Rudolf Jaffé, Youhei Yamashita, Nagamitsu Maie, William T. Cooper, Thorsten Dittmar, Walter K. Dodds, Jeremy B. Jones, T. Myoshi, Jorge R. Ortíz-Zayas, David C. Podgorski, Akira Watanabe,
Dissolved organic matter (DOM) represents the largest organic matter pool in freshwater systems, but much of it remains molecularly uncharacterized. Although freshwater systems cover only a small area of the earth's surface, inland waters are an important component of the global carbon cycle. The traditional idea that rivers are simply conduits for refractory carbon delivery to coastal areas is inconsistent with carbon flux estimates, and streams have been shown to serve as reactors for DOM cycling. ...
Tópico(s): Fish Ecology and Management Studies
2012 - Elsevier BV | Geochimica et Cosmochimica Acta
Carola Berger, Inés Romero‐Brey, Danijela Radujković, Raphaël Terreux, Margarita Zayas, David Paul, Christian Harak, Simone Hoppe, Min Gao, François Pénin, Volker Lohmann, Ralf Bartenschlager,
Direct-acting antivirals that target nonstructural protein 5A (NS5A), such as daclatasvir, have high potency against the hepatitis C virus (HCV). They are promising clinical candidates, yet little is known about their antiviral mechanisms. We investigated the mechanisms of daclatasvir derivatives.We used a combination of biochemical assays, in silico docking models, and high-resolution imaging to investigate inhibitor-induced changes in properties of NS5A, including its interaction with phosphatidylinositol- ...
Tópico(s): Monoclonal and Polyclonal Antibodies Research
2014 - Elsevier BV | Gastroenterology
M. E. Álvarez‐Ramos, Ma. E. Zayas, David A. Rodríguez‐Carvajal, F. Félix-Domínguez, R. P. Duarte-Zamorano, C. Falcony, U. Caldiño,
A spectroscopic investigation of sodium germanate glasses activated with Ce3+, Tb3+ and Ce3+/Tb3+ is carried out by analyzing their photoluminescence spectra and decay times. Non-radiative energy transfer from Ce3+ to Tb3+ is observed upon near-UV excitation at 310 nm (peak emission wavelength of AlGaN-based LEDs). The non-radiative nature of this energy transfer is inferred from the increase in the decay rate of the Ce3+ emission when the glass is co-doped with Tb3+. From an analysis of the Ce3+ ...
Tópico(s): Photorefractive and Nonlinear Optics
2014 - Elsevier BV | Optical Materials
Yashira M. Zayas‐Gonzalez, David M. Lynn,
We report the fabrication of reactive and degradable cross-linked polymer multilayers by the reactive/covalent layer-by-layer assembly of a non-degradable azlactone-functionalized polymer [poly(2-vinyl-4,4-dimethylazlactone), PVDMA] with hydrolytically or enzymatically degradable polyamine building blocks. Fabrication of multilayers using PVDMA and a hydrolytically degradable poly(β-amino ester) (PBAE) containing primary amine side chains yielded multilayers (∼100 nm thick) that degraded over ∼12 days ...
Tópico(s): biodegradable polymer synthesis and properties
2016 - American Chemical Society | Biomacromolecules
Carolina Hausmann‐Stabile, Luis H. Zayas, David Hauser, Carlos Carvajal, Carlina Mejia, Delia Nieves,
Objective: Latin American-trained international medical graduates (IMGs) in psychiatry residency face multiple challenges that go beyond their medical training. These challenges call for innovative problem-solving. Although the professional development of IMGs has been discussed in the professional literature, little is written about their experiences. In this report, a group of IMGs reflect on their experiences and describe how they solved challenges. Method: Using cogenerative ethnography, four ...
Tópico(s): Migration, Health and Trauma
2011 - Taylor & Francis | International Journal of Mental Health
Alexander Hines, Jacqueline Zayas, David A. Wetter, Alina G. Bridges, Michael Camilleri, Marian T. McEvoy, Rokea A. el‐Azhary, Deepi G. Goyal, Mark D. P. Davis, Julio C. Sartori‐Valinotti,
Introduction Dermatologic complaints are a common reason for emergency department visits. Methods Retrospective chart review from 1 January 2015 to 31 December 2019. Patients in the Mayo Clinic Emergency Department receiving dermatology consultation were included. Results Dermatitis (24.7%, n = 113), infection (20.4%, n = 93), and drug reaction (10.3%, n = 47) accounted for the majority of diagnoses. Emergency department providers often provide no diagnosis (38%) or a differential diagnosis (22%), and dermatology ...
Tópico(s): Nail Diseases and Treatments
2021 - SAGE Publishing | Journal of Telemedicine and Telecare
Ricardo M. Zayas, Sanjive Qazi, David B. Morton, Barry A. Trimmer,
Abstract In addition to their ionotropic role, neuronal nicotinic acetylcholine receptors (nAChRs) can influence second messenger levels, transmitter release and gene transcription. In this study, we show that nAChRs in an insect CNS control cGMP levels by coupling to NO production. In conditions that inhibit spiking, nicotine induced cGMP synthesis. This increase in cGMP was blocked by nicotinic antagonists, and by inhibitors of both nitric oxide synthase and soluble guanylyl cyclase. The nicotinic‐ ...
Tópico(s): Insect and Pesticide Research
2002 - Wiley | Journal of Neurochemistry
Produção Nacional
Revisado por pares
Luiz Antônio Martinelli, Robert W. Howarth, Elvira Cuevas, Solange Filoso, Amy T. Austin, Loreto Donoso, Vera L. M. Huszar, D. R. Keeney, Luciene L. Lara, Carlos Llerena, George Mcissac, Ernesto Medina, Jorge R. Ortíz-Zayas, Donald Scavia, David W. Schindler, Doris Soto, Alan R. Townsend,
While the amount of reactive nitrogen circulating at the global level has increased markedly in the last century, the effects of this increase are largely seen at the regional level due to interacting ecological and socio-economic factors. In contrast with most other regions of the world, Latin America and the Caribbean (LA-Ca) stand out due to the fact that the major input of reactive nitrogen (Nr) still occurs naturally via biological nitrogen fixation (BNF) in natural ecosystems as opposed to anthropogenic ...
Tópico(s): Atmospheric chemistry and aerosols
2006 - Springer Science+Business Media | Biogeochemistry
Ricardo M. Zayas, Sanjive Qazi, David B. Morton, Barry A. Trimmer,
Recently, both nitric oxide synthase (NOS), and nitric oxide (NO)-sensitive guanylyl cyclase were cloned in Manduca sexta and implicated in several cellular, developmental, and behavioral processes (Nighorn et al. [1998] J Neurosci 18:7244-7255). However, NO is a highly diffusive gas, and little is known about the range and specificity of its actions on neurons. To begin examining the role of NO as a neurotransmitter in the central nervous system (CNS) of larval Manduca, we have mapped potential NO-producing ...
Tópico(s): Aquaculture Nutrition and Growth
2000 - Wiley | The Journal of Comparative Neurology
Hazit A. Zayas, Annhelen Lu, David Valade, Faheem Amir, Zhongfan Jia, Rachel K. O’Reilly, Michael J. Monteiro,
l-Proline moieties bound to a thermoresponsive polymer nanoreactor efficiently directed the asymmetric aldol reaction in water with excellent yields and enantioselectivity (ee). The reactions were efficient at higher temperatures in direct contrast to the low yields and ee values found when the reaction was carried out in a DMF/water mixture due to the location of the l-proline moieties within the hydrophobic pocket inside the core of the nanoreactors. This ideal environment formed for catalysis ...
Tópico(s): Synthetic Organic Chemistry Methods
2013 - American Chemical Society | ACS Macro Letters
Gabriela Martinez-Zayas, Sofía Molina, David E. Ost,
Background Thoracentesis and thoracoscopy are used to diagnose malignant pleural effusions (MPE). Data on how sensitivity varies with tumour type is limited. Methods Systematic review using PubMed was performed through August 2020 to determine the sensitivity of thoracentesis and thoracoscopy for MPE secondary to malignancy, by cancer type, and complication rates. Tests to identify sources of heterogeneity were performed. Study quality was assessed using Quality Assessment of Diagnostic Accuracy ...
Tópico(s): Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
2022 - European Respiratory Society | European Respiratory Review
S.E. Paje, J. Llopis, M. E. Zayas, David Rivera, A B Clark, J. Ma. Rinc�n,
Tópico(s): Luminescence Properties of Advanced Materials
1992 - Springer Nature | Applied Physics A Solids and Surface
David I. Abramson, Agenor M. Zayas, John Canning, Jack J. Edinburg,
Tópico(s): Venous Thromboembolism Diagnosis and Management
1963 - Elsevier BV | The American Journal of Cardiology
William R. Allan, Zachary W. Graham, Jose R. Zayas, Dennis P. Roach, David A. Horsley,
This paper describes a fiber Bragg grating strain sensor interrogation system based on a microelectromechanical systems tunable Fabry-Perot filter. The shift in the Bragg wavelength due to strain applied to a sensor fiber is detected by means of a correlation algorithm which was implemented on an embedded digital signal processor. The instrument has a 70 nm tuning range, allowing multiple strain sensors to be multiplexed on the same fiber. The performance of the interrogator was characterized using ...
Tópico(s): Semiconductor Lasers and Optical Devices
2009 - IEEE Sensors Council | IEEE Sensors Journal
Hazit A. Zayas, Nghia P. Truong, David Valade, Zhongfan Jia, Michael J. Monteiro,
There are no reports of star polymers synthesized by reversible addition–fragmentation chain transfer (RAFT) polymerization in aqueous dispersions (e.g. emulsion, miniemulsions). In this work, we used two RAFT agents to produce linear and 4-arm star polymers in a well-controlled miniemulsion system using conventional surfactants (sodium dodecyl sulfate and hexadecane) and initiators (ammonium persulfate). The miniemulsions were formed through ultrasonication of the polymerization mixture to produce ...
Tópico(s): Dendrimers and Hyperbranched Polymers
2012 - Royal Society of Chemistry | Polymer Chemistry
Rebecca J. Carlton, Yashira M. Zayas‐Gonzalez, Uttam Manna, David M. Lynn, Nicholas L. Abbott,
We report a study of the wetting and ordering of thermotropic liquid crystal (LC) droplets that are trapped (or "caged") within micrometer-sized cationic polymeric microcapsules dispersed in aqueous solutions of surfactants. When they were initially dispersed in water, we observed caged, nearly spherical droplets of E7, a nematic LC mixture, to occupy ∼40% of the interior volume of the polymeric capsules [diameter of 6.7 ± 0.3 μm, formed via covalent layer-by-layer assembly of branched polyethylenimine ...
Tópico(s): Pickering emulsions and particle stabilization
2014 - American Chemical Society | Langmuir
Lawrence J. Cheskin, Susan J. Bartlett, Roberto Zayas, Charles H. Twilley, David B. Allison, Carlo Contoreggi,
While usually not the only factor in obese patients, prescription medications, which may increase appetite or body weight, can be important in some individuals. The cause of weight gain in such cases may go unrecognized or lead to cessation of medication with or without the practitioner's knowledge or approval.We found illustrative cases among patients treated at the Johns Hopkins Weight Management Center, searched MEDLINE and the Micromedex Drug Information database, and organized this information ...
Tópico(s): Pharmaceutical Practices and Patient Outcomes
1999 - Lippincott Williams & Wilkins | Southern Medical Journal
Astrid Zayas‐Santiago, David S. Ríos, Lidia Zueva, Mikhail Inyushin,
Abstract Transparent cells in the vertebrate optical tract, such as lens fiber cells and corneal epithelium cells, have specialized proteins that somehow permit only a low level of light scattering in their cytoplasm. It has been shown that both cell types contain (1) beaded intermediate filaments as well as (2) α -crystallin globulins. It is known that genetic and chemical alterations to these specialized proteins induce cytoplasmic opaqueness and visual complications. Crystallins were described previously ...
Tópico(s): Retinal Diseases and Treatments
2018 - Oxford University Press | Microscopy and Microanalysis
Zhanao Deng, Sandra B. Wilson, Xiaobao Ying, Chunxian Chen, Rosanna Freyre, Victor A. Zayas, David M. Czarnecki,
Tópico(s): Banana Cultivation and Research
2020 - American Society for Horticultural Science | HortScience
Gabriel Zayas‐Cabán, Emmett J. Lodree, David L. Kaufman,
Volunteer convergence refers to the influx of volunteers to affected areas after large‐scale disasters. There are not only many benefits to volunteer convergence, but it also creates significant logistical challenges that can impede relief efforts. This study examines polices for admitting volunteers into organized relief operations, and for assigning admitted volunteers to relief tasks. We represent this problem as a queueing system where, in addition to customer arrivals and departures, random ...
Tópico(s): Evacuation and Crowd Dynamics
2020 - Wiley | Production and Operations Management
María José Zayas-Rey, Lucía dos Santos‐Gómez, David Marrero‐López, Laura León‐Reina, Jesús Canales‐Vázquez, Miguel Á. G. Aranda, Enrique R. Losilla,
The most studied ceramic proton conductors are those based on the perovskite structure. However, these materials have some practical drawbacks including their poor tolerance to carbonation. Hence, proton-conducting ceramic materials with fluorite structure are currently under investigation. One of the most studied materials is the lanthanum tungstate, "Ln6WO12". Here, we report a new series of compounds La27W5–5xNb5xO55.5–5x/2□8.5+5x/2 obtained by niobium doping to optimize/increase the amount of ...
Tópico(s): Catalysis and Oxidation Reactions
2013 - American Chemical Society | Chemistry of Materials
Katherine T. Lewandowski, Rebecca Thiede, Nicholas J. Guido, Weston L. Daniel, Richard S. Kang, Mara-Isel Guerrero-Zayas, Mark A. Seeger, Xiao-Qi Wang, David A. Giljohann, Amy S. Paller,
Tópico(s): Cytokine Signaling Pathways and Interactions
2017 - Elsevier BV | Journal of Investigative Dermatology
Luis H. Zayas, Steven P. Schinke, David Casareno,
The literature on adolescent fathers largely ignores hispanic Americans. Studies of adolescent fathers, most often involving black males, suggest directions for research among hispanic males. In this paper, we review the small literature on adolescent fathers relative to several nonexclusive dimensions. These dimensions are adolescent fathers' needs and problems; relationships to the adolescent mothers; social supports and help seeking behavior; and attitudes toward fatherhood and contraception, ...
Tópico(s): Family Dynamics and Relationships
1987 - Elsevier BV | Children and Youth Services Review
Johanie Rivera-Zayas, David Sotomayor‐Ramírez, Ricardo Barnes,
Nitrogen (N) is possibly the most limiting nutrient for crop production on the southern semi-arid coast of Puerto Rico. In efforts to improve inbred maize (Zea mays L.) grain yield, fertilizer N is sometimes aggressively managed. In this paper, we report on the results of a field experiment that evaluated the effect of six rates of fertilizer N (0, 34, 68,102,135 and 203 kg N/ha) and of cowpea (Vigna unguiculata cv. Iron-clay), planted as a cover crop during the offseason, on inbred maize grain yield. ...
Tópico(s): Crop Yield and Soil Fertility
2017 - University of Puerto Rico | The Journal of Agriculture of the University of Puerto Rico
Hengameh H. Raissy, Jürgen Floege, Paul V. Williams, Aaron Jacobs, H. William Kelly,
... Investigator, 1992-1994); Barbara Ortega, RRT (1993-1999); David Weers (1997-1998); Jose Zayas (1995-1996). Washington University, St Louis, Mo: Robert ...
Tópico(s): Allergic Rhinitis and Sensitization
2010 - Elsevier BV | Journal of Allergy and Clinical Immunology
Robert D. Annett, Bruce G. Bender, Michael Gordon,
... Devault (1993–1997); Jeanne Larsson, RN (1995–1996); David Weers (1997–1998); Jose Zayas (1995–1996). Washington University, St. Louis, MO: Robert ...
Tópico(s): Cognitive Abilities and Testing
2006 - Taylor & Francis | Child Neuropsychology
David Holmes, Luis E. Zayas, Alex Koyfman,
Tópico(s): Travel-related health issues
2012 - Springer Science+Business Media | Journal of Community Health
María José Zayas-Rey, Lucía dos Santos‐Gómez, Aurelio Cabeza, David Marrero‐López, Enrique R. Losilla,
Lanthanum tungstates, "La6WO12", are mixed ion proton-electronic conductors with very interesting properties for technological applications and better phase stability compared to alkaline earth perovskites. A new series of compounds La(27.04-x)M(x)W(4.96)O(55.44-x/2□8.56+x/2) (M = Ca(2+), Sr(2+) and Ba(2+)) are investigated with the aim of increasing the concentration of oxygen vacancies and studying their effects on the structure and transport properties. The materials have been studied by high-resolution ...
Tópico(s): Magnetic and transport properties of perovskites and related materials
2014 - Royal Society of Chemistry | Dalton Transactions
Robert C. Strunk, Ryan Colvin, Leonard B. Bacharier, Anne L. Fuhlbrigge, Erick Forno, Ana María Arbeláez, Kelan G. Tantisira, Paul V. Williams, Mary V. Lasley, Tamara Chinn, Michele Hinatsu, Clifton T. Furukawa, Leonard C. Altman, Frank S. Virant, Michael S. Kennedy, Stephen A. Tilles, Jonathan W. Becker, C. Warren Bierman, Dan Crawford, Thomas R. DuHamel, A. Heather Eliassen, Babi Hammond, Miranda MacLaren, Dominick A. Minotti, Chris Reagan, Gail Shapiro, Marian Sharpe, Ashley Jerath Tatum, Grace White, Timothy G. Wighton, Anne L. Fuhlbrigge, Anne Plunkett, Nancy Madden, Susan Anderson, Mark Boehnert, Anita Feins, Amanda Gentile, Natalia Kandror, Kelly MacAulay, Ernestina Sampong, Scott T. Weiss, Walter Torda, Martha Tata, Sally Babigian, Peter Barrant, Linda L. Benson, Jose Caicedo, Tatum Calder, Christine Darcy, Anthony DeFilippo, Cindy Dorsainvil, Julie Reed Erickson, P. Fulton, Mary C. Grace, J. S. Gilbert, Dirk K. Greineder, Stephanie Haynes, Margaret Higham, Deborah Jakubowski, Susan Kelleher, Jay Koslof, Dana Mandel, Patrícia Martin, A. Díaz Martínez, Jean McAuliffe, Erika Nakamoto, Paola Pacella, Paula Parks, Johanna Sagarin, Kay Seligsohn, Susan Swords, Meghan Syring, June Traylor, Melissa Van Horn, Carolyn K. Wells, Ann Whitman, Hartmut Grasemann, Melody Miki, Melinda Solomon, Padmaja Subbarao, Ian MacLusky, Joe Reisman, Henry Levison, Anita Hall, Yola Benedet, Susan Carpenter, Jennifer Chay, Michelle Collinson, Jane Finlayson-Kulchin, Kenneth Gore, Nina Hipolito, Noreen Holmes, Erica Hoorntje, Sharon Klassen, Josée Quenneville, Renée Sananes, Christine Wasson, Margaret Wilson, N. Franklin Adkinson, Deborah Bull, Stephanie Philips, Peyton A. Eggleston, Karen Huss, Leslie Plotnick, Margaret B. Pulsifer, Cynthia S. Rand, Elizabeth Aylward, Nancy Bollers, Kathy Pessaro, Barbara Wheeler, Stanley J. Szefler, Ronina Covar, Harold S. Nelson, Bruce G. Bender, Andy Liu, D. Sundström, Melanie Phillips, Michael P. White, Melanie Gleason, Kristin Brelsford, J.P. Bridges, Jody Ciacco, Michael Eltz, Jeryl Feeley, Michael Flynn, Tara Junk-Blanchard, Joseph Hassell, Marcia Hefner, C. Daniel Hendrickson, Daniel Hettleman, Charles G. Irvin, Alan K. Kamada, Marzena Krawiec, Gary L. Larsen, Sai Nimmagadda, Kendra Sandoval, Jessica Sheridan, Joseph D. Spahn, Gayle Spears, Trella Washington, Eric Willcutt, Ivan D. Cardona, Kirstin Carel, Jayna Doshi, R.W. Hendershot, Jeffrey Jacobs, Neal Jain, June-ku Brian Kang, Tracy Kruzick, Harvey L. Leo, B. Macomber, Jonathan Malka, Chris Mjaanes, John Prpich, Lora Stewart, Ben Song, Grace Tamesis, Robert S. Zeiger, Noah Friedman, Michael Mellon, Michael Schätz, Terrie Long, Travis Macaraeg, Sandra Christensen, James G. Easton, Melanie Feinberg, Linda L. Galbreath, Jennifer Gulczynski, Kathleen Harden, Ellen Kathrine Hansen, Al Jalowayski, Elaine Jenson, Alan J. Lincoln, Jennie Kaufman, Shirley King, Brian Lopez, Michaela Magiari-Ene, Kathleen Mostafa, Avraham Moscona, Catherine A. Nelle, Jennifer Powers, Elsa Rodriguez, Eva Rodríguez, Karen Sandoval, Nevin W. Wilson, Hengameh H. Raissy, Aaron Jacobs, H. William Kelly, Mary Spicher, Christina Batson, Michelle Harkings, Katie McCallum, Robert D. Annett, Teresa Archibeque, Naim S. Bashir, Selda Bereket, Marisa Braun, Carrie M. Bush, Shannon C. Bush, Michael Clayton, Angel Colón‐Semidey, Sara Devault, Anna Esparham, Roni Grad, David Hunt, Jeanne Larsson, Sandra McClelland, Bennie McWilliams, Elisha Montoya, Margaret Moreshead, Shirley Murphy, Barbara Ortega, David Weers, J. Gustavo Zayas, Robert C. Strunk, Leonard B. Bacharier, Denise Rodgers, Ellen Albers, Gregg Belle, Gordon R. Bloomberg, W. Patrick Buchanan, Mary Caesar, James M. Corry, K.A. DeMuth, Marisa Dolinsky, Edwin B. Fisher, Stephen J. Gaioni, Emily Glynn, Bernadette Davantes Heckman, Debra W. Kemp, Lila Kertz, Claire Lawhon, Valerie Morgan, Cynthia Moseid, Tina Oliver-Welker, Diana Richardson, Elizabeth Ryan, Sharon Sagal, Thomas F. Smith, Susan Sylvia, Carl R. Turner, Deborah White, James Tonascia, Patricia Belt, Karen Collins, Betty Collison, John Dodge, Michele Donithan, Cathleen Ewing, Rosetta Jackson, Patrick May, Jill Meinert, Girlie Reyes, Michael Smith, Jürgen Floege, Mark L. Van Natta, Annette Wagoner, Laura Wilson, Robert A. Wise, Katherine P. Yates, Virginia Taggart, Lois Eggers, James P. Kiley, Howard Moore, Gang Zheng, Paul S. Albert, Suzanne S. Hurd, Sydney R. Parker, Pamela Randall, Margaret Wu, Michelle M. Cloutier, John E. Connett, Leona Cuttler, Frank D. Gilliland, C.E. Davis, Howard Eigen, D. Gareth Evans, Meyer Kattan, Rogelio Menendez, F. Estelle R. Simons, Sanford Leikin, Robert C. Strunk, N. Franklin Adkinson, Robert D. Annett, Bruce G. Bender, Mary Caesar, Reuben M. Cherniack, Ronina Covar, Thomas R. DuHamel, Anne L. Fuhlbrigge, Hartmut Grasemann, H. William Kelly, Henry Levison, Alan J. Lincoln, Ian MacLusky, Bennie McWilliams,
BackgroundFew studies have examined how developing obesity in early adulthood affects the course of asthma.ObjectiveWe analyzed lung function and asthma impairment and risk among nonobese children with asthma, comparing those who were obese in young adulthood with those who remained nonobese.MethodsWe carried out the post hoc analysis of 771 subjects with mild to moderate asthma who were not obese (pediatric definition, body mass index [BMI] < 95th percentile) when enrolled in the Childhood Asthma Management ...
Elsevier BV
Uttam Manna, Namrata Raman, Michael A. Welsh, Yashira M. Zayas‐Gonzalez, Helen E. Blackwell, Sean P. Palecek, David M. Lynn,
Many types of slippery liquid-infused porous surfaces (or 'SLIPS') can resist adhesion and colonization by microorganisms. These 'slippery' materials thus offer new approaches to prevent fouling on a range of commercial and industrial surfaces, including biomedical devices. However, while SLIPS can prevent fouling on surfaces to which they are applied, they can currently do little to prevent the proliferation of non-adherent (planktonic) organisms, stop them from colonizing other surfaces, or prevent ...
Tópico(s): Bacterial biofilms and quorum sensing
2016 - Wiley | Advanced Functional Materials