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https://www.readbyqxmd.com/read/29341232/histological-features-and-outcome-of-inverted-type-a-melanocytic-nevi
#1
Soheil S Dadras, Jun Lu, Artur Zembowicz, Thomas J Flotte, Martin C Mihm
The presence of enlarged epithelioid/spindled nests located deep in the reticular dermis of a biphasic melanocytic neoplasm can mimic melanoma arising in a preexisting nevus, causing over-interpretation of malignancy. We aimed to define the clinicopathologic significance of epithelioid/spindled nests in melanocytic nevi. Retrospectively using clinical and histologic information, we characterized 121 patients with a single lesion showing epithelioid/spindled melanocytes in the reticular dermis or subcutaneous fat, surrounded by melanophages, sometimes blending in with the adnexa...
January 17, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29324604/preterm-birth-and-gestational-length-in-four-race-nativity-groups-including-somali-americans
#2
Emily A Oliver, Mark Klebanoff, Lina Yossef-Salameh, Reena Oza-Frank, Soheil Moosavinasab, Patricia Reagan, Louis Muglia, Catalin S Buhimschi, Irina A Buhimschi
OBJECTIVE: To compare preterm birth rates and gestational length in four race-nativity groups including Somali Americans. METHODS: Using a retrospective cohort study design of Ohio birth certificates, we analyzed all singleton births between 2000 and 2015 from four groups of women categorized as U.S.-born, non-Hispanic white (USBW), U.S.-born, non-Hispanic black (USBB), African-born black (ABB, primarily of West African birth country), and Somalia-born (SB). An algorithm trained on maternal names was used to confirm Somali ethnicity...
January 9, 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29322095/low-threshold-parametric-oscillation-in-organically-modified-microcavities
#3
Xiaoqin Shen, Rigoberto Castro Beltran, Vinh M Diep, Soheil Soltani, Andrea M Armani
Coherent frequency generators are an enabling platform in basic science and applied technology. Originally reliant on high-power lasers, recently comb generation has been demonstrated in ultrahigh-Q microcavities. The large circulating intensity within the cavity results in strong light-matter interaction, giving rise to Kerr parametric oscillations for comb generation. However, the comb generation threshold is limited by competing nonlinear effects within the cavity material and low intrinsic material Kerr coefficients...
January 2018: Science Advances
https://www.readbyqxmd.com/read/29320902/cd33-splicing-snp-regulates-expression-levels-of-cd33-in-normal-regenerating-monocytes-in-aml-patients
#4
Jatinder K Lamba, Andrew P Voigt, Lata Chauhan, Miyoung Shin, Richard Aplenc, Lisa Eidenschink Brodersen, Alan S Gamis, Soheil Meshinchi, Michael R Loken
No abstract text is available yet for this article.
January 10, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29319136/the-use-of-99mtc-phytate-for-assessment-the-protective-effect-of-vitamin-e-against-hepatotoxicity-induced-by-methotrexat-in-rat
#5
Hossein Amirfakhrian, Seyed Mohammad Abedi, Hossein Sadeghi, Soheil Azizi, Seyed Jalal Hosseinimehr
In this study, we investigated the protective effect of vitamin E against methotrexate (MTX)-induced hepatotoxicity by quantitative liver 99mTc-phytate uptake and liver imaging and to compare its effect with histopathology in rat. Rats were divided into five groups as control, solvent, Vit E (100 mg/kg), MTX (20 mg/kg), Vit E + MTX and. Vit E was intraperitoneally administrated for 17 days before MTX injection and continued for 4 days. 99mTc-phytate was injected through the tail of rats after the drug administration...
January 10, 2018: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/29305873/on-the-decidability-of-population-size-histories-from-finite-allele-frequency-spectra
#6
Soheil Baharian, Simon Gravel
Understanding the historical events that shaped current genomic diversity has applications in historical, biological, and medical research. However, the amount of historical information that can be inferred from genetic data is finite, which leads to an identifiability problem. For example, different historical processes can lead to identical distribution of allele frequencies. This identifiability issue casts a shadow of uncertainty over the results of any study which uses the frequency spectrum to infer past demography...
January 3, 2018: Theoretical Population Biology
https://www.readbyqxmd.com/read/29243685/the-efficacy-of-short-6-mm-dental-implants-with-a-novel-thread-design
#7
Soheil Bechara, Tatjana Nimčenko, Ričardas Kubilius
OBJECTIVE: To assess efficacy of short (6 mm) implants with a novel macrostructure and thread design placed in a compromised bone situations of edentulous posterior regions of maxilla (3-4 mm of bone height under sinus floor) as compared to results of clinical situations treated with simultaneous maxillary sinus grafting and placement of long (≥10 mm) implants of the same company. STUDY DESIGN: Clinical cases of conducted clinical study. PATIENTS AND METHODS: Patients with compromised bone height in edentulous posterior regions of maxilla were randomly divided into two groups...
2017: Stomatologija
https://www.readbyqxmd.com/read/29238480/maternal-recto-vaginal-colonization-in-term-and-preterm-deliveries
#8
Mostafa Javanian, Zahra Akbarian Rad, Mohsen Haghshenas Mojaveri, Azita Ghanbarpour Shiadeh, Soheil Ebrahimpour
Background and aim: Maternal recto-vaginal organisms are the main cause of early-onset sepsis in neonates. The aim of this study was to determine the most common organisms and compare maternal recto-vaginal colonization in term and preterm delivery. Methods: This cross-sectional study was done from October 2014 through October 2016 among participants referred to Ayatollah Rouhani Hospital in Babol, Northern Iran. All pregnant women within gestational age (GA) ≥ 26 weeks and labor pain were included in this study...
October 2017: Electronic Physician
https://www.readbyqxmd.com/read/29238380/static-and-kinetic-frictional-forces-of-silica-insert-ceramic-brackets-with-coated-archwires-in-artificial-saliva
#9
Mostafa Shahabi, Soheil Salari, Maryam Poosti, Mostafa Abtahi
Background: During sliding mechanics, the frictional force (FF) is an important counterforce to orthodontic tooth movement. The purpose of this in vitro study was to investigate the static and kinetic FFs of S silica-insert ceramic (SIC) brackets with Teflon-coated (TC) and conventional S stainless steel (SS) archwires. Materials and Methods: The target group of this study included 80 maxillary canine 0.022 inch slot SIC brackets. Forty SS brackets were used as the control...
November 2017: Dental Research Journal
https://www.readbyqxmd.com/read/29227476/the-molecular-landscape-of-pediatric-acute-myeloid-leukemia-reveals-recurrent-structural-alterations-and-age-specific-mutational-interactions
#10
Hamid Bolouri, Jason E Farrar, Timothy Triche, Rhonda E Ries, Emilia L Lim, Todd A Alonzo, Yussanne Ma, Richard Moore, Andrew J Mungall, Marco A Marra, Jinghui Zhang, Xiaotu Ma, Yu Liu, Yanling Liu, Jaime M Guidry Auvil, Tanja M Davidsen, Patee Gesuwan, Leandro C Hermida, Bodour Salhia, Stephen Capone, Giridharan Ramsingh, Christian Michel Zwaan, Sanne Noort, Stephen R Piccolo, E Anders Kolb, Alan S Gamis, Malcolm A Smith, Daniela S Gerhard, Soheil Meshinchi
We present the molecular landscape of pediatric acute myeloid leukemia (AML) and characterize nearly 1,000 participants in Children's Oncology Group (COG) AML trials. The COG-National Cancer Institute (NCI) TARGET AML initiative assessed cases by whole-genome, targeted DNA, mRNA and microRNA sequencing and CpG methylation profiling. Validated DNA variants corresponded to diverse, infrequent mutations, with fewer than 40 genes mutated in >2% of cases. In contrast, somatic structural variants, including new gene fusions and focal deletions of MBNL1, ZEB2 and ELF1, were disproportionately prevalent in young individuals as compared to adults...
December 11, 2017: Nature Medicine
https://www.readbyqxmd.com/read/29227214/human-reliability-assessment-in-a-99mo-99mtc-generator-production-facility-by-using-standardized-plant-analysis-risk-human-spar-h-technique
#11
Meysam Eyvazlou, Ali Dadashpour Ahangar, Azin Rahimi, Mohammad Reza Davarpanah, Seyed Soheil Sayyahi, Mehdi Mohebali
INTRODUCTION: Reducing human error is an important factor for enhancing safety protocols in various industries. Hence, the analysis of the likelihood of human error in nuclear industries such as radiopharmaceutical production facilities has become more essential. METHODS: This cross-sectional descriptive study was conducted to quantify the probability of human errors in a 99Mo/99mTc generator production facility in Iran. First, through expert interviews, the production process of 99Mo/99mTc generator was analyzed using hierarchical task analysis (HTA) method...
December 11, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/29226604/an-international-qualitative-study-of-functioning-in-autism-spectrum-disorder-using-the-world-health-organization-international-classification-of-functioning-disability-and-health-framework
#12
Soheil Mahdi, Marisa Viljoen, Tamara Yee, Melissa Selb, Nidhi Singhal, Omar Almodayfer, Mats Granlund, Petrus J de Vries, Lonnie Zwaigenbaum, Sven Bölte
This is the third in a series of four empirical studies designed to develop International Classification of Functioning, Disability and Health (ICF) Core Sets for Autism Spectrum Disorder (ASD). The present study aimed to describe functioning in ASD (as operationalized by the ICF) derived from the perspectives of diagnosed individuals, family members, and professionals. A qualitative study using focus groups and semi-structured interviews were conducted with 19 stakeholder groups (N = 90) from Canada, India, Saudi Arabia, South Africa, and Sweden...
December 11, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/29221054/is-the-rayleigh-sommerfeld-diffraction-always-an-exact-reference-for-high-speed-diffraction-algorithms
#13
Soheil Mehrabkhani, Thomas Schneider
In several areas of optics and photonics the behavior of the electromagnetic waves has to be calculated with the scalar theory of diffraction by computational methods. Many of these high-speed diffraction algorithms based on a fast-Fourier-transformation are approximations of the Rayleigh-Sommerfeld-diffraction (RSD) theory. In this article a novel sampling condition for the well-sampling of the Riemann integral of the RSD is demonstrated, the fundamental restrictions due to this condition are discussed, it will be demonstrated that the restrictions are completely removed by a sampling below the Abbe resolution limit and a very general unified approach for applying the RSD outside its sampling domain is given...
November 27, 2017: Optics Express
https://www.readbyqxmd.com/read/29218295/absence-of-the-labiomental-groove-a-common-but-preventable-unpleasant-aesthetic-problem-of-the-lower-lip-chin-burn-reconstruction
#14
Ali Akbar Mohammadi, Soheil Mohammadi
No abstract text is available yet for this article.
September 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/29215174/microscale-3d-printing-of-nanotwinned-copper
#15
Ali Behroozfar, Soheil Daryadel, S Reza Morsali, Salvador Moreno, Mahmoud Baniasadi, Rodrigo A Bernal, Majid Minary-Jolandan
Nanotwinned (nt)-metals exhibit superior mechanical and electrical properties compared to their coarse-grained and nanograined counterparts. nt-metals in film and bulk forms are obtained using physical and chemical processes including pulsed electrodeposition (PED), plastic deformation, recrystallization, phase transformation, and sputter deposition. However, currently, there is no process for 3D printing (additive manufacturing) of nt-metals. Microscale 3D printing of nt-Cu is demonstrated with high density of coherent twin boundaries using a new room temperature process based on localized PED (L-PED)...
December 7, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29209884/congenital-obstruction-of-foramen-of-monro-report-of-10-patients-and-literature-review
#16
Shima Shahjouei, Zohreh Habibi, Soheil Naderi, Ramin Mahmoodi, Farideh Nejat
INTRODUCTION: A wide spectrum of etiologies can obstruct foramen of Monro (FOM) and result in hydrocephalus. Congenital occlusion of FOM is a rare entity which may present either in childhood or in adulthood. METHODS: Between 2007 and 2016, we screened all pediatric patients with hydrocephalus of either one or both lateral ventricles. Congenital occlusion of FOM was confirmed in the absence of masses occupying the FOM, prenatal or postnatal central nervous system (CNS) infections, intraventricular hemorrhage, previous cerebral intervention, or associated CNS anomalies affecting the flow of cerebrospinal fluid (CSF)...
December 5, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29205480/a-z-gradient-array-for-simultaneous-multi-slice-excitation-with-a-single-band-rf-pulse
#17
Koray Ertan, Soheil Taraghinia, Alireza Sadeghi, Ergin Atalar
PURPOSE: Multi-slice radiofrequency (RF) pulses have higher specific absorption rates, more peak RF power, and longer pulse durations than single-slice RF pulses. Gradient field design techniques using a z-gradient array are investigated for exciting multiple slices with a single-band RF pulse. THEORY AND METHODS: Two different field design methods are formulated to solve for the required current values of the gradient array elements for the given slice locations...
December 4, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29203657/percolative-core-formation-in-planetesimals-enabled-by-hysteresis-in-metal-connectivity
#18
Soheil Ghanbarzadeh, Marc A Hesse, Maša Prodanović
The segregation of dense core-forming melts by porous flow is a natural mechanism for core formation in early planetesimals. However, experimental observations show that texturally equilibrated metallic melt does not wet the silicate grain boundaries and tends to reside in isolated pockets that prevent percolation. Here we use pore-scale simulations to determine the minimum melt fraction required to induce porous flow, the percolation threshold. The composition of terrestrial planets suggests that typical planetesimals contain enough metal to overcome this threshold...
December 4, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29200551/efficacy-of-transcranial-direct-current-stimulation-in-the-treatment-resistant-patients-who-suffer-from-severe-obsessive-compulsive-disorder
#19
Kiomars Najafi, Youssef Fakour, Homa Zarrabi, Abtin Heidarzadeh, Mohammadrasoul Khalkhali, Taiebeh Yeganeh, Hasan Farahi, Marziyeh Rostamkhani, Tahereh Najafi, Soheil Shabafroz, Mahdiyeh Pakdaman
Background: During the past years, significant efforts have been made to explain the biological backgrounds of obsessive-compulsive disorder (OCD). Cortical-subcortical and neurotransmitter models are used for explaining the symptoms of OCD, so our hypothesis is that brain's transcranial direct current stimulation (TDCS) can regulate the brain activities of the OCD patients. Thus, based on the mentioned issues, this research seeks to investigate the efficacy of TDCS in treatment-resistant patients who suffer from severe OCD...
September 2017: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/29172682/impact-of-specimen-heterogeneity-on-biomarkers-in-repository-samples-from-patients-with-acute-myeloid-leukemia-a-swog-report
#20
Era L Pogosova-Agadjanyan, Anna Moseley, Megan Othus, Frederick R Appelbaum, Thomas R Chauncey, I-Ming L Chen, Harry P Erba, John E Godwin, Min Fang, Kenneth J Kopecky, Alan F List, Galina L Pogosov, Jerald P Radich, Cheryl L Willman, Brent L Wood, Soheil Meshinchi, Derek L Stirewalt
INTRODUCTION: Current prognostic models for acute myeloid leukemia (AML) are inconsistent at predicting clinical outcomes for individual patients. Variability in the quality of specimens utilized for biomarker discovery and validation may contribute to this prognostic inconsistency. METHODS: We evaluated the impact of sample heterogeneity on prognostic biomarkers and methods to mitigate any adverse effects of this heterogeneity in 240 cryopreserved bone marrow and peripheral blood specimens from AML patients enrolled on SWOG (Southwest Oncology Group) trials...
November 27, 2017: Biopreservation and Biobanking
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