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Artigo Revisado por pares

Alejandro A. Schaaf, Martín R. De La Peña,

... more papers by this authorMartin R. de la Peña, Martin R. de la Peña Tres de Febrero 1870, ... more papers by this authorMartin R. de la Peña, Martin R. de la Peña Tres de Febrero 1870, 3080 Esperanza, ArgentinaSearch for ...

Tópico(s): Wildlife Ecology and Conservation

2020 - Wiley | Ecology

Revisão Revisado por pares

Arne Høst, S. Andrae, С. А. Чаркин, C.A. Díaz Vázquez, Sten Dreborg, Philippe Eigenmann, Frank Friedrichs, Per Grinsted, Gideon Lack, G. Meylan, P. Miglioranzi, Antonella Muraro, Antonio Nieto, B. Niggemann, Carlos Pascual, M.-G. Pouech, F. Rancé, E. Rietschel, Magnus Wickman,

... 104 Garcia-Ara C, Boyano-Martinez T, Diaz-Pena JM, Martin-Munoz F, Reche-Frutos M, Martin-Esteban M. ... 105 Boyano-Martinez T, Garcia-Ara C, Diaz-Pena JM, Martin-Esteban M. Prediction of tolerance on the basis ...

Tópico(s): Food Allergy and Anaphylaxis Research

2003 - Wiley | Allergy

Artigo Acesso aberto Revisado por pares

María Luz Martín Peña, José María Sánchez López, Bart Kamp, Elena M. Gimenez‐Fernandez,

Servitization allows manufacturing firms to differentiate themselves from rivals and become more competitive. Scholars have studied the service paradox, but analysis of the relationship between servitization and firm performance has provided inconclusive results. In terms of the antecedents that influence this relationship, the literature has tended to focus on firm and product characteristics but not on companies' innovative behavior. This article probes the relationship between servitization and ...

Tópico(s): Digital Marketing and Social Media

2023 - Wiley | R and D Management

Artigo Acesso aberto Revisado por pares

Joseph Santhi Pechsiri, Jean-Baptiste Thomas, Naoufel El Bahraoui, F.G. Acién, Jamal Chaouki, Saad Chidami, Rodrigo Rivera Tinoco, Jose Pena Martin, Cintia Gómez-Serrano, Michel Combe, Fredrïk Gröndahl,

The versatility of microalgae biomass as candidates for various products and bioremediation needs motivates interests towards design and implementation of novel microalgae bioreactors. Conventional open-reactors are reliant on large quantities of sunlight and space while yields are constrained by outdoor environment conditions. Conversely, closed-reactor systems like bubble columns reduces these constrains on microalgae growth while occupying far less space at the expense of high energy demands, ...

Tópico(s): Algal biology and biofuel production

2022 - Elsevier BV | The Science of The Total Environment

Artigo Acesso aberto Revisado por pares

Jun Chen, Toral Patel, Marco C. Pinho, Changho Choi, Crystal Harrison, Jeannie Baxter, Kelley Derner, Salvador Peña Martín, Jeff Liticker, Jaffar Ali Raza, Ronald G. Hall, Galen D. Reed, Chunyu Cai, Kimmo J. Hatanpaa, James A. Bankson, Robert Bachoo, Craig R. Malloy, Bruce Mickey, Jae Mo Park,

Glioblastoma remains incurable despite treatment with surgery, radiation therapy, and cytotoxic chemotherapy, prompting the search for a metabolic pathway unique to glioblastoma cells.13C MR spectroscopic imaging with hyperpolarized pyruvate can demonstrate alterations in pyruvate metabolism in these tumors.Three patients with diagnostic MRI suggestive of a glioblastoma were scanned at 3 T 1-2 days prior to tumor resection using a 13C/1H dual-frequency RF coil and a 13C/1H-integrated MR protocol, ...

Tópico(s): Atomic and Subatomic Physics Research

2021 - Oxford University Press | Neuro-Oncology Advances

Carta Acesso aberto Revisado por pares

Jae Mo Park, Galen D. Reed, Jeff Liticker, William C. Putnam, Alvin Chandra, Katarina Yaros, Aneela Afzal, James P. MacNamara, Jaffar Ali Raza, Ronald G. Hall, Jeannie Baxter, Kelley Derner, Salvador Peña Martín, Raja Reddy Kallem, Indhu Subramaniyan, Vindhya Edpuganti, Crystal Harrison, Alagar R Muthukumar, Cheryl Lewis, Sangeetha M. Reddy, Nisha Unni, Dawn Klemow, Samira Syed, Hsiao Li, Suzanne Cole, Thomas Froehlich, Colby Ayers, James A. de Lemos, Craig R. Malloy, Barbara Haley, Vlad G. Zaha,

HomeCirculation ResearchVol. 127, No. 12Effect of Doxorubicin on Myocardial Bicarbonate Production From Pyruvate Dehydrogenase in Women With Breast Cancer Free AccessLetterPDF/EPUBAboutView PDFView EPUBSections ToolsAdd to favoritesDownload citationsTrack citationsPermissions ShareShare onFacebookTwitterLinked InMendeleyRedditDiggEmail Jump toFree AccessLetterPDF/EPUBEffect of Doxorubicin on Myocardial Bicarbonate Production From Pyruvate Dehydrogenase in Women With Breast Cancer Jae Mo Park, Galen ...

Tópico(s): Medical Imaging Techniques and Applications

2020 - Lippincott Williams & Wilkins | Circulation Research

Artigo Acesso aberto Revisado por pares

Andrea Pisano, Carmen Griñán‐Lisón, Cristiano Farace, Giovanni Fiorito, Grazia Fenu, Gema Jiménez, Fabrizio Scognamillo, Jesús Peña-Martín, Alessio Naccarati, Johannes Pröll, S. Atzmüller, Barbara Pardini, Federico Attene, Gabriele Ibba, Giuliana Solinas, David Bernhard, Juan Antonio Marchal, Roberto Madeddu,

Colorectal cancer (CRC) is the third most frequent cancer worldwide and the second cause of cancer deaths. Increasing evidences supports the idea that the poor prognosis of patients is related to the presence of cancer stem cells (CSCs), a cell population able to drive cancer recurrence and metastasis. The deregulation of microRNAs (miRNAs) plays a role in the formation of CSC. We investigated the role of hsa-miR-486-5p (miR-486-5p) in CRC, CSCs, and metastasis, in order to reach a better understanding ...

Tópico(s): Cancer-related molecular mechanisms research

2020 - Multidisciplinary Digital Publishing Institute | Cancers

Artigo Acesso aberto Revisado por pares

Juan P. Peña-Martín, Juan M. Romero-Jerez, F. Javier López‐Martínez,

The Beckmann distribution is a general multipath fading model for the received radio signal in the presence of a large number of scatterers, which can thence be modeled as a complex Gaussian random variable where both the in-phase and quadrature components have arbitrary mean and variance. However, the complicated nature of this distribution has prevented its widespread use and relatively few analytical results have been reported for this otherwise useful fading model. In this paper, we derive a ...

Tópico(s): Advanced MIMO Systems Optimization

2017 - IEEE Communications Society | IEEE Transactions on Communications

Artigo Revisado por pares

Juan P. Peña-Martín, Juan M. Romero-Jerez, C. Téllez-Labao,

An analytical study of selection combining (SC) diversity under η-μ multipath fading is presented, considering that the μ parameter takes integer values. Closed-form expressions are derived for the statistics of the signal-to-noise ratio (SNR) at the combiner output and for the error rate of some relevant M-ary modulation schemes. Additionally, closed-form expressions are also derived for the channel capacity, considering different adaptive transmission policies. It is shown that, if the number of ...

Tópico(s): Advanced Wireless Communication Techniques

2014 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Vehicular Technology

Artigo Acesso aberto Revisado por pares

Marta Bastos Oliveira, Simon Eckerström‐Liedholm, Jordi Estefa Lopez, Annalena Lochte, Magdalena Pazio, Jesús Peña-Martín, Patrik Rödin Mörch, Seela Salakka, Julia M. York, Andrew Yoshimoto, Ralf Janßen,

A current hypothesis states that the ancestral limb of arthropods is composed of only two segments. The proximal segment represents the main part of the modern leg, and the distal segment represents the tarsus and claw of the modern leg. If the distal part of the limb is an ancestral feature, one would expect conserved regulatory gene networks acting in distal limb development in all arthropods and possibly even their sister group, the onychophorans. We investigated the expression patterns of six ...

Tópico(s): Developmental Biology and Gene Regulation

2014 - Springer Science+Business Media | Development Genes and Evolution

Artigo Revisado por pares

Juan P. Peña-Martín, Juan M. Romero-Jerez, C. Téllez-Labao,

This paper presents the performance analysis of a wireless system with multiple transmit and receive antennas under Hoyt fading. Receive antennas are assumed to perform Maximal Ratio Combining (MRC), whereas the antenna at the transmit end that maximizes the instantaneous output signal-to-noise ratio (SNR) is selected for transmission. When the number of receive antennas is arbitrary, an exact compact expression is derived for the outage probability. For two receive antennas, closed-form expressions ...

Tópico(s): Wireless Communication Networks Research

2013 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Wireless Communications

Artigo Revisado por pares

Wei Ye, Kyoungmin Min, Pamela Peña Martin, Angus Rockett, N. R. Aluru, Joseph W. Lyding,

We studied electronic properties of atomic-scale dangling bond (DB) and DB wires on Si(100)-2 × 1:H surfaces using a ultrahigh vacuum scanning tunneling microscope (UHV-STM). The decay of the near-midgap DB-states induced by an unpaired DB depends on the crystalline orientation of the Si(100) surface. The decay length of the DB-states of an unpaired DB wire can be ~ 2.5 nm along the dimer row direction. The perturbation from an unpaired DB to an adjacent paired DB is also demonstrated. The results are ...

Tópico(s): Molecular Junctions and Nanostructures

2012 - Elsevier BV | Surface Science

Artigo Revisado por pares

Juan P. Peña-Martín, Juan M. Romero-Jerez, Gabriel Aguilera‐Venegas, Andrea Goldsmith,

This work explores the performance of MIMO (multiple-input/multiple-output) systems in Rayleigh fading channels with co-channel interference (CCI) and thermal noise. We provide analytical expressions for the outage probability of maximal ratio transmission combined with one of two different receive antenna array schemes, maximal ratio combining (MRC) and interference cancellation (IC) via null steering of the array pattern. We derive the statistics of the signal to interference-plus- noise ratio (SINR) ...

Tópico(s): Wireless Communication Networks Research

2009 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Wireless Communications

Artigo Revisado por pares

Juan M. Romero-Jerez, Juan P. Peña-Martín, Andrea Goldsmith,

We propose a new approach to outage probability analysis of predetection maximal ratio combining (MRC) diversity reception in Nakagami- $m$ fading channels. We generalize prior work in that we consider L independent cochannel interferers with arbitrary powers and fading parameters as well as the effects of additive white Gaussian noise (AWGN). Our approach results in a general expression for outage probability under very broad assumptions. Moreover, our approach leads to a closed-form expression for ...

Tópico(s): Cooperative Communication and Network Coding

2007 - IEEE Communications Society | IEEE Transactions on Communications

Artigo Revisado por pares

Juan P. Peña-Martín, Juan M. Romero-Jerez,

Closed-form analytical expressions are derived for the outage probability of predetection maximal ratio combiner (MRC) diversity reception with M branches in Rayleigh fading channels. This formulation is obtained in the presence of white Gaussian noise and Q interferers, without restrictions regarding the power, number or distribution parameters of interferers.

Tópico(s): Advanced MIMO Systems Optimization

2004 - Institution of Engineering and Technology | Electronics Letters

Artigo Revisado por pares

M. Sielicki, D. D. Focht, Jorge Peña Martín,

Microbial degradation of [β- 14 C]polystyrene and 1,3-diphenylbutane, a compound structurally representing the smallest repeating unit of styrene (dimer), was investigated in soil and liquid enrichment cultures. Degradation rates in soil, as determined by 14 CO 2 evolution from applied [ 14 C]polystyrene, varied from 1.5 to 3.0% for a 4-month period. Although relatively low, these percentages were 15 to 30 times greater than values previously reported. Enrichment cultures, containing 1,3-diphenylbutane ...

Tópico(s): biodegradable polymer synthesis and properties

1978 - Canadian Science Publishing | Canadian Journal of Microbiology

Artigo Revisado por pares

John H. Stewart, N. D. Topp, S. Peña Martín, Elanor Schawrowas, Yvonne Flaus, A. G. R. Sheil, J. F. Mahony,

The cost of establishing a patient on hemodialysis in his own home and of maintaining treatment there has been calculated from the records of a dialysis unit devoted entirely to domiciliary treatment. Provision of equipment, training for self-supervised dialysis and home alterations cost $5,000 per patient for hollow fibre dialysis and $6,000 per patient for Kiil diaylsis. Running expenses of home dialysis have been $3,800 per patient per year for hollow fibre dialysis and $2,600 for Kiil dialysis. ...

Tópico(s): Central Venous Catheters and Hemodialysis

1973 - Wiley | The Medical Journal of Australia

Artigo Acesso aberto

Line Algoed, María Hernández Torrales,

... the Fideicomiso de la Tierra del Caño Martín Peña (the Caño Martín Peña Community Land Trust or Caño CLT) from a ... piece of the wider comprehensive development ENLACE Caño Martín Peña Project, whose benefits include reducing the risk of ... considers that informal settlements like those in the Martín Peña area are often located in a city’s ... knowledges produced by the enduring resistance of the Martín Peña communities can support residents in unplanned settlements in ...

Tópico(s): Agriculture, Land Use, Rural Development

2019 - | Radical Housing Journal

Artigo Revisado por pares

Juan M. Romero-Jerez, F. Javier López‐Martínez, Juan P. Peña-Martín, Ali Abdi,

We introduce a comprehensive statistical characterization of the multipath wireless channel built as a superposition of scattered waves with random phases. We consider an arbitrary number $N$ of specular (dominant) components plus an undetermined number of other weak diffusely propagating waves. Our approach covers the cases in which the specular components have constant amplitudes, as well as when these components experience random fluctuations. We show that this class of fading models can be expressed ...

Tópico(s): Wireless Communication Networks Research

2022 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Vehicular Technology

Artigo Revisado por pares

Juan P. Peña-Martín, Juan M. Romero-Jerez, F. Javier López‐Martínez,

We provide new analytical results for the two-wave with diffuse power (TWDP) fading model. Specifically, we derive a closed-form expression for its generalized moment generating function in terms of a finite number of standard hypergeometric functions. This result is used to compute the moments of the TWDP distribution, as well as to analyze the performance of wireless communication systems operating under TWDP fading channels in the context of energy detection, error and outage performances, and ...

Tópico(s): Power Line Communications and Noise

2018 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Vehicular Technology

Artigo Acesso aberto Revisado por pares

Cathleen Wigand, M. E. Gonneea, Benjamin Branoff, Stephen Balogh, Kenneth M. Miller, Rose M. Martin, Alana Hanson, Autumn Oczkowski, Evelyn Huertas, Joseph Loffredo, Elizabeth Watson,

... Sites included the highly urbanized and clogged Caño Martin Peña in the western half of the estuary, a ... In recent decades (1970–2016), the highly urbanized Martin Peña East (MPE) site with low flushing had the ... greater than historic decades (1930–1970) at Caño Martin Peña and Piñones. Although MPE and Piñones had similarly ...

Tópico(s): Cassava research and cyanide

2021 - Frontiers Media | Frontiers in Forests and Global Change

Carta Revisado por pares

Alfonso MartínPeña, Malú G. Tansey,

Tópico(s): Infant Health and Development

2023 - Nature Portfolio | Nature

Artigo Acesso aberto Revisado por pares

Galen D. Reed, Junjie Ma, Jae Mo Park, Rolf F. Schulte, Crystal Harrison, Albert P. Chen, Salvador Peña Martín, Jeannie Baxter, Kelly Derner, Maida Tai, Jaffar Ali Raza, Jeff Liticker, Ronald G. Hall, A. Dean Sherry, Vlad G. Zaha, Craig R. Malloy,

Purpose This study aimed to investigate the role of regional inhomogeneity in spiral hyperpolarized 13 C image quality and to develop measures to alleviate these effects. Methods Field map correction of hyperpolarized 13 C cardiac imaging using spiral readouts was evaluated in healthy subjects. Spiral readouts with differing duration (26 and 45 ms) but similar resolution were compared with respect to off‐resonance performance and image quality. An map‐based image correction based on the multifrequency ...

Tópico(s): Electron Spin Resonance Studies

2021 - Wiley | Magnetic Resonance in Medicine

Carta Acesso aberto Revisado por pares

Takatsugu Komata, Lars Söderström, Magnus P. Borres, Hiroshi Tachimoto, Motohiro Ebisawa,

... Ara M.C. Boyano-Martinez M.T. Diaz-Pena J.M. Martin-Munoz M.F. Martin-Estaban M. Cow's ... Ara M.C. Boyano-Martinez M.T. Diaz-Pena J.M. Martin-Munoz M.F. Martin-Estaban M. Cow's ...

Tópico(s): Allergic Rhinitis and Sensitization

2007 - Elsevier BV | Journal of Allergy and Clinical Immunology

Artigo Acesso aberto Revisado por pares

Autumn Oczkowski, Emily Santos, Andrew B. Gray, Kenneth M. Miller, Evelyn Huertas, Alana Hanson, Rose M. Martin, Elizabeth Watson, Cathleen Wigand,

... A critical channel in the estuary, the Caño Martín Peña, has filled in and now frequently floods the ... exceed that from the runoff into the Caño Martín Peña. The ecological consequences of this appear to extend ...

Tópico(s): Groundwater and Isotope Geochemistry

2019 - Springer Science+Business Media | Ecosystems

Artigo Revisado por pares

Almudena MartínPeña, Manuela Aguilar‐Guisado, Ildefonso Espigado, Ricardo Parody, José Miguel Cisneros,

MartínPeña A, Aguilar‐Guisado M, Espigado I, Parody R, Cisneros JM. Prospective study of infectious complications in ...

Tópico(s): Neutropenia and Cancer Infections

2010 - Wiley | Clinical Transplantation

Artigo Acesso aberto

Mariangela Veronesi, Line Algoed, María E. Hernández Torrales,

... brings into focus the case of the Caño Martín Peña communities in San Juan, Puerto Rico, where residents ...

Tópico(s): Water Governance and Infrastructure

2022 - Taylor & Francis | International Journal of Urban Sustainable Development