical-composition
#11
Julia Schmale, Silvia Henning, Bas Henzing, Helmi Keskinen, Karine Sellegri, Jurgita Ovadnevaite, Aikaterini Bougiatioti, Nikos Kalivitis, Iasonas Stavroulas, Anne Jefferson, Minsu Park, Patrick Schlag, Adam Kristensson, Yoko Iwamoto, Kirsty Pringle, Carly Reddington, Pasi Aalto, Mikko Äijälä, Urs Baltensperger, Jakub Bialek, Wolfram Birmili, Nicolas Bukowiecki, Mikael Ehn, Ann Mari Fjæraa, Markus Fiebig, Göran Frank, Roman Fröhlich, Arnoud Frumau, Masaki Furuya, Emanuel Hammer, Liine Heikkinen, Erik Herrmann, Rupert Holzinger, Hiroyuki Hyono, Maria Kanakidou, Astrid Kiendler-Scharr, Kento Kinouchi, Gerard Kos, Markku Kulmala, Nikolaos Mihalopoulos, Ghislain Motos, Athanasios Nenes, Colin O'Dowd, Mikhail Paramonov, Tuukka Petäjä, David Picard, Laurent Poulain, André Stephan Henry Prévôt, Jay Slowik, Andre Sonntag, Erik Swietlicki, Birgitta Svenningsson, Hiroshi Tsurumaru, Alfred Wiedensohler, Cerina Wittbom, John A Ogren, Atsushi Matsuki, Seong Soo Yum, Cathrine Lund Myhre, Ken Carslaw, Frank Stratmann, Martin Gysel
Cloud condensation nuclei (CCN) number concentrations alongside with submicrometer particle number size distributions and particle chemical composition have been measured at atmospheric observatories of the Aerosols, Clouds, and Trace gases Research InfraStructure (ACTRIS) as well as other international sites over multiple years. Here, harmonized data records from 11 observatories are summarized, spanning 98,677 instrument hours for CCN data, 157,880 for particle number size distributions, and 70,817 for chemical composition data...
March 14, 2017: Scientific Data
https://www.readbyqxmd.com/read/28285555/factors-affecting-the-rates-of-caesarean-sections-in-cases-with-premature-rupture-of-membranes-prom-at-term
#12
Muberra Namli Kalem, Aydın Köşüş, Zeynep Kamalak, Nermin Köşüş, Ziya Kalem
The aim of this retrospective study was to investigate the factors affecting the rates of caesarean section in cases with premature rupture of membranes (PROM) in term pregnancies. Eighty-two term PROM patients who presented to Turgut Ozal University and Erzurum Nene Hatun Hospitals between 2012 and 2014 were included. The effects of demographics, nulliparity, active-latent phase durations, presence of meconium and chorioamnionitis, requirement of oxytocin and cervical dilation at the initial examination on C/S rates were assessed...
March 13, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28275731/air-pollution-aerosol-interactions-produce-more-bioavailable-iron-for-ocean-ecosystems
#13
Weijun Li, Liang Xu, Xiaohuan Liu, Jianchao Zhang, Yangting Lin, Xiaohong Yao, Huiwang Gao, Daizhou Zhang, Jianmin Chen, Wenxing Wang, Roy M Harrison, Xiaoye Zhang, Longyi Shao, Pingqing Fu, Athanasios Nenes, Zongbo Shi
It has long been hypothesized that acids formed from anthropogenic pollutants and natural emissions dissolve iron (Fe) in airborne particles, enhancing the supply of bioavailable Fe to the oceans. However, field observations have yet to provide indisputable evidence to confirm this hypothesis. Single-particle chemical analysis for hundreds of individual atmospheric particles collected over the East China Sea shows that Fe-rich particles from coal combustion and steel industries were coated with thick layers of sulfate after 1 to 2 days of atmospheric residence...
March 2017: Science Advances
https://www.readbyqxmd.com/read/28193618/incorporating-cancer-risk-information-into-general-practice-a-qualitative-study-using-focus-groups-with-health-professionals
#14
Juliet A Usher-Smith, Barbora Silarova, Alison Ward, Jane Youell, Kenneth R Muir, Jackie Campbell, Joanne Warcaba
BACKGROUND: It is estimated that approximately 40% of all cases of cancer are attributable to lifestyle factors. Providing people with personalised information about their future risk of cancer may help promote behaviour change. AIM: To explore the views of health professionals on incorporating personalised cancer risk information, based on lifestyle factors, into general practice. DESIGN AND SETTING: Qualitative study using data from six focus groups with a total of 24 general practice health professionals from the NHS Nene Clinical Commissioning Group in England...
March 2017: British Journal of General Practice: the Journal of the Royal College of General Practitioners
https://www.readbyqxmd.com/read/28169053/management-of-cancer-associated-venous-thromboembolism-in-the-emergency-department
#15
REVIEW
Rahul V Nene, Christopher J Coyne
Patients with cancer are at increased risk of venous thromboembolism, and emergency physicians can play a significant role in addressing one of the leading causes of morbidity and mortality in this patient population. However, there are no comprehensive guidelines addressing the approach to cancer-associated venous thromboembolism in the emergency department. Here, we review the guidelines put forth by various national and international cancer societies and highlight how emergency physicians can help institute appropriate treatment and prevent the recurrence of venous thromboembolism in cancer patients...
June 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/28141928/highly-acidic-ambient-particles-soluble-metals-and-oxidative-potential-a-link-between-sulfate-and-aerosol-toxicity
#16
Ting Fang, Hongyu Guo, Linghan Zeng, Vishal Verma, Athanasios Nenes, Rodney J Weber
Soluble transition metals in particulate matter (PM) can generate reactive oxygen species in vivo by redox cycling, leading to oxidative stress and adverse health effects. Most metals, such as those from roadway traffic, are emitted in an insoluble form, but must be soluble for redox cycling. Here we present the mechanism of metals dissolution by highly acidic sulfate aerosol and the effect on particle oxidative potential (OP) through analysis of size distributions. Size-segregated ambient PM were collected from a road-side and representative urban site in Atlanta, GA...
March 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28126323/mutations-of-the-lim-protein-ajuba-mediate-sensitivity-of-head-and-neck-squamous-cell-carcinoma-to-treatment-with-cell-cycle-inhibitors
#17
Ming Zhang, Ratnakar Singh, Shaohua Peng, Tuhina Mazumdar, Vaishnavi Sambandam, Li Shen, Pan Tong, Lerong Li, Nene N Kalu, Curtis R Pickering, Mitchell Frederick, Jeffrey N Myers, Jing Wang, Faye M Johnson
The genomic alterations identified in head and neck squamous cell carcinoma (HNSCC) tumors have not resulted in any changes in clinical care, making the development of biomarker-driven targeted therapy for HNSCC a major translational gap in knowledge. To fill this gap, we used 59 molecularly characterized HNSCC cell lines and found that mutations of AJUBA, SMAD4 and RAS predicted sensitivity and resistance to treatment with inhibitors of polo-like kinase 1 (PLK1), checkpoint kinases 1 and 2, and WEE1. Inhibition or knockdown of PLK1 led to cell-cycle arrest at the G2/M transition and apoptosis in sensitive cell lines and decreased tumor growth in an orthotopic AJUBA-mutant HNSCC mouse model...
April 28, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28111201/human-ipsc-derived-cerebral-organoids-model-cellular-features-of-lissencephaly-and-reveal-prolonged-mitosis-of-outer-radial-glia
#18
Marina Bershteyn, Tomasz J Nowakowski, Alex A Pollen, Elizabeth Di Lullo, Aishwarya Nene, Anthony Wynshaw-Boris, Arnold R Kriegstein
Classical lissencephaly is a genetic neurological disorder associated with mental retardation and intractable epilepsy, and Miller-Dieker syndrome (MDS) is the most severe form of the disease. In this study, to investigate the effects of MDS on human progenitor subtypes that control neuronal output and influence brain topology, we analyzed cerebral organoids derived from control and MDS-induced pluripotent stem cells (iPSCs) using time-lapse imaging, immunostaining, and single-cell RNA sequencing. We saw a cell migration defect that was rescued when we corrected the MDS causative chromosomal deletion and severe apoptosis of the founder neuroepithelial stem cells, accompanied by increased horizontal cell divisions...
April 6, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28056995/aldehyde-dehydrogenase-2-activation-and-coevolution-of-its-%C3%AE%C2%B5pkc-mediated-phosphorylation-sites
#19
Aishwarya Nene, Che-Hong Chen, Marie-Hélène Disatnik, Leslie Cruz, Daria Mochly-Rosen
BACKGROUND: Mitochondrial aldehyde dehydrogenase 2 (ALDH2) is a key enzyme for the metabolism of many toxic aldehydes such as acetaldehyde, derived from alcohol drinking, and 4HNE, an oxidative stress-derived lipid peroxidation aldehyde. Post-translational enhancement of ALDH2 activity can be achieved by serine/threonine phosphorylation by epsilon protein kinase C (εPKC). Elevated ALDH2 is beneficial in reducing injury following myocardial infarction, stroke and other oxidative stress and aldehyde toxicity-related diseases...
January 5, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28042706/do-cdk4-6-inhibitors-have-potential-as-targeted-therapeutics-for-squamous-cell-cancers
#20
REVIEW
Nene N Kalu, Faye M Johnson
Introduction Dysregulation of cell cycle progression has an established link to neoplasia and cancer progression. Components of the cyclin D-CDK4/6-INK4-Rb pathway are frequently altered in squamous cell carcinomas (SCCs) by diverse mechanisms, including viral oncogene-induced degradation, mutation, deletion, and amplification. Activation of the CDK4/6 pathway may predict response to CDK4/6 inhibitors and provide clinical biomarkers. Recently, the CDK4/6 inhibitor palbociclib showed clinical efficacy in combination with cetuximab in HNSCC patients...
February 2017: Expert Opinion on Investigational Drugs
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