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https://www.readbyqxmd.com/read/28408739/strongly-bound-excitons-in-anatase-tio2-single-crystals-and-nanoparticles
#1
E Baldini, L Chiodo, A Dominguez, M Palummo, S Moser, M Yazdi-Rizi, G Auböck, B P P Mallett, H Berger, A Magrez, C Bernhard, M Grioni, A Rubio, M Chergui
Anatase TiO2 is among the most studied materials for light-energy conversion applications, but the nature of its fundamental charge excitations is still unknown. Yet it is crucial to establish whether light absorption creates uncorrelated electron-hole pairs or bound excitons and, in the latter case, to determine their character. Here, by combining steady-state angle-resolved photoemission spectroscopy and spectroscopic ellipsometry with state-of-the-art ab initio calculations, we demonstrate that the direct optical gap of single crystals is dominated by a strongly bound exciton rising over the continuum of indirect interband transitions...
April 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/28399802/efficacy-and-completion-rates-of-rifapentine-and-isoniazid-3hp-compared-to-other-treatment-regimens-for-latent-tuberculosis-infection-a-systematic-review-with-network-meta-analyses
#2
Christopher Pease, Brian Hutton, Fatemeh Yazdi, Dianna Wolfe, Candyce Hamel, Pauline Quach, Becky Skidmore, David Moher, Gonzalo G Alvarez
BACKGROUND: We conducted a systematic review and network meta-analysis (NMA) to examine the efficacy and completion rates of treatments for latent tuberculosis infection (LTBI). While a previous review found newer, short-duration regimens to be effective, several included studies did not confirm LTBI, and analyses did not account for variable follow-up or assess completion. METHODS: We searched MEDLINE, Embase, CENTRAL, PubMed, and additional sources to identify RCTs in patients with confirmed LTBI that involved a regimen of interest and reported on efficacy or completion...
April 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28397198/the-2549-insertion-deletion-polymorphism-of-vegf-gene-associated-with-uterine-leiomyoma-susceptibility-in-women-from-southeastern-iran
#3
Farshid Keshavarzi, Saeedeh Salimi, Abbas Mohammadpour-Gharehbagh, Batool Teimoori, Atefeh Yazdi, Farzaneh Farajian-Mashhadi, Minoo Yaghmaei, Mojgan Mokhtari
OBJECTIVES: Vascular endothelial growth factor (VEGF) is an important angiogenic factor that regulates angiogenesis and mediates sex steroid-induced cell growth. The present study investigated the association of VEGF gene-2578C/A (rs699947) and -2549 insertion/deletion polymorphisms in the promoter region of VEGF-A gene and uterine leiomyoma susceptibility in Southeast of Iran. MATERIAL AND METHODS: One hundred and fifty five women with uterine leiomyoma and 157 age, BMI, and ethnicity matched healthy women were enrolled in this study...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28384703/mapping-breast-cancer-blood-flow-index-composition-and-metabolism-in-a-human-subject-using-combined-diffuse-optical-spectroscopic-imaging-and-diffuse-correlation-spectroscopy
#4
Hossein S Yazdi, Thomas D O'Sullivan, Anais Leproux, Brian Hill, Amanda Durkin, Seraphim Telep, Jesse Lam, Siavash S Yazdi, Alice M Police, Robert M Carroll, Freddie J Combs, Tomas Strömberg, Arjun G Yodh, Bruce J Tromberg
No abstract text is available yet for this article.
April 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28384133/vital-signs-update-on-zika-virus-associated-birth-defects-and-evaluation-of-all-u-s-infants-with-congenital-zika-virus-exposure-u-s-zika-pregnancy-registry-2016
#5
Megan R Reynolds, Abbey M Jones, Emily E Petersen, Ellen H Lee, Marion E Rice, Andrea Bingham, Sascha R Ellington, Nicole Evert, Sarah Reagan-Steiner, Titilope Oduyebo, Catherine M Brown, Stacey Martin, Nina Ahmad, Julu Bhatnagar, Jennifer Macdonald, Carolyn Gould, Anne D Fine, Kara D Polen, Heather Lake-Burger, Christina L Hillard, Noemi Hall, Mahsa M Yazdy, Karnesha Slaughter, Jamie N Sommer, Alys Adamski, Meghan Raycraft, Shannon Fleck-Derderian, Jyoti Gupta, Kimberly Newsome, Madelyn Baez-Santiago, Sally Slavinski, Jennifer L White, Cynthia A Moore, Carrie K Shapiro-Mendoza, Lyle Petersen, Coleen Boyle, Denise J Jamieson, Dana Meaney-Delman, Margaret A Honein
BACKGROUND: In collaboration with state, tribal, local, and territorial health departments, CDC established the U.S. Zika Pregnancy Registry (USZPR) in early 2016 to monitor pregnant women with laboratory evidence of possible recent Zika virus infection and their infants. METHODS: This report includes an analysis of completed pregnancies (which include live births and pregnancy losses, regardless of gestational age) in the 50 U.S. states and the District of Columbia (DC) with laboratory evidence of possible recent Zika virus infection reported to the USZPR from January 15 to December 27, 2016...
April 7, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28383142/auraptene-induces-apoptosis-via-myeloid-cell-leukemia-1-mediated-activation-of-caspases-in-pc3-and-du145-prostate-cancer-cells
#6
Jae Chul Lee, Eun Ah Shin, Bonglee Kim, Bo-Im Kim, Mahsa Chitsazian-Yazdi, Mehrdad Iranshahi, Sung-Hoon Kim
Although auraptene, a prenyloxy coumarin from Citrus species, was known to have anti-oxidant, anti-bacterial, antiinflammatory, and anti-tumor activities, the underlying anti-tumor mechanism of auraptene in prostate cancers is not fully understood to date. Thus, in the present study, we have investigated the anti-tumor mechanism of auraptene mainly in PC3 and DU145 prostate cancer cells, because auraptene suppressed the viability of androgen-independent PC3 and DU145 prostate cancer cells better than androgen-sensitive LNCaP cells...
April 6, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28370527/continuous-one-step-synthesis-of-porous-m-xf6-based-metal-organic-and-hydrogen-bonded-frameworks
#7
Vincent Guillerm, Luis Garzon-Tóvar, Amirali Yazdi, Inhar Imaz, Jordi Juanhuix, Daniel Maspoch
Metal-organic frameworks (MOFs) built up from connecting M-XF6 pillars through N-donor ligands are among the most attractive adsorbents and separating agents for CO₂ and hydrocarbons today. Here, we show the continuous, one-step spray-drying synthesis of several members of this isoreticular MOF family varying the anionic pillar (X = [SiF₆]²- and [TiF₆]²-), the N-donor organic ligand (pyrazine and 4,4'-bipyridine) and the metal ion (M = Co, Cu and Zn). This synthetic method allows obtaining them in the form of spherical superstructures assembled from nanosized crystals...
March 30, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28351084/the-effect-of-vitamin-d-supplementation-on-the-androgenic-profile-in-patients-with-polycystic-ovary-syndrome-a-systematic-review-and-meta-analysis-of-clinical-trials
#8
Maryam Azadi-Yazdi, Azadeh Nadjarzadeh, Hossein Khosravi-Boroujeni, Amin Salehi-Abargouei
It is suggested that vitamin D status is associated with androgenic profile in women with polycystic ovarian syndrome (PCOS). Although several clinical trials are known in this regard, the results were inconsistent. Therefore, this study was aimed to conduct a systematic review and meta-analysis of published clinical trials to elucidate the possible effect of vitamin D supplementation on the androgen levels in adult females with PCOS. PubMed, SCOPUS, and Google Scholar were searched to identify related articles published up to January 2017...
March 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28348721/geographical-disparities-in-the-health-of-iranian-women-health-outcomes-behaviors-and-health-care-access-indicators
#9
Mohsen Bayati, Vahid Yazdi Feyzabadi, Arash Rashidian
BACKGROUND: Women's health is a key factor affecting the health of the whole population. Tackling inequality in determinants of health is recognized as the main path toward reducing the inequality in health outcomes. This study aimed to analyze the provincial inequality in determinants of women's health and health care in Iran. METHODS: Using the Moss's model (2002) as a comprehensive framework of determinants of women's health, including "geopolitical environment," "culture, norms, sanctions," "women's roles in reproduction and production," "health-related mediators," and "health outcome" categories, we chose 13 indicators...
2017: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28345844/association-between-the-dna-repair-gene-xrcc3-rs861539-polymorphism-and-risk-of-osteosarcoma-a-systematic-review-and-meta-analysis
#10
Mohammad Reza Sobhan, Mohammad Forat Yazdi, Mahta Mazaheri, Masoud Zare Shehneh, Hossein Neamatzadeh
Objective: Although there are a few studies investigating the relation between X-Ray Repair Cross Complementing 3 (XRCC3) gene rs861539 polymorphism and osteosarcoma (OSA), the results are inconsistent. Therefore, we performed this systematic review and meta-analysis to clarify the associations between XRCC3 rs861539 polymorphism and OSA risk. Methods: We have retrieved published literature from PubMed, Google scholar, and ISI Web of Knowledge up to 25 January 2017. Odds ratios were pooled using either fixed-effects or random effects models...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28342155/-benefits-of-zoster-vaccination-in-older-patients
#11
K Meier, A S Yazdi
No abstract text is available yet for this article.
March 24, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28337921/resonant-coupling-between-molecular-vibrations-and-localized-surface-plasmon-resonance-of-faceted-metal-oxide-nanocrystals
#12
Ankit Agrawal, Ajay Singh, Sadegh Yazdi, Amita Singh, Gary K Ong, Karen Bustillo, Robert W Johns, Emilie Ringe, Delia J Milliron
Doped metal oxides are plasmonic materials that boast both synthetic and postsynthetic spectral tunability. They have already enabled promising smart window and optoelectronic technologies and have been proposed for use in surface enhanced infrared absorption spectroscopy (SEIRA) and sensing applications. Herein, we report the first step toward realization of the former utilizing cubic F and Sn codoped In2O3 nanocrystals (NCs) to couple to the C-H vibration of surface-bound oleate ligands. Electron energy loss spectroscopy is used to map the strong near-field enhancement around these NCs that enables localized surface plasmon resonance (LSPR) coupling between adjacent nanocrystals and LSPR-molecular vibration coupling...
March 24, 2017: Nano Letters
https://www.readbyqxmd.com/read/28335326/tuning-the-emission-energy-of-chemically-doped-graphene-quantum-dots
#13
Noor-Ul-Ain, Martin O Eriksson, Susann Schmidt, M Asghar, Pin-Cheng Lin, Per Olof Holtz, Mikael Syväjärvi, G Reza Yazdi
Tuning the emission energy of graphene quantum dots (GQDs) and understanding the reason of tunability is essential for the GOD function in optoelectronic devices. Besides material-based challenges, the way to realize chemical doping and band gap tuning also pose a serious challenge. In this study, we tuned the emission energy of GQDs by substitutional doping using chlorine, nitrogen, boron, sodium, and potassium dopants in solution form. Photoluminescence data obtained from (Cl- and N-doped) GQDs and (B-, Na-, and K-doped) GQDs, respectively exhibited red- and blue-shift with respect to the photoluminescence of the undoped GQDs...
November 3, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28319309/rhodium-catalyzed-enantioselective-isomerization-of-meso-oxabenzonorbornadienes-to-1-2-naphthalene-oxides
#14
Andy Yen, Ken-Loon Choo, Shabnam K Yazdi, Patrick T Franke, Robert Webster, Ivan Franzoni, Charles C J Loh, Amalia I Poblador-Bahamonde, Mark Lautens
Herein we describe a rhodium-catalyzed enantioselective isomerization of meso-oxabicyclic alkenes to 1,2-naphthalene oxides. These potentially useful building blocks can be accessed in moderate to excellent yields with impressive enantioselectivities. Additionally, experimental findings supported by preliminary computations suggest that ring-opening reactions of bridgehead disubstituted oxabicyclic alkenes proceed through the intermediacy of these epoxides and may point to a kinetically and thermodynamically favored reductive elimination as the origin for the observed enantioselectivities...
March 20, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28290522/nutritional-control-of-il-23-th17-mediated-autoimmune-disease-through-ho-1-stat3-activation
#15
Jürgen Brück, Julia Holstein, Ivana Glocova, Ursula Seidel, Julia Geisel, Toshio Kanno, Jin Kumagai, Naoko Mato, Stephan Sudowe, Katja Widmaier, Tobias Sinnberg, Amir S Yazdi, Franziska C Eberle, Kiyoshi Hirahara, Toshinori Nakayama, Martin Röcken, Kamran Ghoreschi
The nutritional curcumin (CUR) is beneficial in cell-mediated autoimmune diseases. The molecular mechanisms underlying this food-mediated silencing of inflammatory immune responses are poorly understood. By investigating antigen-specific immune responses we found that dietary CUR impairs the differentiation of Th1/Th17 cells in vivo during encephalomyelitis and instead promoted Th2 cells. In contrast, feeding CUR had no inhibitory effect on ovalbumin-induced airway inflammation. Mechanistically, we found that CUR induces an anti-inflammatory phenotype in dendritic cells (DC) with enhanced STAT3 phosphorylation and suppressed expression of Il12b and Il23a...
March 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28287805/mental-health-survey-of-the-iranian-adult-population-in-2015
#16
Ahmad Ali Noorbala, Soghrat Faghihzadeh, Koorosh Kamali, Seyed Abbas Bagheri Yazdi, Ahmad Hajebi, Mir Taher Mousavi, Shahin Akhondzadeh, Elham Faghihzadeh, Banafshe Nouri
BACKGROUND: Mental disorders influence people with a high prevalence and exert remarkable burden on community members. This study was carried out aiming to assess mental health status within the age range category of 15 and above in the Islamic Republic of Iran. METHODS: The statistical population of this cross-sectional survey consisted of residents of urban and rural areas in Iranian provinces. An estimated sample size of 36000 people was chosen using systematic random sampling and the cluster method...
March 2017: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/28286608/meta-analysis-of-gene-expression-profiles-in-acute-promyelocytic-leukemia-reveals-involved-pathways
#17
Mahdi Jalili, Ali Salehzadeh-Yazdi, Saeed Mohammadi, Marjan Yaghmaie, Ardeshir Ghavamzadeh, Kamran Alimoghaddam
Background: Acute promyelocytic leukemia (APL) is a unique subtype of acute leukemia. APL is a curable disease; however, drug resistance, early mortality, disease relapse and treatment-related complications remain challenges in APL patient management. One issue underlying these challenges is that the molecular mechanisms of the disease are not sufficiently understood. Materials and Methods: In this study, we performed a meta-analysis of gene expression profiles derived from microarray experiments and explored the background of disease by functional and pathway analysis...
January 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/28285515/seroprevalence-of-toxoplasma-gondii-among-hiv-patients-in-jahrom-southern-iran
#18
Hassan Rezanezhad, Fateme Sayadi, Enayatollah Shadmand, Seyed Dawood Mousavi Nasab, Hadi Rezaei Yazdi, Kavous Solhjoo, Akbar Kazemi, Monireh Maleki, Abbas Ahmadi Vasmehjani
Toxoplasma gondii is an important opportunistic agent especially in immunocompromised hosts and can cause significant morbidity and mortality. Hence, detection and monitoring of anti-Toxoplasma antibodies are of a great interest in HIV-infected patients. A study on the prevalence of toxoplasmosis and associated risk factors was carried out among HIV-infected patients in Jahrom, southern Iran. The prevalence of anti-Toxoplasma IgG antibodies was 21.1% in HIV-infected patients by ELISA. PCR was performed on all of the samples, and 1 of the blood samples was positively detected...
February 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28273338/prevalence-of-type-i-sensitization-to-alpha-gal-in-forest-service-employees-and-hunters
#19
Jörg Fischer, Elena Lupberger, Johanna Hebsaker, Gunnar Blumenstock, Elisabeth Aichinger, Amir S Yazdi, Doris Reick, Rainer Oehme, Tilo Biedermann
BACKGROUND: The production of IgE molecules specific to the carbohydrate galactose-α-1,3-galactose (alpha-gal) is known to induce delayed anaphylaxis against mammalian meat. Tick bites constitute the primary sensitization source, as ticks transfer alpha-gal in their saliva to a host during a bite. The reported prevalence of alpha-gal-specific IgE (alpha-gal-sIgE) positivity varies between different populations from diverse geographic regions. OBJECTIVE: To investigate the prevalence of alpha-gal-sIgE positivity in a population of forest service employees who are highly exposed to ticks in comparison with a residential population and a historic sample...
March 8, 2017: Allergy
https://www.readbyqxmd.com/read/28267334/correction-to-creation-of-high-mobility-two-dimensional-electron-gases-via-strain-induced-polarization-at-an-otherwise-nonpolar-complex-oxide-interface
#20
Yunzhong Chen, Felix Trier, Takeshi Kasama, Dennis V Christensen, Nicolas Bovet, Zoltan I Balogh, Han Li, Karl Tor Sune Thydén, Wei Zhang, Sadegh Yazdi, Poul Norby, Nini Pryds, Søren Linderoth
No abstract text is available yet for this article.
March 7, 2017: Nano Letters
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