From Robert Fisk, From Christopher Walker, From Our Own Correspondent, From David Blake, Peter/Norman, From Diana Geddes, From Christopher Thomas, By Henry Stanhope Defence Correspondent, By Julian Haviland, Political Editor, By David Felton Labour Reporter, By David Nicholson-Lord, By Peter Evans, Home Affairs Correspondent, By Frances Gibb, From Richard Ford, By Frances Williams, By the Staff of "Nature", By David Felton, Labour Reporter, By Pat Healy Social Services Correspondent, By David Walker, By Ronald Faux, By Lucy Hodges, From Jonathan Wills, By John Young Agriculture Correspondent, From Zoriana Pysariwsky, By Michael Horsnell, From John Witherow, From Rasit Gurdilek, From Alan McGregor, From Mario Modiano, By Zoriana Pysariwsky, From Our Correspondent, From Patricia Clough, From Michael Hornsby, From Charles Harrison, From Roger Boyes, From Richard Wigg, Irving Wardle, Ned Chaillet, John Percival, Hilary Finch, Noël Goodwin, Peter Ackroyd, Robert Fisk, William Perry, PHS, John Wardroper, IAN HARGREAVES, ANDRES RESTREPOLONDONO, M. S. PATERSON, D. M. R. PARK, GEOFFREY CARR, JOHN SMITH, EDWARD VALE, BROOKEBOROUGH, HORIA GEORGESCU, HENRY G. BUTTON, C. C. EVANS, T. ERIC EVANS, ANTHONY LEOPARD, RUSSELL H. SAGE, By Clifford Longley, Religious Affairs Correspondent, From Geraldine Norman Sale Room Correspondent, Brinsley Ford, Gareth David, By Edward Townsend, Industrial Correspondent, By Clifford Webb Motoring Correspondent, From Bailey Morris, By Peter Wilson-Smith, By Our Industrial Correspondent, David Blake, Michael Prest, Maxwell Newton, Sally White, Philip Robinson, Bill Johnstone, By Michael Prest, Harold Fridjhow, Peter Wilson-Smith, By John Woodcock, Cricket Correspondent, By John Woodcock, By Peter Marson, From Rex Bellamy, Tennis Correspondent, By David Powell, By Keith Macklin, From Mitchell Platts, By Gordon Allan, By Michael Phillips Racing Correspondent, By Our Racing Staff, By Our Newmarket Correspondent, By Sydney Friskin, From Desmond Stoneham, By Peter Aykroyd, By Pamela Macgregor-Morris, By John Watson, By Devina Cannon, By John Nicholls, From a Special Correspondent, By Norman Fox, Athletics Correspondent, By Peter Ryde, By Sri Kumar Sen, Boxing Correspondent, By John Wilcockson, By Nicholas Harling, By Adrianne Blue, Norman Fox, Baron Phillips, Edited by Peter Dear, By David Hewson,
... programmes. Births. Deaths. Obituaries: Prof Don Xavier De Salas, Mr Peter Boardman and Mr Joe Tasker Contribution ...
1982 - Gale Group | TDA
James H. Brown, Barry J. Fox, Douglas Kelt,
... 10.1086/711397Cintia Natalia Martín-Regalado, Miguel Briones-Salas, Mario C. Lavariega, Claudia E. Moreno, Mathew S. Crowther ...
Tópico(s): Wildlife Ecology and Conservation
2000 - University of Chicago Press | The American Naturalist
... 10.1086/711397Cintia Natalia Martín-Regalado, Miguel Briones-Salas, Mario C. Lavariega, Claudia E. Moreno, Mathew S. Crowther ...
Tópico(s): Evolution and Paleontology Studies
2000 - University of Chicago Press | The American Naturalist
... 1111/evo.13790Cintia Natalia Martín-Regalado, Miguel Briones-Salas, Mario C. Lavariega, Claudia E. Moreno, Mathew S. Crowther ...
Tópico(s): Animal Ecology and Behavior Studies
1985 - University of Chicago Press | The American Naturalist
Produção Nacional
Revisado por pares
Jhoann Canto, Rodolfo Salas‐Gismondi, Mário Alberto Cozzuol, José Yáñez,
JHOANN CANTO,1 RODOLFO SALAS-GISMONDI,*2 MARIO COZZUOL,3 and JOSE YANEZ4; 1Museo Nacional de Historia Natural, Secci6n Paleontologfa, Casilla 587, Santiago, Chile, jcanto@paleontologica.org; 2Departamento ...
Tópico(s): Amphibian and Reptile Biology
2008 - Taylor & Francis | Journal of Vertebrate Paleontology
Ildefonso Fernández‐Salas, Mario H. Rodrı́guez, Donald R. Roberts, Carmen García‐Rodríguez, Robert A. Wirtz,
... Mexico Get access Ildefonso Fernandez-Salas, Ildefonso Fernandez-Salas 1 2 Centro de Investigación de Paludismo. Ap. Postal 357, Tapachula, Chiapas 30700, Mexico 1Uniformed Services University of the Health Sciences, Department of Preventive Medicine & Biometrics, 4301 Jones Bridge Road, Bethesda, MD 20814. Search for other works by this author on: Oxford Academic PubMed Google Scholar Mario Henry Rodriguez, Mario Henry Rodriguez Centro de Investigación ...
Tópico(s): Vector-borne infectious diseases
1994 - Oxford University Press | Journal of Medical Entomology
... Ochoa, Ali Altamirano, Matthieu Carré, Manuel J. Laime, Mario Urbina, Rodolfo Salas‐Gismondi, Stephan Lautenschlager Nasal compartmentalization in Kogiidae (Cetacea, ... spp2.1351Aldo Benites-Palomino, Jorge Vélez-Juarbe, Rodolfo Salas-Gismondi, Mario Urbina Scaphokogia totajpe , sp. nov., a new bulky- ...
Tópico(s): Ocean Acidification Effects and Responses
1871 - University of Chicago Press | The American Naturalist
Cristian O. Salas, Mario Faúndez, Antonio Morello, Juan Diego Maya, Ricardo A. Tapia,
Chagas disease is one of the most important endemic diseases in Latin America, caused by Trypanosoma cruzi. The drugs used for the treatment of this disease, nifurtimox and benznidazole, are toxic and present severe side effects. The need of effective drugs, without adverse effects, has stimulated the search for new compounds with potential clinical utility. An overview of a number of natural naphthoquinones tested against T. cruzi parasites is provided. Among natural naphthoquinones, lapachol, ...
Tópico(s): Trypanosoma species research and implications
2010 - Bentham Science Publishers | Current Medicinal Chemistry
Mauricio Landaverde, Daniela Salas, Mario Humberto, Kathleen M. Howard, R. J. Walker, S. Everett, Staci Robyn, Laura M. Erhart, Simon Anderson, Susan Goodykoontz, Mark A. Pallansch, James J. Sejvar, Kristin Kenyan, J. Alexander, Lorraine N. Alexander, Jane F. Seward,
Tópico(s): Inflammatory Myopathies and Dermatomyositis
2006 - Centers for Disease Control and Prevention | MMWR Morbidity and Mortality Weekly Report
Miguel Briones‐Salas, Mario C. Lavariega, Iván Lira-Torres,
En Oaxaca son escasos los registros que se conocen del jaguar (Panthera onca), por lo que en este trabajose actualiza su distribución geográfica y genera un modelo de distribución potencial de la especie en el estado. Serevisaron literatura y bases de datos de colecciones científicas nacionales y extranjeras y se realizó trabajo de campo.Se obtuvieron 31 registros; de éstos, el 83.87% son del trabajo de campo y el 16.13% de la literatura y coleccionescientíficas. Los registros pertenecen a la clase ...
Tópico(s): Bat Biology and Ecology Studies
2012 - National Autonomous University of Mexico | Revista Mexicana de Biodiversidad
Rosa Magán, Clotilde Marı́n, Juan M. Salas, Mario Barrera-Pérez, María J. Rosales, Manuel Sánchez‐Moreno,
There is no effective chemotherapy against diseases caused by Phytomonas sp., a plant trypanosomatid responsible for economic losses in major crops. We tested three triazolo-pyrimidine complexes [two with Pt(II), and another with Ru(III)] against promastigotes of Phytomonas sp. isolated from Euphorbia characias. The incorporation of radiolabelled precursors, ultrastructural alterations and changes in the pattern of metabolite excretion were examined. Different degrees of toxicity were found for each ...
Tópico(s): Plant Parasitism and Resistance
2004 - Instituto Oswaldo Cruz, Ministério da Saúde | Memórias do Instituto Oswaldo Cruz
Miguel Briones‐Salas, Mario Alberto Peralta-Pérez, Margarita García‐Luis,
Biodiversity inventories are sometimes biased by the various collection methods applied. In the case of the bats, the acoustic monitoring technique has proven to be complementary to conventional sampling. From July 2007 to June 2008, we studied the composition of a bat community in the southern region of the Isthmus of Tehuantepec, Oaxaca, Mexico. We registered 32 species of bats belonging to six families. Thirteen species of the family Phyllostomidae were captured in mist nets, while three species ...
Tópico(s): Marine animal studies overview
2013 - Asociacion Mexicana de Mastozoología A.C. | Therya
Fredy Romero, Luis Garcı́a, José A. Salas, Mario Dı́az, Luís M. Quirós,
Serratia marcescens ATCC 25419 was chosen for production, purification and characterization of secreted proteases when growing on reconstituted whey. A major metallo-protease and a minor serine protease were produced during growth, and they were purified by ammonium sulphate precipitation, Q-Sepharose ion exchange and Sephacryl S-200 gel filtration chromatography. The molecular masses on SDS-PAGE were estimated to be 53 500 and 66 500 Da for the metallo and the serine protease, respectively. The ...
Tópico(s): Proteins in Food Systems
2001 - Elsevier BV | Process Biochemistry
Carmen Gasca‐Salas, Mario Masellis, Edwin Khoo, Binit Shah, David N. Fisman, Anthony E. Lang, Galit Kleiner‐Fisman,
Background Mutations in granulin (PGRN) and tau (MAPT), and hexanucleotide repeat expansions near the C9orf72 genes are the most prevalent genetic causes of frontotemporal lobar degeneration. Although behavior, language and movement presentations are common, the relationship between genetic subgroup and movement disorder phenomenology is unclear. Objective We conducted a systematic review and meta-analysis of the literature characterizing the spectrum and prevalence of movement disorders in genetic ...
Tópico(s): Amyotrophic Lateral Sclerosis Research
2016 - Public Library of Science | PLoS ONE
Esther González-López, Christian Gagliardi, Fernándo Domínguez, Candida Cristina Quarta, F. Javier de Haro-del Moral, Agnese Milandri, Clara Salas, Mario Cinelli, Marta Cobo Marcos, Massimiliano Lorenzini, Enrique Lara‐Pezzi, Serena Foffi, Luis Alonso‐Pulpón, Claudio Rapezzi, Pablo García‐Pavía,
Wild-type transthyretin amyloidosis (ATTRwt) is mostly considered a disease predominantly of elderly male, characterized by concentric LV hypertrophy, preserved LVEF, and low QRS voltages. We sought to describe the characteristics of a large cohort of ATTRwt patients to better define the disease.Clinical findings of consecutive ATTRwt patients diagnosed at 2 centres were reviewed. ATTRwt was diagnosed histologically or non-invasively (LV hypertrophy ≥12 mm, intense cardiac uptake at 99mTc-DPD scintigraphy ...
Tópico(s): Cardiac electrophysiology and arrhythmias
2017 - Oxford University Press | European Heart Journal
Pauline van Nies, Ilja Westerlaken, Duco Blanken, Margarita Salas, Mario Mencı́a, Christophe Danelon,
Replication of DNA-encoded information and its conversion into functional proteins are universal properties of life. In an effort toward the construction of a synthetic minimal cell, we implement here the DNA replication machinery of the Φ29 virus in a cell-free gene expression system. Amplification of a linear DNA template by self-encoded, de novo synthesized Φ29 proteins is demonstrated. Complete information transfer is confirmed as the copied DNA can serve as a functional template for gene expression, ...
Tópico(s): Bacterial Genetics and Biotechnology
2018 - Nature Portfolio | Nature Communications
Cintia Natalia Martín‐Regalado, Miguel Briones‐Salas, Mario C. Lavariega, Claudia E. Moreno,
Biodiversity is multidimensional and different mechanisms can influence different dimensions. The spatial distribution of these dimensions can help in conservation decisions through the location of complementary areas with high diversity. We analyzed congruence in spatial patterns of species richness and functional diversity of cricetid rodents in the state of Oaxaca, southern Mexico, at different scales, and environmental variables related. Potential distribution models were produced for 49 species ...
Tópico(s): Species Distribution and Climate Change
2019 - Public Library of Science | PLoS ONE
Produção Nacional
Revisado por pares
Tony Mok, Yi‐Long Wu, Iveta Kudaba, Dariusz M. Kowalski, Byoung Chul Cho, H.Z. Turna, Gilberto de Castro, Vichien Srimuninnimit, К. К. Лактионов, Igor Bondarenko, Kaoru Kubota, Gregory M. Lubiniecki, Jin Zhang, Debra Kush, Gilberto Lopes, Grigory Adamchuk, Myung‐Ju Ahn, Aurelia Alexandru, Özden Altundağ, Anna Alyasova, Orest Andrusenko, Keisuke Aoe, António Araújo, Osvaldo Rudy Aren, Óscar Arrieta, Touch Ativitavas, Oscar Avendaño, Fernando Barata, Carlos H. Barrios, Carlos Beato, Per Bergström, Daniel Betticher, Л. В. Болотина, Igor Bondarenko, Michiel Botha, Sayeuri Buddu, Christian Caglevic, Andrés F. Cardona, Gilberto de Castro, Hugo R. Castro, Filiz Çay Şenler, Carlos Alexandre Sydow Cerny, Alvydas Česas, Gee-Chen Chan, Jianhua Chang, Gongyan Chen, Xi Chen, Susanna Cheng, Ying Cheng, Nelly Cherciu, Chao‐Hua Chiu, Byoung Chul Cho, Saulius Cicėnas, Daniel Ciurescu, Graham Cohen, Marcos André Costa, Pongwut Danchaivijitr, Flávia De Angelis, Sérgio Jobim Azevedo, Mircea Dediu, Tsvetan Deliverski, Pedro Rafael Martins De Marchi, F Vallés, Zhenyu Ding, Boyan Doganov, Lydia Dreosti, Ricardo Duarte, Regina Edusma-Dy, S. A. Emelyanov, Mustafa Erman, Yun Fan, Luis Fein, Jifeng Feng, David Fenton, Gustavo dos Santos Fernandes, Carlos Gil Ferreira, Fábio Franke, H. Freitas, Yasuhito Fujisaka, Héctor Galindo, Christina Galvez, Doina Ganea, Nuno Gil, Gustavo Girotto, Erdem Göker, Tuncay Göksel, Gonzalo Gomez Aubin, Luis Gomez Wolff, Håkan Griph, Mahmut Gümüş, Jacqueline A. Hall, Gregory Hart, Libor Havel, Jianxing He, Yong He, Carlos Hernández Hernández, Venceslau Hespanhol, Tomonori Hirashima, Chung Man James Ho, Atsushi Horiike, Yukio Hosomi, Katsuyuki Hotta, Mei Hou, Soon Hin How, Te‐Chun Hsia, Yi Hu, Masao Ichiki, Fumio Imamura, О. І. Іващук, Yasuo Iwamoto, Jana Jaal, Jacek Jassem, Christa Jordaan, Rosalyn A. Juergens, Diego Kaen, Ewa Kalinka‐Warzocha, Nina Karaseva, Bogusława Karaszewska, Andrzej Każarnowicz, Kazuo Kasahara, Nobuyuki Katakami, Terufumi Kato, Tomoya Kawaguchi, Joo Hang Kim, Kazuma Kishi, Vı́tězslav Kolek, Marchela Koleva, Petr Kolman, Leona Koubková, Rubén Dario Kowalyszyn, Dariusz M. Kowalski, Krassimir Koynov, Doran Ksienski, Kaoru Kubota, Iveta Kudaba, Takayasu Kurata, Gerli Kuusk, Lyudmila Kuzina, Ibolya Laczó, Guia Elena Imelda Ladrera, К. К. Лактионов, Gregory Landers, Sergey Lazarev, Guillermo Lerzo, Krzysztof Lesniewski- Kmak, Wei Li, Chong Kin Liam, Igor Lifirenko, O. N. Lipatov, Xiaoqing Liu, Zhe Liu, Sing Hung Lo, Valéria Lopes, Karla Alejandra Lopez, Shun Lü, Gastón L. Martinengo, Luís Más, Marina Matrosova, Rumyana Micheva, Zhasmina Mihaylova Milanova, Lucian Miron, Tony Mok, Matias Molina, Shuji Murakami, Yasuharu Nakahara, Tien Quang Nguyen, Takashi Nishimura, Adrian F. Ochsenbein, Tatsuo Ohira, R. Öhman, Byoung Chul Cho, Gyula Ostoros, Xuenong Ouyang, Е. Г. Овчинникова, Özgür Özyılkan, Luboš Petruželka, Xuan Dung Pham, Pablo Picon, Béla Pikó, Artem Poltoratsky, Olga Ponomarova, Patrice Popelková, Gunta Purkalne, Shukui Qin, Rodryg Ramlau, Bernardo Rappaport, Felipe Rey, Eduardo Richardet, Jaromı́r Roubec, Paul Ruff, Andrii Rusyn, Hideo Saka, Jorge Salas, Mario Sandoval, Lucas Vieira dos Santos, Toshiyuki Sawa, Kasan Seetalarom, Mesut Şeker, Nobuhiko Seki, Freddy Seolwane, Lucinda Shepherd, Sergii Shevnya, Andrea Kazumi Shimada, Yaroslav Shparyk, Ivan Sinielnikov, Daniela Sîrbu, Òren Smaletz, João Paulo Holanda Soares, Aumkhae Sookprasert, Giovanna Speranza, Vichien Srimuninnimit, Virote Sriuranpong, Zinaida Stara, Wu‐Chou Su, Shunichi Sugawara, Waldemar Szpak, Kazuhisa Takahashi, Nagio Takigawa, Hiroshi Tanaka, Jerry Tan Chun Bing, Qiyou Tang, Pavel Taranov, Hermes Tejada, Lye Mun Tho, Yoshitaro Torii, Dmytro Trukhyn, Maria Turdean, Hande Turna, G. Ursol, J Vaňásek, Mirta Varela, Marcela Vallejo, L. Vera, Ana-Paula Victorino, Tomáš Vlásek, Ihor Vynnychenko, Buhai Wang, Jie Wang, Kai Wang, Yi‐Long Wu, Kazuhiko Yamada, James Chih‐Hsin Yang, Takuma Yokoyama, Toshihide Yokoyama, Hiroshige Yoshioka, Perran Fulden Yumuk, Ángela R. Zambrano, Juan José Zarbá, Oleg Zarubenkov, Marius Žemaitis, Li Zhang, Li Zhang, Xin Zhang, Jun Zhao, Caicun Zhou, Jianying Zhou, Qing Zhou, Alfred Zippelius,
First-line pembrolizumab monotherapy improves overall and progression-free survival in patients with untreated metastatic non-small-cell lung cancer with a programmed death ligand 1 (PD-L1) tumour proportion score (TPS) of 50% or greater. We investigated overall survival after treatment with pembrolizumab monotherapy in patients with a PD-L1 TPS of 1% or greater.This randomised, open-label, phase 3 study was done in 213 medical centres in 32 countries. Eligible patients were adults (≥18 years) with ...
Tópico(s): Lung Cancer Diagnosis and Treatment
2019 - Elsevier BV | The Lancet
Lorena De Medina-Salas, Mario Rafael Giraldi-Díaz, Eduardo Castillo-González, Laura Elena Morales-Mendoza,
The industrialization process of oranges generates waste, which is inadequately disposed of; this produces adverse effects on the environment. Among the alternatives for valorization is the vermicomposting process, which consists of the degradation of organic waste through the action of earthworms and microorganisms. Therefore, this research aimed to study this process using orange peel (OP) waste at the laboratory level. For this purpose, it was necessary to determine the degradation conditions ...
Tópico(s): Composting and Vermicomposting Techniques
2020 - Multidisciplinary Digital Publishing Institute | Sustainability
Óscar Arrieta, Alejandro Avilés‐Salas, Mario Orozco‐Morales, Norma Hernández‐Pedro, Andrés F. Cardona, Luis Cabrera‐Miranda, Pedro Barrios‐Bernal, Giovanny Soca‐Chafre, Graciela Cruz‐Rico, María de Lourdes Peña‐Torres, Guadalupe Moncada‐Claudio, Horacio Astudillo‐de la Vega,
Abstract Objective CD47 is an antiphagocytic molecule that contributes to tumor cell resistance in host immune surveillance. CD47 overexpression correlated with tumor progression and shorter survival in lung cancer. However, the expression and functional significance of CD47 in Non‐Small Cell Lung Cancer (NSCLC) has not been completely understood. Materials and Methods In this retrospective study, CD47 expression was immunohistochemically examined in tumor biopsies from 169 NSCLC patients. The association ...
Tópico(s): Immunotherapy and Immune Responses
2020 - Wiley | Cancer Medicine
Benjamín Valdez, Ernesto Beltrán‐Partida, Nelson Cheng, Jorge Salvador‐Carlos, Ernesto Valdez-Salas, Mario Curiel, Roberto Ibarra-Wiley,
Background: The COVID-19 pandemic is requesting highly effective protective personnel equipment, mainly for healthcare professionals. However, the current demand has exceeded the supply chain and, consequently, shortage of essential medical materials, such as surgical masks. Due to these alarming limitations, it is crucial to develop effective means of disinfection, reusing, and thereby applying antimicrobial shielding protection to the clinical supplies. Purpose: Therefore, in this work, we developed ...
Tópico(s): COVID-19 and healthcare impacts
2021 - Dove Medical Press | International Journal of Nanomedicine
Eduardo Castillo-González, Lorena De Medina-Salas, Mario Rafael Giraldi-Díaz, Cipriano Sánchez-Noguez,
As vermicomposting has become a viable alternative for the valorization of organic waste; the objectives of this research were to (1) assess the feasibility of said process for corn cob waste (corn cobs and corn husks) and (2) evaluate the operation conditions for the biodegradation of different mixtures with load material (LM). LM did not include animal excreta as a nitrogen source, a practice widely used in a range of studies. The experiment consisted of an initial phase of pre-composting in order ...
Tópico(s): Composting and Vermicomposting Techniques
2021 - Multidisciplinary Digital Publishing Institute | Applied Sciences
Zaira Domínguez, Javier Hernández, Lorena Silva-Gutiérrez, M. Salas, Mario Sánchez, Gabriel Merino,
The effect of electron-withdrawing (EW) and electron-releasing (ER) substituents on the 31P NMR chemical shifts and the structural parameters of a series of tris-(p-X-aryl)selenophosphates is reported in this article. Similarly to O-aryl phosphates and O-aryl thiophosphates, EW groups attached to aromatic rings induce a shielding effect on the 31P NMR signal. After a detailed experimental and theoretical analysis, we confirmed that the selenium atom is the main part responsible for the charge density ...
Tópico(s): Synthesis and Reactivity of Sulfur-Containing Compounds
2010 - Taylor & Francis | Phosphorus, sulfur, and silicon and the related elements
... org/10.7717/peerj.13392Michelangelo Bisconti, Diana Ochoa, Mario Urbina, Rodolfo Salas-Gismondi Archaebalaenoptera eusebioi , a new rorqual from the ...
Tópico(s): Marine animal studies overview
1928 - University of Chicago Press | The Quarterly Review of Biology
Christian de Muizon, H. Gregory McDonald, Rodolfo Salas‐Gismondi, Mario Urbina,
ABSTRACT Thalassocnus antiquus, sp. nov., is a marine nothrothere from the late Miocene Aguada de Lomas vertebrate horizon (ca. 7 to 8 Ma) of the Pisco Formation in the Sacaco area of the southern coast of Peru. It is similar to the slightly younger latest Miocene Thalassocnus natans, but smaller and distinctly more gracile. The sloping morphology of the lateral border of the nares in T. antiquus differs from the probably plesiomorphic subvertical edge of the nares in T. natans. Parsimony analysis ...
Tópico(s): Primate Behavior and Ecology
2003 - Taylor & Francis | Journal of Vertebrate Paleontology
Olivier Lambert, Giovanni Bianucci, Klaas Post, Christian de Muizon, Rodolfo Salas‐Gismondi, Mario Urbina, J.W.F. Reumer,
Tópico(s): Marine and coastal plant biology
2010 - Nature Portfolio | Nature
Christian de Muizon, H. Gregory McDonald, Rodolfo Salas‐Gismondi, Mario Urbina,
ABSTRACT Two new specimens of the aquatic sloth Thalassocnus from the Pliocene of Peru are described, one of T. carolomartini McDonald and Muizon, 2002 and the other T. yaucensis, sp. nov. Comparisons with the type species of Thalassocnus, T. natans, demonstrates that T. carolomartini and T. yaucensis are more similar morphologically to each other than to other species of the genus and are more derived. For example, both have a more elongated rostrum (premaxillae and mandibular spout) and more robust, ...
Tópico(s): Wildlife Ecology and Conservation
2004 - Taylor & Francis | Journal of Vertebrate Paleontology
Christian de Muizon, H. Gregory McDonald, Rodolfo Salas‐Gismondi, Mario Urbina,
ABSTRACT The aquatic sloth Thalassocnus is represented by five species that lived along the coast of Peru from the late Miocene through the late Pliocene. A detailed comparison of the cranial and mandibular anatomy of these species indicates different feeding adaptations. The three older species of Thalassocnus (T. antiquus, T. natans, and T. littoralis) were probably partial grazers (intermediate or mixed feeders) and the transverse component of mandibular movement was very minor, if any. They were ...
Tópico(s): Primate Behavior and Ecology
2004 - Taylor & Francis | Journal of Vertebrate Paleontology
Julio C. Salas‐Alanís, Mario Amaya‐Guerra, John A. McGrath,
Abstract Background Type VII collagen gene (COL7A1) mutations are the cause of dystrophic epidermolysis bullosa (DEB), but most mutations are specific to individual families, and there are limited data on the nature of COL7A1 mutations in certain ethnic populations. Objective To determine the molecular basis of DEB in Hispanic Mexican patients. Methods Patients were recruited through a newly established support group, Fundaçion DEBRA México. Molecular analysis was performed by polymerase chain reaction ( ...
Tópico(s): Cell Adhesion Molecules Research
2000 - Wiley | International Journal of Dermatology
Ricardo L. Soto, Roberto C. Dı́az, Hans Nina, Mario Salas,
In this paper we give new sufficient conditions for the existence and construction of nonnegative matrices with prescribed elementary divisors, which drastically improve and contain some of the previous known conditions. We also show how to perturb complex eigenvalues of a nonnegative matrix while keeping its nonnegativity. These results allow us, under certain conditions, to easily decide if a given list is realizable with prescribed elementary divisors.
Tópico(s): Algebraic and Geometric Analysis
2013 - Elsevier BV | Linear Algebra and its Applications