Relevant bibliographies by topics / Chimie du sang

Academic literature on the topic 'Chimie du sang'

Author: Grafiati
Published: 8 July 2022

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Journal articles on the topic "Chimie du sang"

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Nahoum-Grappe, Véronique. "Algérie : sang et brouillard." Chimères 33, no. 1 (1998): 171–79. http://dx.doi.org/10.3406/chime.1998.2222.

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Pardo, E. V., and A. C. Z. Amaral. "Feeding behavior of the cirratulid Cirriformia filigera (Delle Chiaje, 1825) (Annelida: Polychaeta)." Brazilian Journal of Biology 64, no. 2 (May 2004): 283–88. http://dx.doi.org/10.1590/s1519-69842004000200014.

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Observations of the feeding behavior of Cirriformia filigera (Delle Chiaje, 1825) (Annelida: Polychaeta) from the intertidal zone of São Francisco and Engenho D'água beaches (São Sebastião, State of São Paulo) were made in the laboratory. This species, like other cirratulids, is a deposit feeder, feeding mainly on sediment surface with the aid of its grooved and ciliated palps, which are used to capture food particles. The worm lies just beneath the substrate surface in a J-shaped tube. When feeding, it extends up to 4 palps over the sediment surface, capturing food particles which pass down the groove of each palp directly to the mouth. Only fine sand grains are ingested. The worm frequently extends 4 branchial filaments into the overlying water for aeration. When it moves with the prostomium sideways, it collects and transports sand grains that pass backwards along its ventral region until reaching the middle part of its body. Next, the parapodia and palps move the sand grains to the dorsal posterior end of the animal, covering this area with sand. Some sand grains are also ingested as the worm moves.
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Izougarhane, Mohammed, Dalale Mansouri, Hamid El Ibaoui1, Said Chakiri, and Mohamed Fadli. "Physico-Chimie Et Teneurs Metalliques Des Eaux De L’estuaire De L’oued Sebou Durant Des Annees De Dragage Du Sable/ 2007, 2014, 2015, 2016." European Scientific Journal, ESJ 12, no. 30 (October 31, 2016): 127. http://dx.doi.org/10.19044/esj.2016.v12n30p127.

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This work focuses on the physical, chemical and metal characterization of the estuary waters of Oued Sebou during a long period of sand dredging. To do this, several physicochemical parameters were evaluated during periods 2007 and 2014-2016. The results showed that this estuary has a significant degree of pollution. The source of this pollution is diverse: urban waste, industrial waste, agricultural activities. This pollution is accentuated by the action of repeated dredging that increases the turbidity and the suspended solids content which covers the seabed during immersions that are covering the sediment and disturbs the physicochemical equilibrium of the estuary. So, indirectly this operation of dredging influences the parameters that are related to the amount and quality of materials suspended such as the dissolved oxygen content and orthophosphates and the brightness level in the water and over up the sediment.Indeed, for the majority of the physicochemical parameters assessed, the water of the estuary was belonging to a middle class, poor class or very poor class. Thus, the operation of dredging should consider the ecological balance of the coastal zone. Note also that the contents of assessed heavy metals are not worrisome. However, their risks might be amplified by the dredging operations.
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Gayoso, Jorge, Mauricio Acuña, and Roberto Muñoz. "Gestión sustentable de ecosistemas forestales: Caso predio San Pablo de Tregua, Chile." Bosque 22, no. 1 (2001): 75–84. http://dx.doi.org/10.4206/bosque.2001.v22n1-08.

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Palacios-Bayas, Angel Ramiro, Victor Alejandro Bosquez-Barcenes, José Miguel Palacios-Bayas, and Luis Alfredo Camacho-Castillo. "AUDITORÍA DE SEGURIDAD INFORMÁTICA A LA DIRECCION DISTRITAL 02D03 CHIMBO-SAN MIGUEL-EDUCACIÓN, APLICANDO COBIT 5." Revista de Investigación Talentos 6, no. 2 (December 24, 2019): 1–11. http://dx.doi.org/10.33789/talentos.6.2.103.

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Huaiquian-Silva, Julia Cristobalina, Jose Siles-González, and Ana Luisa Velandia-Mora. "The Hospitaller Order of Saint John of God in Colonial Chile." Aquichan 13, no. 2 (August 1, 2013): 290–300. http://dx.doi.org/10.5294/aqui.2013.13.2.14.

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Objetivo: describir las prácticas de enfermería en Chile durante la época colonial, prestando especial atención a la influencia de Españaen dicho proceso. Método: investigación cualitativa de abordaje socio-histórico; las fuentes primarias corresponden a textos históricosde Chile recuperados en la Biblioteca Virtual Memoria Chilena, y a 34 documentos recopilados en el Archivo Museo San Juan de Dios, Casa de los Pisa, en Granada, España, titulados “Listado de los hermanos de San Juan de Dios que vivían en Chile (207 años) y un índice de documentos inéditos copiados de los archivos histórico nacional y del antiguo hospital, por Faustino Calvo”. La recolección de la información se efectuó con ficha documental confeccionada por la investigadora, complementada con fotografías. El análisis de los datos se realizó a través de análisis de contenido. Resultados: la Orden de San Juan de Dios llegó a Chile en el año 1617 a los hospitales de Santiago y Concepción y se expandió a las ciudades de La Serena, Valparaíso, San Juan de la Frontera, Talca, Chillan, Concepción y Valdivia. Por más de doscientos años la Orden permaneció en Chile brindando asistencia hospitalaria y de enfermería a través de los cuidados religiosos.Conclusión: con la llegada de la Orden al país mejoró indiscutiblemente la organización de los cuidados de salud al interior de los hospitales,que a partir de esa fecha se administraron de forma organizada, con altos estándares de higiene y limpieza, vigilando sigilosamentela alimentación de sus pacientes y con una gran preocupación por brindar asistencia espiritual a quienes necesitasen de sus servicios
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Syafiya, Auladina, and Suwarno Hadisusanto. "KOMUNITAS MAKROZOOBENTOS DI KAWASAN PENAMBANGAN PASIR DI SUNGAI PROGO (Macrozoobenthos Community in Sand Mining Area of Progo River)." Jurnal Manusia dan Lingkungan 26, no. 2 (October 8, 2020): 52. http://dx.doi.org/10.22146/jml.40255.

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AbstrakSungai memiliki peranan penting bagi manusia dan makhluk hidup lainnya, di antaranya adalah sebagai habitat bagi komunitas makrozoobentos dan pemanfaatan material berupa pasir dan batu sebagai bahan bangunan. Sungai Progo merupakan salah satu sungai yang hampir di sepanjang sungainya terdapat aktivitas penambangan pasir. Jika aktivitas ini dilakukan terus menerus dalam jumlah banyak dan tanpa pengawasan yang baik dapat menyebabkan terjadinya erosi dan degradasi serta sedimentasi pada bagian-bagian tertentu sungai. Maka dari itu dilakukan penelitian ini untuk mempelajari pengaruh aktivitas penambangan pasir terhadap distribusi dan kemelimpahan komunitas makrozoobentos di Sungai Progo, serta Functional Feeding Group (FFG) yang paling melimpah dan parameter fisiko-kimia yang memengaruhinya. Penelitian ini dilakukan dalam tiga tahap, yaitu mencuplik dan preparasi sampel makrozoobentos, identifikasi sampel, dan pengukuran parameter fisiko-kimia. Aktivitas penambangan pasir di Sungai Progo berpengaruh secara tidak langsung terhadap makrozoobentos, yaitu dengan menyebabkan adanya erosi dan degradasi di kawasan penambangan pasir serta sedimentasi di bagian hilir. FFG makrozoobentos di Sungai Progo yang paling melimpah adalah tipe scraper dan collector. Berdasarkan analisis regresi dan korelasi Pearson didapatkan hasil bahwa fosfat berkorelasi positif terhadap densitas makrozoobentos di bagian hulu Sungai Progo, intensitas cahaya berkorelasi positif terhadap densitas makrozoobentos di bagian tengah Sungai Progo, dan kecepatan arus berkorelasi positif terhadap densitas makrozoobentos di bagian hilir Sungai Progo. AbstractRiver has an important role for human and other organisms, among them are as habitat of macrozoobenthos community and the utilization of the material, such as river sand and gravel for building material. Progo River is one of rivers which have sand mining activities almost all along the river. If this activity being done continuously, in a big amount and without a good supervision, it could lead to erosion, degradation and sedimentation in some specific parts. Therefore, this research has an aim to study the effects of sand mining activity towards the distribution and the abundance of macrozoobenthos community in Progo River, and also to study which Functional Feeding Group (FFG) is the most abundant and the physic-chimic parameter that affecting them. This research was conducted in three steps, sampling and preparation of macrozoobenthos’s sample, sample’s identification, and the measurement physicochemical parameter. Sand mining activity in Progo River effect indirectly towards macrozoobenthos by causing erosion and degradation in sand mining area as well as sedimentation in downstream. The most abundant FFG of macrozobenthos in sand mining area of Progo River are scraper and collector. Based on regression and Pearson correlation analysis the results show that phosphate correlated positively against the density of macrozoobenthos in the headwaters of Progo River, light intensity correlated positively against the density of macrozoobenthos in the midstream of the Progo River, and current velocity correlated positively against the density of macrozoobenthos in the downstream of the Progo River.
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Timio, Mario. "Nefrologia clinica: dalla stretta di mano all'EBM attraverso la bioetica." Giornale di Clinica Nefrologica e Dialisi 26, no. 3 (September 30, 2014): 278–80. http://dx.doi.org/10.33393/gcnd.2014.920.

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La stretta di mano è un gesto essenziale nell'approccio al binomio medico-malato. Sociologi, psicologi medici e bioeticisti ne sottolineano l'importanza nella gestione iniziale della malattia: piccolo gesto per il medico, grande per il malato. Apparentemente controcorrente in un mondo in cui tutto è fast, la stretta di mano viene considerata la chiave giusta per aprire la porta della bioetica in medicina coniugata alla comunicazione medico-malato. Come testimonianza viene riportata la storia clinica di tre pazienti con problemi nefrologici, che fanno emergere la valenza della bioetica nella loro risoluzione ed il significato umano della sua assenza. Viene sottolineato il valore della comunicazione, come il disvalore del silenzio e del non-ascolto nel rapporto medico-paziente. Il non-ascolto mina dalle fondamenta la comunicazione tra uomini sani e malati. Al contrario l'ascolto del dializzato è il presupposto di un vero dialogo, di ogni piena comunicazione. Sono presentate le categorie della medicina narrativa ed il loro utilizzo nella bioetica nefrologica. (Bioethics)
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Poli, Daniela, and Elisa Butelli. "Una nuova ruralità periurbana nel cuore della città metropolitana: un parco agricolo multifunzionale in Riva sinistra d'Arno." CRIOS, no. 22 (March 2022): 30–43. http://dx.doi.org/10.3280/crios2021-022004.

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La globalizzazione e l'industrializzazione dell'agricoltura, accompagnate dall'urbanizzazione imponente delle aree metropolitane, hanno reso i contesti di vita sempre più fragili. La pandemia attuale non è che l'esito potente di un modello urbano insostenibile. Uno dei nessi più critici è quello del metabolismo del cibo, retto da reti lunghe legate alla grande distribuzione. Le forme di pianificazione resiliente del XXI secolo dovranno prevedere modalità capaci di reintrodurre il tema della produzione alimentare sana e di prossimità nelle proprie strategie e azioni. L'articolo illustra il progetto "Coltivare con l'Arno. Parco agricolo perifluviale" nei Comuni di Firenze, Scandicci e Lastra a Signa. Tramite un intenso processo partecipativo il progetto ha delineato i contorni di un parco agricolo multifunzionale, per dare risposta al bisogno di prossimità di una nuova ruralità periurbana, contribuendo a tempo stesso a individuare modalità di risoluzione delle criticità di un contesto fortemente urbanizzato. Parole chiave: bioregione urbana, ruralizzazione, parco agricolo, periurbano, prossimità, partecipazione.
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Schlüter, Jochen, Karl-Heinz Klaska, Karen Friese, Gunadi Adiwidjaja, and Georg Gebhard. "Gordaite, NaZn4 (SO4) (OH)6Cl · 6H2O, a new mineral from the San Francisco Mine, Antofagasta, Chile." Neues Jahrbuch für Mineralogie - Monatshefte 1997, no. 4 (June 6, 1997): 155–62. http://dx.doi.org/10.1127/njmm/1997/1997/155.

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Dissertations / Theses on the topic "Chimie du sang"

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Cohen, Virna. "Projet de manuel qualité de l'unité physico-chimie de la direction des laboratoires et des contrôles." Paris 5, 1997. http://www.theses.fr/1997PA05P044.

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Cedrati, Naïma. "Microparticules d'hémoglobine : préparation et étude physico-chimique." Nancy 1, 1995. http://www.theses.fr/1995NAN10441.

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Ech-Cherif, El-Kettani Samya Moussamih. "Cyclosporine A et régulation de la glycémie : approche chronopharmacologique." Toulouse 3, 1993. http://www.theses.fr/1993TOU30214.

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La cyclosporine a est un immunodepresseur susceptible d'induire de nombreux effets indesirables. La toxicite pancreatique, effet de type diabetogene dont les mecanismes ne sont pas encore totalement elucides, est generalement reversible apres interruption du traitement. Une etude de chronotoxicite a ete realisee chez le rat male wistar synchronise a un cycle 12:12 h lumiere/obscurite. L'analyse des donnees fait appel a des analyses de variance, des correlations et des regressions non lineaires. Le premier volet de l'etude a eu pour objet de rechercher l'influence de l'horaire de traitement (voie orale) sur le devenir des rythmes biologiques de la glycemie et de l'insulinemie au cours d'une periode de 21 jours (20 mg/kg/jour). On observe une augmentation du niveau moyen et de l'amplitude de variation du glucose plasmatique accompagnee essentiellement d'une diminution de l'amplitude de l'insuline, le niveau moyen circulant de l'hormone etant peu affecte. Les effets sont moins graves chez les rats traites en debut de periode d'activite nocturne. Deux semaines apres interruption du traitement, on assiste a une tendance a la normalisation mais la reversibilite n'est pas complete. Le deuxieme volet de l'etude a consiste a suivre la tolerance au glucose apres une administration orale unique de csa (20 mg/kg). On note une elevation precoce du niveau de base de la glycemie et une diminution de la tolerance a une charge orale de glucose (250 mg/kg) quantifiee par les aires sous les courbes de cinetique du glucose et les correlations glucose-insuline. Les effets sont plus prononces lorsque le produit est administre en milieu de periode de repos diurne. Si elles se trouvent confirmees en clinique humaine, ces perturbations des rythmes biologiques lies a la regulation de la glycemie devraient etre prises en consideration lors des traitements a long terme
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Ruch, Claude. "Analyse d'elements traces par fluorescence x : nouveaux developpements." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR13107.

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L'analyse d'elements presents a l'etat de trace (concentration inferieures au mu nongg) connait un developpement important dans l'etude de l'environnement, en medecine et en biologie. Tous ces domaines requierent un nombre d'analyses eleve d'echantillons pour conduire a des resultats significatifs. Le nombre d'elements qui gagnent en importance ne cesse de croitre. La spectrometrie a dispersion d'energie repond parfaitement a ces besoins par une analyse multielementaire rapide, sans preparation chimique et d'une tres grande fiabilite. Une automatisation aisee permet des mesures de routine vingt quatre heures sur vingt quatre de quelques dizaines d'elements dans le domaine du n nongg
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Lemaire, Jérémy. "Mercury contamination in caimans from French Guiana, bioaccumulation and physiological effects." Thesis, La Rochelle, 2021. https://tel.archives-ouvertes.fr/tel-03716076.

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Le mercure (Hg) est un contaminant environnemental qui affecte tous les écosystèmes. Il a la particularité de se biomagnifier le long de la chaîne trophique et de se bioaccumuler dans les tissus des prédateurs. Le Hg est connu pour avoir des effets néfastes chez les humains et la faune sauvage. Les prédateurs des écosystèmes tropicaux sont particulièrement affectés par la contamination en Hg du fait de l’exploitation aurifère artisanale qui utilise d’importantes quantités de Hg pour extraire l’or. Les crocodiliens sont des super-prédateurs des écosystèmes tropicaux et ils accumulent de fortes concentrations de Hg dans leurs tissus. Ils sont potentiellement de bons candidats pour suivre la contamination en Hg, ce sont des animaux vivant plusieurs décennies, ils ont un métabolisme lent et un taux de conversion de l’énergie important, ce qui favorise la bioaccumulation. De plus, ils ont une répartition importante dans les écosystèmes tropicaux et subtropicaux, ce qui rend la surveillance du Hg possible à large échelle. Mes travaux de doctorat s’intéressent aux quatre espèces de caïmans présents en Guyane (le caïman noir Melanosuchus niger, le caïman nain de Cuvier Paleosuchus palpebrosus, le caïman de Schneider Paleosuchus trigonatus et le caïman à lunettes Caiman crocodilus). J’ai travaillé sur les variations de Hg entre différents tissus obtenus par méthode de prélèvement peu invasif et, j’ai étudié l’influence de la morphologie et de l’écologie trophique (via les isotopes stables) des individus sur les concentrations en Hg. Ensuite, j’ai étudié l’impact d’une contamination en Hg sur les mécanismes physiologiques, le transfert maternel et ses effets sur les nouveau-nés
Mercury (Hg) is a global environmental contaminant that affects ecosystems. It has the particularity to biomagnify through the food web, and to bioaccumulate especially in tissues of top predators. Mercury has been identified to have detrimental effects on human and wildlife. Top predators from tropical ecosystems are particularly affected by Hg contamination due to artisanal small scale gold mining, which uses massive amounts of Hg in the gold extraction process. Crocodilians are top predators of tropical ecosystems and have been identified to accumulate high concentrations of Hg in their tissues. They are potentially good candidates to monitor Hg contamination, as they are long-living animals with low metabolic, and high tissue conversion rates, which favours the bioaccumulation of Hg. Additionally, they have a large repartition over tropical and sub-tropical ecosystems, which make large-scale Hg evaluation possible. My doctoral work focuses on the four caiman species that are present in French Guiana (the Black caiman Melanosuchus niger, the Dwarf caiman Paleosuchus palpebrosus, the Smooth-fronted caiman Paleosuchus trigonatus and the Spectacled caiman Caiman crocodilus). First, I have worked on Hg variation across different tissues obtained by minimally invasive methods, and investigated the influence of morphology and feeding ecology (by using stable isotope method) on Hg contamination in caimans. Second, I have investigated the impact of Hg contamination on physiological mechanisms, and the maternal transfer and its effects on neonates
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Neu, Christophe. "Préparations cosmétiques et mise au point d'une coloration semi-permanente, sans oxydation, sans ammoniaque, destinée à la population masculine." Aix-Marseille 3, 2000. http://www.theses.fr/2000AIX30075.

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La coloration capillaire est un domaine de la cosmétique en pleine expansion. Posséder la connaissance en formulation est d'importance capitale pour toute société désireuse d'investir ce marché. L'étude présentée se découpe en deux parties. La première partie traite de la formulation de préparations cosmétiques destinées au traitement et au soin du cheveu et de la peau. Elle présente les principaux types de formulations rencontrés en cosmétique capillaire. Une deuxième partie s'intéresse plus particulièrement à la formulation de colorations capillaires semi-permanentes, sans oxydants, sans ammoniaque, sur support gel. L'auteur y étudie les différents types de support déjà existants sur le marché puis expose les travaux mis en cours pour la mise au point du support de coloration. L'étude comporte l'analyse des principaux paramètres influençant la prise des colorants sur la fibre capillaire ainsi que les moyens mis en œuvre pour améliorer celle-ci. Les formules tinctoriales de quinze teintes y sont décrites, elles utilisent des mélanges de colorants nitrés et de nature cationique. L'originalité du support présenté dans cette étude, est de permettre la dissolution et l'accroche des colorants sans avoir recours à un solvant
In the domain of cosmetics, hair dyeing is one of the booming sectors. Formulation control is essential to companies for entering successfully on this market. The study is organised in two parts: Formulation and preparation of cosmetics for treatment and care of hair and skin. Formulation of semi permanent gel based hair dyeing, without using any oxidising agent or ammonia. The author studies different types of supports existing on the market, and sketch out the way to obtain his hair dye support. The study analyses the most concerned parameters witch influence the dye uptake on the hair shaft, and suggests ways to improve it. Fifteen different shades formulas are described, using mixtures of diverse nitrated and cationic hair dyes. The originality of this support is to allow dissolving and uptake of the dyes, without using a solvent
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Halvorsen, Karin. "Chimie macrocyclique. Nouvelle stratégie sans haute dilution : macrolactonisation et macrolactamisation en milieu organisé." Toulouse 3, 1992. http://www.theses.fr/1992TOU30024.

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L'objectif de ce travail etait la mise au point de methodes generales permettant facilement l'obtention de cycles de grande taille dans des conditions preparatives simples sans haute dilution. Nous pensions utiliser les systemes organises (solutions micellaires et microemulsions) comme milieux reactionnels sachant que leur structures particulieres peuvent localiser et orienter les reactifs aux interfaces. Nous avons applique cette technique de cyclisation par effet de milieu a la synthese de macrocycles de type macrolides (macrolactones et macrolactames) qui comptent parmi les macrocycles les plus importants au plan pharmaceutique. Nous avons profite des avantages combines de l'activation chimique et des milieux structures. L'excellent comportement du reactif de mukaiyama nous a incite a preparer un nouveau reactif du meme type mais rendu hydrophobe par la fixation d'une longue chaine hydrocarbonee. Ceci permet de reunir a la fois les proprietes d'activation et la realisation d'un milieu structure. Avec ce compose, en maitrisant les reactions d'hydrolyse, il nous est maintenant possible de doubler les rendements en macrolactames obtenus avec le reactif de mukaiyama (70% a partir de l'acide 12-aminododecanoique) tout en travaillant a des concentrations elevees (0,028m) et sans addition lente et progressive des reactifs. Ainsi, nous avons pu faire la preuve de l'interet des milieux microstructures (dont l'organisation est due a la nature meme du reactif d'activation) pour la preparation de macrocycles. Cette nouvelle methode, qu'il reste a optimiser, pourrait etre appliquee a de nombreux exemples. A cet egard, le role de la solubilite du substrat, qui pour etre cyclise sans polymerisation doit se localiser a l'interface et donc etre peu soluble dans le milieu continu, est particulierement important. Cette observation, que nous devons rationaliser, nous incite a orienter l'application de notre methode a la synthese de cyclopeptides dont elle pourrait constituer, en raison de la faible solubilite des precurseurs, une voie d'acces des plus performantes
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Leysi-Derilou, Younes. "Monitoring and mathematical modeling of in vitro human megakaryocyte expansion and maturation dynamics." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/27968/27968.pdf.

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La mégakaryopoïèse est un processus complexe, qui prend naissance à partir des cellules souches hématopoïétiques (HSC). Ces dernières se différencient par étapes successives en mégakaryocytes (MKs) qui, suite à leur maturation, libèrent les plaquettes. Afin de modéliser le sort des HSCs lors de la mégakaryopoïèse en culture, un nouveau modèle mathématique a été développé, basé sur un programme de différenciation tridimensionnelle (3-D) où chaque sous-population est représentée par un compartiment. Dans le but d’évaluer la prolifération, la différenciation des MKs immatures puis matures, la cinétique de mort cellulaire ainsi que le nombre de plaquettes produites, à partir des cellules de sang de cordon (CB) ombilical enrichies en CD34+, un ensemble d'équations différentielles a été déployé. Les cellules CD34+ ont été placées en culture dans un milieu optimisé pour la différenciation mégakaryocytaire. Les paramètres cinétiques ont été estimés pour deux températures d'incubation (37°C versus 39°C). Les résultats des régressions ont été validés par l'évaluation de l'estimabilité des paramètres, en utilisant des analyses de sensibilité locale et globale, puis la détermination d'un intervalle de confiance. Ceux-ci ont été comparés par le biais de tests statistiques et d’analyses en composante principale (ACP). Le modèle proposé pourrait permettre de mieux comprendre les phénomènes complexes observés. Les MKs sont uniques parmi les cellules hématopoïétiques, étant les seules à devenir polyploïdes au cours de leur développement par l’entremise de l’endomitose, un processus mitotique qui se termine prématurément durant la cytocinèse. Pour obtenir une image plus complète et exhaustive de la mégacaryopoïèse, une approche d’imagerie cellulaire à grand champ et à long terme a été développée permettant de suivre individuellement l'évolution des HSCs lors de leur différenciation ex vivo. Cela a permis de démontrer que les MKs polyploïdes sont encore capables de se diviser et de produire des cellules filles polyploïdes, et que ce processus est plus fréquent chez les MKs issues de CB que de moelle osseuse d'adulte. De plus, le processus de formation des proplaquettes semble également réversible. Les phénomènes énoncés plus haut étaient inversement proportionnels au niveau de ploïdie des MKs. En conclusion, cette étude a dévoilé de nouvelles propriétés jusqu’ici inconnues des MKs.
Megakaryopoiesis is a complex process, which is initiated with the proliferation and the differentiation of hematopoietic stem cells (HSC) into megakaryocytes (MK), followed by the maturation of MK and ended by platelet release. To describe the fates of HSC during ex vivo megakaryopoiesis, a new mathematical model was developed based on a 3-dimensional kinetic developmental program. To address this, a set of differential equations was applied to analyze the proliferation, differentiation and death kinetic rates of purified cord blood (CB)-CD34+ cells, immature and mature MKs, as well as platelet number and productivity. CB-CD34+ cells were placed in culture optimized for MK differentiation. The kinetic parameters were estimated for two incubation temperatures (37°C vs. 39°C). The regression results have been validated by assessing the parameter identifiability using local and global sensitivity analyses and confidence intervals, and compared using statistical tests and principal component analysis (PCA). Furthermore, PCA was applied on the solution matrix to construct a simplified MK differentiation pathway model, and to reveal dependencies among the model parameters. The proposed model provides insight into phenomena that would be otherwise difficult to interpret. MKs are unique among mammalian marrow cells as they polyploidize during their natural development. It is universally accepted that MK becomes polyploid by repeatedly deviating from normal cell cycling, where it ceases to complete cytokinesis and divide. To challenge this long-standing hypothesis and to obtain a more comprehensive picture of megakaryopoiesis, a long-term and large-field live cell imaging approach of in vitro MK culture was developed. Using CB- and bone marrow (BM)-CD34+ as starting cells, the direct observation of cells undergoing differentiation and maturation over a 5-day culture period is reported for the first time. Herein, direct visual proof that polyploid MKs can complete cytokinesis during its normal development is presented. This phenomenon was found not restricted to CB- as the BM-derived polyploid MK also underwent division. However the latter showed significantly lower proliferation rate. This new finding explains in part the unresolved issue of low ploidy levels observed in CB-MK and contests the notion that polyploid MKs do not divide.
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BACZKO, BOROWA KRYSTYNA, and René Dabard. "Chimie des sucres sans groupements protecteurs : acylations regioselectives, par voie chimique de mono- et disaccharides." Rennes 1, 1990. http://www.theses.fr/1990REN10013.

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La modification selective des glucides permet de s'affranchir de la methodologie classique de protection et de deprotection alternees des hydroxyles et constitue, de ce fait, un theme majeur de la chimie organique naturelle. Dans ce memoire, nous decrivons de nouvelles acylations partielles, par voie chimique, de mono- et disaccharides par des n-acylthiazolidine-2-thiones ainsi que des n-acyl-5-methyl-(3h)-1,3,4-thiadiazole-2-thiones. Ces reactions aboutissent soit a de nouveaux intermediaires de synthese en serie glucidique, soit a des sucres modifies qui possedent un interet propre. Dans le cas des hexopyranoses libres de configuration alpha ou de leur methylglycosides, nous obtenons de maniere tres selective et avec des rendements eleves, les monoesters de l'hydroxyle primaire correspondants. Nous avons egalement reussi a realiser une monoesterification de l'un des hydroxyles primaires d'une molecule symetrique telle que le trehalose. Nous avons mis au point une acylation de l'un des hydroxyles secondaires du saccharose sans proteger prealablement les hydroxyles primaires. L'isomerisation intramoleculaire des 2-o-acylsucroses ainsi obtenus, constitue une methode efficace de synthese de 6-o-acylsucroses qui sont d'autre part tres recherches comme intermediaires dans la fabrication d'un nouvel edulcorant de synthese, le sucralose
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Froideval, Annick. "Chimie de l'uranium (VI) à l'interface solution/minéraux (quartz et hydroxyde d'aluminium) : expériences et caractérisations spectroscopiques." Phd thesis, Université Louis Pasteur - Strasbourg I, 2004. http://tel.archives-ouvertes.fr/tel-00390927.

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Books on the topic "Chimie du sang"

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Muller, Claude. Mémento: Les examens de laboratoire : liste des analyses biologiques, prélèvements, résultats normaux et pathologiques, épreuves fonctionnelles, systèmes d'unités internationales. 9th ed. Paris: Maloine, 1992.

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Wood, Casey A. Color measurement, and its application in medicine and the arts. Ditroit, Mich: G.S. Davis, 1985.

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Chile) Museo de Arte Contemporáneo (Santiago. Taller San Ignacio. Santiago]: Museo de Arte Contemporáneo, Universidad de Chile, 1998.

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Lillo, Manuel Ahumada. Cerro Chena testimonio. Santiago de Chile: Ediciones Tierra Mia, 2003.

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Alvarez, Sergio Peña. La Parroquia de San Antonio del Mar, Barraza, 1680-1824: Historia religiosa, social y económica de una jurisdicción eclesiástica del valle del Limarí, Norte Chico, Chile. [Santiago: s.n.], 1994.

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R, Isaías Nardocci. El Convento de El Almendral de San Felipe. Santiago de Chile: Archivo Franciscano, 2002.

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R, Isaías Nardocci. El Convento de El Almendral de San Felipe. Santiago de Chile: Archivo Franciscano, 2002.

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Arriagada, Eliana Rubio. El Templo de San Francisco. Santiago de Chile: Archivo Franciscano, 2000.

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Arriagada, Eliana Rubio. El Templo de San Francisco. Santiago de Chile: Archivo Franciscano, 2000.

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Miracle in the mine: One man's story of strength and survival in the Chilean mines. Grand Rapids, Mich: Zondervan, 2011.

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Book chapters on the topic "Chimie du sang"

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Loos, François. "Chapitre 15 : 2050 : une chimie verte dans une France sans fossiles… ou presque." In Chimie et enjeux énergétiques, 265–74. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1087-1-017.

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Loos, François. "Chapitre 15 : 2050 : une chimie verte dans une France sans fossiles… ou presque." In Chimie et enjeux énergétiques, 265–74. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1087-1.c017.

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Taber, Douglass F. "Carbon-Carbon Bond Formation." In Organic Synthesis. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199965724.003.0025.

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Akiya Ogawa of Osaka Prefecture University found (Tetrahedron Lett. 2010, 51, 6580) that the Sm-mediated reductive coupling of a halide 1 with CO2 to give the carboxylic acid 2 was strongly promoted by visible light. Gregory C. Fu of MIT designed (Angew. Chem. Int. Ed. 2010, 49, 6676) a Ni catalyst for the coupling of a primary borane 4 with a secondary alkyl halide 3. James P. Morken of Boston College devised (Org. Lett. 2010, 12, 3760) conditions for the carbonylative conjugate addition of a dialkyl zinc to an enone 6 to give the 1,4-dicarbonyl product 7. Louis Fensterbank of the Institut Parisien de Chimie Moléculaire developed (Angew. Chem. Int. Ed. 2010, 49, 8721; not illustrated) a protocol for the conjugate addition of alkyl boranes to enones. Hyunik Shin of LG Life Science, Daejeon, and Sang-gi Lee of Ewha Womans University showed (Tetrahedron Lett. 2010, 51, 6893) that the intermediate from Blaise homologation of a nitrile 8 was a powerful nucleophile, smoothly opening an epoxide 10 to deliver 11. Sébastien Reymond and Janine Cossy of ESPCI ParisTech found (J. Org. Chem. 2010, 75, 5151) that FeCl3 smoothly catalyzed the coupling of an alkenyl Grignard 13 with the primary iodide 12. The Ti-mediated coupling of an alkyne 16 with an allylic alkoxide 15 (J. Am. Chem. Soc. 2010, 132, 9576) developed by Glenn C. Micalizio of Scripps/Florida was the key step in the total synthesis (J. Am. Chem. Soc. 2010, 132, 11422) of lehualide B. Huanfeng Jiang of the South China University of Technology observed (Chem. Commun. 2010, 46, 8049) that KI added to a bromoalkyne 18 to give the dihalide 19 with high geometric control. Haruhiko Fuwa of Tohoku University improved (Org. Lett. 2010, 12, 5354) the selective hydroiodination of a methyl alkyne 20 to 21. Takuya Kurahashi and Seijiro Matsubara of Kyoto University devised (Chem. Commun. 2010, 46, 8055) the Ni-catalyzed three-component coupling of an alkyne 22, methyl acrylate 23, and phenyl isocyanate to give the doubly homologated lactam 24. Patrick H. Toy of the University of Hong Kong showed (Synlett 2010, 1997; Org. Lett. 2010, 12, 4996 for a polymer with covalently attached base) that resin-bound triphenylphosphine participated efficiently in the Wittig coupling of 26 with an aldehyde 25.
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Gaudichaud, Franck. "Chapitre I. Des mobilisations collectives radicales sans alternative politique ?" In Chili 1970-1973, 209–28. Presses universitaires de Rennes, 2013. http://dx.doi.org/10.4000/books.pur.42701.

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Tontiplaphol, Betsy Winakur. "Classic Pas—Sans Flaw." In The Pointe of the Pen, 97–138. Liverpool University Press, 2021. http://dx.doi.org/10.3828/liverpool/9781800859487.003.0003.

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Chapter 3 considers the degree to which virtuosic display had, despite Noverre’s revolutionary emphasis on expressivity, endured as a feature of balletic performance; indeed, the value of technical flair increased when Napoleon sought to establish meritocracy at the Paris Opera. Ballet’s newly virtuosic bodies exerted a profound influence on Byron and Shelley, whose exposure to ballet was extensive in the 1810s, when Byron managed the Drury Lane Theater and Shelley, a close affiliate of prolific dance critic Leigh Hunt, frequented the ballet both in England and, later, Italy. Chapter 3 argues that Byron and Shelley were inspired by, respectively, the contemporaneous ballet world’s intense regard for the virtuosity of the solo performer and its concomitant reliance on the collective brilliance of the corps de ballet, the dance troupe’s increasingly proficient plural “body.” It concentrates on Byron’s and Shelley’s longer works, including Childe Harold’s Pilgrimage, Don Juan, and Prometheus Unbound.
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Seaton, Anthony. "Those two impostors." In Why I Became an Occupational Physician and Other Occupational Health Stories, 111. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198862543.003.0090.

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In Those two impostors Anthony Seaton briefly explores the 2010 rescue of 33 trapped miners from the San Jose copper mine in Chile, and discusses the risks and health implications of the mining industry.
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Forgetta, Emanuela. "4 • Mercè Rodoreda." In La città e la casa Spazi urbani e domestici in Maria Aurèlia Capmany, Natalia Ginzburg, Elsa Morante e Mercè Rodoreda. Venice: Fondazione Università Ca’ Foscari, 2022. http://dx.doi.org/10.30687/978-88-6969-586-5/005.

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Il quarto capitolo è dedicato a Mercè Rodoreda e a Barcellona e si apre con un paragrafo che ripercorre i tragitti, e la finale catabasi, di una sua nota protagonista: Natàlia, altrimenti detta Colometa. Nel secondo paragrafo passeggiamo per le vie della città assieme ad Aloma e, in particolare, ci soffermiamo ad ammirare i giardini del quartiere di Sant Gervasi. Nel paragrafo che chiude il capitolo e, complessivamente, l’intera parte dedicata alla città, assistiamo ad una riscrittura della cartografia urbana grazie al camminare instancabile di un’altra grande presenza letteraria: Cecília Ce.
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"Renforcer sans tarder la concurrence, l'entrepreneuriat et l'innovation pour stimuler la croissance de la productivité." In Études économiques de l'OCDE : Chili 2010, 73–112. OECD, 2010. http://dx.doi.org/10.1787/eco_surveys-chl-2010-6-fr.

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De Costa, Elena Maria. "The Sociopolitical Discourse of Violeta Parra and Víctor Jara - The Culture of People's Power." In Advances in Media, Entertainment, and the Arts, 109–26. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1986-7.ch006.

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While its roots lie deep in Latin American culture and history, the New Song music was first brought to the attention of the world when totalitarian military regimes seized power in South America during the 1970s. Torture, death, persecution, or disappearance became the tragic fate of thousands of citizens including Violeta Parra and Victor Jara of Chile, popular and talented singer-songwriters (cantautores), the latter executed for his songs of justice and freedom. Other New Song artists were driven into exile to avoid a similar fate. Later, during the 1980s, a second, deadlier wave of terror swept through Central America in genocidal proportions. Again, New Song artists urgently sang about these horrific human rights violations, denouncing the perpetrators of this violence and telling the story of the struggle of people resisting. Beyond the desired social space in which to talk about horrific human rights abuses, there is a deep history of social commentary in musical and other performative traditions in Latin America.
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Soto, María-Victoria, Misael Cabello, and Joselyn Arriagada-González. "Current Geodynamics and Evolutionary Trends of a Headland Bay Beach System in the Semi-Arid Coast of Chile." In Coastal Environments. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.94967.

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The Chilean coast is controlled by the tectonics and structure, generating an irregular coastal landscape, with bays, marine terraces, sandy and gravel beaches, sand dune fields and Andean slopes, forming some mega cliffs that are attacked by waves. The Chilean coastline is shaped by headland bay beaches, with a dynamic coast modeled by south-western winds and south–north longshore current. We analyzed the case of the Coquimbo mega headland bay beach, which consists of four headland bay beaches. A methodological study was carried out on the morphometric parameters of the shoreline and the types of beaches dominated by waves along with geomorphological analysis of the coastal zone. We observed a mass transfer process from south to north. The northern sections of the bays are the places with the densest sand dune fields. This concentration of dunes occurs in each bay individually and in the mega bay as well. The sedimentary supply comes from Andean catchments to the shoreline and is transported and reworked by the longshore current to the northern area, where a huge sand field dune has developed, 120 km away from the mouth of Limarí River, the most southern catchment in the study area. In the mega bay, the current trend is a continuous sedimentary supply, despite the semi-arid conditions and the extreme drought that has affected the area since 2011. The study area is also a popular destination in Chile for beach tourism and is a place of interest for the mining industry.
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Conference papers on the topic "Chimie du sang"

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Capitaine, A., and J. M. Ruggieri. "REP sans Bore." In Chimie et exploitation. Les Ulis, France: EDP Sciences, 2016. http://dx.doi.org/10.1051/jtsfen/2016chi19p.

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Empler, Tommaso, Fabio Quici, Adriana Caldarone, Alexandra Fusinetti, and Maria Laura Rossi. "Chiese fortificate all’Isola d’Elba tra l’XI e XVI secolo." In FORTMED2020 - Defensive Architecture of the Mediterranean. Valencia: Universitat Politàcnica de València, 2020. http://dx.doi.org/10.4995/fortmed2020.2020.11483.

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Fortified churches between the eleventh and sixteenth centuries on Elba IslandAgainst the threat of Islamic, Norman and Greek pirates, starting from the eighth century, or due to conflicts with the Genoese, Catalans, Neapolitans and French, up to the English and Dutch corsairs from the sixteenth century, Elba island is organized with a respectable defensive apparatus, especially thanks to the Pisans and the Lordship of the Appiano. In addition to a system of fortresses, towers positioned on the shore of the beaches and watch towers placed on the mountain, the presence of some fortified churches from the eleventh century until the sixteenth century is very unusual: the church of San Niccolò in San Piero in Campo, the church of Sant’Ilario, the church of San Niccolò in Poggio, and of the church of Saints Martyrs Giacomo and Quirico in Rio nell’Elba. Main tasks of the research are: study of the transformations of the churches of San Niccolò in San Piero in Campo and of the church of Sant’Ilario, located on the southern slope of Monte Capanne, where was used the construction technique of the granite of the Elba; the way of communicating cultural heritage among scholars or tourists who are fascinated by such structures. Through an initial operation of instrumental survey with 3D laser scanning and drone photogrammetry it is possible to return the current 3D models of the churches. The second step goes on two main directions: on one hand identifying the conservative restoration operations for the fortified churches; on the other hand allowing the dissemination to a wider public of the history of the two fortified churches.
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Bardi, John C., Jyotirmoy Sircar, and J. Paul Smith-Pardo. "Post-Earthquake Repair and Improvements, San Vicente, Chile." In Proceedings of Ports '13: 13th Triennial International Conference. Reston, VA: American Society of Civil Engineers, 2013. http://dx.doi.org/10.1061/9780784413067.127.

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García, Redlich. "Evaluating the solar potential of rooftops on campus San Joaquín, Santiago - Chile using opensource GIS." In EuroSun 2020. Freiburg, Germany: International Solar Energy Society, 2020. http://dx.doi.org/10.18086/eurosun.2020.01.12.

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Williams, Brianna, Gary Michelfelder, and Drew Laviada-garmon. "PLAGIOCLASE ZONING AS AN INDICATOR OF MAGMA PROCESSES AT SAN PEDRO VOLCANO, CENTRAL VOLCANIC ZONE, CHILE." In Joint 55th Annual North-Central / 55th Annual South-Central Section Meeting - 2021. Geological Society of America, 2021. http://dx.doi.org/10.1130/abs/2021nc-362943.

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Hossein Banejad, Reza Pirtaj hamedani, Navab Daneshi, and Mehdi Mokari. "Removal of iron and manganese existing in water in presence of sulfate by rapid sand filter." In 21st Century Watershed Technology: Improving Water Quality and Environment Conference Proceedings, 29 March - 3 April 2008, Concepcion, Chile. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2008. http://dx.doi.org/10.13031/2013.24315.

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Doerr, Octavio, Alan Harding, John Hayman-Joyce, and Miguel Valenzuela Gavilan. "EVOLUTION OF THE SHORELINE AT SAN ANTONIO, CHILE AND ITS INFLUENCE ON THE DEVELOPMENT OF THE PORT." In Proceedings of the 28th International Conference. World Scientific Publishing Company, 2003. http://dx.doi.org/10.1142/9789812791306_0266.

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Correa, Margarita C. G. "Research and development of a new biological control agent against the San José scale,Diaspidiotus perniciosus, in Chile." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.93827.

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Godoy, Benigno, Petrus le Roux, Frances Deegan, Dieter Garbe-Schönberg, Osvaldo González-Maurel, and Inés Rodríguez. "Boron isotope systematics in the magmatic evolution of San Pedro and La Poruña volcanoes, Central Andes, northern Chile." In Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.4106.

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Lee, J., D. Hartl, CA Da Silva, RJ Homer, JA Elias, and CG Lee. "In Vivo Chitin Induces Neutrophil and Eosinophil Inflammation in the Lung Via Dectin-1 Dependent Pathway." In American Thoracic Society 2009 International Conference, May 15-20, 2009 • San Diego, California. American Thoracic Society, 2009. http://dx.doi.org/10.1164/ajrccm-conference.2009.179.1_meetingabstracts.a6092.

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Reports on the topic "Chimie du sang"

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Depositional environments of the Upper Triassic Chinle Formation in the eastern San Juan Basin and vicinity, New Mexico. Trace fossils and mollusks from the upper member of the Wanakah Formation, Chama Basin, New Mexico; evidence for a lacustrine origin. Stratigraphy, facies, and paleotectonic history of Mississippian rocks in the San Juan Basin of northwestern New Mexico and adjacent areas. US Geological Survey, 1989. http://dx.doi.org/10.3133/b1808bd.

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