Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Yucatán" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-5 z 5
    Tytuł:
    Conservation of the genetic diversity of local corn (Zea mays L.) in the Yucatan Peninsula, Mexico
    Autorzy:
    González-Valdivia, Noel A.
    Cetzal-Ix, William
    Basu, Saikat Kumar
    Pérez-Ramírez, Isidra
    Martínez-Puc, Jesús F.
    Zandi, Peiman
    Powiązania:
    https://bibliotekanauki.pl/articles/2182157.pdf
    Data publikacji:
    2016-12-31
    Wydawca:
    Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
    Tematy:
    Campeche
    conservation
    corn
    cultivation
    diversity genetic
    Mexico
    Yucatán
    Opis:
    The production of native corn at regional level is greatly limited by the seasonality of rainfall, availability of adequate lands, poor fertility status of the soil, high input costs and constraints of resources of the local corn growers and/or producers. The challenges of reduced cultivable area give very little opportunity for increasing production area in a sustainable manner; it is important to note that the soil recover their fertility status through crop rotation and prolonged rest period (> 25 years) known as sequential agroforestry system or "milpa". During 2015, corn collections were performed in the Yucatan Peninsula, Mexico that included five races from the Yucatan (in localities of Nohacal and Peto) and Campeche (Calakmul, Suc-Tuc, Sakabchen, I Chek) states. The races identified were: 1) Nal-Tel (gallito), 2) Dzit Bacal, 3) Xnu’uc Naal (Tuxpeño), 4) Palomero and, 5) Tabloncillo. The local varieties, Pix Cristo (Knees of Christ), Eh Hu (Purple maize) and Chac Chu’ub (Chac´s Blood or Red maize), are included within the Tuxpeño (Xnu´uk Naal) race. The land race of corn that is in imminent danger of extinction is Nal-Tel, characterized by its precocity and ability to escape periods of low rainfall; is important to rescue it for adoption to the practices of local and regional production. The adaptation of this race as a germplasm is important due to its resilience to climate change itself. Palomero, Tabloncillo, Pix Cristo, Chac Chu´ub and Eh Hu can thus be used in traditional food industry, to preserve the traditional knowledge and to provide opportunities for additional income for the local, rural communities. Yellow Palomero and Tabloncillo races are new records of germplasm for the region; and hence essential is exchanging their seeds among local producers and growers.
    Źródło:
    Annales Universitatis Paedagogicae Cracoviensis Studia Naturae; 2016, 1; 71-84
    2543-8832
    2545-0999
    Pojawia się w:
    Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Czy istnieje sezonowy rytm rozwoju w warunkach tropikalnych? (Raport 1 z dwuletnich comiesięcznych badań na Jukatanie w Meksyku)
    Does a seasonal developmental rhythm in tropical conditions exist? (The first report from the monthly-two-year studies in Yucatan, Mexico)
    Autorzy:
    Siniarska, Anna
    Rojas, Armando
    Valentin, Graciela
    Wolański, Napoleon
    Dickinson, Federico
    Powiązania:
    https://bibliotekanauki.pl/articles/1817847.pdf
    Data publikacji:
    2004-12-31
    Wydawca:
    Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
    Tematy:
    ekologia człowieka
    Jukatan
    Meksyk
    human ecology
    Yucatan
    Mexico
    Opis:
    The main aim of this work concerns the answer to the question of whether the general regularity of seasonal differences in changes of height, weight, and body components during ontogeny in tropics exists. If so, whether this phenomenon depends on cyclic changes in nature or this rather is an adjustment to local conditions and mode of life.  To answer this question the studies took place in the tropical climate of Yucatan and included 49 boys and 47 girls aged 11-12 years and being of Maya, Mestizo, and Creole origin. The youths were attending two schools that were located in rather poor districts of Merida (the capital city of the Yucatan State, Mexico). The investigations started in February 2002 and ended in November 2003 and were continued monthly. The standard anthropometric methodology was applied to measure body height, weight, arm, waist, hip, and calf circumferences, and five subcutaneous fat folds (biceps and triceps brachii, subscapular, suprailiac and calf). Bioimpedance techniques were used to estimate fat mass (FM ), fat-free mass (FFM ), and total body water (TBW). The results show that general regularities in monthly or longer rates of stature increments and increments or declines of body mass do not exist. There are not similar regularities of changes even in groups of coevals of the same gender and within the youths coming from the same district. Each variable shows a quite specific rate of change.
    Źródło:
    Studia Ecologiae et Bioethicae; 2004, 2, 1; 9-46
    1733-1218
    Pojawia się w:
    Studia Ecologiae et Bioethicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Low seroprevalence of Trypanosoma cruzi infection and chronic chagasic cardiomyopathy in a region with abundance of triatomine vectors in Yucatan Peninsula of Mexico
    Autorzy:
    Monteon, V.
    Solis-Oviedo, R.
    Lopez, R.
    Hernandez, O.
    Tellez, C.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/5865.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    seroprevalence
    Trypanosoma cruzi
    parasitic infection
    chronic Chagas cardiomyopathy
    Chagas disease
    triatomine vector
    Yucatan Peninsula
    Mexico
    Opis:
    The Yucatan Peninsula of Mexico is endemic with Chagas disease. The main vector responsible for Trypanosoma cruzi transmission is Triatoma dimidiata which is abundant in domestic, peridomestic and sylvan cycles. The abundance of vectors favours T. cruzi transmission and is a high risk for developing chronic chagasic cardiomyopathy (CCC). In the past 10 years, little information was available on parasite seroprevalence and the prevalence of CCC in the Yucatan Peninsula. In the present work, we studied two Mayan communities with a high abundance of T. dimidiata and a random serial sample of 233 patients with an altered electrocardiogram or cardiac failure admitted to the Regional Hospital. A homemade enzyme-linked immunosorbent assay and indirect immunofluorescence standardized techniques were used to detect anti-T. cruzi IgG. In addition, Mayan volunteers were monitored by electrocardiography. In the Mayan communities, 4.8% (3/63) subjects were positive for T. cruzi antibodies none of them presented electrocardiographic alterations, however in seronegative subjects were detected right or left ventricle hypertrophy in 25% (16/63). A remarkable finding was that 90% of the Mayan population recognized the vector and 65% of them had experienced contact with triatomines bites. At the Regional Hospital 0.42% (1/233) were positive for T. cruzi antibodies showing compatible diagnosis with CCC; the most frequent pathology in this population was hypertension in 65% (151/233) and the less frequent was dilated myocardiopathy 6% (14/233). In conclusion, the prevalence of T. cruzi infection and CCC can be considered low in Yucatan, Mexico.
    Źródło:
    Annals of Parasitology; 2015, 61, 4
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sprawność fizyczna dzieci wiejskich i miejskich z niskiej grupy społeczno-ekonomicznej na Jukatanie (Meksyk)
    Physical fitness of urban and rural schoolchildren from low social strata in Yucatan, Mexico
    Autorzy:
    Aftanasiuk, Maryla
    Powiązania:
    https://bibliotekanauki.pl/articles/1817895.pdf
    Data publikacji:
    2003-12-31
    Wydawca:
    Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
    Tematy:
    ekologia człowieka
    sprawność fizyczna
    Meksyk
    Jukatan
    obszary wiejskie
    dzieci
    human ecology
    Physical fitness
    rural schoolchildren
    urban schoolchildren
    Yucatan
    Mexico
    Opis:
    Body build and physical fitness of schoolchildren of low socioeconomic strata from urban and rural areas of Yucatan were studied. The material consisted of 552 children from Merida (the capital city of Yucatan State, Mexico) and of 526 children from the Yaxcaba horticultural community, 7 through 14 years of age. These are cross-sectional samples studied in 1996-97 in Merida and in 1999 and 2000 in Yaxcaba. The ethnic origin was evaluated using two surnames of children (from the father and mother side). The studied variables included stature, BMI, arm circumference, grip strength, agility run, Sargent vertical jump index (explosive strength), spine flexibility index, and reaction time. Urban children are significantly taller than rural ones, and BMI and arm circumference show also a tendency to be greater in urban areas. Physical fitness tests are better performed (better results) in rural areas than in urban ones. If the whole material is divided according to two ethnic groups (Mayas and Mestizos, and Creoles)  the differences in body build are still observed but those in physical fitness disappeared. Creole children are taller than Mayas and Mestizos and they show a tendency to have more weight for height and greater arm circumference. Generally, the differences in physical fitness are only observed between rural and urban children what may be caused by a more active way of life in villages than in towns resulting from agricultural activity. However, differences in stature are observed between ethnic as well as between rural and urban groups. This may have the genetic origin (Creoles and Mayas), and in the case of different localities, it may also be caused by more various nutrition in towns than in villages.
    Źródło:
    Studia Ecologiae et Bioethicae; 2003, 1, 1; 127-140
    1733-1218
    Pojawia się w:
    Studia Ecologiae et Bioethicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Panorama demograficzna meksykańskiej części Półwyspu Jukatan w latach 1990-2010
    Demographic panorama of the Mexican part of the Yucatan Peninsula in 1990-2010
    Autorzy:
    Winiarczyk-Raźniak, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/1368609.pdf
    Data publikacji:
    2020-12-14
    Wydawca:
    Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
    Tematy:
    Majowie
    Meksyk
    migracje
    Półwysep Jukatan
    przemiany demograficzne
    przyrost naturalny
    struktura płci i wieku
    birth rate
    demographic changes
    gender and age structures
    Maya people
    migration
    Mexico
    Yucatan Peninsula
    Opis:
    Półwysep Jukatan, w granicach Meksyku podzielony administracyjnie na trzy stany: Campeche, Quintana Roo oraz Yucatán, charakteryzuje się specyficznymi cechami przemian demograficznych. Zamieszkany jest przez wieloetniczne, wielokulturowe oraz wielojęzyczne społeczeństwo. Przeszłość historyczna tego obszaru, od czasów prekolumbijskich do współczesności, w dużym stopniu zaważyła na procesach i tendencjach, jakie kształtowały obraz demograficzny tego regionu. Celem opracowania jest analiza demograficznych i społecznych przemian, jakie zachodzą na terenie badanych trzech meksykańskich stanów, na przełomie XX i XXI w. Badanie dotyczy zmian liczby ludności, poziomu urbanizacji, przyrostu naturalnego, migracji oraz struktur płci i wieku w latach 1990 – 2010. Analizy statystyczne oparto o dane zaczerpnięte z kolejnych trzech spisów ludności Meksyku: w 1990, 2000 i 2010 r. Na badanym obszarze zaobserwowano wzrost gęstości zaludnienia, szczególnie w gminach na terenie których zlokalizowane są duże miasta. W badaniu zwraca uwagę również wzrost poziomu urbanizacji, przy jednoczesnym występowaniu gmin pozostających bez ośrodków miejskich. Najbardziej zauważalne kontrasty demograficzne na półwyspie można zaobserwować między regionami wiejskimi a miejskimi. W badanym okresie zauważono z kolei wyraźny spadek przyrostu naturalnego, w szczególności w obszarach wysoko zurbanizowanych. Zmiany modelu prokreacji oraz rodziny widoczne są również na przykładzie piramid płci i wieku. Wskazują one na zmiany w liczbie urodzeń oraz na odejście od cech charakterystycznych dla społeczeństwa słabo rozwiniętego. Bardzo ważnym bodźcem, wpływającym na przemiany demograficzne na badanym terenie są migracje, skupiające ludność przede wszystkim na obszarach dużych miast, oraz w gminach je otaczających.
    The Yucatan Peninsula, within the Mexican borders administratively divided into three states: Campeche, Quintana Roo and Yucatán, is characterized by specific features of demographic change. This region is inhabited by a multiethnic, multicultural and multilingual society. The historical past of this area, from pre-Columbian times to the present day, largely influenced the processes and tendencies that shaped the demographic picture of the region. The aim of the study is to analyze the demographic and social changes that are taking place in the three Mexican states studied at the turn of the 20th and 21st centuries. The study concerns population changes, urbanization level, birth rate, migration as well as gender and age structures in the years 1990 - 2010. Statistical analyzes were based on data taken from the next three censuses of Mexico: in 1990, 2000 and 2010. An increase in the population density was observed in the studied area, especially in communes in which large cities are located. The study also notes the increase in the level of urbanization, with the simultaneous occurrence of municipalities without urban centers. The most noticeable demographic contrasts on the peninsula can be observed between rural and urban regions. In the examined period a clear decrease in the birth rate was noted, especially in highly urbanized areas. Changes in the procreation model and the family are also visible on the example of sex and age pyramids. They point to changes in the number of births and a departure from the characteristics of an underdeveloped society. A very important stimulus affecting demographic changes in the studied area are migrations, focusing the population primarily on the areas of large cities and in the surrounding municipalities.
    Źródło:
    Annales Universitatis Paedagogicae Cracoviensis Studia Geographica; 2020, 15; 103-117
    2084-5456
    Pojawia się w:
    Annales Universitatis Paedagogicae Cracoviensis Studia Geographica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies