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Effect of Thickness on Magnetic Dipolar and Exchange Interactions in SmCo/FeCo/SmCo Thin Films

Advances in Materials Physics and Chemistry 2015年第9期5卷 368-373页

作者： Carlos Ivan Rodriguez Rodriguez Jose Rurik farias Mancilla Karla Edith Vega Chavez Francisco Espinosa Magana Sion Federico Olive Mendez Jose Trinidad Elizalde Galindo Instituto de Ingenieria y Tecnologia Universidad Autonoma de Ciudad JuarezCiudad JuarezMexico Universidad Tecnologica de Ciudad Juarez Ciudad JuarezMexico Centro de Investigacion de Materiales Avanzados(CIMAV) ChihuahuaMexico

SmCo/FeCo/SmCo trilayer was deposited with two different thickness configurations for soft phase (FeCo);50 nm/10 nm/50 nm and 50 nm/25 nm/50 nm were deposited on Si (111) substrate and Ta (50 nm) seed layer by RF magnetron sputtering in a pressure, p, of 30 - 35 m Torr. After deposition the films were annealed under Ar atmosphere at temperature T equal to 923 and 973 for different times followed by quenching in water. X-ray diffraction patterns were obtained to identified phase presents and calculate average crystallite size. To study the effect of configuration thickness in soft phases, DC magnetic measurements were carried out;the measurements were done in the temperature interval of 300 - 50 K. Hysteresis loops collected at low temperatures exposed an increment in coercivity with the decrease of T and at same time, presented a “knee” in the second quadrant of the demagnetization curve, which suggests that the inter-layer exchange coupling becomes less effective, being more evident for sample with 50 nm/25 nm/50 nm thickness. Moreover, δM (H) plots were calculated from magnetic measurements at three different temperatures, T, equal to 300, 150 and 50 K, which corroborates that the dipolar interactions became stronger when thickness of soft phases increases. Finally, the thickness effect is attributed to the SmCo5 phase magnetocrystalline anisotropy constant, which is responsible for the exchange coupling length.

关键词： Exchange Interactions Dipolar Interaction Anisotropy

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Eosinophilic Granulomatosis with Polyangiitis and Bowel Perforation: Case Report

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Journal of Pharmacy and Pharmacology 2022年第11期10卷 283-287页

作者： PauloÁtila da Silva Viana Leonardo de Oliveira Cavalcante Liz Miranda Mateus Lara farias Lustosa da Costa Deborah Giovanna Santana Rabelo Medical Residency in Rheumatology General Hospital Dr.Cesar CalsCeará60.015-050Brazil Service Coordinator Medical Residency in Rheumatology General Hospital Dr.Cesar CalsCeará60.015-050Brazil Medical-Academic League of Rheumatology of Fortaleza Christu University CenterFortaleza 60.160-230Brazil Medical-Academic League of Rheumatology of Fortaleza Cearástate UniversityFortaleza 60.714-903Brazil

The small and medium sized vessels vasculitis included in the group of vasculitis associated with anti-neutrophil cytoplasmic antibodies,is a rare disease characterized by the presence of vasculitis in association with asthma and *** objective of this report is to describe a case with a typical initial presentation of eosinophilic granulomatosis with polyangiitis-EGPA,that evolved with atypical clinical manifestations and findings in complementary *** the clinical evolution and comprehending the therapeutic response of the patient in question,with scientific embasement on published medical literature.

关键词： Granulomatosis with polyangiitis Vasculitis Asthma Eosinophilia Acute abdomen

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Aggressive dorsal Vertebral Hemangioma Causing Compressive Mielopathy

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Open Journal of Medical Imaging 2021年第3期11卷 85-91页

作者： Ana Carla farias Pimentel Mariana Santos Leite Pessoa Francisca Estefânia Mesquita Maciel de Lima Manuel Joaquim Diógenes Teixeira Cláudio Régis Sampaio Silveira Ana Carla farias Pimentel MD Radiologist Hospital Geral de Fortaleza (HGF) Fortaleza-CE Brazil Mariana Santos Leite Pessoa MD Radiology Resident Hospital Geral de Fortaleza (HGF) Fortaleza-CE Brazil Francisca Estefania Mesquita Maciel de Lima MD Pathologist Laboratório Mikros Fortaleza-CE Brazil Manuel Joaquim Diógenes Teixeira MD Orthopedist Hospital Geral de Fortaleza (HGF) Fortaleza-CE Brazil Cláudio Régis Sampaio Silveira MD Radiologist Hospital Geral de Fortaleza (HGF) Fortaleza-CE Brazil Hospital S?o Carlos Fortaleza-CE Brazil

Vertebral hemangiomas are common benign lesions of the spine, characterized by abnormal vascular proliferation, being commonly asymptomatic incidental findings, presenting symptoms in only a small portion of affected individuals. In a smaller number of cases, however, hemangiomas can present an expansive effect and extra-osseous extension, determining a mass effect and neurological symptoms, being therefore called aggressive hemangiomas. On MRI, aggressive hemangiomas are characterized by having a larger vascular component and a smaller fat component, thus producing a low signal on T1-weighted images. We illustrate the case of a young male patient who presented with pain in the upper thoracic spine, who developed paraparesis and ascending sensory deficit and progressive lower limbs, progressing to paraplegia and loss of sphincter control.

关键词： Aggressive Vertebral Hemangioma Compressive Myelopathy Magnetic Resonance Imaging

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Impacts of Residual Phosphorus on the Production of Cowpea in the Cerrado Region

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American Journal of Plant Sciences 2018年第4期9卷 645-658页

作者： Jair da Costa Gaspar Marileia Barros Furtado Welder José dos Santos Silva Isaías dos Santos Reis Nítalo André farias Machado Maryzélia Furtado de farias Jomar Livramento Barros Furtado Hosana Aguiar Freitas de Andrade Raquel da Silva Sobral Luisa Julieth Parra-Serrano Khalil de Menezes Rodrigues Raissa Rachel Salustriano Silva-Matos Center of Agrarian Sciences and Environmental Federal University of Maranhao Chapadinha Brazil Center of Agrarian Sciences Federal University of Piauí Teresina Brazil Faculty of Agrarian and Veterinary Sciences State University Paulista Júlio de Mesquita Filho UNESP Sao Paulo Brazil Exact and Technological Science Center State University of Western Paraná Cascavel Brazil

Phosphate fertilizers when applied to the soil, besides being harvested by the crops, promote a residual effect that can be offered to subsequent crops. The objective of this research was to evaluate the residual effect of phosphate fertilization applied to maize cultivation on the successor crop, cowpea, in the Cerrado region in Maranhao. The research was carried out in the experimental area of Federal University of Maranhao (UFMA), located in the city of Chapadinha, MA (3°44'30"S, 43°21'37''W). The experimental design was in randomized blocks, with six treatments and four replications. The treatments were composed of the following residual P doses: 0, 60, 70, 80, 90, 100 kg·ha-1 of P2O5. The cultivation of cowpea (cultivar BRS guariba) was sown at a spacing of 1.0 × 0.20 m. The cowpea proved to be efficient in the use of residual phosphate fertilization, since it promoted grain yield close to the national average. The cultivation of cowpea in previously cultivated areas is feasible, in order to take advantage of the residual phosphate fertilization in the Cerrado of East of Maranhao. The phosphorus dose applied in the predecessor crop corresponding to 80 kg·ha-1 of P2O5 promoted higher grain yield (393.44 Mg·ha-1) and a greater profit margin (US $326.26). Thus, it is feasible to grow cowpea in previously cultivated areas, in order to take advantage of residual phosphate fertilization.

关键词： Fertilizing Vigna unguiculata L. Walp Phosphate Fertilization Residue

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Scalp Melanoma Treated with Ipilimumab in Elderly Patient： A Complete Response to Treatment--Case Report

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Journal of Pharmacy and Pharmacology 2017年第1期5卷 1-4页

作者： Juliana Ramos Chaves Filipe Rocha da Silva Lucas Ivanilson Guedes Henriques Silva Thiago farias Camara Luis Eduardo Wemeck de Carvalho Jonathan Souza Sarraf Oncologica Brasil--Education and Research Belem-PA 66053-000 Brazil Mecicine Faculty Universidade do Estado do Para Belem-PA 66087-670 Brazil Medicine Faculty Centro Universitario do Estado do Para Belem-PA 66613-903 Brazil Medicine Faculty Universidade Federal do Para Belem-PA 66075-110 Brazil

Melanoma is a malignant neoplasm that affects the melanocytes. Its treatment is based on cancer staging. In immunotherapy, it can be pointed out the ipilimumab, used in the systemic therapy for unresectable and/or metastatic melanoma in the first or the second line treatment with increased survival. However, limiting toxicity and the low complete response discourage its use in the elderly patients. The aim of this study is to report the case of an 83-year-old man, white, with scalp melanoma measuring 3.5 cm in its major axis. After two resections was verified that the deep margin was involved, making the lesions unresectable. The evaluation of distant metastasis, by skull, chest and abdomen CT-scan （computed tomography-scan）, was performed and did not detect the presence of any metastatic loci. The patient underwent the first cycle of chemotherapy with DTIC （dacarbazine） protocol. After the first cycle, the medication was discontinued due to significant myelotoxicity and Grade 3 thrombocytopenia. Underwent second line treatment with ipilimumab by four cycles. After this, the patient follow with complete local response, asymptomatic, with no signs of local recurrence or distant metastasis site, and no limiting toxicity during and after a year of treatment with ipilimumab. Thus, it is possible to suggest that the use of ipilimumab isolatedly as a second line treatment may have a good response even in elderly patients.

关键词： Scalp melanoma ipilimumab elderly patients.

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Differential effect of biotin on carboxylase activity and mice skeletal muscle metabolism

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Advances in Bioscience and Biotechnology 2013年第7期4卷 43-50页

作者： Marco Antonio Parra Montes de Oca Gabriel Gutierrez-Ospina Pablo Hofmann Salcedo Alma Lilia Fuentes-farias Esperanza Melendez-Herrera Margarita Gomez-Chavarin Armida Baez-Saldana Departamento de Biologia Celular y Fisiologia Instituto de Investigaciones BiomedicasUniversidad Nacional Autonoma de MexicoCiudad UniversitariaD.F.Mexico Laboratorio de Eco-fisiologia Animal Instituto de Investigaciones sobre los Recursos NaturalesUniversidad Michoacana de San Nicolas de HidalgoMoreliaMexico

In mammalian skeletal muscle there are four carboxylases involved in several biochemical processes like gluconeogenesis, tricarboxylic acid cycle anaplerosis, metabolism of fatty acids and metabolism of various amino acids. It has been shown that biotin deficiency reduces body weight at the expense of muscular mass. When necessary, the liver uses skeletal muscle protein to provide glucose and amino acids to organs in need of such compounds. In this paper we analyzed carboxylase specific activities in hind limb skeletal muscle of 3 weeks old BALB/c male mice, at 0, 1, 4, 7, and 14 days of a specific diet with different biotin concentrations. Biotin was used at 0.0, 1.8 or 98.2 mg per kg of food;and was referred to as biotin deficient, sufficient and supplemented, respectively. Water and food supply and consumption by the three groups of mice were the same. Therefore, the observed effects were directly related to biotin ingestion. The body weight of biotin supplemented mice was the same as the body weight of mice in the biotin sufficient group, while biotin deficiency caused body weight reduction after 7 days of biotin depletion. We found that the total protein concentration in the vastus lateralis muscle is associated with the biotin content in the diet. After 7 days, the muscle total protein content was lower in mice of the biotin deficient group while it was higher in the mice from the biotin supplemented group

关键词： Biotin Deficiency Biotin Supplementation Biotin Sufficiency Skeletal Muscle Carboxylases Body Growth

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Numerical Study of Oil/Water Separation by Ceramic Membranes in the Presence of Turbulent Flow

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Advances in Chemical Engineering and Science 2012年第2期2卷 257-265页

作者： Josedite Saraiva de Souza Tássia Mota Vieira Enivaldo Santos Barbosa Acto de Lima Cunha Severino Rodrigues de farias Neto Antonio Gilson Barbosa de Lima Department of Chemical Engineering Center of Sciences and Technology Federal University of Campina Grande (UFCG) Campina Grande Brazil Department of Mechanical Engineering Center of Sciences and Technology Federal University of Campina Grande (UFCG) Campina Grande Brazil

Disposal of produced water during petroleum extraction causes serious environmental damage, hence the need to complete the water treatment before being disposed to environment within the criteria set established by environmental agencies in the countries. Ceramics membranes have been highlighted as a good device for separating oil/water. These act as a barrier to oil in the aqueous stream, because their essential properties for filtration, such as chemical inertness, biological stability and resistance to high temperatures. The limitation of the separation process is the decay of permeate flux during operation, due to concentration polarization and fouling. In this sense, this paper aims to evaluate numerically the feasibility of the process of separating oil/water by means of ceramic membranes in the presence of a turbulent flow induced by a tangential inlet. The results of the velocity, pressure and volumetric fraction distributions for the simulations different by varying the mass flow rate inlet and different geometric characteristics of the membrane are presented and analyzed.

关键词： Ceramic Membranes Separation Two-Phase Flow Numerical Simulation

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Inactivation of Air-Suspended-Cells Through Ion Energy

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材料科学与工程（中英文A版） 2022年第3期12卷 81-86页

作者： Manuel Borja Salin Roger Bartolo Alarcon Claudia Paniagua Homobono Daniel Morales Diaz Enoc Espinosa farias Sergio Flores Gonzalez Darío Hernández Escalera Hilda Moreno Saavedra Chemical Engineering Department National Technological Institute of MexicoTechnological Institute of TolucaMetepecEdo de México Mechatronic Engineering Department National Technological Institute of MexicoTechnological Institute of TolucaMetepec Edo de México Postgraduate Studies and Research Division Metepec Edo de MéxicoCp.52149México

Cold plasma at room temperature and pressure is an emerging and novel tool for the inactivation of cell derived from its ionic energy,which is capable of breaking bonds such as carbon-carbon,carbon-hydrogen,carbon-oxygen,among others,these being the ones that support the biological structure of *** work tries to create its own infrastructure that includes a high voltage source,an infrared trigger which reduces the effect of the ozone created,an ionic reactor in which the plasma acts at atmospheric temperature and pressure,and a magnetic field that allow aligning the plasma to the combined processes that are carried out.

关键词： Cold plasma at room temperature and pressure inactivation of cells ionic energy

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Impact of Cluster Thinning on Quality of“Malbec”Grapes in Encruzilhada do Sul-RS

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American Journal of Plant Sciences 2018年第3期9卷 495-506页

作者： Maria Inez Lopes Fernandes de Barros Dianini Brum Frolech Letícia Leal de Mello Roberta Manica-Berto Marcelo Barbosa Malgarim Vagner Brasil Costa Paulo Mello-farias Departamento de Fitotecnia Universidade Federal de PelotasPelotasBrazil Tríade-Comunicacao Científica PelotasBrazil Universidade Federal do Pampa Campus Dom PedritoDom PedritoBrazil

The cultivar Malbec has been present’s good performance and quality in the South Half of Rio Grande do Sul (RS). In this context, we aimed to evaluate the quality of “Malbec” grapes in relation to the phytotechnical, physicochemical parameters and bioactive compounds under different intensities of cluster thinning in Encruzilhada do Sul-RS. The experiment was carried out in a commercial vineyard in the 2015/16 with the cultivar Malbec (Vitis vinifera L.) under rootstock “1103 Paulsen”, with spacing of 2.2 m between rows and 1.1 m between plants. The experimental design was of randomized complete blocks with five replications. The treatment factor tested was the cluster thinning, with four levels (0%, 10%, 30% and 50%), performed in véraison. The evaluated phytotechnical variables were cluster length, cluster fresh weight, berries fresh weight, number of berries, rachis fresh weight. Also what were determined are the number of clusters, production and Ravaz index. The physicochemical variables verified were pH, soluble solids (SS), titratable acidity (TA) and SS/TA ratio. The bioactive compounds were total polyphenols index and total anthocyanins. The appropriate balance between source and sink, by the Ravaz index, occurs to zero and 10% of cluster thinning. The “Malbec” grapes present an increase of the maturation index (SS/TA) at 50% of cluster thinning, due to the low titratable acidity at this level. The total polyphenols index has a larger increment when the plants are submitted to the cluster thinning of 10%, providing a larger quality to the fruits. At all the levels of cluster thinning tested, when compared to the control, there was a greater contribution of total anthocyanins in the berries.

关键词： Vitis vinifera Maturation Index Bioactive Compounds Ravaz Index Polyphenols

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Studying Some Brain and Ovarian Morphological Traits in Diaglena spatulata Female Frogs Thriving in Conserved and Perturbed Habitats:A Preliminary Report and Its Implications for Amphibian Survival and Continuity

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Advances in Bioscience and Biotechnology 2014年第9期5卷 740-747页

作者： Esperanza Melendez-Herrera Bryan Victor Phillips-Farfan Fany Edith Bucio-Pina Noemi Ramirez-Arres Gabriel Gutierrez-Ospina Ireri Suazo-Ortuno Javier Alvarado-Diaz Alma Lilia Fuentes-farias Laboratorio de Ecofisiologia Animal Departamento de ZoologiaInstituto de Investigaciones sobre los Recursos NaturalesUniversidad Michoacana de San Nicolas de HidalgoMoreliaMéxico Laboratorio de Nutricion Experimental Instituto Nacional de PediatriaSecretaria de SaludMexico Distrito FederalMexico Laboratorio de Biologia de Sistemas Departamento de Biologia Celular y FisiologiaInstituto de Investigaciones BiomedicasCoordinacion de Psicobiologia y NeurocienciasFacultad de PsicologiaUniversidad Nacional Autonoma de MexicoMexico Distrito FederalMexico Laboratorio de Ecologia Departamento de ZoologiaInstituto de Investigaciones sobre los Recursos NaturalesUniversidad Michoacana de San Nicolas de HidalgoMoreliaMexico Laboratorio de Herpetologia Departamento de ZoologiaInstituto de Investigaciones sobre los Recursos NaturalesUniversidad Michoacana de San Nicolas de HidalgoMoreliaMexico

Amphibians are thought to be highly susceptible to perturbed environments. However, recent studies show that many of them are successful inhabitants of disturbed, fragmented habitats. The source of this resilience is yet unclear, but it may be the byproduct of having a robust phenotype and/or the result of phenotypic plasticity. We then assessed the contribution of each by evaluating cytological features of two brain nuclei that modulate reproductive behavior and of the ovary, using female specimens of the frog Diaglena spatulata prospering in conserved and disturbed areas of a tropical dry forest. Our results in the brain show that the medial amygdala, but not the preoptic area, had a reduced size in frogs collected in disturbed forests compared to specimens collected in conserved forests. Both brain nuclei displayed, however, neurons with a reduced size in frogs captured in disturbed forest patches. In contrast, ovarian cytological features were similar between groups. Our preliminary results lead us to propose that Diaglena spatulata female specimens might combine robust ovary and plastic brain’s phenotypic traits to confront disturbed environments. This, however, is still a working hypothetical framework that needs to be experimentally confirmed.

关键词： Amphibians Reproductive Traits Amygdala Medial Preoptic Area Ovary

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