检索结果-南通市图书馆

Effect of Molasses Addition at Ensiling on Ruminal In Situ Dry Matter and Nutrient Degradation of Whole-Plant Soybean Silage Harvested at Different Phenological Stages

在线全文

学校读者我要写书评

暂无评论

Agricultural Sciences 2022年第2期13卷 268-281页

作者： Lucas Ghedin Ghizzi Matheus Rebouças Pupo Celso Heinzen jr. Tiago Antônio Del Valle Francisco Palma Rennó luiz Felipe Ferraretto Department of Animal Nutrition and Animal Production University of Sao Paulo Pirassununga Brazil Department of Animal and Dairy Sciences University of Wisconsin Madison USA Federal University of Santa Maria Santa Maria Brazil

Whole-plant soybean ensiling has limitations and challenges that affect silage fermentation patterns and reduce ruminal nutrient degradation. Perhaps either the addition of molasses at ensiling or harvesting at different phenological stages has the potential to enhance whole-plant soybean silage (WSS) ruminal degradation. This experiment was a completely randomized design with a 3 × 2 factorial arrangement of treatments evaluating the effects of molasses (0 and 40 g/kg fresh forage) and phenological stage (R5: beginning seed, R6: full seed, and R7: beginning maturity) on ruminal in situ degradation. Molasses increased effective ruminal degradability (ERD) of dry matter (DM) regardless of the phenological stage and increased ERD of crude protein at R5 and R6. The addition of molasses at later phenological stages increased ERD of neutral detergent fiber (NDF). There was a molasses × phenological stage interaction effect with greater fractions A and B of NDF at R7 and R5, respectively, but lower undegraded NDF at R5 and R6 with molasses addition. Although the benefits of adding molasses were more pronounced in R5 and R6, adding molasses to whole-plant soybean at ensiling is recommended regardless of phenological stage. Increasing the proportion of digestible nutrients at harvesting either by harvesting at later phenological stages or the addition of molasses is a powerful strategy to manage ruminal degradation of DM and nutrients in WSS.

关键词： Additive In Situ Degradation Ruminal Degradation Parameters Legume Ensiling

Three Different Doses of Intrathecal Morphine as Part of a Multimodal Regimen for Post-Cesarean Delivery Analgesia: A Randomized Double-Blinded Trial

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Obstetrics and Gynecology 2018年第9期8卷 780-789页

作者： Marcio luiz Benevides Rubens Jardim Nochi jr. Carlos Eduardo Solcia Valter Moreira Xavier Júnior Adalberto Francisco Buss Lima Department of Anesthesiology Hospital Geral Universitário Cuiabá Brazil

Brazil is one of the countries that carry out cesarean delivery in the world. The pain after cesarean delivery (CD) is one of the main concerns of parturient. Intrathecal Morphine (ITM) is widely used for the treatment of pain after CD;however, the optimal dose with minimal side effects is to be established. Objectives: To compare the analgesia and side effects resulted by three different doses of ITM as part of a multimodal regimen for post-cesarean delivery analgesia. Methods: One hundred ninety-four patients were sampled in this randomized, double-blinded, three-arm study (group 0.075: ITM 0.75 mg;group 0.1: ITM 0.1 mg and group 0.15: ITM 0.15 mg). All patients received intravenous dexamethasone, dipyrone and ketoprofen. The primary endpoint was pain intensity measured at rest and on movement, while the secondary endpoint was overall satisfaction with pain relief, the incidence of nausea and vomiting, intensity of pruritus, and the use of additional tramadol, antipruritic and antiemetic use within 24 hours after postoperation. Results: The three groups showed similar pain intensity at rest and on movement. The pain intensity on movement was significantly higher than at rest in the groups (p 0.001). There were no significant differences among the groups regarding secondary endpoint. Conclusions: Our findings suggest that in cases of an elective CD, 0.075 mg of ITM produces postoperative analgesia of similar quality that provided by 0.1 or 0.15 mg ITM. The patients should have a multimodal analgesia approach that includes: ITM, anti-inflammatory agents and access to additional systemic analgesic if necessary.

关键词： Spinal Anesthesia Cesarean Delivery Intrathecal Morphine Postoperative Pain Multimodal Analgesia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

合金球墨铸铁的渗硼动力学研究

热处理 2016年第5期31卷 31-37页

作者： Fabio edson Mariani Galtiere Correa Rego luiz Carlos Casteletti Amadeu Lombardi Neto George Edward Totten 本刊编辑部 Universidade de Sao Paulo Universidade Tecnologica Federal do Parana 美国金属学会冷却技术委员会美国波特兰州立大学

渗硼层硬度高,能改善球墨铸铁(以下简称球铁)的摩擦学性能,而等温淬火能提高基体的力学性能。对含Cu、Cu-Ni和Cu-Ni-Mo的合金球铁试样进行了盐浴(硼砂+铝)渗硼,渗硼温度分别为850℃、900℃和950℃,时间2 h和4 h。通过所获得的渗层数据... 详细信息

渗硼层硬度高,能改善球墨铸铁(以下简称球铁)的摩擦学性能,而等温淬火能提高基体的力学性能。对含Cu、Cu-Ni和Cu-Ni-Mo的合金球铁试样进行了盐浴(硼砂+铝)渗硼,渗硼温度分别为850℃、900℃和950℃,时间2 h和4 h。通过所获得的渗层数据确定合金球铁渗硼的扩散系数和激活能。计算求得的扩散系数与通过直接测定渗层厚度得出的扩散系数相接近。含Cu或Cu-Ni的试样激活能为141.27 kJ/mol,而含Cu-Ni-Mo的试样激活能为212.98 kJ/mol。统计参数与相关系数(尺)吻合良好。

关键词：合金球铁渗硼扩散系数激活能

A Review of Telemetry Data Transmission in Unconventional Petroleum Environments Focused on Information Density and Reliability

在线全文

学校读者我要写书评

暂无评论

Journal of Software Engineering and Applications 2015年第9期8卷 455-462页

作者： Ivamberg Navarro de Almeida jr. Pedro Duarte Antunes Felipe Orlando Centeno Gonzalez Roberto Akira Yamachita Andreas Nascimento Jose luiz Goncalves Instituto de Sistemas Elétricos e Energia Universidade Federal de Itajubá (ISEE/UNIFEI) Itajubá Brazil Departamento de Engenharia Mecanica/PRH48 Faculdade de Engenharia Campus de Guaratinguetá Universidade Estadual Paulista (FEG/UNESP) Guaratinguetá Brazil

The paper addresses a literature review of the technologies used in the transmission of measuring and logging data during well drilling. It presents a discussion about efficiency in data density transmission and reliability, especially when it comes to software and automated tools. Initially, this paper analyzes the principle of the telemetry systems, considering the mud pulse telemetry, acoustic telemetry, electromagnetic telemetry and wired drill pipe telemetry. They were detailed highlighting information about functionality, data transmission and its linkage to supporting software. Focus is also given to details of the main advantages and disadvantages of each technology considering the influences of lithology, drilling fluid and formation fluids in the reliability and capacity of data transmission.

关键词： LWD MWD Mud-Pulse Wired-Drill-Pipe Drilling Fluid Telemetry Transmission

Idiopathic dilated cardiomyopathy in pregnancy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Obstetrics and Gynecology 2013年第5期3卷 438-440页

作者： Joao Paulo Candido Barbosa Maria Regina Melo da Justa Feijao Francisco Herlanio Costa Carvalho Carlos Augusto Alencar jr. Francisco edson de Lucena Feitosa Federal University of Ceara FortalezaBrazil Department of Obstetrics Federal University of CearaFortalezaBrazil

The aim of this study was to highlight the importance of knowledge of idiopathic dilated cardiomyopathy (IDC) in pregnancy and its complications, with the order to establish early diagnosis and treatment. We report the case of a primigravida aged 17, previously healthy, 18 weeks of gestation with dyspnea at rest, which started 2 weeks ago. During the investigation, the echocardiogram (ECO) showed left ventricle (LV) dilation with impaired systolic and diastolic function, LV ejection fraction of 20%. We did not identify a cause for the patient’s clinical condition, being diagnosed with IDC. The patient remained in obstetrics and cardiology monitoring for up to 23 weeks of gestation, when it was decided by the interruption of pregnancy by caesarean section due to hemodynamic instability. The newborn came to death four days after the procedure. The patient evolved to clinical improvement, 16 days after the resolution of gestation, was discharged for outpatient monitoring.

关键词： Cardiomyopathy Pregnancy Dyspnea at Rest Caesarean Section

COVID-19 Downgraded Already Impaired Mental Health of Medical Undergraduates during the Pandemic Years

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Biosciences and Medicines 2023年第5期11卷 166-180页

作者： Rodrigo Corrêa Falcão Rodrigues Alves Rodolffo da Silva Fossa Vinicius de Calasans Timaco José Mariano Soares de Moraes Emilio Magalhães Martins Will Rinaldo Henrique Aguilar da Silva luiz Antonio Vane Joaquim edson Vieira Matheus Fachini Vane Faculdade de Ciências Médicas de Sã o José dos Campos S&atildeo José dos Campos Brazil Department of Anesthesiology Juiz de Fora Federal University Juiz de Fora Brazil Department of Anesthesiology Clinics Hospital University of S&atildeo Paulo Medical School S&atildeo Paulo Brazil Discipline of Anesthesiology Department of Surgery University of S&atildeo Paulo Medical School S&atildeo José dos Campos Brazil

Background: Measures to contain the COVID-19 transmission reached teaching routines of universities worldwide with possible mental health consequences for anxiety. This study assessed prevalence and risk factors for stress, depression, and anxiety (SDA) in medical students during quarantine by COVID-19. Methods: A cross-sectional observational study of medical students by means of the DASS-21 questionnaire. Risk factors for SDA were assessed based on epidemiologic questions related to COVID-19. Receiver Operating Characteristics (ROC) curves were calculated for each predictor, as well as sensitivity and specificity. Results: This survey reached 1009 responses. A prevalence of 77.5% for some SDA disorder was found, 63% being severe. Previous diagnosis of psychiatric disorder was a factor of risk for anxiety (OR 2.78 CI95% 1.44 - 14.25, p = 0.044), as well as for depression (OR 3.37 CI95% 1.98 - 6.02, p Conclusion: Psychiatric conditions as well as chronic illnesses were risk factors for high prevalence of anxiety, depression and stress during the COVID-19 pandemic among medical students.

关键词： Mental Health COVID-19 Students Medical Surveys and Questionnaires

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

灰口铸铁的等温淬火和渗硼等温淬火

热处理 2016年第1期31卷 34-38页

作者： Gustavo Bortoluci de Assis Fábio edson Mariani Amadeu Lombardi Neto George Edward Totten luiz Carlos Casteletti Universidade de Sao Paulo Brazil Universidade Tecnologica Federal do Parana Brazil Portland State University United States of America

等温淬火能显著改善灰口铸铁的力学性能,而通过渗硼等化学热处理提高其表面硬度能进一步扩展它的应用范围。本文研究用灰口铸铁试样的成分为3.6%C-2.1%Si-0.43%Mn-0.26%Cr-bal Fe。等温淬火工艺采用900℃奥氏体化,随后在240℃、300℃和... 详细信息

等温淬火能显著改善灰口铸铁的力学性能,而通过渗硼等化学热处理提高其表面硬度能进一步扩展它的应用范围。本文研究用灰口铸铁试样的成分为3.6%C-2.1%Si-0.43%Mn-0.26%Cr-bal Fe。等温淬火工艺采用900℃奥氏体化,随后在240℃、300℃和360℃的盐浴中分别保持1 h、2 h、3 h和4 h后空冷。对另一组试样进行渗硼等温淬火处理,其工艺为在950℃熔融硼砂中渗硼2-4 h,随后在240℃、300℃和360℃盐浴中分别保持1 h、2h、3 h和4 h后空冷。这种工艺不需为了等温淬火而另外加热。通过试样显微硬度的测定和黏着磨损性能试验发现,等温淬火显著提高了灰口铸铁的性能,而渗硼等温淬火则更进一步改善了灰口铸铁的性能。

关键词：灰口铸铁硼化物等温淬火渗硼-等温淬火黏着磨损

Alpha-Tomatin against Witches’Broom Disease

在线全文

学校读者我要写书评

暂无评论

American Journal of Plant Sciences 2014年第5期5卷 596-604页

作者： luiz Humberto Gomes Keila Maria Roncato Duarte Felipe Gabriel Andrino Gildemberg Amorin Leal jr Lia Matelli Garcia Antonio Figueira Simone Possedente de Lira Laboratory of Natural Products Environmental ChemistryDepartment of Exact SciencesEscola Superior de Agricultura“Luiz de Queiroz”Universidade de Sao PauloPiracicabaBrazil Institute of Animal Science and Pastures Nova OdessaBrazil Federal University of Alagoas MaceioBrazil Centro de Energia Nuclear na Agricultura Universidade de Sao PauloPiracicabaBrazil

Several plants use secondary metabolites against insects and pathogens attack. Among such metabolites known glycoalkaloids are the most studied. Plants from Solanaceae Family are the most abundant on those alkaloids. Despite alfa-tomatine is a known glycoalkaloid, its specific action against Moniliophthora perniciosa, fungi responsible for witches broom disease in cocoa plantations was obtained in this work. Alfa-tomatine was infusion-extracted from Solanum lycopersicum leaves, and its action against the fungi growth was shown on the bioassays. In these tests, M. perniciosa growth was totally inhibited but other fungus tested, the inhibition was not totally, or did not present effect on growth, showing in this way, the specificity of alfa-tomatine to M. perniciosa. The advantages of work with a natural molecule for the fungi control is the stability of the molecule, its resistance to high temperature and pressure and for its use, the simple method of extraction used. The confirmation of the alfa-tomatine molecule was done by High Performance Liquid Chromatography and Mass Spectrometry in comparison to the Sigma standard.

关键词： Cocoa Glycoalkaloids Solanaceae

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

固体法制备碳化铌渗层的灰口铸铁的耐磨性能

热处理 2016年第3期31卷 27-30页

作者： Fábio edson Mariani Gustavo Bortoluci de Assis luiz Carlos Casteletti Amadeu Lombardi Neto George Edward Totten Universidade de Silo Paulo Silo Carlos Silo Paulo Brazil Universidade Tecnologiea Federal do Parana Londrina Parana Brazil Portland State University Portland Oregon USA

灰口铸铁由于其成本低廉、减振和切削加工性能良好获得应用。这些突出优点源自游离态石墨的存在和液态金属的良好流动性,后者有利于制作形状复杂的薄壁铸件。适合的渗层能改善灰口铸铁的耐磨性,从而扩大其应用范围。高硬度的碳化铌可以... 详细信息

灰口铸铁由于其成本低廉、减振和切削加工性能良好获得应用。这些突出优点源自游离态石墨的存在和液态金属的良好流动性,后者有利于制作形状复杂的薄壁铸件。适合的渗层能改善灰口铸铁的耐磨性,从而扩大其应用范围。高硬度的碳化铌可以达到这一目的。本文研究用的灰口铸铁试样成分为3.47%C-2.39%Si-0.55%Mn-0.15%Ni-0.65%Cu-Fe(余量),采用Fe-Ni合金、NH_4Cl和Al_2O_3的粉末混合物进行热反应扩散渗铌,温度900℃,时间2 h。碳化铌渗层的硬度可达2 000 HV,微黏着磨损和微磨粒磨损试验证明,固体渗铌处理可显著提高灰口铸铁的耐磨性。

关键词：灰口铸铁渗铌碳化铌耐磨性