Modern sugarcane varieties are complex aneuploids and typically have chromosome numbers in the 10... more Modern sugarcane varieties are complex aneuploids and typically have chromosome numbers in the 100-125 range with about 5-10% of them contributed by wild relatives, mainly Saccharum spontaneum, and the rest by S. officinarum. This particular genomic constitution was found favorable for mapping the S. spontaneum genome, using maize as a diploid reference for comparison. We conducted an analysis of 32 individuals derived from the selfing of variety SP 701006 using four isozymes and 53 maize probes which covered the whole maize genome. A total of 348 segregating bands were generated. Highly significant cosegregations enabled us to place 94 markers into 25 cosegregation groups. Eighteen of these groups involved S. spontaneum specific markers and might therefore mark S. spontaneum chromosomes in segregation. On the basis of probes in common, the 25 cosegregation groups could be assembled into eight tentative linkage groups, of which seven describe S. spontaneum chromosomes. A large degree of synteny between sugarcane and maize could be inferred, with a much lower rate of recombination in sugarcane.
The purpose of the current paper is to revindicate the role of emotions in the explanatory model ... more The purpose of the current paper is to revindicate the role of emotions in the explanatory model of the conscious experience. The discussion begins with the problem that brought the omission of emotional process in the explanation of psychological functions and mental states. The following step is the delimitation of the concept of conscious experience and related terms. My interest
Incidence of potato tuber infection by Phytophthora infestans is low in Ecuador. Factors consider... more Incidence of potato tuber infection by Phytophthora infestans is low in Ecuador. Factors considered to potentially affect the incidence of tuber infection include pathogen aggressiveness, host resistance, direct suppression from biological and chemical ...
al., 1990; Godshalk et al., 1990; Boppenmeier et al., 1992; Melchinger, 1993). Genetic distance h... more al., 1990; Godshalk et al., 1990; Boppenmeier et al., 1992; Melchinger, 1993). Genetic distance has been used Estimation of genetic diversity and distance among tropical maize to predict hybrid performance and the efficiency of pre- (Zea mays L.) lines and the correlation between genetic distance (GD) and hybrid performance would determine breeding strategies, diction was greater with crosses between inbred
Registration of cancer and mortality after the death of a spouse were assessed using data from th... more Registration of cancer and mortality after the death of a spouse were assessed using data from the longitudinal study of the Office of Population Censuses and Surveys (OPCS). The study population comprised 1% of the people counted in England and Wales in the 1971 census, for whom data on subsequent vital events were linked with their census records. There was little evidence of an increase in registrations of cancer after the death of a spouse and only a slight suggestion of increased mortality from cancer. For other causes of death there was some evidence of increases in mortality during widow(er)hood. In so far as the death of a spouse is often a very stressful event, these data may be interpreted as providing little support for the hypothesis that stress is implicated in the aetiology of cancer.
Nuevas investigaciones sobre la ocupación prehispánica de la costa pampeana en el Holoceno tardío... more Nuevas investigaciones sobre la ocupación prehispánica de la costa pampeana en el Holoceno tardío: el sitio arqueológico Claromecó 1 (partido de Tres Arroyos, provincia de Buenos Aires) Recibido 5 de Diciembre 2007. Aceptado 12 de Abril 2008 RESUMEN Los materiales arqueológicos disponibles para entender la ocupación holocénica del litoral marítimo pampeano están constituidos casi exclusivamente por artefactos líticos depositados en la superficie de la faja de médanos. En tal situación, el sitio Claromecó 1 (CL1) se destaca por su posición en estratigrafía y la preservación de restos óseos que permitió establecer su cronología. En este artículo se presentan los resultados del análisis de los materiales líticos, cerámicos y faunísticos allí recuperados. A partir de los distintos estudios realizados, se aborda la historia tafonómica, la estacionalidad, la explotación faunística, y la tecnología lítica y cerámica. Los resultados del análisis lítico indican que se han tallado mediante la...
Left ventricle non-compaction cardiomyopathy is currently considered as a well-defined individual... more Left ventricle non-compaction cardiomyopathy is currently considered as a well-defined individual entity. However, it includes a broad spectrum of clinical, radiological and pathophysiological findings. In this review we describe 3 different scenarios of this entity: anisolated case with severe left ventricle dysfunction, an "associated" case in a patient withprevious atrial septum defect and pulmonary stenosis and finally, as a finding in a patient with a transient cerebrovascular ischemic attack. In the 2 last cases, both asymptomatic, morphological criteria of left ventricle non-compaction were found but, ventricular function wasnormal and cardiac-MRI showed no late gadolinium hyperenhancement. Periodical follow-up and familial screening were recommended. Natural history and prognosis factors of this disease are still not well known. Further and longer series of patients with this diagnosis are needed to completely define radiological criteria, clinical presentation and...
Modern sugarcane varieties are complex aneuploids and typically have chromosome numbers in the 10... more Modern sugarcane varieties are complex aneuploids and typically have chromosome numbers in the 100-125 range with about 5-10% of them contributed by wild relatives, mainly Saccharum spontaneum, and the rest by S. officinarum. This particular genomic constitution was found favorable for mapping the S. spontaneum genome, using maize as a diploid reference for comparison. We conducted an analysis of 32 individuals derived from the selfing of variety SP 701006 using four isozymes and 53 maize probes which covered the whole maize genome. A total of 348 segregating bands were generated. Highly significant cosegregations enabled us to place 94 markers into 25 cosegregation groups. Eighteen of these groups involved S. spontaneum specific markers and might therefore mark S. spontaneum chromosomes in segregation. On the basis of probes in common, the 25 cosegregation groups could be assembled into eight tentative linkage groups, of which seven describe S. spontaneum chromosomes. A large degree of synteny between sugarcane and maize could be inferred, with a much lower rate of recombination in sugarcane.
The purpose of the current paper is to revindicate the role of emotions in the explanatory model ... more The purpose of the current paper is to revindicate the role of emotions in the explanatory model of the conscious experience. The discussion begins with the problem that brought the omission of emotional process in the explanation of psychological functions and mental states. The following step is the delimitation of the concept of conscious experience and related terms. My interest
Incidence of potato tuber infection by Phytophthora infestans is low in Ecuador. Factors consider... more Incidence of potato tuber infection by Phytophthora infestans is low in Ecuador. Factors considered to potentially affect the incidence of tuber infection include pathogen aggressiveness, host resistance, direct suppression from biological and chemical ...
al., 1990; Godshalk et al., 1990; Boppenmeier et al., 1992; Melchinger, 1993). Genetic distance h... more al., 1990; Godshalk et al., 1990; Boppenmeier et al., 1992; Melchinger, 1993). Genetic distance has been used Estimation of genetic diversity and distance among tropical maize to predict hybrid performance and the efficiency of pre- (Zea mays L.) lines and the correlation between genetic distance (GD) and hybrid performance would determine breeding strategies, diction was greater with crosses between inbred
Registration of cancer and mortality after the death of a spouse were assessed using data from th... more Registration of cancer and mortality after the death of a spouse were assessed using data from the longitudinal study of the Office of Population Censuses and Surveys (OPCS). The study population comprised 1% of the people counted in England and Wales in the 1971 census, for whom data on subsequent vital events were linked with their census records. There was little evidence of an increase in registrations of cancer after the death of a spouse and only a slight suggestion of increased mortality from cancer. For other causes of death there was some evidence of increases in mortality during widow(er)hood. In so far as the death of a spouse is often a very stressful event, these data may be interpreted as providing little support for the hypothesis that stress is implicated in the aetiology of cancer.
Nuevas investigaciones sobre la ocupación prehispánica de la costa pampeana en el Holoceno tardío... more Nuevas investigaciones sobre la ocupación prehispánica de la costa pampeana en el Holoceno tardío: el sitio arqueológico Claromecó 1 (partido de Tres Arroyos, provincia de Buenos Aires) Recibido 5 de Diciembre 2007. Aceptado 12 de Abril 2008 RESUMEN Los materiales arqueológicos disponibles para entender la ocupación holocénica del litoral marítimo pampeano están constituidos casi exclusivamente por artefactos líticos depositados en la superficie de la faja de médanos. En tal situación, el sitio Claromecó 1 (CL1) se destaca por su posición en estratigrafía y la preservación de restos óseos que permitió establecer su cronología. En este artículo se presentan los resultados del análisis de los materiales líticos, cerámicos y faunísticos allí recuperados. A partir de los distintos estudios realizados, se aborda la historia tafonómica, la estacionalidad, la explotación faunística, y la tecnología lítica y cerámica. Los resultados del análisis lítico indican que se han tallado mediante la...
Left ventricle non-compaction cardiomyopathy is currently considered as a well-defined individual... more Left ventricle non-compaction cardiomyopathy is currently considered as a well-defined individual entity. However, it includes a broad spectrum of clinical, radiological and pathophysiological findings. In this review we describe 3 different scenarios of this entity: anisolated case with severe left ventricle dysfunction, an "associated" case in a patient withprevious atrial septum defect and pulmonary stenosis and finally, as a finding in a patient with a transient cerebrovascular ischemic attack. In the 2 last cases, both asymptomatic, morphological criteria of left ventricle non-compaction were found but, ventricular function wasnormal and cardiac-MRI showed no late gadolinium hyperenhancement. Periodical follow-up and familial screening were recommended. Natural history and prognosis factors of this disease are still not well known. Further and longer series of patients with this diagnosis are needed to completely define radiological criteria, clinical presentation and...
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