scholarly journals The density of Siasia (Sipunculus nodus) population based on the differences in the substrate of the sea grasses beds on the waters of Saparua Island

2021 ◽  
Vol 1 (1) ◽  
pp. 11-16
Author(s):  
Yoin Meissy Matulessy ◽  
Ali Awan ◽  
Sintje Liline
Keyword(s):  
Population Density ◽  
Population Based ◽  
Living Environment ◽  
Marine Biota ◽  
Mangrove Forests ◽  
Nutritional Content ◽  
Factors Affecting ◽  
Marine Life ◽  
Good Living ◽  
Marine Worms

Sipuncula, a marine biota which is commonly called a peanut worm, is a marine biota that is a little "controversial".  Some literature also refers to these animals as "unsegmented marine worms" or unsegmented marine worms. Siasia (Sipunculus nodus) usually lives in coastal areas, especially around seagrass beds, mangrove forests, and coral reefs. These biotas tend to inhabit the bottom of the waters, especially in the substrate, so they are categorized as infauna benthic organisms. Siasia (S. nodus) can inhabit soft and hard substrate areas. Based on its ecological function, seagrass forms associations with various kinds of marine life as food providers, shelters, and places to live, causing high diversity of marine life. The basic substrate in the form of flat stones and gravel is a good living environment for macrozoobenthos because it is rich in organic compounds so it has a big population density and diversity.The bottom of the waters in the form of sand and fine sediment is not a good living environment for benthic animals. Factors affecting density and diversity are environmental conditions, habitat, and diet. The same factors also affect the nutritional content of Siasia (S. nodus). So, it is feared that when the population density of Siasia (S. nodus) becomes high in the water there will be competition for food which will have a direct impact on the nutritional content of Siasia (S. nodus). The population density of each water is different, so it is necessary to research the population density of Siasia (S. nodus) based on differences in the substrate of the seagrass area in the waters of Saparua Island, Maluku Province, Central Maluku Regency. The highest population density value of Siasia (Sipunculus nodus) in Saparua Island waters is found in Siri-sori State and the lowest is in Paperu Country.

scholarly journals PROBLEMS OF URBANIZATION IN THE CONTEXT OF CREATING A COMFORTABLE URBAN ENVIRONMENT

2019 ◽  
pp. 27-31
Author(s):  
N. Musinova
Keyword(s):  
Population Density ◽  
Urban Environment ◽  
Living Environment ◽  
High Population ◽  
High Population Density ◽  
Factors Affecting ◽  
Parking Lots ◽  
The Creation ◽  
Negative Factors

Urbanization, which changes the habitual living environment of people, in the process of its development leads to increased negative factors, affecting their livelihoods and health. A number of problems, associated with the development of cities: high population density, changes in insolation norms, lack of space for the formation of a comfortable urban environment, etc has been considered in the article. The attention has been focused on the fact, that the revision of such standards as insolation time, location of parking lots, etc., associated with the creation of compact cities, should be balanced.

scholarly journals Size-at-maturity shift in a male-only fishery: factors affecting molt-type outcomes in Newfoundland and Labrador snow crab (Chionoecetes opilio)

2020 ◽  
Author(s):  
Darrell R J Mullowney ◽  
Krista D Baker
Keyword(s):  
Population Density ◽  
Newfoundland And Labrador ◽  
Cold Water ◽  
Large Male ◽  
Snow Crab ◽  
Size At Maturity ◽  
Chionoecetes Opilio ◽  
Factors Affecting ◽  
Male Density ◽  
Process Factors

Abstract A sex-asymmetric downward shift in size-at-terminal-molt has recently occurred in males in some portions of the Newfoundland and Labrador (NL) snow crab stock range, a first known occurrence for such processes in snow crab (Chionoecetes opilio) stocks. This study examines plausible factors promoting the shift in size-at-terminal-molt [synonymous with size-at-maturity (SaM)] including individual size, temperature, population density, and sex ratio. Analyses highlight expanse of cold water and large male density as being significant predictors of molt-type outcomes. A confluence of cold conditions and low density of large males promoted the SaM shift. In turn, the low male density was associated with recently elevated fishery exploitation rates under quota-controlled management. It remains unknown the extent to which the reduction in terminal size reflects a phenotypic vs. genotypic process. Factors affecting skip-molting in male snow crab are investigated, and we find that skip-molting occurs most frequently under extreme cold and high population density conditions. Potential complications arising from altered growth dynamics are discussed. Overall, the results advance knowledge on intraspecific competition processes within snow crab populations and inform fisheries management systems that male-only harvest strategies do not provide full protection from biological harm to aquatic resources through fishing.

Open teaching mode of environmental design major in colleges

2021 ◽  
pp. 002072092110052
Author(s):  
Yi Zhang ◽  
Yingjiao Chen
Keyword(s):  
Environmental Design ◽  
Living Environment ◽  
Theory And Practice ◽  
Basic Material ◽  
Chinese People ◽  
Teaching Mode ◽  
Good Living ◽  
Economic Construction ◽  
Considerable Damage

With the acceleration of China's industrialized cities, economic construction and social development have caused considerable damage to the natural environment. Having a good living environment has become an urgent need of the Chinese people, who have already met their basic material needs. This paper mainly adopts the method of combining theoretical analysis with case study. From the perspective of theory and practice, this paper studies the following contents: the present situation of teaching development and reflection on the environmental design specialty in China, the characteristics of open teaching mode, combined with the setting of environmental design specialty curriculum system and the teaching conditions of related specialties in Chinese universities. This study takes the open teaching mode of ordinary colleges and universities as the research object, and takes a university in China as an example to study the open teaching mode.

scholarly journals Neighbourhood characteristics as a predictor of adherence to dietary recommendations: A population-based cohort study of Finnish adults

2020 ◽  
pp. 140349482097149
Author(s):  
Hanna Lagström ◽  
Jaana I. Halonen ◽  
Sakari Suominen ◽  
Jaana Pentti ◽  
Sari Stenholm ◽  
...  
Keyword(s):  
Population Density ◽  
Dietary Habits ◽  
Metabolic Diseases ◽  
Adult Population ◽  
Age Groups ◽  
Population Based ◽  
Dietary Recommendations ◽  
Neighbourhood Characteristics ◽  
Severe Life Events ◽  
Dietary Score

Aims: To investigate the association of six-year cumulative level of socioeconomic neighbourhood disadvantage and population density with subsequent adherence to dietary recommendations, controlling for preceding dietary adherence, in adults in Finland. Methods: Population-based Health and Social Support (HeSSup) study participants from four age groups (20–24, 30–34, 40–44 and 50–54 years at baseline in 1998). Data on diet and alcohol consumption were obtained from the 2003 and 2012 surveys and information on neighbourhoods from Statistics Finland Grid database ( n = 10,414 men and women). Participants diet was measured as adherence to Nordic Nutrition recommendation (score range 0–100). Neighbourhood disadvantage was measured by median household income, proportion of those with primary education only and unemployment rate, and population density by the number of adult population between years 2007 and 2012. Linear models were used to assess the associations of neighbourhood characteristics with the score for adherence to dietary recommendations in 2012. Results: Cumulative neighbourhood socioeconomic disadvantage was associated with slightly weaker (1.49 (95% confidence interval (CI) −1.89 to −1.09) point decrease in dietary score) adherence while higher population density was associated with better (0.70 (95% CI 0.38−1.01) point increase in dietary score) adherence to dietary recommendations. These associations remained after controlling for prior dietary habits, sociodemographic, chronic cardio-metabolic diseases, and severe life events. Conclusions: These longitudinal findings support the hypothesis that neighbourhood characteristics affect dietary habits.

scholarly journals A population-based exposure assessment of risk factors associated with gastrointestinal pathogens: a Campylobacter study

2012 ◽  
Vol 141 (5) ◽  
pp. 976-986 ◽  
Author(s):  
L. A. MacRITCHIE ◽  
C. J. HUNTER ◽  
N. J. C. STRACHAN
Keyword(s):  
Risk Factors ◽  
Population Density ◽  
Exposure Assessment ◽  
Disease Incidence ◽  
Univariate Analysis ◽  
Age Groups ◽  
Multivariate Logistic Regression Analysis ◽  
Environmental Water ◽  
Population Based ◽  
Elevated Exposure

SUMMARYA questionnaire survey was undertaken to determine the exposure of a study population to campylobacteriosis source risk factors (environmental, water, food) and results were stratified by age, population density and deprivation. Data were gathered using an exposure assessment carried out by telephone in the Grampian region of Scotland. Univariate analysis showed that children aged 5–14 years, living in low population density (0–44·4 persons/km2) and affluent areas had elevated exposure to environmental and water risk factors. Multivariate logistic regression analysis revealed that younger age groups and lower population density were significant indicators for most environmental risk factors. The results compared to reported disease incidence in Grampian showed that greater exposure to risk factors does not necessarily coincide with greater disease incidence for age groups, particularly for the 0–4 years age group. Further research is required to explain the relationship between exposure and disease incidence.

A Population-Based Study of Factors Affecting the Use of Radiotherapy for Endometrial Cancer

2012 ◽  
Vol 24 (8) ◽  
pp. e113-e124 ◽  
Author(s):  
T.P. Hanna ◽  
H. Richardson ◽  
Y. Peng ◽  
W. Kong ◽  
J. Zhang-Salomons ◽  
...  
Keyword(s):  
Endometrial Cancer ◽  
Population Based ◽  
Population Based Study ◽  
Factors Affecting

Pemanfaatan Peta Tematik dalam Perencanaan Pembangunan Sarana dan Prasarana Pendukung Pariwisata Daerah di Kabupaten Pangandaran

Tunas Agraria ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 1-19
Author(s):  
Rizka Fakhrizatullah ◽  
Rochmat Martanto ◽  
Yendi Sufyandi
Keyword(s):  
Land Use ◽  
Data Collection ◽  
Population Density ◽  
Literature Review ◽  
Qualitative Method ◽  
Thematic Maps ◽  
Coastal Tourism ◽  
Factors Affecting ◽  
Regional Autonomy

Abstract: Pangandaran is a district with a coastline of 91 Km, so this district has the potential for coastal tourism that needs to be developed. As a new regency of regional autonomy, demands to carry out construction of facilities and infrastructure to support tourism need to be increased. This study aims to determine the distribution of facilities and infrastructure that need to be developed and to know the factors that influence the determination of the construction of facilities and infrastructure. This research uses qualitative method, data collection is done through literature review and interviews. The results of the study indicate that the factors affecting the distribution of infrastructure include land use, population density, tourism objects, land slope and disaster vulnerability. The analysis shows that the distribution of villages suitable for the development of infrastructure includes the villages of Wonoharjo, Babadan, Pananjang and Pangandaran Village.Keyword: tourism, facilities and infrastructure, thematic maps. Intisari: Pangandaran merupakan kabupaten dengan garis pantai sepanjang 91 Km, sehingga kabupaten ini memiliki potensi pariwisata pantai yang perlu dikembangkan. Sebagai Kabupaten yang baru melakukan otonomi daerah, tuntutan untuk melaksanakan pembangunan sarana dan prasarana guna mendukung pariwisata perlu ditingkatkan. Kajian ini bertujuan untuk untuk mengetahui sebaran sarana dan prasarana yang perlu dikembangkan serta mengetahui faktor-faktor yang mempengaruhi penentuan pembangunan sarana dan prasarana. Penelitian ini menggunakan metode kualitatif, pengumpulan data dilakukan melalui kajian pustaka dan wawancara. Hasil kajian menunjukkan bahwa faktor-faktor yang mempengaruhi sebaran sarana prasarana meliputi penggunaan lahan, kepadatan penduduk, obyek wisata, kemiringan lahan dan kerawanan bencana. Dari hasil analisis menunjukkan bahwa sebaran desa yang sesuai untuk pengembangan sarana prasarana meliputi Desa Wonoharjo, Babadan, Pananjang dan Desa Pangandaran.Kata kunci: pariwisata, sarana dan prasarana, peta tematik.

scholarly journals Pemodelan Kasus DBD di Provinsi Jawa Timur dengan Metode Data Panel

2019 ◽  
Vol 8 (2) ◽  
pp. 101
Author(s):  
Annisa Dwinda Shafira
Keyword(s):  
Panel Data ◽  
Population Density ◽  
Time Series Data ◽  
Secondary Data ◽  
Series Data ◽  
Panel Regression ◽  
Affecting Factors ◽  
Factors Affecting ◽  
Panel Data Regression ◽  
Data Regression

The combination of panel data regression consist of time series data, it was collected based on a characteristic at a certain time (cross section). This research aimed to analyze the affecting factors and dominant factors of Dengue Hemoragic Fever (DHF) cases in East Java using panel data regression. This research uses secondary data published by the East Java Provincial Health Office, namely the Health Profile and the East Java Provincial Statistics Agency such as documents of each Districts/City in Numbers of East Java on 2014––2017 using total research population that were collected in all districts/cities in East Java Province. The data of new cases of DHF and factors affecting the incidence of DHF including clean and healthy living behavior in the household, poverty, population density, rainfall in East Java on 2014––2017. Panel regression analysis is used to determine the best model of the CEM, FEM and REM using Chow test, Hausman test and Langrange Multiplier test. Based on the results, the best model of panel regression is FEM with affecting variables such as poverty, population density, and rainfall.

scholarly journals Development of a health literacy scale for preconception care: a study of the reproductive age population in Japan

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Maiko Suto ◽  
Haruhiko Mitsunaga ◽  
Yuka Honda ◽  
Eri Maeda ◽  
Erika Ota ◽  
...  
Keyword(s):  
Health Literacy ◽  
Online Survey ◽  
Preconception Care ◽  
Population Based ◽  
Living Environment ◽  
Reproductive Age ◽  
Self Report ◽  
Healthy Weight ◽  
Cross Sectional ◽  
Behavioral Skills

Abstract Background Preconception care aims to improve both maternal and child health in the short as well as long term, along with providing health benefits to adolescents, women, and men, whether or not they plan to become parents. However, there is limited evidence regarding the effectiveness of interventions for improving preconception health in population-based settings. To accumulate evidence in this field, this study focused on the concept of health literacy, and aimed to develop a self-report health literacy scale in Japanese, focusing on preconception care. Methods We conducted a cross-sectional online survey. Participants were recruited from December 2019 to February 2020 from the registered members of a web-based research company. Participants were Japanese men and women aged 16–49 (n = 2000). A factor analysis was conducted to select both factors and items for health-related behavior and skills (33 initial items were generated), along with an item response theory analysis to examine how the 16 items were related to people’s knowledge of preconception care. Results We developed a 6-factor (including “appropriate medical examinations,” “appropriate diet,” “stress coping,” “healthy weight,” “safe living environment,” and “vaccinations”), 25-item behavior and skills scale, as well as a 13-item knowledge scale, to evaluate participants’ health literacy around preconception care. A shortened version, consisting of 17 items, was also prepared from the 25 items. The reliability coefficients of total scores and each factor of the behavior and skills scale were comparatively high, with weak-to-moderate correlation between behavior and skills and knowledge. Conclusions The new scale will, ideally, provide information on the current state of preconception care health literacy of the general population. In addition, this scale, which consists of both behavioral/skills and knowledge dimensions, should help support the effective implementation of risk assessment programs and interventions aimed at promoting behavioral changes using a population-based approach. Future studies using different question/administration formats for diverse populations, and considering respondents’ opinions on health literacy scales should be effective in improving this scale.

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