scholarly journals Theoretical aspects of the calculation the main design parameters of the electric bird repeller

2021 ◽  
Vol 937 (3) ◽  
pp. 032110
Author(s):  
D M Surinsky ◽  
I V Savchuk
Keyword(s):  
Bird Species ◽  
Wild Birds ◽  
Cultivated Plants ◽  
Design Parameters ◽  
Maximum Effect ◽  
House Sparrows ◽  
Large Cities ◽  
Almost Everywhere ◽  
Mass Reproduction ◽  
The City

Abstract The problem of scaring away birds was born in ancient times and remains relevant to this day. Birds tend to places where they are comfortable and stay there. Therefore, to achieve maximum effect, new and effective designs of electric bird repellers are needed. Currently, the territories of cities and their outskirts serve as a habitat not only for people and domestic animals, they are also a habitat for numerous species of wild birds. In the settlements and in their vicinity, a specific fauna of birds has formed. Its main features are a limited number of species and a large number of individuals. This is due to the fact that few bird species were able to adapt to the specific living conditions in the city. However, those who were able to adapt found in the city a favorable environment for rapid and mass reproduction. The number of synanthropic birds in large cities reaches tens and hundreds of thousands of individuals [2]. Synanthropic birds are wild birds that constantly live in the vicinity of humans or have found favorable nesting conditions in the territory of settlements and their environs. Many spheres of life of synanthropic birds are directly related to human activities, since the food of synanthropic birds is anthropogenic in nature, because their diet usually includes seeds of cultivated plants and all kinds of food waste [3]. In each region, different species of birds prevail, but there are patterns that are characteristic of the entire territory of Russia. Almost everywhere, the main representatives of the synanthropic are house sparrows and doves. In the central part of the country, you can safely add the hooded crow to this list. When moving towards the west, the number of crows decreases markedly.

scholarly journals Mexican Psittacids held in captivity in Puerto Escondido, Oaxaca and their welfare conditions

2021 ◽  
Vol 8 (2) ◽  
Author(s):  
Alejandra Buenrostro-Silva ◽  
Jesús García-Grajales ◽  
Jesús García-Grajales
Keyword(s):  
Bird Species ◽  
Common Species ◽  
Wild Birds ◽  
Interview Technique ◽  
Local Strategy ◽  
In Captivity ◽  
Domestic Use ◽  
The City ◽  
Excess Stress

Many bird species such as parrots and parakeets are held in captivity in various cities in Mexico as ornaments and pets. This study aimed to record the number of Psittacid species kept in captivity in the city of Puerto Escondido, Oaxaca, along with assessing their welfare conditions. Information was obtained from 195 bird keepers from March to May 2014, using the “snowball” interview technique. Information about their birds’ cost of acquisition, the season of sale, feeding and care were recorded. Additionally, an assessment of the welfare status of each bird was performed. A total of 245 Psittacid individuals were recorded, and all were illegal. Eupsittula canicularis was the most common species, and Amazona autumnalis was the least common. The most frequent welfare condition found was theabsence of feathers (73.5%), probably associated with excess stress caused by overcrowding. Keeping wild birds in captivity continues clandestinely;therefore, is necessary to create a local strategy that helps prevent the domestic use of the Psittacids as pets. 

scholarly journals Wild birds as pets in Campina Grande, Paraíba State, Brazil: An Ethnozoological Approach

2013 ◽  
Vol 85 (1) ◽  
pp. 201-213 ◽  
Author(s):  
MORGANA R. LICARIÃO ◽  
DANDARA M.M. BEZERRA ◽  
RÔMULO R.N. ALVES
Keyword(s):  
Bird Species ◽  
Wild Birds ◽  
Wild Animals ◽  
Structured Interviews ◽  
Public Markets ◽  
Direct Observations ◽  
The Family ◽  
Guided Tours ◽  
The City ◽  
Species Ecology

Birds are one of the animals most widely used by humans and are highly valued as pets. The present work reports the use of wild birds as pets in the city of Campina Grande, Paraíba State (PB), Brazil. The owners' choice and perceptions of the species ecology was assessed as well. The methodology employed included unstructured and semi-structured interviews, guided tours and direct observations. A total of 26 bird species distributed among ten families and four orders were identified. The most frequently encountered order was Passeriformes (76.9%), with a predominance of the family Emberizidae (34.6%). The specimens kept as pets were principally obtained in public markets or between the breeders themselves. The popularity of birds as pets, compounded by the inefficiency of official controls over the commerce of wild animals has stimulated the illegal capture and breeding of wild birds in Campina Grande.

Wartime activities of the Vavilov Institute

2021 ◽  
Vol 182 (2) ◽  
pp. 151-162
Author(s):  
I. G. Loskutov
Keyword(s):  
Plant Genetic Resources ◽  
Cultivated Plants ◽  
Left Behind ◽  
Long Time ◽  
Potato Collection ◽  
The Government ◽  
The Cost ◽  
The City ◽  
Harsh Reality ◽  
Difficult Part

Among the chronicles relating the heroism of the besieged Leningrad, there are pages dedicated to the deeds performed by the staff the world-famous All-Union Research Institute of Plant Industry (VIR, now the N.I. Vavilov All-Russian Institute of Plant Genetic Resources). With the beginning of the war, even before the city was surrounded by the Nazi troops, the government decided to evacuate a number of factories and institutes from Leningrad, including VIR, but the plan failed. Only in winter did the Institute start partial evacuation, although preparations had been going on for a long time. The largest and most important part of the collection was left behind in the besieged city. The remaining employees were forced to work under the hardest conditions of the siege, in unheated premises. In the harsh reality of the winter in 1941–1942, the daily bread rationing was cut down, and hunger raged in the city, killing tens of thousands of city residents, including VIR employees who kept the stored seeds and tubers untouched. The most difficult part was preserving the potato collection. In the spring of 1942, preparations were made for sowing to restore the viability of seeds and tubers in the fields of Leningrad’s suburban area under the fire from the enemy artillery. Only the heroic efforts of VIR’s staff helped to save the collection from destruction and loss of germination. This heroism cost more than 20 experts and scientists their lives. So, the most dangerous period for the Institute was overcome at such price. Immediately after the siege was lifted, a group of experts was sent to Leningrad from Krasnoufimsk to help with selecting seed accessions for urgent reproduction. Working under extreme physical exhaustion in frozen premises, without water or electricity, under continuous shelling, they saved, many at the cost of their own lives, the collection of cultivated plants and their wild relatives, the herbarium, and the scientific library for future generations. 

scholarly journals Dinámica de una metrópoli periférica en Brasil / Dynamics of a Peripheral Metropolis in Brazil

2010 ◽  
Vol 25 (2) ◽  
pp. 395 ◽  
Author(s):  
Inaiá María Moreira de Calvalho ◽  
Gilberto Corso Pereira
Keyword(s):  
Latin American ◽  
Spatial Segregation ◽  
Single Model ◽  
Large Cities ◽  
The Past ◽  
America Latina ◽  
Historical Moment ◽  
American Cities ◽  
The City ◽  
Political Decisions

En este artículo se analiza la evolución reciente de la segregación socioespacial y la de la conformación urbana en la ciudad de Salvador, a la luz del debate sobre las transformaciones de las metrópolis dentro del capital globalizado. Si bien se reconoce que todas las grandes ciudades terminan siendo alcanzadas por la globalización, en el texto se resalta, sin embargo, que los efectos de ese proceso no son uniformes ni convergen en un modelo único de ciudad. Es necesario considerar la conformación histórica de cada una de ellas, sus instituciones, actores y decisiones políticas locales dentro de una dinámica definida por la continuidad/transformación, donde lo que ya existía condiciona la irrupción de lo nuevo, que en muchos casos ya había comenzado a delinearse en el pasado. Mediante la demostración de la conformación de una metrópoli extremadamente desigual y segregada y la medida en que las transformaciones han agravado tales alteraciones al paso de los últimos años, esta revisión del caso de Salvador se propone exponer algunas reflexiones para entender mejor los efectos del proceso de globalización sobre las grandes ciudades de América Latina. AbstractThis article analyzes the recent evolution of the socio-spatial segregation and urban configuration of the city of Salvador, in light of the debate on the transformations of metropolises within globalized capital. Although it is a well-known fact that large cities end up being absorbed by globalization, the text stresses the fact that the effects of this process are not uniform nor do they converge in a single model of a city. It is essential to  consider the historical moment of each of them, their institutions, actors and local political decisions within a dynamic defined by continuity/transformation, in which what already existed conditions the emergence of what is new, which in many cases, had already begun to be shaped in the past. Through the demonstration of the configuration of an extremely unequal, segregated metropolis, and the extent to which the transformations have aggravated these alterations over the years, this review of the case of Salvador proposes offering some reflections to provide a better understanding of the effects of globalization on major Latin American cities.

scholarly journals Abundance, diversity and daily activity of terrestrial mammal and bird species in disturbed and undisturbed limestone habitats using camera trapping, Central Thailand

2021 ◽  
Vol 22 (8) ◽  
Author(s):  
MANANYA PLA-ARD ◽  
WIPAVEE HOONHEANG ◽  
BUNYATHIPORN KAEWDEE ◽  
TARAPON PANGANTA ◽  
KHWANRUTAI CHARASPET ◽  
...  
Keyword(s):  
Daily Activity ◽  
Bird Species ◽  
Wild Birds ◽  
Camera Trapping ◽  
Mountainous Area ◽  
Mining Activities ◽  
Natural Habitats ◽  
Terrestrial Mammal ◽  
Significant Difference ◽  
Central Thailand

Abstract: Pla-ard M, Hoonheang W, Kaewdee B, Panganta T, Charaspet K, Khoiesri N, Paansri P, Kanka P, Chanachai Y, Thongbanthum J, Bangthong P, Sukmasuang R. 2021. Abundance, diversity and daily activity of terrestrial mammal and bird species in disturbed and undisturbed limestone habitats using camera trapping, Central Thailand. Biodiversitas 22: 3620-3631.  This study on the abundance, diversity and daily activity of terrestrial mammal and bird species was conducted in the limestone mountainous area of Central Thailand, located on the east of Dong Phaya Yen-Khao Yai forest complex. Camera traps were placed in both habitats disturbed by limestone mining and undisturbed habitat areas. From the study, a total of 38 species of mammals and birds from 27 families in 13 orders were recorded, including 15 species of mammals from 6 orders, 12 families and 23 species of birds from 14 families in 7 orders. Fifteen species of mammals were recorded in the undisturbed area and 11 were recorded in the disturbed area, with the Malayan Pangolin, Small Indian Civet and Grey-bellied Squirrel found in the undisturbed area. However, the number of bird species in the limestone mining area was larger than in the undisturbed area. It was also found that there was no difference in the overall abundance and diversity of mammalian species between disturbed and undisturbed areas, which is not in accordance with the hypothesis. But in the case of wild birds, the relative abundance of wild birds was found to differ significantly between areas. A high number was found in the areas with mining activities, although there was no difference in the diversity index of the two areas. However, it was found that when the combined data was analyzed, there was a significant difference in the daily activity of both mammals and wild birds in both areas. Many rare wildlife species were recorded during this study, for example, the Malayan Pangolin, Serow, Northern Pig-tailed Macaque, Rufous Limestone-babbler, Golden Jackal, Leopard Cat, Large-toothed Ferret Badger, Small Asian Mongoose, Common Palm Civet, Small Indian Civet, Malayan Porcupine. The key measure proposed is to preserve some natural habitats within the areas with mining activities, as wildlife remains in the area.

scholarly journals Electromagnetic Pollution as a Possible Explanation for the Decline of House Sparrows in Interaction with Other Factors

Birds ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 329-337
Author(s):  
Alfonso Balmori
Keyword(s):  
Electromagnetic Radiation ◽  
Thermal Effects ◽  
House Sparrow ◽  
Bird Species ◽  
Passer Domesticus ◽  
The Other ◽  
Rapid Decline ◽  
House Sparrows ◽  
Electromagnetic Pollution ◽  
The Impact

In recent decades, there has been a decline of the House Sparrow (Passer domesticus), mainly in European cities, and several hypotheses have been proposed that attempt to determine the causes of this rapid decline. Previous studies indicated that house sparrows were significantly negatively associated with increasing electromagnetic radiation and sparrows disappeared from areas most polluted. In addition, there are many studies on the impact of radiation on other bird and non-bird species, as well as numerous laboratory studies that demonstrated detrimental effects at electric field strength levels that can be found in cities today. Electromagnetic radiation is the most plausible factor for multiple reasons, including that this is the only one that affects the other hypotheses proposed so far. It is a type of pollution that affects productivity, fertility, decreases insects (chicken feed), causes loss of habitat, decreases immunity and can promote disease. Additionally, the recent sparrow decline matches the deployment of mobile telephony networks. Further, there are known mechanisms of action for non-thermal effects of electromagnetic radiation that may affect sparrows causing their decline. Thus, electromagnetic radiation must be seriously considered as a factor for house sparrows’ decline, probably in synergy with the other factors previously proposed.

Estimation of the Demand for Hospital Care After a Possible High-Magnitude Earthquake in the City of Lima, Peru

2016 ◽  
Vol 32 (1) ◽  
pp. 106-111 ◽  
Author(s):  
Celso Bambarén ◽  
Angela Uyen ◽  
Miguel Rodriguez
Keyword(s):  
Hospital Care ◽  
Civil Defense ◽  
Public Hospitals ◽  
Time Of Arrival ◽  
Publication Type ◽  
Large Cities ◽  
High Magnitude ◽  
The Hours ◽  
Specialized Care ◽  
The City

AbstractIntroductionA model prepared by National Civil Defense (INDECI; Lima, Peru) estimated that an earthquake with an intensity of 8.0 Mw in front of the central coast of Peru would result in 51,019 deaths and 686,105 injured in districts of Metropolitan Lima and Callao. Using this information as a base, a study was designed to determine the characteristics of the demand for treatment in public hospitals and to estimate gaps in care in the hours immediately after such an event.MethodsA probabilistic model was designed that included the following variables: demand for hospital care; time of arrival at the hospitals; type of medical treatment; reason for hospital admission; and the need for specialized care like hemodialysis, blood transfusions, and surgical procedures. The values for these variables were obtained through a literature search of the databases of the MEDLINE medical bibliography, the Cochrane and SciELO libraries, and Google Scholar for information on earthquakes over the last 30 years of over magnitude 6.0 on the moment magnitude scale.ResultsIf a high-magnitude earthquake were to occur in Lima, it was estimated that between 23,328 and 178,387 injured would go to hospitals, of which between 4,666 and 121,303 would require inpatient care, while between 18,662 and 57,084 could be treated as outpatients. It was estimated that there would be an average of 8,768 cases of crush syndrome and 54,217 cases of other health problems. Enough blood would be required for 8,761 wounded in the first 24 hours. Furthermore, it was expected that there would be a deficit of hospital beds and operating theaters due to the high demand.ConclusionSudden and violent disasters, such as earthquakes, represent significant challenges for health systems and services. This study shows the deficit of preparation and capacity to respond to a possible high-magnitude earthquake. The study also showed there are not enough resources to face mega-disasters, especially in large cities.BambarénC, UyenA, RodriguezM. Estimation of the demand for hospital care after a possible high-magnitude earthquake in the City of Lima, Peru. Prehosp Disaster Med. 2017;32(1):106–111.

APPLICATION OF THE HOLT-WINTERS METHOD FOR FORECASTION HOSPITAL ADMISSIONS IN CITIES

2021 ◽  
Vol 4 (30) ◽  
pp. 22-32
Author(s):  
V. A. Klyapko ◽  
Keyword(s):  
Hospital Admissions ◽  
Analytical Data ◽  
Transportation Of Patients ◽  
Large Cities ◽  
Forecasting Methods ◽  
The Subject ◽  
Coronavirus Infection ◽  
Object Of Study ◽  
The City ◽  
Use Of Models

The current situation of coronavirus infection necessitates the use of models and prediction methods for decision- making in a rapidly changing situation in large cities and towns. Due to the dynamics of the processes, it is necessary to use different models and forecasting methods for the development of the situation. The city of St. Petersburg is the object of study and an analysis of hospitalisation of patients is performed. St. Petersburg was chosen as the subject of the research. The presented research was carried out within the framework of the work "Mathematical modelling of logistic systems in medicine" during the performance of diploma projects on the assignment of St. Petersburg executive authorities in 2021. In the course of the study analytical data are collected, the city districts where the situation with transportation of patients to medical organizations is likely to be difficult to predict are identified, and the methodology of forecasting hospitalization of patients by ambulance cars is considered. In solving the problem of predicting the situation, forecasting methods in the class of polynomial models are used and the effectiveness of using the Holt-Winters method is justified.

Abstract 9401: Medicare Readmission Penalties and Their Socioeconomic Correlates in Urban Hospitals

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Kim A Williams ◽  
Muhammad S Hamid ◽  
Arshad A Javed ◽  
Amy M Horton
Keyword(s):  
Inner City ◽  
Affordable Care Act ◽  
Safety Net ◽  
The United States ◽  
Unintended Consequence ◽  
Large Cities ◽  
Urban Hospitals ◽  
Low Educated ◽  
Socioeconomic Data ◽  
The City

In 2013, 2,200 U.S. hospitals forfeited more than $280 million in Medicare funds due to readmission penalties (RPs) for heart failure, pneumonia and myocardial infarction stipulated by the Affordable Care Act. This study evaluated the RPs in the hospitals of large cities, in comparison with other areas within and between states. Methods: Medicare RPs for 2013 (ranging 0 to 1%) were compared along with census and socioeconomic data for the largest city in each of 49 states in the United States, excluding Maryland due to its ongoing Medicare demonstration project. Improvements in RPs for 2014 in each urban area were tabulated. Results: There was a significant correlation between RPs and the size of the population of the cities (r = 0.37, p<0.01), with larger cities receiving higher penalties. For example, Detroit, MI’s 5 hospitals and Newark, NJ’s 3 hospitals have the highest average RPs (0.9%) than the hospitals in other largest cities. The RPs correlated moderately with a higher percentage of low-educated people in the city (r=0.53, p<0.001), and weakly but negatively with the percentage of high-educated people (r= -0.29, p<0.05) in the city. The rate of unemployment also correlated positively and significantly with the RPs (r=0.50, p<0.001). Conclusion: RPs reduce Medicare payments to inner-city hospitals, such as those in Detroit, MI and Newark, NJ, and disproportionately lower payments to large cities with poorer, underemployed and undereducated populations. This may have the unintended consequence of further reducing access care from safety-net hospitals.

Official Tourism Web Sites and City Marketing

2011 ◽  
pp. 152-183 ◽  
Author(s):  
Pablo Díaz-Luque
Keyword(s):  
Web Sites ◽  
Marketing Mix ◽  
Marketing Strategies ◽  
The Internet ◽  
City Marketing ◽  
Large Cities ◽  
The World ◽  
Tourism Destinations ◽  
The Right ◽  
The City

Large cities are one of the most popular tourism destinations throughout the world. Business and leisure tourists visit these areas every year and before they travel there, they look for useful information on the Internet. This chapter analyses the tourism Web sites developed by Convention and Visitor Bureaus. These Web sites represent the official image of the city on the Internet and trough them tourism organizations can organize the marketing and mix strategy. The chapter studies the concept of a city as a tourism destination, the organizations that manage tourist activities, and the right marketing strategies to be developed on these official Web sites. The strategy begins with the market research to select the right marketing segments and it continues with the right actions from a marketing mix perspective. It means different options in terms of product-destination exhibition, price policies, commercialization, and communication actions.

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