688 research outputs found
How corporate governance and globalization can run afoul of the law and good practices in business: The Enron's disgraceful affair.
No full textThe purpose of this paper is to set out the Enron’s demise into the perspective of Corporate and Global Governance. To accomplish this target, the incremental cash flow model is expanded to give room for governance issues, while a functional introduction to information sets is developed, including bounded rationality, asymmetric information, opportunistic behavior, transaction costs and agency problems. Then, corporate governance is linked to globalization by means of some recent approaches that go beyond a narrow economic mindset to encompass a far-reaching dynamics. Taking advantage of such background, the Enron’s story is tracked down over a span of fifteen years since its starting day to its bankruptcy filing. Leading events are explained from corporate and global governance viewpoints, while an in-depth analysis is worked out on Enron’s complex game of deception and breach of contracts: the outrageous affiliated limited partnerships, the lavish pay package to its executives, the involvement with global governance through the Indian affair and the Taliban connection. It is for the incremental cash flow model to explain malfeasance with cash flows from assets, and how cash flows to creditors were actually contrived. Furthermore, to highlight how cash flows were swindled from stockholders and, finally, how Enron made wheeling and dealing with cash flows on behalf of its managers.corporate governance, global governance, incremental cash flow model, globalization, information sets, good practices.
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Estudios Sociales: Revista de Investigación Científica, Número 31, Enero-Junio 2008
No full textTabla de contenido: El mercado de comida étnica en España: el caso de la comida mexicana / por Dena M. Camarena y Ana I. Sanjuán – El sistema de producción de carne en España / por Alicia Langreo Navarro – Crisis y transformaciones recientes en la región vitivinícola argentina: Mendoza y San Juan, 1970-2005 / por Rodolfo A. Richard-Jorba – La industria láctea ante el proceso de reestructuración de la economía argentina en la década de 1990 / por María Inés Barbero y Graciela E. Gutman – La construcción de la cuenca lechera en la Laguna (1948-1975) / por Mario Cerutti y Eva Rivas Sada – Industrialización sonorense. Itinerario de um proyecto inconcluso / por Miguel Ángel Vázquez Ruiz y María del Carmen Hernández – Reseña: Naturalezas, saberes y territorios comcáac (seri) / por Juan Luis Sariego RodríguezUT Librarie
Magnetoresistance, temporal evolution, and relaxation of the electrical resistivity in the re-entrant semiconducting La0.80Ba0.20CoO3 perovskite
No full textWe report here a study on the electrical and magnetic properties of La1-xBaxCoO3 in the re-entrant semiconducting region (x = 0.20). We find that in this material: (i) the insulator-metal-insulator sequence is unstable and evolves toward a purely semiconducting behavior; the initial ρ versus T curve can be reinstated upon appropriate annealing treatments; (ii) there are relaxation effects that can be seen by changing the polarity of the electrodes; (iii) there is a negative magnetoresistance Δρ/ρ approx. 2-3%, for a field as low as 9 kOe, especially at the metal-insulating transition temperatures; and (iv) there are important fluctuations in the electrical resistivity. Taking into account these experimental observations, we can interpret this material as an inhomogeneous system where two thermodynamic phases, one semiconducting and the other metallic and ferromagnetic, coexist, although they are crystallographically indistinguishable.Fil: Sanchez, Rodolfo Daniel. Universidad de Santiago de Compostela. Facultad de Física; España. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Mira, J.. Universidad de Santiago de Compostela. Facultad de Física; EspañaFil: Rivas, J.. Universidad de Santiago de Compostela. Facultad de Física; EspañaFil: Breijo, M. P.. Departamento de Química Fundamental E Industrial; EspañaFil: Señarís Rodríguez, M. A.. Departamento de Química Fundamental E Industrial; Españ
Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30)
No full textA study of the reliability of the title compounds as a basis for magnetoresistive sensors is presented. For this purpose we have carried out long-term systematic studies of the evolution of the resistive and magnetic properties of samples synthesized by both ceramic and wet chemical routes, allowing them to age during several months. It is observed that, although the magnetic properties remain unaltered, their resistivity does change appreciably. With time, samples that are initially metallic over all the measured temperature range (T < 300 K), change to semiconductor-like behaviour at low temperatures and above their ferromagnetic to paramagnetic phase transition temperature, giving rise to a 'reentrant semiconducting behaviour' with associated high electrical noise, relaxation effects of the resistivity and even diodic behaviour.Fil: Mira, J.. Universidad de Santiago de Compostela. Facultad de Física; EspañaFil: Rivas, J.. Universidad de Santiago de Compostela. Facultad de Física; EspañaFil: Breijo, M. P.. Universidad da Coruña; EspañaFil: Señarís Rodríguez, M. A.. Universidad da Coruña; EspañaFil: Sanchez, Rodolfo Daniel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
raramayo/Bioinformatics: Bioinformatics_Fall_2021
No full textBioinformatics (BIOL651): Fall 2021
Instructor:
Name:
Dr. Rodolfo Aramayo, PhD
Email address:
[email protected]
Office hours:
By appointment
Office location:
Department of Biology
Room 412A, Biological Sciences Building West (BSBW)
Texas A&M University
College Station, TX 77843-3258
Related Courses:
BIOL650: Genomics
BIOL647: Digital Biology
To Do's:
Open an Account with: CYVERSE
Schedule:
DATE
LECTURE
TOPIC(s)
VIDEO(S)
Credits:
Training Materials - ENSEMBL
Introduction
Thu: 2021-10-07
Lecture01
Topic01: ENSEMBL - Introduction to Genome Browsers
Video
Topic02: ENSEMBL - Introduction to ENSEMBL
Video
Topic03: ENSEMBL - Classification of Genes and Transcripts
Video
Topic04: ENSEMBL - Introduction to Gene Annotation
Video
Topic05: ENSEMBL - Introduction to Comparative Genomics
Video
Topic06: ENSEMBL - Downloading Sequences
Video
Topic07: ENSEMBL - Special Note About Downloads
Video
Topic08: ENSEMBL - Comparative Genomics: Accessing Data
Video
Tue: 2021-10-12
Lecture02
Topic09: Introduction to CYVERSE
Topic10: CYVERSE - Genome Annotation
SEQUENCE
BRCA1 Region
Author: Rodolfo Aramayo ([email protected])
License: All content produced in this site is licensed by: CC BY-NC-SA 4.
"A New Technique for Reconstructions of Large Metadiaphiseal Bone Defects"
No full textTumors involving the metadiaphyseal region around the knee are often treated by intraarticular resection (and reconstructed by prosthesis or osteoarticular allografts) even when the subchondral bone could be saved and an intercalary reconstruction applied. This is due to problems associated with the reconstruction of the subarticular diaphyseal bone defects by conventional methods.
Intercalary allografts (as well as cortical autografts) have significant complication rates in terms of delayed union or graft fracture: these would be significantly increased in those patients in whom an adequate osteosynthesis for support is not feasible.
The use of a vascularized fibula alone is contraindicated because it cannot provide sufficient stability for the epiphysis and is too weak to allow early weight bearing.
The Ilizarov technique (bone transportation) is extremely time consuming and it may be at risk in patients under aggressive chemotherapy (pin tract infection, possible interference with callus formation). Furthermore, the thin subarticular segment requires an additional ring across the joint, causing knee stiffness.
The authors describe a new surgical technique to manage this surgical problem. The basic idea consists to bridge the bone defect using a massive allograft as a peripheral shell supporting a centrally placed micro-vascular fibular autograft. This technique was introduced by the first author in 1988 and preliminary results first described by Capanna et al. in 1989 and in 199
Vegetación de los Andes áridos del norte de Chile
No full textSe realiza un estudio de la vegetación del Altiplano y Puna áridos de Chile (24-25º S) utilizando la metodología fitosociológica de Braun-Blanquet. Se proponen nuevos límites altitudinales de los pisos de vegetación en este territorio: supratropical (3.400-3.800 m), orotropical (3.800-4.200 m), criorotropical (4.200-4.700 m), atérmico (> 4.700 m). Como resultado del análisis fitosociológico, fueron reconocidas las siguientes grandes unidades florísticas de vegetación: Ambrosio artemisioidis-Atriplicion imbricatae all. nov. (matorrales desérticos), Calamagrostietea vicunarum Rivas-Martínez & Tovar 1982 (pajonales y matorrales bajos xeromórficos), Anthochloo lepidulae-Dielsiochloetea floribundae Rivas-Martínez & Tovar 1982 (vegetación de roquedales y suelos con solifluxión) y, Plantagini rigidae-Distichietea muscoidis Rivas-Martínez & Tovar 1982 (vegas y bofedales alto-andinos). Se identificaron doce asociaciones florísticas, cada una de las cuales se describe en términos de su composición específica, fisionomía general, distribución geográfica, rango altitudinal y condiciones ambientales. El área de estudio se encuentra en una zona de transición climática. No obstante, la hipótesis de una consecuente transición florística no se ve sustentada, puesto que la flora y vegetación del área de estudio revela fuertes afinidades con el elemento andino subtropical, y no con el elemento andino mediterráneo
AramayoLab/Compara_Lists: v1.0.0
No full text+TITLE: Compara_Lists
+AUTHOR: Rodolfo Aramayo
+EMAIL: [email protected]
Motivation
#+BEGIN_EXAMPLE
My main motivation for this script was reproducibility and replicability, when comparing list of
IDs. Mainly, I wanted to make sure that students evaluating different files used the same set of
commands, thus eliminating any possibility of error.
#+END_EXAMPLE
+BEGIN_SRC
ARAMAYO_LAB
This program is free software: you can redistribute it and/or modify it under the terms of the GNU
General Public License as published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not,
see https://www.gnu.org/licenses/.
SCRIPT_NAME: Compara_Lists_v01.sh
SCRIPT_VERSION: 1.0
USAGE: ./Compara_Lists_v01.sh
-a List A # REQUIRED input (e.g., listA)
-A List A Name # OPTIONAL (e.g., listA)
-b List B # REQUIRED input (e.g., listB)
-B List B Name # OPTIONAL (e.g., listB)
TYPICAL COMMAND: Compara_Lists_v01.sh -a listA -A listA -b listB -B listB
INPUT01: -a FLAG REQUIRED input (e.g., listA)
INPUT01_DEFAULT: No Default. ListA file must be provided
INPUT01_FORMAT: Text file
INPUT01_NOTES: Single column text file
INPUT02: -A FLAG OPTIONAL (ListA_Label)
INPUT02_DEFAULT: listA
INPUT02_FORMAT: Text
INPUT02_NOTES: Optional
INPUT03: -b FLAG REQUIRED input (e.g., listB)
INPUT03_DEFAULT: No Default. ListB file must be provided
INPUT03_FORMAT: Text file
INPUT03_NOTES: Single column text file
INPUT04: -B FLAG OPTIONAL (ListB_Lable)
INPUT04_DEFAULT: listB
INPUT04_FORMAT: Text
INPUT04_NOTES: Optional
DEPENDENCIES: GNU COREUTILS Required (https://www.gnu.org/software/coreutils/)
Author: Rodolfo Aramayo
WORK_EMAIL: [email protected]
PERSONAL_EMAIL: [email protected]
+END_SRC
Development/Testing Environment
#+BEGIN_EXAMPLE
Distributor ID: Ubuntu
Description: Ubuntu 20.04.4 LTS
Release: 20.04
Codename: focal
#+END_EXAMPLE
Script Dependencies
#+BEGIN_EXAMPLE
DEPENDENCIES: GNU COREUTILS Required (https://www.gnu.org/software/coreutils/)
#+END_EXAMPLE
GNU COREUTILS
* Version Numbers
#+BEGIN_EXAMPLE
comm (GNU coreutils) 8.30
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later https://gnu.org/licenses/gpl.html.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Richard M. Stallman and David MacKenzie.
+END_EXAMPLE
+BEGIN_EXAMPLE
comm (GNU coreutils) 8.32
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later https://gnu.org/licenses/gpl.html.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Richard M. Stallman and David MacKenzie.
+END_EXAMPL
Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1)
No full textIn this paper we show the effect of Mn site substitution (≤10%) by Co and Cr on the magnetotransport properties of ceramic samples of La2/3Ca1/3MnO3. Resistivity, magnetization, and magnetoresistance were systematically investigated as a function of doping. An increase in resistivity and a diminution of metal-insulator transition and Curie temperatures was observed as a consequence of both Co and Cr doping. The evolution of the number of neighbors ferromagnetically coupled to Mn was studied in each sample, and the results suggest some degree of ferromagnetic coupling between Cr3+ and Mn ions. Implications of both ferromagnetic Cr 3+-O-Mn3+ superexchange and double exchange interactions are discussed. We also found the existence of an optimum doping level that enhances colossal magnetoresistance. This has been explained considering electron localization due to magnetic disorder induced by doping in the Mn site.Fil: Rivadulla, F.. Universidad de Santiago de Compostela; EspañaFil: López Quintela, M. A.. Universidad de Santiago de Compostela; EspañaFil: Hueso, Luis E.. Universidad de Santiago de Compostela; EspañaFil: Sande, P.. Universidad de Santiago de Compostela; EspañaFil: Rivas, J.. Universidad de Santiago de Compostela; EspañaFil: Sanchez, Rodolfo Daniel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
Compara_lists
No full textScript Title: Compara_Lists
Organization: Aramayolab
Author: Rodolfo Aramayo
Work Email: [email protected]
Personal Email: [email protected]
License: Licensed under GPL-3.0-or-later
Objective:
The main objective for generating this script was reproducibility and replicability, when comparing
list of IDs. Mainly, I wanted to make sure that students evaluating information present in different
files used the same set of commands, thus eliminating any possibility of error
Documentation:
ARAMAYO_LAB
This program is free software: you can redistribute it and/or modify it under the terms of the GNU
General Public License as published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not,
see .
SCRIPT_NAME: Compara_Lists_v01.sh
SCRIPT_VERSION: v1.0.1
USAGE: ${0}
-a List A # REQUIRED input (e.g., listA)
-A List A Name # OPTIONAL (e.g., listA)
-b List B # REQUIRED input (e.g., listB)
-B List B Name # OPTIONAL (e.g., listB)
TYPICAL COMMAND: Compara_Lists_v1.0.1.sh -a listA -A listA -b listB -B listB
INPUT01: -a FLAG Name of a single column text file containing records IDs to be compared (e.g., listA)
INPUT01_DEFAULT: No Default. ListA file must be provided
INPUT01_FORMAT: Single column text file
INPUT01_NOTES: Required
INPUT02: -A FLAG Name of the listA dataset or listA dataset label
INPUT02_DEFAULT: listA
INPUT02_FORMAT: Text
INPUT02_NOTES: Optional. Label will be used to name the output files
INPUT03: -b FLAG Name of a single column text file containing records IDs to be compared (e.g., listB)
INPUT03_DEFAULT: No Default. ListB file must be provided
INPUT03_FORMAT: Single column text file
INPUT03_NOTES: Required
INPUT04: -B FLAG Name of the listA dataset or listB dataset label
INPUT04_DEFAULT: listB
INPUT04_FORMAT: Text
INPUT04_NOTES: Optional. Label will be used to name the output files
DEPENDENCIES: GNU COREUTILS Required (https://www.gnu.org/software/coreutils/)
Author: Rodolfo Aramayo
WORK_EMAIL: [email protected]
PERSONAL_EMAIL: [email protected]
Development/Testing Environment:
Distributor ID: Ubuntu
Description: Ubuntu 20.04.4 LTS
Release: 20.04
Codename: focal
Required Script Dependencies:
GNU COREUTILS (https://www.gnu.org/software/coreutils/)
Tested With Version Numbers: 8.30 and 8.32
8.30:
comm (GNU coreutils) 8.30
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later .
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Richard M. Stallman and David MacKenzie.
8.32:
comm (GNU coreutils) 8.32
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later .
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Richard M. Stallman and David MacKenzie
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