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https://www.readbyqxmd.com/read/28087491/dynamics-of-bacterial-class-bacilli-in-the-deepest-valley-lake-of-kashmir-the-manasbal-lake
#1
Sana Shafi, Azra N Kamili, Manzoor A Shah, Suhaib A Bandh, Rubiya Dar
In recognition of the importance of bacteria as ecological indicators of the aquatic systems a comprehensive and systematic analysis was carried out on Manasbal Lake, the deepest spring fed valley lake of Kashmir. The main objective envisaged was to analyze bacterial community composition (BCC) and for this purpose systematic and regular sampling of waters from ten different sampling stations, predetermined in the Lake according to differences in degree of human interference and also as zones of special ecological interests were selected...
January 10, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28081215/genome-wide-association-studies-of-multiple-keratinocyte-cancers
#2
Luba M Pardo, Wen-Qing Li, Shih-Jen Hwang, Joris A C Verkouteren, Albert Hofman, André G Uitterlinden, Peter Kraft, Constance Turman, Jiali Han, Eunyoung Cho, Joanne M Murabito, Daniel Levy, Abrar A Qureshi, Tamar Nijsten
There is strong evidence for a role of environmental risk factors involved in susceptibility to develop multiple keratinocyte cancers (mKCs), but whether genes are also involved in mKCs susceptibility has not been thoroughly investigated. We investigated whether single nucleotide polymorphisms (SNPs) are associated with susceptibility for mKCs. A genome-wide association study (GWAS) of 1,666 cases with mKCs and 1,950 cases with single KC (sKCs; controls) from Harvard cohorts (the Nurses' Health Study [NHS], NHS II, and the Health Professionals Follow-Up Study) and the Framingham Heart Study was carried-out using over 8 million SNPs (stage-1)...
2017: PloS One
https://www.readbyqxmd.com/read/28075332/-i-ab-initio-i-calculations-of-the-elastic-and-thermodynamic-properties-of-gold-under-pressure
#3
Nikolai A Smirnov
The paper presents first-principles FP-LMTO calculations on the relative stability of $fcc$, $bcc$, $hcp$ and $dhcp$ gold under pressure. They were done in Local Density Approximation (LDA), as well as in Generalized Gradient Approximation (GGA) with and without spin-orbit interaction. Phonon spectra for the considered gold structures were obtained from LDA calculations within linear response theory and the contribution of lattice vibrations to the free energy of the system was determined in quasiharmonic approximation...
January 11, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28067036/synthetically-tuned-atomic-ordering-in-pdcu-nanoparticles-with-enhanced-catalytic-activity-towards-solvent-free-benzylamine-oxidation
#4
Vijaykumar S Marakatti, Saurav Ch Sarma, Boby Joseph, Dipanjan Banerjee, Sebastian C Peter
Synthesis of ordered compounds with nano size is of particular interest for tuning the surface properties with enhanced activity and selectivity towards various important industrial catalytic processes. In this work, we have synthesized ordered PdCu nanoparticles as highly efficient catalyst for the solvent free aerobic oxidation of benzylamine. The PdxCu1-x catalysts with different chemical compositions (x = 0, 0.25, 0.4, 0.5, 0.6, 0.75, 1) were prepared by polyol method using NaBH4 as a reducing agent and were well characterized by XRD, ICP-OES, XPS, TEM-EDAX and XAFS...
January 9, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28063432/is-sodium-a-superconductor-under-high-pressure
#5
Roxanne Tutchton, Xiaojia Chen, Zhigang Wu
Superconductivity has been predicted or measured for most alkali metals under high pressure, but the computed critical temperature (Tc) of sodium (Na) at the face-centered cubic (fcc) phase is vanishingly low. Here we report a thorough, first-principles investigation of superconductivity in Na under pressures up to 260 GPa, where the metal-to-insulator transition occurs. Linear-response calculations and density functional perturbation theory were employed to evaluate phonon distributions and the electron-phonon coupling for bcc, fcc, cI16, and tI19 Na...
January 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28061805/factors-influencing-contraceptive-use-and-non-use-among-women-of-advanced-reproductive-age-in-nigeria
#6
Bola Lukman Solanke
BACKGROUND: Factors influencing contraceptive use and non-use among women of advanced reproductive age have been insufficiently researched in Nigeria. This study examines factors influencing contraceptive use and non-use among women of advanced reproductive age in Nigeria. METHODS: Secondary data were pooled and extracted from 2008 and 2013 Nigeria Demographic and Health Surveys (NDHS). The weighted sample size was 14,450 women of advanced reproductive age. The dependent variable was current contraceptive use...
January 7, 2017: Journal of Health, Population, and Nutrition
https://www.readbyqxmd.com/read/28061538/palliative-radiotherapy-for-skin-malignancies
#7
Winston Vuong, Jessica Lin, Randy L Wei
Palliative radiotherapy (PRT) improves patient quality of life (QoL) through alleviating cancer-associated symptoms such as pain, bleeding, and ulceration. Palliative management of patients with skin malignancies requires consideration of cosmetic and psychosocial outcomes as QoL measures. In this review, we highlight the current literature and advances in the use of PRT for patients with the three most commonly encountered forms of skin malignancies: basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and melanoma...
December 19, 2016: Annals of Palliative Medicine
https://www.readbyqxmd.com/read/28061361/comparison-of-the-retroauricular-approach-and-transcervical-approach-for-excision-of-a-second-brachial-cleft-cyst
#8
Dongbin Ahn, Gil Joon Lee, Jin Ho Sohn
PURPOSE: Although a retroauricular (RA) approach has been proposed for excision of a second brachial cleft cyst (BCC), no studies have performed a direct comparison of the results of the RA approach and those of the conventional transcervical approach. We evaluated the surgical outcomes of the RA approach under direct vision and demonstrate its benefits compared with the conventional transcervical approach for excision of a second BCC. PATIENTS AND METHODS: From January 2012 to May 2016, we enrolled 30 consecutive patients with a second BCC who underwent surgical excision as a primary treatment into the present prospective case-control study...
December 15, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28058108/basosquamous-carcinoma-appearance-and-reality
#9
Rakesh L Anand, Damian Collins, Anna Chapman
Basosquamous carcinoma (BsC) is a controversial entity and both a diagnostic and therapeutic challenge. BsC has mixed histopathological characteristics of both basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). BCC and SCC display characteristic histopathology and behaviour; on the other hand, BsC is a rare tumour, which has variable morphology and displays less predictable behaviour. An early diagnosis of BsC is important due to the particularly aggressive nature of the tumour, the increased likelihood of recurrence and the potential for metastasis...
January 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28052685/occurrence-of-malignancies-after-kidney-transplantation-in-adults-slovak-multicenter-experience
#10
Z Zilinska, M Sersenova, M Chrastina, J Breza Sr, L Bena, T Baltesova, A Jurcina, R Roland, E Lackova, M Cellar, L Laca, I Dedinska
Malignancies are one of the three major causes of renal recipient´s death with a functioning graft after cardiovascular diseases and infections. Among the variety of risk factors, including conventional and specific to transplant recipients, the duration of immunosuppressive therapy, the intensity of therapy, and the type of immunosuppressive agent all have an impact on development of post-transplant malignancy. The aim of our retrospective study was to document the incidence, the type of malignancies, the patient/graft survival in the group of kidney transplant recipients in Slovak Republic, and to identify the factors which influenced the outcome...
January 5, 2017: Neoplasma
https://www.readbyqxmd.com/read/28050325/the-importance-of-frozen-section-controlled-excision-in-recurrent-basal-cell-carcinoma-of-the-eyelids
#11
Berna Şahan, Ferda Çiftçi, Ferda Özkan, Vildan Öztürk
OBJECTIVES: To show the importance of frozen section-controlled excision to avoid the re-recurrence of recurrent basal cell carcinoma (BCC) of the eyelids. MATERIALS AND METHODS: Thirty-five cases who underwent eyelid tumor excision in different centers and were admitted to our clinic with recurrent eyelid tumors. Recurrent tumors were resected by excision 1-2 mm from the tumor's visible margin and sent to pathology for frozen section examination. Eyelid reconstructions with flap and graft were performed after confirming that the surgical margins were negative...
December 2016: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28047697/su-f-t-661-dependence-of-gold-nano-particles-cluster-morphology-on-dose-enhancement-of-photon-radiation-therapy-apply-for-radiation-biology-effect
#12
S Ahn, K Chung, Y Han, H Park
PURPOSE: Injected gold nano particles (GNPs) to a body for dose enhancement are known to form in the tumorcell cluster morphology. We investigated the dependence of dose enhancement on the morphology characteristic with an approximated morphology model by using Monte Carlo simulations. METHODS: For MC simulation, TOPAS version 2.0P-03 was used. GNP cluster morphology was approximated as a body center cubic(BCC) model by placing 8 GNPs at the corner and one at the center of cube with length from 2...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046077/an-oxygen-sensing-two-component-system-in-the-burkholderia-cepacia-complex-regulates-biofilm-intracellular-invasion-and-pathogenicity
#13
Matthew M Schaefers, Tiffany L Liao, Nicole M Boisvert, Damien Roux, Deborah Yoder-Himes, Gregory P Priebe
Burkholderia dolosa is a member of the Burkholderia cepacia complex (BCC), which is a group of bacteria that cause chronic lung infection in patients with cystic fibrosis (CF) and can be associated with outbreaks carrying high morbidity and mortality. While investigating the genomic diversity of B. dolosa strains collected from an outbreak among CF patients, we previously identified fixL as a gene showing signs of strong positive selection. This gene has homology to fixL of the rhizobial FixL/FixJ two-component system...
January 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28039770/body-mass-index-height-and-early-onset-basal-cell-carcinoma-in-a-case-control-study
#14
Yanchang Zhang, Brenda Cartmel, Courtney C Choy, Annette M Molinaro, David J Leffell, Allen E Bale, Susan T Mayne, Leah M Ferrucci
INTRODUCTION: Basal cell carcinoma (BCC) is the most common malignancy in the US. Body mass index (BMI) and height have been associated with a variety of cancer types, yet the evidence regarding BCC is limited. Therefore, we evaluated BMI and height in relation to early-onset BCC (under age 40) and explored the potential role of ultraviolet (UV) radiation exposure and estrogen-related exposures in the BMI-BCC relationship. METHODS: BCC cases (n=377) were identified through a central dermatopathology facility in Connecticut...
December 28, 2016: Cancer Epidemiology
https://www.readbyqxmd.com/read/28038310/tetrahedral-arrangements-of-perylene-bisimide-columns-via-supramolecular-orientational-memory
#15
Dipankar Sahoo, Mihai Peterca, Emad Aqad, Benjamin E Partridge, Paul A Heiney, Robert Graf, Hans W Spiess, Xiangbing Zeng, Virgil Percec
Chiral, shape, and liquid crystalline memory effects are well known to produce commercial macroscopic materials with important applications as springs, sensors, displays, and memory devices. A supramolecular orientational memory effect that provides complex nanoscale arrangements was only recently reported. This supramolecular orientational memory was demonstrated to preserve the molecular orientation and packing within supramolecular units of a self-assembling cyclotriveratrylene crown at the nanoscale upon transition between its columnar hexagonal and Pm3n cubic periodic arrays...
December 30, 2016: ACS Nano
https://www.readbyqxmd.com/read/28030717/pathologic-evaluation-of-skin-tumors-with-ex-vivo-dermoscopy-with-derm-dotting
#16
Marc Haspeslagh, Isabelle Hoorens, Nele Degryse, Ine De Wispelaere, Annemarie Degroote, Sarah Van Belle, Jan Verboven, Katrien Vossaert, Fabio Facchetti, Jo Van Dorpe, Sofie De Schepper, Lieve Brochez
Importance: Ex vivo dermoscopy (EVD) with derm dotting (DD) improves clinicopathologic correlation and the quality of diagnosis in skin tumors. Objective: To compare the diagnostic performance of the standard method of skin biopsy processing with the practice of EVD with DD. Design, Setting, and Participants: This retrospective study compares the diagnostic performance in 6526 skin biopsy specimens examined from 2008 to 2010 with a standard method of processing with 8584 biopsy specimens examined in 2015 with EVD and DD...
December 28, 2016: JAMA Dermatology
https://www.readbyqxmd.com/read/28030567/tumor-derived-suppressor-of-fused-mutations-reveal-hedgehog-pathway-interactions
#17
Nicole M Urman, Amar Mirza, Scott X Atwood, Ramon J Whitson, Kavita Y Sarin, Jean Y Tang, Anthony E Oro
The Hedgehog pathway is a potent regulator of cellular growth and plays a central role in the development of many cancers including basal cell carcinoma (BCC). The majority of BCCs arise from mutations in the Patched receptor resulting in constitutive activation of the Hedgehog pathway. Secondary driver mutations promote BCC oncogenesis and occur frequently due to the high mutational burden resulting from sun exposure of the skin. Here, we uncover novel secondary mutations in Suppressor of Fused (SUFU), the major negative regulator of the Hedgehog pathway...
2016: PloS One
https://www.readbyqxmd.com/read/28028856/british-association-of-dermatologists-national-audit-on-nonmelanoma-skin-cancer-excision-2014
#18
D J Keith, D A R de Berker, A P Bray, S T Cheung, A Brain, M F Mohd Mustapa
BACKGROUND: Diagnosis and management of nonmelanoma skin cancer (NMSC) represents a large part of the dermatology workload, and complete excision is a required surgical standard for treatment. AIM: To conduct an audit of the surgical practice for the treatment of NMSC by dermatologists in the UK. METHODS: Data on 10 consecutive nonmicrographic excisions of nonmelanoma skin cancer by UK dermatologists. Data collected included site, preoperative diagnosis, histological diagnosis, proximity to previous scars, and histological deep and peripheral margins...
January 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28012234/hypoxia-promotes-the-phenotypic-change-of-aldehyde-dehydrogenase-activity-of-breast-cancer-stem-cells
#19
Akira Shiraishi, Kana Tachi, Nesrine Essid, Ikki Tsuboi, Masumi Nagano, Toshiki Kato, Toshiharu Yamashita, Hiroko Bando, Hisato Hara, Osamu Ohneda
Stable breast cancer cell (BCC) lines are valuable tools for the identification of breast cancer stem cell (BCSC) phenotypes that develop in response to several stimuli as well as for studying the basic mechanisms associated with the initiation and maintenance of BCSCs. However, the characteristics of individual, BCC-derived BCSCs varies and these cells show distinct phenotypes depending on the different BCSC markers used for their isolation. Aldehyde dehydrogenase (ALDH) activity is just such a recognized biomarker of BCSCs with a CD44(+) /CD24(-) phenotype...
December 23, 2016: Cancer Science
https://www.readbyqxmd.com/read/28011467/clinical-implications-of-high-mobility-group-box-1-hmgb1-and-the-receptor-for-advanced-glycation-end-products-rage-in-cutaneous-malignancy-a-systematic-review
#20
REVIEW
Austin Huy Nguyen, Shannon Q Detty, Devendra K Agrawal
Inflammation and the immune system play a role in the development and progression of melanoma, basal cell carcinoma (BCC), and squamous cell carcinoma (SCC). The pro-inflammatory and tumor-promoting effects of the high-mobility group box-1 (HMGB1) protein and the receptor for advanced glycation end products (RAGE) have been investigated in these cutaneous malignancies. The clinical implication of these molecules is not fully described. The National Library of Medicine database was searched for articles addressing the clinical relevance of HMGB1 and RAGE in melanoma, BCC, and SCC...
January 2017: Anticancer Research
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