Search results for "Analytical"

showing 6 items of 9586 documents

Obesity and survival in operable breast cancer patients treated with adjuvant anthracyclines and taxanes according to pathological subtypes: a pooled…

2013

Obesity is an unfavorable prognostic factor in breast cancer (BC) patients regardless of menopausal status and treatment received. However, the association between obesity and survival outcome by pathological subtype requires further clarification. METHODS: We performed a retrospective analysis including 5,683 operable BC patients enrolled in four randomized clinical trials (GEICAM/9906, GEICAM/9805, GEICAM/2003-02, and BCIRG 001) evaluating anthracyclines and taxanes as adjuvant treatments. Our primary aim was to assess the prognostic effect of body mass index (BMI) on disease recurrence, breast cancer mortality (BCM), and overall mortality (OM). A secondary aim was to detect differences o…

Índice de Masa CorporalOncologyReceptor ErbB-2medicine.medical_treatmentObesidad:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Survival Analysis [Medical Subject Headings]Supervivencia sin EnfermedadBody Mass IndexAntineoplastic Combined Chemotherapy ProtocolsMedicineAnthracyclinesYoung adultMedicine(all)Hazard ratioNeoplasias de la MamaPronósticoFemeninoMiddle AgedPrognosisChemotherapy regimenTreatment OutcomeFemaleTaxoidsMastectomyResearch ArticleAdultmedicine.medical_specialtyAnálisis de Supervivencia:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Physical Examination::Body Constitution::Body Weights and Measures::Body Mass Index [Medical Subject Headings]Breast NeoplasmsDisease-Free SurvivalYoung AdultBreast cancerInternal medicineAdjuvant therapyHumansObesity:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Prognosis::Disease-Free Survival [Medical Subject Headings]:Diseases::Neoplasms::Neoplasms by Site::Breast Neoplasms [Medical Subject Headings]AgedGynecologyDose-Response Relationship Drugbusiness.industry:Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Therapeutic Uses::Antineoplastic Agents [Medical Subject Headings]Retrospective cohort studyAntineoplásicosmedicine.disease:Diseases::Nutritional and Metabolic Diseases::Nutrition Disorders::Overnutrition::Obesity [Medical Subject Headings]:Check Tags::Female [Medical Subject Headings]Multivariate Analysis:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Prognosis [Medical Subject Headings]Neoplasm Recurrence LocalbusinessBody mass index
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Recent Advances in Forward Brillouin Scattering: Sensor Applications

2022

In-fiber opto-mechanics based on forward Brillouin scattering has received increasing attention because it enables sensing the surrounding of the optical fiber. Optical fiber transverse acoustic resonances are sensitive to both the inner properties of the optical fiber and the external medium. A particularly efficient pump and probe technique—assisted by a fiber grating—can be exploited for the development of point sensors of only a few centimeters in length. When measuring the acoustic resonances, this technique provides the narrowest reported linewidths and a signal-to-noise ratio better than 40 dB. The longitudinal and transverse acoustic velocities—normalized with the fiber radius—can b…

ÒpticaElectrical and Electronic EngineeringMaterialsBiochemistryInstrumentationAtomic and Molecular Physics and OpticsAnalytical ChemistrySensors
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The chemical composition of the aerial parts essential oil of Achillea cretica L. (Asteraceae) growing wild in Crete (Greece)

2022

Achillea cretica (L.) (Asteraceae) is a suffruticosa camefite plant, mainly distributed in Crete, Aegean Islands, and eastern Mediterranean area. In the present study, the chemical composition of the essential oil from aerial parts of a not previously investigated accession of Achillea cretica, collected in Crete, was analysed by GC-MS. The results showed the presence of large quantity of α-bisabolol (53.88%) followed by the related compound α-bisabolol-oxide (2.76%), and spathulenol (5.94%). Based on the composition of the essential oils of all the other Achillea taxa, several consideration have been carried out.

α-bisabololAchillea creticasesquiterpenesOrganic ChemistryPlant ScienceAsteraceaeBiochemistryessential oilAnalytical ChemistryNatural Product Research
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The chemical composition of the aerial parts essential oil of Ferulago nodosa (L.) Boiss. (Apiaceae) growing wild in Crete (Greece)

2023

Ferulago nodosa (L.) Boiss. (Apiaceae) is a species occurring in the Balkan-Tyrrhenian area being present in Crete, Greece, Albania, and probably in Macedonia. Although the western disjointed population of Sicily has been classified as an endemic sub-species, F. nodosa subsp. geniculata (Guss.) Troia & Raimondo, its official acceptance is quite controversial. In order to verify the existence of two different sub-species, we investigated the chemical composition of the essential oil of F. nodosa, collected in Crete (Greece), not previously reported, and we compared it with the previously oil compositions reported in literature. Main constituents of the Cretan accessions of F. nodosa were…

β-pinene245-trimethylbenzaldehydeβ-phellandreneα-pineneOrganic ChemistryPlant ScienceBiochemistryessential oilApiaceaeAnalytical Chemistry
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Characterization and antimicrobial activity of the volatile components of the flowers of Magydaris tomentosa (Desf.) DC. collected in Sicily and Alge…

2014

The essential oils of the flowers of Magydaris tomentosa (Desf.) DC. (Apiaceae) collected in Sicily (MSi) and Algeria (MAl), respectively, were obtained by hydrodistillation, and their compositions were analysed. The analyses allowed the identification and quantification of 23 components in MSi and 60 compounds in MAl, respectively, showing a very different profile in the composition of the two populations. The main components of MSi were cembrene (28.2%), α-springene (17.5%) and β-springene (14.8%), also present in MAl but in lesser amount (0.4%, 1.8% and 0.9%, respectively), whereas the principal constituents of MAl were (E)-nerolidol (35.4%), α-costol (13.3%) and β-costol (6.8%). Both MS…

β-springeneFlowersMicrobial Sensitivity TestsPlant ScienceBiochemistryMagydaris tomentosaGas Chromatography-Mass Spectrometryessential oilAnalytical ChemistryAnti-Infective Agentsα\-springeneStaphylococcus epidermidisparasitic diseasesOils VolatileMagydarisSicilyApiaceaeantimicrobial activitybiologyTraditional medicineOrganic ChemistrySettore CHIM/06 - Chimica Organicabiology.organism_classificationAntimicrobialαspringeneAnti-Bacterial AgentsPlant LeavesChemotaxonomyAlgerialipids (amino acids peptides and proteins)Composition (visual arts)DiterpenesAntibacterial activitySesquiterpenesApiaceae
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The Use of Stable Isotope Ratio Analysis to Trace European Sea Bass (D. labrax) Originating from Different Farming Systems

2020

This study aimed to determine whether isotopic ratio mass spectrometry (IRMS) can discriminate farmed European sea bass according to different farming systems and geographic origins. Dicentrarchus labrax of commercial size from three different rearing systems (concrete tank inland, sea cages, and extensive methods in valleys or salt works) were collected at the trading period (autumn&ndash

δ18Ostable isotopesgeographic origin01 natural sciencesArticle0404 agricultural biotechnologyAquacultureSettore AGR/20 - Zoocolturelcsh:ZoologyDicentrarchus labrax<i>Dicentrarchus labrax</i>lcsh:QL1-991Settore BIO/06 - Anatomia Comparata E CitologiaSea bassIsotope-ratio mass spectrometryaquaculture; Dicentrarchus labrax; stable isotopes; traceability; farming system; geographic origin; IRMS; sea bass; fish; authenticationfishaquaculture Dicentrarchus labrax stable isotopes traceability farming system geographic origin IRMS sea bass fish authenticationlcsh:Veterinary medicineGeneral Veterinaryδ13CbiologyStable isotope ratiobusiness.industry010401 analytical chemistry04 agricultural and veterinary sciencesδ15NIRMSbiology.organism_classification040401 food science0104 chemical sciencesFisherytraceabilityaquaculturelcsh:SF600-1100authenticationEnvironmental sciencefarming systemAnimal Science and ZoologyDicentrarchusbusinesssea bassAnimals
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