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Wyświetlanie 1-15 z 53
Tytuł:
Can payments for ecosystem services contribute to sustainable development in the Brazilian Amazon?
Autorzy:
Seehusen, S.E.
Powiązania:
https://bibliotekanauki.pl/articles/38733.pdf
Data publikacji:
2009
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
forest ecosystem service
sustainable development
Brazil
Amazon River
ecological economics
Opis:
The Brazilian Amazon supplies the world with several forests ecosystem services, many of which are essential to sustain human life on earth. Nevertheless, the Amazon is threatened by deforestation and degradation implying in reductions on the provision of these. According to economic theory, as ecosystem services are positive externalities and public goods, agents do not take into consideration the costs and benefits of their consumption and production of ecosystem services into their economic decisions. To address this problem payment for ecosystem services – PES – emerged, aiming to provide a source of income to the poor people living in forest areas, stimulating them not to deforest, and making agents who are indebted with the nature pay for their overconsumption of ecosystem services. There is still controversy about possible impacts of the instrument. This article accesses the potentials of PES to contribute to sustainable development in the Brazilian Amazon using the three goals related to sustainable development proposed by the ecological economics theory: efficient allocation, fair distribution, and sustainable scale. The study shows that PES as a pure market approach is unlikely to solve neither the scale nor the distribution problems. Therefore, for PES to achieve sustainable development, markets for ecosystem services should first be constrained by a maximum sustainable scale. Then, measures should ensure fair distribution in second place. Only after these questions have been tackled, it is desirable that agents interact in the ecosystem services markets to lead to an efficient allocation of resources.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2009, 51, 1
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Minutes of meetings, International Commission on Trichinellosis
Sprawozdania z posiedzeń, Międzynarodowa komisja Włośnicowa
Otchety zasedanijj Mezhdunarodnojj Komissii po Trikhinellezu
Autorzy:
Gould, S.E.
Powiązania:
https://bibliotekanauki.pl/articles/841068.pdf
Data publikacji:
1962
Wydawca:
Polskie Towarzystwo Parazytologiczne
Źródło:
Annals of Parasitology; 1962, 08, 1
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The market-oriented production system as a part of agricultural innovation
System produkcji zorientowanej na rynek jako element innowacji w rolnictwie
Autorzy:
Kesmarki-Gally, S.E.
Powiązania:
https://bibliotekanauki.pl/articles/869499.pdf
Data publikacji:
2014
Wydawca:
The Polish Association of Agricultural and Agribusiness Economists
Tematy:
market-oriented production system
agricultural innovation
agriculture
innovation
farmer
information
marketplace
Opis:
The paper aims to analyse the innovation process in the economy with the focus on agriculture and food production in Hungary. There was presented a model of production with the market-focused technology development system. The authors argue that the objectives of the system are as follows: inducing competition between input suppliers, increasing supply, loosening rigid trading structures, fostering the optimisation of mechanisation and ensuring the possibility of appropriate technology development. Harmonizing the subsidizing systems, optimizing their different incentive factors will become more precise and professionally more established and all these can contribute to optimizing the growth of innovations. In my work, I would like to develop the concept of a market place that is a marketplace and an innovation space at the same time, which can improve the conditions for the purchase of European agriculture, given the chance to expand production by improving profitability.
Celem artykułu była analiza procesu innowacji w gospodarce z naciskiem na rolnictwo i produkcję żywności na Węgrzech. Zaprezentowano model produkcji z systemem technologii zorientowanych na rozwój rynku. Zdaniem autora system ten ma na celu m.in.: wywołanie konkurencji między dostawcami surowców, zwiększenie podaży, rozluźnienie sztywnych struktur handlowych, wspieranie optymalizacji mechanizacji oraz zapewnienie możliwości odpowiedniego rozwoju technologii. Harmonizacja mechanizmów wsparcia, optymalizując ich różne czynniki motywacyjne, powinna stać się bardziej precyzyjna, co w efekcie stworzy bardziej profesjonalnie warunki do rozwoju innowacji.
Źródło:
Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu; 2014, 16, 6
1508-3535
2450-7296
Pojawia się w:
Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evolution of costs of agricultural machine operation and its impact on organic farms in Hungary
Rozwój kosztów maszyn rolnych i jego wpływ na organiczne gospodarstwa rolne na Węgrzech
Autorzy:
Kesmarki-Gally, S.E.
Powiązania:
https://bibliotekanauki.pl/articles/869654.pdf
Data publikacji:
2016
Wydawca:
The Polish Association of Agricultural and Agribusiness Economists
Tematy:
cost
agricultural machine
organic farm
machine
Hungary
Opis:
One of the most important tasks of the National Agricultural Research and Innovation Centre Institute of Agricultural Engineering (NARIC MGI) is to annually provide information on the evolution of agricultural machine operation costs in Hungary. Therefore, the Institute – in addition to other activities – monitors and updates changes concerning agricultural machinery through the use of operational data and values of basic farms on a yearly basis. The work results in the development and publication of a booklet which best summarizes the actual cost of agricultural work performed by different machines. It contains the average performance and cost of agricultural machines and equipment calculated by expected prices, wages, and other costs. In this article, our aim is to present the main results of the observation and summarize the main conclusions of traditional and organic farms in Hungary.
Jednym z najważniejszych zadań Centrum Badań Narodowej Gospodarki Rolnej Instytutu Inżynierii Rolnej (NARIC MGI) jest coroczne dostarczenie informacji na temat kosztów pracy maszyn przeznaczonych do pracy w węgierskim rolnictwie. Instytut monitoruje i uaktualnia co roku te zmiany za pomocą danych uzyskanych z gospodarstw. Następnie publikuje broszurę podsumowującą rzeczywiste koszty pracy wykonywanej przez różne maszyny rolnicze. Na podstawie oczekiwanych cen, płac oraz innych kosztów oszacowuje się także średnią wydajność maszyn i ich wyposażenia.
Źródło:
Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu; 2016, 18, 3
1508-3535
2450-7296
Pojawia się w:
Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reflux esophagitis and Helicobacter pylori: Is there an association in children?
Autorzy:
Zagorski, SE.
Nazarenko, ON.
Powiązania:
https://bibliotekanauki.pl/articles/1914060.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
reflux esophagitis
helicobacter pylori infection
children
Opis:
Purpose: The role of Helicobacter pylori (Hp) in the development of gastroesophageal reflux disease (GERD) remains disputable. This study was planned to determine clinical-epidemic correlations between reflux esophagitis (RE) and Hp in older children. Materials and methods: 308 children with RE and 418 patients with chronic gastritis (CG) without RE between the ages of 12 and 18 were examined. Hp was diagnosed by histological (Giemsa and hematoxylin-eosin stain, with evaluation of dissemination grade) and rapid urease test. Subjective symptoms (heartburn, abdominal pain, other dyspeptic complaints) were analyzed by questionnaire. Results: Hp infection was found in 44.5% of children with RE (no difference in patients without RE), and it does not increase the erosive esophageal defects risk. Clinical symptoms are not connected to this infection in examined patients. The frequency of Hp infection decreases with the disease duration increase. Conclusion: The development of RE is not connected with Hp, but the disease course has certain peculiarities in the conditions of Hp infection.
Źródło:
Progress in Health Sciences; 2014, 4, 1; 41-46
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new short-bodied salamander from the Upper Jurassic-Lower Cretaceous of China
Autorzy:
Wang, Y
Evans, S.E.
Powiązania:
https://bibliotekanauki.pl/articles/20232.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Lower Cretaceous
Cretaceous
China
Upper Jurassic
Pangerpeton sinensis
deposit
Jurassic
salamander
paleontology
Opis:
Abundant well−preserved salamander fossils have recently been recovered from localities across northeastern China. Pangerpeton sinensis gen. et sp. nov. is represented by a nearly complete skeletal impression of a postmetamorphosed salamander from the Late Jurassic/Early Cretaceous locality of Wubaiding, Liaoning Province. It is characterised by a short wide skull and only 14 presacral vertebrae. Associated soft tissue impressions suggest a warty skin and a broad body outline. Phylogenetic analysis indicates a basal position within Caudata, either just within or just outside crown−group Urodela.
Źródło:
Acta Palaeontologica Polonica; 2006, 51, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sintering Behavior and Mechanical Property of Cu-Sn Alloy with Ag Addition Produced by Pulsed Electric Current Sintering
Autorzy:
Lee, Se Hwan
Ahn, Byungmin
Powiązania:
https://bibliotekanauki.pl/articles/2174574.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
powder metallurgy
Cu-Sn alloy
pulsed electric current sintering
grinding tool
Opis:
This work mainly focuses on the sintering behavior of the Cu-Sn alloy with the addition of Ag up to 4 wt% after pulsed electric current sintering (PECS) process for ultra-fast sintering. The microstructural evolution was characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), and density measurements. The mechanical properties were evaluated via measurements of transverse rupture strength (TRS) and Rockwell hardness. The mechanism during the sintering process has been discussed thoroughly, and the effect on porosity with the addition of the Ag is also correlated. The results showed that the growth of porosity progressed with the amount of Ag up to 2 wt%, and further addition of Ag leads reduction in porosity. The effect on mechanical properties were improved slowly as the amount of Ag increased.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 4; 1475--1479
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The scapulocoracoid of an Early Triassic stem-frog from Poland
Autorzy:
Borsuk-Bialynicka, M
Evans, S.E.
Powiązania:
https://bibliotekanauki.pl/articles/20856.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
scapulocoracoid
Triassic
Polska
pectoral girdle
Anura
Triadobatrachus
stem-frog
Salientia
Early Triassic
paleontology
Czatkowice
Opis:
The scapulocoracoid of Czatkobatrachus polonicus Evans and Borsuk−Białynicka, 1998, a stem−frog from the Early Triassic karst locality of Czatkowice (Southern Poland), is described. The overall type of scapulocoracoid is plesiomorphic, but the subcircular shape and laterally oriented glenoid is considered synapomorphic of Salientia. The supraglenoid foramen is considered homologous to the scapular cleft of the Anura. In Czatkobatrachus, the supraglenoid foramen occupies an intermediate position between that of the early tetrapod foramen and the scapular cleft of Anura. The cleft scapula is probably synapomorphic for the Anura. In early salientian phylogeny, the shift in position of the supraglenoid foramen may have been associated with an anterior rotation of the forelimb. This change in position of the forelimb may reflect an evolutionary shift from a mainly locomotory function to static functions (support, balance, eventually shock−absorption). Laterally extended limbs may have been more effective than posterolateral ones in absorbing landing stresses, until the specialised shock−absorption pectoral mechanism of crown−group Anura had developed. The glenoid shape and position, and the slender scapular blade, of Czatkobatrachus, in combination with the well−ossified joint surfaces on the humerus and ulna, all support a primarily terrestrial rather than aquatic mode of life. The new Polish material also permits clarification of the pectoral anatomy of the contemporaneous Madagascan genus Triadobatrachus.
Źródło:
Acta Palaeontologica Polonica; 2002, 47, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A two-step fall detection algorithm combining threshold-based method and convolutional neural network
Autorzy:
Xu, Tao
Se, Haifeng
Liu, Jiahui
Powiązania:
https://bibliotekanauki.pl/articles/1848958.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wearable
fall detection
MPU6050
threshold-based method
convolutional neural network
Opis:
Falls are one of the leading causes of disability and premature death among the elderly. Technical solutions designed to automatically detect a fall event may mitigate fall-related health consequences by immediate medical assistance. This paper presents a wearable device called TTXFD based on MPU6050 which can collect triaxial acceleration signals. We have also designed a two-step fall detection algorithm that fuses threshold-based method (TBM) and machine learning (ML). The TTXFD exploits the TBM stage with low computational complexity to pick out and transmit suspected fall data (triaxial acceleration data). The ML stage of the two-step algorithm is implemented on a server which encodes the data into an image and exploits a fall detection algorithm based on convolutional neural network to identify a fall on the basis of the image. The experimental results show that the proposed algorithm achieves high sensitivity (97.83%), specificity (96.64%) and accuracy (97.02%) on the open dataset. In conclusion, this paper proposes a reliable solution for fall detection, which combines the advantages of threshold-based method and machine learning technology to reduce power consumption and improve classification ability.
Źródło:
Metrology and Measurement Systems; 2021, 28, 1; 23-40
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Iceberg Melting and Climate Change in NW Atlantic Waters
Autorzy:
Perez-Gruszkiewicz, S.E.
Peterson, W.
Powiązania:
https://bibliotekanauki.pl/articles/117122.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Arctic shipping
climate change
Iceberg
Atlantic Ocean
NW Atlantic
iceberg melting
Labrador
International Ice Patrol (IIP)
Opis:
Climate change is predicted to cause increases in sea surface temperature (SST), as well as decreases in sea-ice cover, wind and current velocities. These changes will have a marked effect on iceberg melting in the shipping lanes off Newfoundland and Labrador, Canada. Icebergs that today can cross from northern Labrador to Newfoundland without melting will in the future have to be much larger to survive the transit. For example, icebergs at N Labrador in December of 2016 that are smaller than 156 m will melt before reaching 48N, but in year 2100 the length increases to 228 m. In addition, if future iceberg size distributions off Labrador are the same as today, icebergs will experience roughly 50% reductions in numbers in the NW Atlantic shipping lanes by year 2100. The increased melting rates are due to, in order of importance, increased sea-surface temperatures (responsible for 66% of the increase in the minimum transit size), decreasing current velocities (31%), and decreasing sea-ice cover (3%). Decreasing sea-ice tends to increase wave heights as well as accelerate the effects of wave erosion; however, for the areas studied the wave height is predicted to decrease moderately in year 2100, by a maximum of about 10% in December.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 459-467
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A basal archosauriform from the Early Triassic of Poland
Autorzy:
Borsuk-Bialynicka, M
Evans, S.E.
Powiązania:
https://bibliotekanauki.pl/articles/22940.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Osmolskina czatkowiensis
Polska
bone
Middle Triassic
Early Triassic
Czatkowice
basal archosauriform
geographic distribution
Early Olenekian
Archosauriformes
deposit
distribution
paleontology
Opis:
Basal Archosauriformes had a wide geographic distribution through the Lower to Middle Triassic. Osmolskina czatkowiensis gen. et sp. nov. from Early Olenekian karst deposits at Czatkowice, west of Cracow, provides the first record from Poland. The reconstructed skull and attributed postcranial elements show a morphology closely resembling that of the Early Anisian African genus Euparkeria Broom, 1913, while differing at generic level. Both genera display the same mosaic of plesiomorphic and apomorphic character states, but share no unique apomorphic character state. They might thus be combined in the family Euparkeriidae Huene, 1920, but could also constitute two plesions of the same grade lying just below the Archosauria + Proterochampsidae node. Currently, Euparkeriidae remains monotypic because no other genus can be assigned to it with confidence. Until this problem is resolved, the term “euparkeriid” essentially denotes a grade of Lower to Middle Triassic non−archosaurian archosauriforms that are more derived than proterosuchid grade taxa, but lack the specializations of either erythrosuchids or proterochampsids. They were probably Pangaean in their distribution.
Źródło:
Acta Palaeontologica Polonica; 2003, 48, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 53

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