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https://www.readbyqxmd.com/read/28425281/hybridized-c-o-si-interface-states-at-the-origin-of-efficiency-improvement-in-cnt-si-solar-cell
#1
Stefano Ponzoni, Simona Achilli, Chiara Pintossi, Giovanni Drera, Luigi Sangaletti, Paola Castrucci, Maurizio De Crescenzi, Stefania Pagliara
Despite the astonishing values of the power conversion efficiency reached, in just less than a decade, by the carbon nanotube / silicon (CNT/Si) solar cells, many doubts remain on the underlying transport mechanisms across the CNT/Si heterojunction. Here, by combining transient optical spectroscopy in the femtosecond timescale, X-ray photoemission and a systematic tracking of I-V curves across all phases of the interlayer SiOx growth at the interface, we grasp the mechanism that adequately preserves charge separation at the junction, hindering the photoexcited carrier recombination...
April 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28389114/facile-access-to-pseudo-thio-1-2-dimannoside-a-new-glycomimetic-dc-sign-antagonist
#2
Alice Tamburrini, Silvia Achilli, Francesca Vasile, Sara Sattin, Corinne Vivès, Cinzia Colombo, Franck Fieschi, Anna Bernardi
The synthesis and conformational analysis of pseudo-thio-1,2-dimannoside are described. This molecule mimics mannobioside (Manα(1,2)Man) and is an analog of pseudo-1,2-dimannoside, with expected increased stability to enzymatic hydrolysis. A short and efficient synthesis was developed based on an epoxide ring-opening reaction by a mannosyl thiolate, generated in situ from the corresponding thioacetate. NMR-NOESY studies supported by MM3(∗) calculations showed that the pseudo-thio-1,2-dimannoside shares the conformational behavior of the pseudo-1,2-dimannoside and is a structural mimic of the natural disaccharide...
March 22, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28387361/origin-and-spread-of-human-mitochondrial-dna-haplogroup-u7
#3
Hovhannes Sahakyan, Baharak Hooshiar Kashani, Rakesh Tamang, Alena Kushniarevich, Amirtharaj Francis, Marta D Costa, Ajai Kumar Pathak, Zaruhi Khachatryan, Indu Sharma, Mannis van Oven, Jüri Parik, Hrant Hovhannisyan, Ene Metspalu, Erwan Pennarun, Monika Karmin, Erika Tamm, Kristiina Tambets, Ardeshir Bahmanimehr, Tuuli Reisberg, Maere Reidla, Alessandro Achilli, Anna Olivieri, Francesca Gandini, Ugo A Perego, Nadia Al-Zahery, Massoud Houshmand, Mohammad Hossein Sanati, Pedro Soares, Ekta Rai, Jelena Šarac, Tena Šarić, Varun Sharma, Luisa Pereira, Veronica Fernandes, Viktor Černý, Shirin Farjadian, Deepankar Pratap Singh, Hülya Azakli, Duran Üstek, Natalia Ekomasova Trofimova, Ildus Kutuev, Sergei Litvinov, Marina Bermisheva, Elza K Khusnutdinova, Niraj Rai, Manvendra Singh, Vijay Kumar Singh, Alla G Reddy, Helle-Viivi Tolk, Svjetlana Cvjetan, Lovorka Barac Lauc, Pavao Rudan, Emmanuel N Michalodimitrakis, Nicholas P Anagnou, Kalliopi I Pappa, Maria V Golubenko, Vladimir Orekhov, Svetlana A Borinskaya, Katrin Kaldma, Monica A Schauer, Maya Simionescu, Vladislava Gusar, Elena Grechanina, Periyasamy Govindaraj, Mikhail Voevoda, Larissa Damba, Swarkar Sharma, Lalji Singh, Ornella Semino, Doron M Behar, Levon Yepiskoposyan, Martin B Richards, Mait Metspalu, Toomas Kivisild, Kumarasamy Thangaraj, Phillip Endicott, Gyaneshwer Chaubey, Antonio Torroni, Richard Villems
Human mitochondrial DNA haplogroup U is among the initial maternal founders in Southwest Asia and Europe and one that best indicates matrilineal genetic continuity between late Pleistocene hunter-gatherer groups and present-day populations of Europe. While most haplogroup U subclades are older than 30 thousand years, the comparatively recent coalescence time of the extant variation of haplogroup U7 (~16-19 thousand years ago) suggests that its current distribution is the consequence of more recent dispersal events, despite its wide geographical range across Europe, the Near East and South Asia...
April 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28377518/ancient-individuals-from-the-north-american-northwest-coast-reveal-10-000-years-of-regional-genetic-continuity
#4
John Lindo, Alessandro Achilli, Ugo A Perego, David Archer, Cristina Valdiosera, Barbara Petzelt, Joycelynn Mitchell, Rosita Worl, E James Dixon, Terence E Fifield, Morten Rasmussen, Eske Willerslev, Jerome S Cybulski, Brian M Kemp, Michael DeGiorgio, Ripan S Malhi
Recent genomic studies of both ancient and modern indigenous people of the Americas have shed light on the demographic processes involved during the first peopling. The Pacific Northwest Coast proves an intriguing focus for these studies because of its association with coastal migration models and genetic ancestral patterns that are difficult to reconcile with modern DNA alone. Here, we report the low-coverage genome sequence of an ancient individual known as "Shuká Káa" ("Man Ahead of Us") recovered from the On Your Knees Cave (OYKC) in southeastern Alaska (archaeological site 49-PET-408)...
April 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28230223/observation-of-charge-transfer-cascades-in-%C3%AE-fe2o3-irox-photoanodes-by-operando-x-ray-absorption-spectroscopy
#5
Alessandro Minguzzi, Alberto Naldoni, Ottavio Lugaresi, Elisabetta Achilli, Francesco D'Acapito, Francesco Malara, Cristina Locatelli, Alberto Vertova, Sandra Rondinini, Paolo Ghigna
Electrochemical devices for energy conversion and storage are central for a sustainable economy. The performance of electrodes is driven by charge transfer across different layer materials and an understanding of the mechanistics is pivotal to gain improved efficiency. Here, we directly observe the transfer of photogenerated charge carriers in a photoanode made of hematite (α-Fe2O3) and a hydrous iridium oxide (IrOx) overlayer, which plays a key role in photoelectrochemical water oxidation. Through the use of operando X-ray absorption spectroscopy (XAS), we probe the change in occupancy of the Ir 5d levels during optical band gap excitation of α-Fe2O3...
February 22, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28199423/-outpatient-s-profile-assisted-by-the-psychiatry-residents-of-the-prof-dr-r-rossi-general-hospital-la-plata-argentina
#6
Diego Giannandrea, Julián Achilli Lucas, Lucía Saldaño, María J Barrenengoa, Mariano Dramis, Mariano Barraco, Matías González Olivi, María T Burry
OBJECTIVE: To define the profile and the treatments evolution of the outpatients assisted by the psychiatry residents of the Rossi Hospital in La Plata. METHODS: It was analyzed the period between 2005 and 2010 (six years). The variables selected included gender, age, diagnosis (according to ICD 10), duration and evolution of treatment. RESULTS: From the total number of patients (n=341), 58,7% were women (n= 200) and 41,3% men (n= 141). The most frequent diagnoses were: anxiety disorders (13,6%), depressive disorders (12,8%), schizophrenia (12,2%), other non-affective psychoses (9%) and mental retardation (8,4%)...
March 2016: Vertex: Revista Argentina de Psiquiatriá
https://www.readbyqxmd.com/read/28177087/mitogenome-diversity-in-sardinians-a-genetic-window-onto-an-island-s-past
#7
Anna Olivieri, Carlo Sidore, Alessandro Achilli, Andrea Angius, Cosimo Posth, Anja Furtwängler, Stefania Brandini, Marco Rosario Capodiferro, Francesca Gandini, Magdalena Zoledziewska, Maristella Pitzalis, Andrea Maschio, Fabio Busonero, Luca Lai, Robin Skeates, Maria Giuseppina Gradoli, Jessica Beckett, Michele Marongiu, Vittorio Mazzarello, Patrizia Marongiu, Salvatore Rubino, Teresa Rito, Vincent Macaulay, Ornella Semino, Maria Pala, Gonçalo R Abecasis, David Schlessinger, Eduardo Conde-Sousa, Pedro Soares, Martin B Richards, Francesco Cucca, Antonio Torroni
Sardinians are "outliers" in the European genetic landscape and, according to paleogenomic nuclear data, the closest to early European Neolithic farmers. To learn more about their genetic ancestry, we analyzed 3,491 modern and 21 ancient mitogenomes from Sardinia. We observed that 78.4% of modern mitogenomes cluster into 89 haplogroups that most likely arose in situ. For each Sardinian-specific haplogroup (SSH), we also identified the upstream node in the phylogeny, from which non-Sardinian mitogenomes radiate...
May 1, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28018850/right-ventricular-reverse-remodelling-in-idiopathic-pulmonary-arterial-hypertension-diagnosed-during-pregnancy-is-it-possible
#8
Giuseppe Paciocco, Andrea Lombi, Antonella Vincenzi, Alberto Pesci, Felice Achilli
We present a case of a 36-year-old woman who developed a severe form of Idiopathic Pulmonary Arterial Hypertension (IPAH) during pregnancy and after emergency delivery. The management of IPAH during or after pregnancy is complex. Due to the severity of her IPAH, an upfront triple combination therapy, including i.v. epoprostenol, was started. The rapid institution of this treatment regimen allowed a complete right ventricular reverse remodelling after 1 year of therapy, leading to a down-titration until complete suspension of epoprostenol from the treatment regimen...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/27982607/tognolini-et%C3%A2-al-reply
#9
S Tognolini, S Achilli, L Longetti, E Fava, C Mariani, M I Trioni, S Pagliara
No abstract text is available yet for this article.
December 2, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27974499/human-sod1-als-mutations-in-a-drosophila-knock-in-model-cause-severe-phenotypes-and-reveal-dosage-sensitive-gain-and-loss-of-function-components
#10
Aslı Şahin, Aaron Held, Kirsten Bredvik, Paxton Major, Toni-Marie Achilli, Abigail G Kerson, Kristi Wharton, Geoff Stilwell, Robert Reenan
Amyotrophic Lateral Sclerosis (ALS) is the most common adult-onset motor neuron disease and familial forms can be caused by numerous dominant mutations of the copper-zinc superoxide dismutase 1 (SOD1) gene. Substantial efforts have been invested in studying SOD1-ALS transgenic animal models; yet, the molecular mechanisms by which ALS-mutant SOD1 protein acquires toxicity are not well understood. ALS-like phenotypes in animal models are highly dependent on transgene dosage. Thus, issues of whether the ALS-like phenotypes of these models stem from overexpression of mutant alleles or from aspects of the SOD1 mutation itself are not easily deconvolved...
February 2017: Genetics
https://www.readbyqxmd.com/read/27933090/the-worldwide-spread-of-the-tiger-mosquito-as-revealed-by-mitogenome-haplogroup-diversity
#11
Vincenza Battaglia, Paolo Gabrieli, Stefania Brandini, Marco R Capodiferro, Pio A Javier, Xiao-Guang Chen, Alessandro Achilli, Ornella Semino, Ludvik M Gomulski, Anna R Malacrida, Giuliano Gasperi, Antonio Torroni, Anna Olivieri
In the last 40 years, the Asian tiger mosquito Aedes albopictus, indigenous to East Asia, has colonized every continent except Antarctica. Its spread is a major public health concern, given that this species is a competent vector for numerous arboviruses, including those causing dengue, chikungunya, West Nile, and the recently emerged Zika fever. To acquire more information on the ancestral source(s) of adventive populations and the overall diffusion process from its native range, we analyzed the mitogenome variation of 27 individuals from representative populations of Asia, the Americas, and Europe...
2016: Frontiers in Genetics
https://www.readbyqxmd.com/read/27916205/efficacy-and-safety-of-transdermal-testosterone-in-postmenopausal-women-with-hypoactive-sexual-desire-disorder-a-systematic-review-and-meta-analysis
#12
Chiara Achilli, Jyotsna Pundir, Parimalam Ramanathan, Luca Sabatini, Haitham Hamoda, Nick Panay
OBJECTIVE: To systematically review and summarize the existing evidence related to the efficacy and safety of transdermal T in postmenopausal women for the treatment of hypoactive sexual desire disorder (HSDD). DESIGN: Systematic reviews and meta-analysis. SETTING: Not applicable. PATIENT(S): Seven randomized controlled trials enrolled 3,035 participants; 1,350 women were randomized to treatment with T patch, and 1,379 women were randomized to placebo...
February 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/27667396/textile-organic-electrochemical-transistors-as-a-platform-for-wearable-biosensors
#13
I Gualandi, M Marzocchi, A Achilli, D Cavedale, A Bonfiglio, B Fraboni
The development of wearable chemical sensors is receiving a great deal of attention in view of non-invasive and continuous monitoring of physiological parameters in healthcare applications. This paper describes the development of a fully textile, wearable chemical sensor based on an organic electrochemical transistor (OECT) entirely made of conductive polymer (PEDOT:PSS). The active polymer patterns are deposited into the fabric by screen printing processes, thus allowing the device to actually "disappear" into it...
September 26, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27517098/fe3o4-sio2-core-shell-nanoparticles-for-biomedical-purposes-adverse-effects-on-blood-cells
#14
C Achilli, S Grandi, G F Guidetti, A Ciana, C Tomasi, D Capsoni, G Minetti
Magnetite nanoparticles coated with silica, obtained by a sol-gel process in the reverse micelle microemulsion, were characterized and homogeneously suspended in water in order to assay their biocompatibility toward blood cells, in view of a potential medical use of this material. Their hemolytic, pro-thrombotic and pro-inflammatory properties were observed.
October 20, 2016: Biomaterials Science
https://www.readbyqxmd.com/read/27468763/an-efficient-cuxo-photocathode-for-hydrogen-production-at-neutral-ph-new-insights-from-combined-spectroscopy-and-electrochemistry
#15
Tomasz Baran, Szymon Wojtyła, Cristina Lenardi, Alberto Vertova, Paolo Ghigna, Elisabetta Achilli, Martina Fracchia, Sandra Rondinini, Alessandro Minguzzi
Light-driven water splitting is one of the most promising approaches for using solar energy in light of more sustainable development. In this paper, a highly efficient p-type copper(II) oxide photocathode is studied. The material, prepared by thermal treatment of CuI nanoparticles, is initially partially reduced upon working conditions and soon reaches a stable form. Upon visible-light illumination, the material yields a photocurrent of 1.3 mA cm(-2) at a potential of 0.2 V vs a reversible hydrogen electrode at mild pH under illumination by AM 1...
August 24, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27146119/mapping-human-dispersals-into-the-horn-of-africa-from-arabian-ice-age-refugia-using-mitogenomes
#16
Francesca Gandini, Alessandro Achilli, Maria Pala, Martin Bodner, Stefania Brandini, Gabriela Huber, Balazs Egyed, Luca Ferretti, Alberto Gómez-Carballa, Antonio Salas, Rosaria Scozzari, Fulvio Cruciani, Alfredo Coppa, Walther Parson, Ornella Semino, Pedro Soares, Antonio Torroni, Martin B Richards, Anna Olivieri
Rare mitochondrial lineages with relict distributions can sometimes be disproportionately informative about deep events in human prehistory. We have studied one such lineage, haplogroup R0a, which uniquely is most frequent in Arabia and the Horn of Africa, but is distributed much more widely, from Europe to India. We conclude that: (1) the lineage ancestral to R0a is more ancient than previously thought, with a relict distribution across the Mediterranean/Southwest Asia; (2) R0a has a much deeper presence in Arabia than previously thought, highlighting the role of at least one Pleistocene glacial refugium, perhaps on the Red Sea plains; (3) the main episode of dispersal into Eastern Africa, at least concerning maternal lineages, was at the end of the Late Glacial, due to major expansions from one or more refugia in Arabia; (4) there was likely a minor Late Glacial/early postglacial dispersal from Arabia through the Levant and into Europe, possibly alongside other lineages from a Levantine refugium; and (5) the presence of R0a in Southwest Arabia in the Holocene at the nexus of a trading network that developed after ~3 ka between Africa and the Indian Ocean led to some gene flow even further afield, into Iran, Pakistan and India...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27054850/an-overview-of-ten-italian-horse-breeds-through-mitochondrial-dna
#17
Irene Cardinali, Hovirag Lancioni, Andrea Giontella, Marco Rosario Capodiferro, Stefano Capomaccio, Luca Buttazzoni, Giovanni Paolo Biggio, Raffaele Cherchi, Emidio Albertini, Anna Olivieri, Katia Cappelli, Alessandro Achilli, Maurizio Silvestrelli
BACKGROUND: The climatic and cultural diversity of the Italian Peninsula triggered, over time, the development of a great variety of horse breeds, whose origin and history are still unclear. To clarify this issue, analyses on phenotypic traits and genealogical data were recently coupled with molecular screening. METHODOLOGY: To provide a comprehensive overview of the horse genetic variability in Italy, we produced and phylogenetically analyzed 407 mitochondrial DNA (mtDNA) control-region sequences from ten of the most important Italian riding horse and pony breeds: Bardigiano, Esperia, Giara, Lipizzan, Maremmano, Monterufolino, Murgese, Sarcidano, Sardinian Anglo-Arab, and Tolfetano...
2016: PloS One
https://www.readbyqxmd.com/read/27045606/bm-ageing-implication-for-cell-therapy-with-epcs
#18
Erica Rurali, Beatrice Bassetti, Gianluca Lorenzo Perrucci, Marco Zanobini, Cristina Malafronte, Felice Achilli, Elisa Gambini
The bone marrow (BM) is a well-recognized source of stem/progenitor cells for cell therapy in cardiovascular diseases (CVDs). Preclinical and clinical studies suggest that endothelial progenitor cells (EPCs) contribute to reparative process of vascular endothelium and participate in angiogenesis. As for all organs and cells across the lifespan, BM and EPCs are negatively impacted by ageing due to microenvironment modifications and EPC progressive dysfunctions. The encouraging results in terms of neovascularization observed in young animals after EPC administration were mitigated in aged patients treated for ischemic CVDs...
October 2016: Mechanisms of Ageing and Development
https://www.readbyqxmd.com/read/27028382/perioperative-period-of-a-hemophilia-related-osteoarthropathy-therapeutic-regimen-and-analysis-of-complications
#19
Ye Li, Xi-sheng Weng, Jin Lin, Jin Jin, Wen-wei Qian, Bao-zhong Zhang, Peng Gao, Ji-liang Zhai
OBJECTIVE: To investigate the effectiveness of our department's therapeutic regimen and treatment of complications during the perioperative period of hemophilia-related osteoarthropathy. METHODS: In this retrospective study, data on 101 patients with hemophilia who had undergone operative treatment in our hospital from January 2000 to August 2014 were assessed. Ninety-one of the patients had hemophilia A and 10 hemophilia B. All patients were male. Changes in Hospital for Special Surgery (HSS), Harris and American Orthopedic Foot and Ankle Society (AOFAS) scores, occurrence of complications during the perioperative period and the clinical treatment and prognosis pre- and postoperatively and during follow-up were analyzed...
February 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/26956949/-physiological-and-pathological-development-of-calcaneal-apophysis-in-children
#20
REVIEW
L Döderlein, C Dussa
BACKGROUND: The apophysis of the calcaneal bone forms an insertional region for the strong plantarflexors with the Achillis tendon and serves as an origin for the plantar aponeurosis and the short intrinsic foot muscles. Both components create a tendinous sling whithin which the apophysis acts as a pivot, which functions when it runs a straight course and its tension is adequate. This mechanism results in combined tractional and compressional forces which work together with the ground reaction forces during gait as molding elements of the calcaneous bone...
March 2016: Der Orthopäde
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