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Algorithms for Computing Some Invariants for Discrete Knots

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Applied Mathematics 2013年第11期4卷 1526-1530页

作者： gabriela Hinojosa David Torres Rogelio Valdez Facultad de Ciencias Universidad Autónoma del Estado de Morelos Cuernavaca México

Given a cubic knot K, there exists a projection? of the Euclidean space R3?onto a suitable plane ?such that p(K) is a knot diagram and it can be described in a discrete way as a cycle permutation. Using this fact, we develop an algorithm for computing some invariants for K: its fundamental group, the genus of its Seifert surface and its Jones polynomial.

关键词： Cubic Knots Discrete Knots Algorithms

CCL4 Levels Differ between Aspirin-Tolerant and Aspirin-Intolerant Patients with Asthma

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Health 2017年第11期9卷 1467-1474页

作者： Juan Raymundo Velazquez gabriela Soid-Raggi Luis Manuel Teran Gandhi Fernando romero-Pavon Fernando Ramírez-Jimenez Instituto Nacional de Enfermedades Respiratorias (INER) Mexico City Mexico Facultad de Ciencias Universidad Nacional Autónoma de México (UNAM) Mexico City Mexico

Aspirin-exacerbated respiratory disease (AERD) is an asthma phenotype characterized by nasal polyps, chronic hypertrophic eosinophilic sinusitis, asthma, and sensitivity to aspirin. Unawareness of this disease by patients and their physicians may have serious consequences because of the risk of near-fatal asthma. Its confirmative diagnosis can be established only by provocative aspirin challenge, which represents a potential risk for patient health. Purpose: Because CCL4 plays an important role in several pulmonary conditions, we tested its immunoreactivity in nasal lavages and sera from control subjects, and from aspirin-sensitive and non-aspirin-sensitive patients. Method: Immunoreactivity of CCL4 was measured in serum and nasal lavages from 30 healthy controls (HC), 23 patients with AERD, and 20 patients with aspirin-tolerant asthma (ATA). Additionally, a serum biobank contained sera from 90 HC, 83 patients with AERD, and 69 patients with ATA was employed. Results: The serum immunoreactivity of CCL4 could distinguish both types of asthma phenotypes. Conclusion: CCL4 may play an unexpected role in thephysiopathology of AERD.

关键词： AERD CCL4 Asthma

Analysis of Perinatal Outcomes of Twin Pregnancy in a Referral Hospital for High Risk

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Medical management of symptomatic severe aortic stenosis in patients non-eligible for transcatheter aortic valve implantation

Open Journal of Obstetrics and Gynecology（妇产科期刊） 2024年第7期 983页

作者： Eduarda Paim Pedro Lucas Carneiro Ferreira Luciano Selistre Fernanda Grossi José Mauro Madi gabriela Françoes Rostirolla

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Journal of Geriatric Cardiology 2020年第11期17卷 704-709页

作者： gabriela Silvia Gheorghe Andreea Simona Hodorogea Andrei Cristian Dan Gheorghe Ioan Tiberiu Nanea Ana Ciobanu University of Medicine and Pharmacy Carol Davila BucharestProf.Dr.Th.Burghele HospitalBucharestRomania

1 Transcatheter aortic valve implantation in symptomatic severe aortic stenosis: where do we stand? Aortic stenosis occurs in 2%-9% of patients over the age of 65, the most common cause being degenerative.^([1,2]) The preferred treatment in symptomatic severe aortic stenosis(SAS) is surgical aortic valve replacement(SAVR), but in the elderly, the surgical risk can be greater than the benefit.([3]).

关键词： Angiotensin-converting enzyme inhibitors Beta-blockers Calcium channel blockers Diuretics Symptomatic severe aortic stenosis Transcatheter aortic valve implantation

Application of polyurethane geocomposites to help maintain track geometry for high-speed ballasted railway tracks

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2012年第11期13卷 836-849页

作者： Peter Keith WOODWARD Abdellah EL KACIMI Omar LAGHROUCHE gabriela MEDERO Meysam BANIMAHD Institute for Infrastructure and Environment School of the Built EnvironmentHeriot-Watt UniversityEdinburghEH14 4ASUK

There are many issues surrounding the performance of critical assets on high-speed ballasted railway *** assets like switch & crossings and bridge transitions high track forces can be produced resulting in higher ballast settlements and hence track *** latter result in higher track forces and hence more settlement,leading to the need for increased track maintenance to ensure comfort and *** technologies for solving issues like ballast movement under high-speed loading regimes are ***,a technique that has been well used across the UK and now increasingly overseas to stabilise and reinforce ballasted railway tracks is the application of in-situ polyurethane polymers,termed *** paper discusses how this technique can be used to solve these types of long-standing issues and presents actual polymer application profiles at two typical critical sites,namely a junction and a transition onto concrete slab-track.

关键词： Railways Polyurethanes Geocomposites Modelling High-speed

Oxidative stress, antioxidants and intestinal calcium absorption

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World Journal of Gastroenterology 2017年第16期23卷 2841-2853页

作者： gabriela Diaz de Barboza Solange Guizzardi Luciana Moine Nori Tolosa de Talamoni Laboratorio“Dr.Fernando Canas” Cátedra de Bioquímica y Biología MolecularFacultad de Ciencias MédicasINICSA(CONICET-Universidad Nacional de Córdoba)Pabellón ArgentinaCiudad UniversitariaCórdoba 5000Argentina

The disequilibrium between the production of reactive oxygen(ROS) and nitrogen(RNS) species and their elimination by protective mechanisms leads to oxidative stress. Mitochondria are the main source of ROS as by-products of electron transport chain. Most of the time the intestine responds adequately against the oxidative stress, but with aging or under conditions that exacerbate the ROS and/or RNS production, the defenses are not enough and contribute to developing intestinal pathologies. The endogenous antioxidant defense system in gut includes glutathione(GSH) and GSH-dependent enzymes as major components. When the ROS and/or RNS production is exacerbated, oxidative stress occurs and the intestinal Ca2+ absorption is inhibited. GSH depleting drugs such as DLbuthionine-S,R-sulfoximine, menadione and sodium deoxycholate inhibit the Ca2+ transport from lumen to blood by alteration in the protein expression and/or activity of molecules involved in the Ca2+ transcellular and paracellular pathways through mechanisms of oxidative stress, apoptosis and/or autophagy. Quercetin, melatonin, lithocholic and ursodeoxycholic acids block the effect of those drugs in experimental animals by their antioxidant, anti-apoptotic and/or anti-autophagic properties. Therefore, they may become drugs of choice for treatment of deteriorated intestinal Ca2+ absorption under oxidant conditions such as aging, diabetes, gut inflammation and other intestinal disorders.

关键词： Transcellular and paracellular Ca2+pathways DL-buthionine-S R-sulfoximine Menadione Sodium deoxycholate Lithocholic acid Ursodeoxycholic acid Melatonin

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“是中国选择了我!”

国际人才交流 2024年第9期 41-41页

作者： gabriela Cristina Teixeira Netto do Nascimento 河北传媒学院

每当有人问我为什么选择在中国生活的时候,我会毫不犹豫地说:“是中国选择了我!”我觉得学习一门与我的母语在各个方面都完全不同的语言使我感到兴奋。在我的脑海里,我只想着它有多么迷人。我的第一位老师是魏老师,一位来自天津外国语... 详细信息

每当有人问我为什么选择在中国生活的时候,我会毫不犹豫地说:“是中国选择了我!”我觉得学习一门与我的母语在各个方面都完全不同的语言使我感到兴奋。在我的脑海里,我只想着它有多么迷人。我的第一位老师是魏老师,一位来自天津外国语大学的非常可爱的女士。魏老师的课堂有趣、幽默、引人入胜,让我越来越爱汉语和中国文化。我非常喜欢汉语,每次回家我都会讲给我的家人听。直到今天,我姐姐还记得每一个字,“你好!”“你好吗?”“我很好!你呢?”“我也很好”。

关键词：老师天津外国语大学引人入胜课堂汉语有趣

Are extrafloral nectaries efficient against herbivores? Herbivory and plant defenses in contrasting tropical species

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Journal of Plant Ecology 2020年第4期13卷 423-430页

作者： Cássio Cardoso Pereira Maria gabriela Boaventura Gislene Carvalho de Castro Tatiana Cornelissen Departamento de Genética Ecologia e EvoluçãoUniversidade Federal de Minas Gerais31270-910 Belo HorizonteMGBrazil Departamento de Ciências Naturais Universidade Federal de São João del-Rei36301-160 São João del-ReiMGBrazil

Aims Plants have limited resources for defenses and species that invest in biotic defenses might exhibit leaves that invest less in other types of *** have investigated whether plants that have few mechanical defenses,but have extrafloral nectaries(EFNs)patrolled by ants,are less prone to herbivory,compared with plants without EFNs that have tougher *** Data from the literature were extracted to examine the reported levels of herbivory in plants with or without *** a savanna vegetation in southern Brazil,field data were collected in leaves from six tropical species and herbivory and specific leaf area(SLA)levels were *** further evaluated differences in herbivory and SLA among species and between plants with or without *** order to test the relationship between herbivory and leaf toughness we regressed average herbivory and average SLA per *** Findings Plants exhibited variable levels of leaf damage,but plants without ant defenses experienced the highest levels of leaf area loss to *** of mechanical defenses were also variable among the plant *** without EFNs were tougher,exhibiting lower values of *** plants without EFNs had more sclerophyllous leaves,this mechanical defense was not sufficient to impair and/or reduce herbivore feeding,suggesting that the biotic defenses performed by patrolling ants might be more effective than investment in mechanical defenses associated with leaf palatability.

关键词： ants biotic defenses herbivory leaf palatability specific leaf area

Non-alcoholic Fatty Liver Disease in South Asians:A Review of the Literature

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Journal of Clinical and Translational Hepatology 2017年第1期5卷 76-81页

作者： Sital Singh gabriela N.Kuftinec Souvik Sarkar Division of Gastroenterology and Hepatology and Department of Internal Medicine University of CaliforniaDavisUSA Department of Internal Medicine University of CaliforniaDavisUSA

Non-alcoholic fatty liver disease(NAFLD)and non-alcoholic steatohepatitis(NASH)are national and global *** disease is characterized by a spectrum of liver steatosis(fat deposition),inflammation(in NASH)and *** and specifically NASH can lead to cirrhosis,which carry risks of progression to portal hypertension and hepatocellular carcinoma(HCC).NASH is also associated with higher mortality from cardiovascular *** of the data for NAFLD has been obtained from the perspective of developed nations,although the disease is increasing and threatening to reach epidemic proportions across the *** data is notable for high prevalence of NAFLD in South Asian populations,presumably resulting from a combination of underlying genetic polymorphisms and changes in socio-economic *** is also notable that an‘Asian Paradox'has been defined for NAFLD based upon the observation of lower than predefined body mass index(BMI),otherwise termed as"lean NAFLD",among this ***,data remains limited in regards to the characteristics of NAFLD/NASH in this *** this article,we present a review of the literature and discuss the prevalence,associated risk factors and burden of HCC in South Asians with NAFLD.

关键词： Non-alcoholic fatty liver disease(NAFLD) Non-alcoholic steatohepatitis(NASH) South Asia