Issue 27(1) – 2023

Rzeszów 2023


Krzysztof KASPRZAK
Forest of remembrance – ecological funeral minimalism

DOI: 10.15584/pjsd.2023.27.1.1

The article presents a reflection on ecological burials of the deceased possible in Poland. Funeral ceremonies are an expression of cultural tradition and variously defined personal attitudes, including religious faith, as well as legal and administrative orders. Also in this respect, new solutions are socially expected, which should be legally allowed, especially regarding the possibility of scattering the ashes of the deceased. Burials in biodegradable urns are already practised as well as scattering of the ashes of the dead, e.g. in the Forests of Remembrance in cemeteries-parks, which are by no means disrespectful to the dead. It is a deepening, a complete and last dedication to the biosphere of which we are a part and after death we will continue to reside therein.

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Ecologistics but which?

DOI: 10.15584/pjsd.2023.27.1.2

The Anthropocene is developing exponentially as a function of the growing human population and its civilizational development in the 21st century. In addition to numerous amenities, it carries a number of socio-economic and environmental risks. The aim of the study is to emphasize the importance of anchoring people’s knowledge and culture of human activity in problems of threats to the natural environment. The publication also describes some components of the implementation of the subject “Ecologistics” in the field of “Logistics in the agricultural and food sector” at the University of Rzeszów. On the basis of own experience, discussions with students and the results of the survey, an idea of the content of this subject through the eyes of students was compiled.

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Microalgae most commonly used in the agricultural and food industry

DOI: 10.15584/pjsd.2023.27.1.3

Spirulina and chlorella are among the microalgae most commonly cultivated in aquaculture as well as used in the agriculture and food industry. Both algae are characterized by a high protein content (up to 60% chlorella and up to 70% spirulina), and also contain fatty acids, vitamins, minerals and dyes. For this reason, and in connection with the current trend for healthy eating, products containing spirulina, chlorella or their extracts have become increasingly popular in recent years. These microalgae are commonly used as feed additives for various species of farm animals and in fish feeds, while their extracts are used e.g. as fertilizers in organic farming and biostimulators.

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Selected aspects related to macroalgae aquacultures on the example of NEOPYROPIA (PORPHYRA)

DOI: 10.15584/pjsd.2023.27.1.4

For thousands of years algae have been used for food and agricultural purposes in Asian countries. In recent years they have become increasingly popular in aquaculture, especially in the integrated multitrophic aquaculture (IMTA), in which they process waste produced by fish, rich in, among others, into ammonia, phosphates and carbon, while producing new biomass. Products containing algae are characterized by a high content of protein, vitamins and minerals and are more often chosen by consumers, e.g. due to the trend towards healthy eating. Commercially grown species of the genus Neopyropia (syn. Porphyra, nori) are a valuable source of nutrients and can contribute to meeting the growing nutritional needs in the world. The article summarizes the latest literature on the use of Neopyropia macroalgae in aquaculture and food industry. Attention was also paid to the potential dangers resulting from contamination of algae products, mainly with heavy metals.

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Agnieszka PODOLAK, Karina KASPRZYK, Kinga SEMENOWICZ, Małgorzata MAŁEK
Education in the field of basics of statistics in selected fields of studies at the University of Rzeszow – SWOT analysis

DOI: 10.15584/pjsd.2023.27.1.5

The article makes an attempt at assessing the quality of education in the subject “Basics of statistics” and inidicates proposals for actions that may improve its effectiveness using the SWOT analysis. The results were obtained thanks to cooperation with first-cycle students of Renewable Energy Sources and Waste Management Logistics in the Agri-Food Sector, Environmental Protection and Agriculture at the College of Natural Sciences of the University of Rzeszów. The answers obtained indicate many positive aspects of the current education process, while highlighting weaknesses and signalling threats that may occur in the future. The findings received may therefore be helpful in increasing the effectiveness of teaching other subjects as well.

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Jadwiga TOPCZEWSKA, Wanda KRUPA, Małgorzata ORMIAN, Jadwiga LECHOWSKA
Możliwość redukcji emisji gazów cieplarnianych z ferm bydła mlecznego

DOI: 10.15584/pjsd.2023.27.1.6

Dairy cattle have a significant share in greenhouse gas (GHG) emissions. Therefore, due to the growing demand for milk and milk products, it is worth looking for solutions to effectively reduce the environmental impact of dairy farming. The article reviews the literature on the reduction of greenhouse gas emissions from dairy farms through dietary interventions. Significant reduction in greenhouse gas emissions from dairy farms can be achieved by optimizing dairy cattle and the use of various feed additives. Silvo-pastoralism systems are also important for their ecosystem services, including climate change mitigation.

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Scale of livestock transport in the European Union

DOI: 10.15584/pjsd.2023.27.1.7

Agricultural policy and the profitability of production are conducive to the movement of animals not only for slaughter, but also for pig fattening or cattle fattening. The largest producers transport animals both in intra-EU trade and to third countries. Transporting animals, especially over long distances, involves significant environmental costs. In contrast, the transport of carcasses or meat is more beneficial in terms of its impact on the environment and climate change. It appears that changes in this area may be accelerated by pressure from consumer choices

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GMO from the perspective of judaism

DOI: 10.15584/pjsd.2023.27.1.8

The last decades have been a time of spectacular development of modern technologies, including those in the food production sector. As a result of the transfer of genes from one organism to another, it has become possible to create ever new varieties of genetically modified plants and animals. These achievements of modern science do not go unnoticed in religious circles, especially in the religious tradition of Judaism with its specific prohibitions on the consumption of certain products of plant and animal origin and the norms regulating the cultivation or preparation of food. Jewish law distinguishes the species of animals that Jews can eat, i.e. kosher ones, from those that they cannot eat, i.e. non-kosher (all plants are considered kosher). This environment also raises issues related to the cultivation and consumption of genetically modified plants and animals, including those with genetic material artificially transferred from other plants or animals considered in that tradition to be non-kosher. Although there is no consensus in Judaism, its mainstream tends to accept genetic technologies for altering organisms and the consumption of modified foods. Jewish decision-makers in the field of law and ethics base their mild stance on the general principle that anything not explicitly forbidden in the Bible and the Talmud is accepted as permitted.

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