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https://www.readbyqxmd.com/read/28098971/photodiode-response-in-a-ch3nh3pbi3-ch3nh3sni3-heterojunction
#1
Massimo Spina, Laszlo Mihaly, Karoly Holczer, Bálint Náfrádi, Andrea Pisoni, László Forró, Endre Horváth
Here we report another surprising feature of this material family, the photo-tunability of the diode response of a heterojunction made of CH3NH3PbI3 and its close relative, CH3NH3SnI3. In the dark state the device behaves as a diode, with the Sn homologue acting as the "p" side. The junction is extremely sensitive to illumination. A complete reversal of the diode polarity, the first observation of its kind, is seen when the junction is exposed to red laser light of 25 mW/cm(2) or larger power density. This finding opens up the possibility for a novel class of opto-electronic devices...
January 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28096087/diffuse-large-b-cell-lymphoma-genotyping-on-the-liquid-biopsy
#2
Davide Rossi, Fary Diop, Elisa Spaccarotella, Sara Monti, Manuela Zanni, Silvia Rasi, Clara Deambrogi, Valeria Spina, Alessio Bruscaggin, Chiara Favini, Roberto Serra, Antonio Ramponi, Renzo Boldorini, Robin Foa', Gianluca Gaidano
Accessible and real-time genotyping for diagnostic, prognostic or treatment purposes is increasingly impelling in diffuse large B-cell lymphoma (DLBCL). Cell-free DNA (cfDNA) is shed into the blood by tumor cells undergoing apoptosis and can be used as source of tumor DNA for the identification of DLBCL mutations, clonal evolution, and genetic mechanisms of resistance. Here we aimed at tracking the basal DLBCL genetic profile and its modification upon treatment using plasma cfDNA. Ultra-deep targeted next generation sequencing of pre-treatment plasma cfDNA from DLBCL patients correctly discovered DLBCL-associated mutations that were represented in >20% of the alleles of the tumor biopsy with a >90% sensitivity and a ~100% specificity...
January 17, 2017: Blood
https://www.readbyqxmd.com/read/28078840/mast-cell-and-cancer-with-special-emphasis-on-il-37-an-anti-inflammatory-and-inhibitor-of-innate-immunity-new-frontiers
#3
F Carinci, G Lessiani, E Spinas, S K Kritas, G Ronconi, Al Caraffa, P Conti
Mast cells (MCs) are mediators of allergy and inflammation and participate in the growth of cancer cells. MCs can promote both neoangiogenesis and tumor growth. They increase in the stroma of certain tumors where they can be recruited by tumor-derived chemoattractants, such as monocyte chemotactic protein-1 (MCP-1), RANTES and stem cell factor (SCF) to selectively secrete inflammatory molecules including chemical mediators and cytokines (TNF, IL-6 and IL-1). However, MC differentiation pathways and heterogeneity in cancer are still poorly understood...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28072036/differential-effects-of-the-mek-inhibitor-sl327-on-the-acquisition-and-expression-of-ethanol-elicited-conditioned-place-preference-and-aversion-in-mice
#4
Michela Rosas, Simona Porru, Rosanna Longoni, Liliana Spina, Alessandra T Peana, Maria Collu, Elio Acquas
The involvement of mitogen-activating extracellular kinase (MEK) in place conditioning may vary depending on the motivational sign (positive or negative) and nature (pharmacological or nociceptive) of the unconditioned stimulus (US) and on the phase (acquisition or expression) of the learning process. This study investigated the role of MEK on the acquisition and expression of ethanol-elicited (given 2 g/kg) backward (preference, CPP) and forward (aversion, CPA) place conditioning. The MEK inhibitor SL327 (50 mg/kg for CPP, and 50 and 100 mg/kg for CPA) was administered to CD-1 mice 60 minutes before an ethanol dose (acquisition) or 60 minutes before the post-conditioning tests (expression)...
January 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28060526/effects-of-dual-monitor-computer-work-versus-laptop-work-on-cervical-muscular-and-proprioceptive-characteristics-of-males-and-females
#5
Amanda M Farias Zuniga, Julie N Côté
OBJECTIVE: The effects of performing a 90-minute computer task with a laptop versus a dual monitor desktop workstation were investigated in healthy young male and female adults. BACKGROUND: Work-related musculoskeletal disorders are common among computer (especially female) users. Laptops have surpassed desktop computer sales, and working with multiple monitors has also become popular. However, few studies have provided objective evidence on how they affect the musculoskeletal system in both genders...
December 1, 2016: Human Factors
https://www.readbyqxmd.com/read/28053589/nectar-secretion-dynamics-and-honey-production-potentials-of-some-major-honey-plants-in-saudi-arabia
#6
Nuru Adgaba, Ahmed Al-Ghamdi, Yilma Tadesse, Awraris Getachew, Awad M Awad, Mohammad J Ansari, Ayman A Owayss, Seif Eldin A Mohammed, Abdulaziz S Alqarni
The contribution of a bee plant species to honey production depends on the plant's nectar secretion quality and quantity, which is mainly governed by biotic and abiotic factors. The aim of the current study, was to investigate the nectar secretion dynamics and honey production potential of 14 major bee plant species of the target area. We examined the quantity and dynamics of nectar sugar per flower five times a day using a nectar sugar washing technique and direct measuring of nectar with calibrated capillary tubes...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053192/mature-cd10-and-immature-cd10-neutrophils-present-in-g-csf-treated-donors-display-opposite-effects-on-t-cells
#7
Olivia Marini, Sara Costa, Dalila Bevilacqua, Federica Calzetti, Nicola Tamassia, Cecilia Spina, Donata De Sabata, Elisa Tinazzi, Claudio Lunardi, Maria T Scupoli, Chiara Cavallini, Elisa Zoratti, Ilaria Tinazzi, Antonio Marchetta, Aurora Vassanelli, Maurizio Cantini, Giorgio Gandini, Andrea Ruzzenente, Alfredo Guglielmi, Francesco Missale, William Vermi, Cristina Tecchio, Marco A Cassatella, Patrizia Scapini
The identification of discrete neutrophil populations, as well as the characterization of their immunoregulatory properties, is an emerging topic under extensive investigation. In such regard, the presence of circulating CD66b(+)-neutrophil populations, exerting either immunosuppressive or proinflammatory functions, has been described in several acute and chronic inflammatory conditions. However, due to the lack of specific markers, the precise phenotype and maturation status of these neutrophil populations remain unclear...
January 4, 2017: Blood
https://www.readbyqxmd.com/read/28043109/a-possible-pathogenic-linkage-among-headache-migraine-and-nocturnal-enuresis-in-children
#8
Pietro Ferrara, Livia Dell'Aquila, Giacomo Perrone, Giulia Spina, Francesco Miconi, Valentina Rapaccini, Ester Del Vescovo, Vincenzo Di Lazzaro, Alberto Verrotti
PURPOSE: This study aims to evaluate the prevalence of headaches and migraine in children with nocturnal enuresis (NE) and to improve knowledge on these conditions. In particular, for this purpose, a possible pathogenic relationship linking both conditions and the impact of headaches and migraine on NE persistence was evaluated. METHODS: Researchers enrolled 123 children with NE, aged between 5 and 15 years, referred to the Service of Pediatrics, Campus Bio-Medico University Hospital of Rome between January 2014 and January 2015...
December 2016: International Neurourology Journal
https://www.readbyqxmd.com/read/28031401/segmental-specificity-in-belly-dance-mimics-primal-trunk-locomotor-patterns
#9
Marilee Margaret Nugent, Theodore E Milner
Belly dance was used to investigate control of rhythmic undulating trunk movements in humans. Activation patterns in lumbar erector spinae muscles were recorded using surface electromyography at four segmental levels spanning T10 to L4. Muscle activation patterns for movement tempos of 2 Hz, 3 Hz and as fast as possible (up to 6 Hz) were compared to test the hypothesis that frequency modulates muscle timing, causing pattern changes analogous to gait transitions. Groups of trained and untrained female subjects were compared to test the hypothesis that experience modifies muscle coordination patterns and the capacity for selective motion of spinal segments...
December 28, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28017604/effect-of-the-abdominal-hollowing-and-bracing-maneuvers-on-activity-pattern-of-the-lumbopelvic-muscles-during-prone-hip-extension-in-subjects-with-or-without-chronic-low-back-pain-a-preliminary-study
#10
Amir H Kahlaee, Leila Ghamkhar, Amir M Arab
OBJECTIVE: The purpose of this study was to compare the effect of abdominal hollowing (AH) and abdominal bracing (AB) maneuvers on the activity pattern of lumbopelvic muscles during prone hip extension (PHE) in participants with or without nonspecific chronic low back pain (CLBP). METHODS: Twenty women with or without CLBP participated in this cross-sectional observational study. The electromyographic activity (amplitude and onset time) of the contralateral erector spinae (CES), ipsilateral erector spinae (IES), gluteus maximus, and biceps femoris muscles was measured during PHE with and without abdominal maneuvers...
December 22, 2016: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28009410/optical-coherence-tomography-angiography-findings-in-laser-maculopathy
#11
Livia Tomasso, Lucia Benatti, Carlo La Spina, Rosangela Lattanzio, Giovanni Baldin, Adriano Carnevali, Luigi A De Vitis, Lea Querques, Francesco Bandello, Giuseppe Querques
PURPOSE: Handheld laser pointer thermal injury affects primarily the retinal pigment epithelium (RPE). However, so far no study has reported on the possible effects of laser pointers in the deeper layers, beneath the RPE. Here, we describe the spectral-domain optical coherence tomography angiography findings in the choriocapillaris of a patient with laser maculopathy. METHODS: A 13-year-old boy presented to our department with decreased vision in the left eye 12 hours after having stared at the beam of a laser pointer...
November 28, 2016: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28002271/reproducibility-and-reliability-of-optical-coherence-tomography-angiography-for-foveal-avascular-zone-evaluation-and-measurement-in-different-settings
#12
Carlo La Spina, Adriano Carnevali, Alessandro Marchese, Giuseppe Querques, Francesco Bandello
PURPOSE: Optical coherence tomography angiography (OCTA) allows delineating the foveal avascular zone (FAZ) easily and noninvasively. The present study aims to test reproducibility and reliability of FAZ evaluation by means of OCTA in different settings. METHODS: Twenty-four eyes of 24 normal subjects were investigated using AngioVue OCTA Imaging System. A series of OCTA acquisitions were taken both in basal and in different experimental settings after vasoactive stimuli...
December 20, 2016: Retina
https://www.readbyqxmd.com/read/27997493/consideration-of-block-nomenclature-erector-spinae-plane-block-or-retrolaminar-block
#13
Takeshi Murouchi
No abstract text is available yet for this article.
January 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27997492/similarities-between-the-retrolaminar-and-erector-spinae-plane-blocks
#14
Hironobu Ueshima, Hiroshi Otake
No abstract text is available yet for this article.
January 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27988530/revision-of-i-diplosynapsis-i-enderlein-1914-diptera-asilidae-asilinae-with-description-of-four-new-species
#15
Rodrigo Vieira, José Albertino Rafael
The robber fly genus Diplosynapsis Enderlein, 1914 is reviewed and four new species are described-D. chela sp. nov. (Amazonas state, Brazil), D. fisheri sp. nov. (Guapiles, Heredia, Limon, Puntarenas province, Costa Rica), D. spina sp. nov. (Rio de Janeiro state, Brazil) and D. uncinata sp. nov. (Amazonas state, Brazil). A lectotype is designated for D. cellata (Schiner, 1868) pres. desig. and comments are made on D. remus Tomasovic, 2002. An identification key and illustrations are presented for all species...
December 15, 2016: Zootaxa
https://www.readbyqxmd.com/read/27983689/abobotulinum-toxin-a-in-the-treatment-of-chronic-low-back-pain
#16
Duarte Machado, Aditya Kumar, Bahman Jabbari
Chronic low back pain is a debilitating condition with a complex and multifactorial pathophysiology. Botulinum neurotoxins (BoNTs) have strong analgesic effects, as shown in both animal models of pain and in human beings. A randomized, double-blind, placebo-controlled, parallel format study to investigate the efficacy of abobotulinum toxin A (aboA) in chronic low back pain was conducted. The study cohort consisted of 18 patients who received 100 units of aboA into each of the five lumbar extensor spinae muscles unilaterally or bilaterally (total dose 500 to 1000 units), and 19 who received normal saline of the same volume...
December 15, 2016: Toxins
https://www.readbyqxmd.com/read/27981220/clinical-spectrum-of-phaeohyphomycosis-in-solid-organ-transplant-recipients
#17
Maria Claudia Carvas Passarelli Tirico, Cyro F Neto, Lana L Cruz, Antonio Ferreira Mendes-Sousa, Desirée Esther J Valkinir, Ricardo Spina, Walmar R P Oliveira
No abstract text is available yet for this article.
November 2016: JAAD Case Reports
https://www.readbyqxmd.com/read/27941750/role-of-syn-eruptive-plagioclase-disequilibrium-crystallization-in-basaltic-magma-ascent-dynamics
#18
G La Spina, M Burton, M De' Michieli Vitturi, F Arzilli
Timescales of magma ascent in conduit models are typically assumed to be much longer than crystallization and gas exsolution for basaltic eruptions. However, it is now recognized that basaltic magmas may rise fast enough for disequilibrium processes to play a key role on the ascent dynamics. The quantification of the characteristic times for crystallization and exsolution processes are fundamental to our understanding of such disequilibria and ascent dynamics. Here we use observations from Mount Etna's 2001 eruption and a magma ascent model to constrain timescales for crystallization and exsolution processes...
December 12, 2016: Nature Communications
https://www.readbyqxmd.com/read/27940070/on-the-antiquity-of-legg-calv%C3%A3-perthes-disease-skeletal-evidence-in-iron-age-italy
#19
V S Manzon, Z Ferrante, M Giganti, E Gualdi-Russo
Legg-Calvé-Perthes is a very rare disease involving childhood osteochondrosis of the femoral head due to interruption of its blood supply. The etiology is unknown. The signs of the pathology are well described in the literature but few paleopathological cases have been reported, mostly dating from Late Antiquity to Early Middle Ages. Here we report on morphometric and radiological analyses of a skeleton from the Etruscan necropolis of Spina (Ferrara, Italy, 6th-3rd century BCE), to our knowledge the most ancient case of Legg-Calvé-Perthes disease published thus far...
November 28, 2016: Homo: Internationale Zeitschrift Für die Vergleichende Forschung Am Menschen
https://www.readbyqxmd.com/read/27938386/erratum-to-quantification-of-the-cellular-dose-and-characterization-of-nanoparticle-transport-during-in-vitro-testing
#20
Grigore Rischitor, Mariantonietta Parracino, Rita La Spina, Patricia Urbán, Isaac Ojea-Jiménez, Elena Bellido, Andrea Valsesia, Sabrina Gioria, Robin Capomaccio, Agnieszka Kinsner-Ovaskainen, Douglas Gilliland, François Rossi, Pascal Colpo
No abstract text is available yet for this article.
9, 2016: Particle and Fibre Toxicology
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