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Title: Distance-based degrees of polarization for a quantum field
Author: Nuno-Arana, I.
Sahagun-Nunez, V.R.
Munoz-Valle, J.F.
Sandoval, L.
Pinto-Escalante, D.
Paez-Riberos, L.A.
Lazalde, B.
Maldonado-Gonzalez, M.
Rangel-Villalobos, H.
Issue Date: 2012
Abstract: Objectives: Some Single nucleotide polymorphisms (SNPs) of several candidate genes have been associated with low bone mineral density (BMD) and fracture risk. As the genetic variability of such SNPs in Hispanic and Native American populations is scarce, we analyzed the three SNPs that have been related with bone mass disorders (Sp1, A163G, and BsmI) located in the genes of Type I Collagen (COL1A1), Osteoprotegerin (OPG), and Vitamin D receptor (VDR) in Mexican Mestizos (people resulting from post-Columbian admixture) and five Amerindian populations. Methods: We genotyped these three SNPs by Polymerase chain reaction (PCR) and Restriction fragment length polymorphisms (RFLPs) in 523 individuals from five Mexican Amerindian groups (Nahua, Maya, Purépecha, Tarahumara, and Huichol) and 227 western Mestizos (Jalisco state). Results: The modal allele was the same in all the six populations for Sp1-COL1A1 (S > 77%), A163G-OPG (A > 80%), and BsmI-VDR (b > 62%). Genotype distribution was in Hardy-Weinberg equilibrium in all SNPs/populations, excepting Sp1-COL1A1 in the Purépecha group and BsmI-VDR in Mestizo. In terms of the presumably Sp1-COL1A1 risk allele to low BMD (allele "s"), the Purépecha group showed the highest allele (23%) and homozygous (14.5%) frequencies. If the role of this allele as a genetic predisposing factor to low BMD were confirmed, this would mean increased susceptibility of Purépechas with regard to Europeans (14.5 vs. 6.8%). Conclusions: This finding presumably could influence the genetic susceptibility to low BMD in Purépechas. For the SNPs, BsmI-VDR and A163G-OPG, relative homogeneity was observed among the Mexican populations analyzed here. " 2012 Wiley Periodicals, Inc.",,,,,,"10.1002/ajhb.22262",,,"","",,,,,,"4",,"American Journal of Human Biology",,"569
WOS",,,,"Index Medicus;Bone Density;Collagen Type I/ge [Genetics];Gene Frequency;Genetic Predisposition to Disease;Genotype;Humans;Indians, North American;Mexico;Osteoporosis/et [Etiology];Osteoporosis/ge [Genetics];Osteoprotegerin/ge [Genetics];Polymerase Chain Reaction;Polymorphism, Restriction Fragment Length;Polymorphism, Single Nucleotide;Receptors, Calcitriol/ge [Genetics]",,,,,,,,"Distribution of three SNPs related to low bone mineral density in Amerindian groups and Mestizos from Mexico",,"Article" "39075","123456789/35008",,"Serna,Jose Cruz Perez. IMSS Jalisco, Universidad de Guadalajara.",,"Serna JC
Ortiz JR
Servin AC
Espinoza AJ",,"2005",,"The prevalence of leptospirosis found in icteric patients negative to serological markers for hepatitis was described. 15.99 % of them were positive patients. It was observed a predominance of serovars canicola, pomona and icterohaemorrhagiae.",,"Record Owner: From MEDLINE, a database of the U.S. National Library of Medicine.; Status: MEDLINE; [Spanish]; Publishing Model: Journal available in: Print Citation processed from: Print; NLM Journal Code: rpx, 0074364; Entry Date: 20080102",,,,,,"0375-0760; 0375-0760","","",,"Spanish",,,,"1",,"Revista cubana de medicina tropical",,"57
58",,"57",,"MEDLINE",,,,,,"Index Medicus;Diagnosis, Differential;Hepatitis B/di [Diagnosis];Hepatitis C;Hepatitis, Viral, Human/di [Diagnosis];Humans;Jaundice/di [Diagnosis];Leptospira interrogans serovar canicola;Leptospira interrogans serovar icterohaemorrhagiae;Leptospira interrogans serovar pomona;Leptospirosis/di [Diagnosis];Leptospirosis/ep [Epidemiology];Prevalence;Weil Disease/di [Diagnosis];Weil Disease/ep [Epidemiology]",,,,,"Seropositividad a leptospiras en sueros de pacientes sospechosos de hepatitis viral negativos a marcadores serologicos.","[Seropositivity to leptospiras in sera from patients suspected of viral hepatitis negative to serological markers]",,"Journal Article" "42518","123456789/35008",,"Klimov, A.B., Departamento de Física, Universidad de Guadalajara, 44420 Guadalajara, Jalisco, Mexico; Sánchez-Soto, L.L., Departamento de óptica, Facultad de Física, Universidad Complutense, 28040 Madrid, Spain; Yustas, E.C., Departamento de óptica, Facultad de Física, Universidad Complutense, 28040 Madrid, Spain; Sederholm, J., Institute of Quantum Science, Nihon University, 1-8 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8308, Japan; Bjork, G., School of Information and Communication Technology, Royal Institute of Technology (KTH), Electrum 229, SE-164 40 Kista, Sweden
Klimov, Andrei B., Universidad de Guadalajara. Centro Universitario de Ciencias Exactas e Ingenierías",,"Klimov, Andrei B.
Sanchez-Soto, L.L.
Yustas, E.C.
Soderholm, J.
Bjork, G.",,"2005",,"It is well established that unpolarized light is invariant with respect to any SU(2) polarization transformation. This requirement fully characterizes the set of density matrices representing unpolarized states. We introduce the degree of polarization of a quantum state as its distance to the set of unpolarized states. We use two different candidates of distance, namely the Hilbert-Schmidt and the Bures metric, showing that they induce fundamentally different degrees of polarization. We apply these notions to relevant field states and we demonstrate that they avoid some of the problems arising with the classical definition. " 2005 The American Physical Society.
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