http://hdl.handle.net/20.500.12603/46 Přírodovědecká fakulta Thu, 09 Apr 2026 13:29:48 GMT 2026-04-09T13:29:48Z http://hdl.handle.net/20.500.12603/2513 Řešení úloh ve čtvercové a trojúhelníkové mříži pohledem GeoGebra Classroom Cachová, Jana; Vízek, Lukáš Příspěvek přináší pohled na šetření se dvěma odlišnými skupinami respondentů, se studentkami učitelství pro 1. stupeň základní školy a s žáky 5. ročníku základní školy. Oběma skupinám byla předložena stejná sada úloh na geodeskách zaměřená na tvorbu kolmic. Byla zadána a vyhodnocena pomocí aplikace GeoGebra Classroom, která představuje všechna řešení z pohledu jednotlivých úloh a z pohledu jednotlivých respondentů. Ukazujeme na funkcionalitu programu GeoGebra a tudíž na další možnost užití počítačů v matematickém vzdělávání. Fri, 01 Jan 2021 00:00:00 GMT http://hdl.handle.net/20.500.12603/2513 2021-01-01T00:00:00Z http://hdl.handle.net/20.500.12603/2500 On the characteristic polynomial of (k, p) -Fibonacci sequence Trojovský, Pavel Recently, Bednarz introduced a new two-parameter generalization of the Fibonacci sequence, which is called the (k, p) -Fibonacci sequence and denoted by (Fk,p(n))n≥0. In this paper, we study the geometry of roots of the characteristic polynomial of this sequence. Fri, 01 Jan 2021 00:00:00 GMT http://hdl.handle.net/20.500.12603/2500 2021-01-01T00:00:00Z http://hdl.handle.net/20.500.12603/2493 Mycorrhizal roles in plant growth, gas exchange, root morphology, and nutrient uptake of walnuts Huang, Guang-Ming; Zou, Ying-Ning; Wu, Qiang-Sheng; Xu, Yong-Jie; Kuča, Kamil Walnut, an important oil fruit tree, is dependent on arbuscular mycorrhizas, while mycorrhizal roles and efficient mycorrhizal fungus in walnuts are unknown. This study was conducted to evaluate the effect of five arbuscu-lar mycorrhizal fungi (AMF) species, including Acaulospora scrobiculata, Diversispora spurca, Glomus etunicatum, G. mosseae, and G. versiforme on plant growth, leaf gas exchange, root morphology, and root nutrient contents of walnut (Juglans regia L. Liaohe 1) seedlings. Three months of AMF inoculations later, root mycorrhizal colonisation achieved 47.0% to 76.4%. AMF treatments increased plant growth performance, dependent on AMF species. AMF-inoculatedplants with D. spurca, G. etunicatum, and G. mosseae showed higher root length, projected area, surface area, and volume than non-AMF plants. Except for G. versiforme, the other four AMF treatments almost significantly increased leaf photosynthesis rate, transpiration rate, and stomatal conductivity, while reduced intercellular CO2 concentrations and leaf temperature. AMF affected root nutrient contents, dependent on AMF and mineral nutrient species. These results, thereby, concluded that AMF had a positive role in walnuts, dependent on AMF species, and D. spurca was the best mycorrhizal fungus for walnut. Such results provide the potential possibility of a developing consortium of AMF in walnut cultivation management. Wed, 01 Jan 2020 00:00:00 GMT http://hdl.handle.net/20.500.12603/2493 2020-01-01T00:00:00Z http://hdl.handle.net/20.500.12603/2490 Valorization of flowers and their role in circular bioeconomy and sustainable development goals Kumar, Harsh; Guleria, Shivani; Dhalaria, Rajni; Kimta, Neetika; Sethi, Nidhi; Dhanjal, Daljeet Singh; Kaur, Talwinder; Kumar, Manish; Harun, Hasnita Binti Che; Mahajan, Ashima; Malik, Tabarak; Nepovimová, Eugenie Green biomass has always played a crucial role in fulfilling sustainable development goals (SDGs), be it in real or waste form. Simultaneously, these biomasses have also justified the circular bioeconomy concept by prioritizing the restoration and safeguarding of ecosystems, thus focusing on exploiting renewable biological resources along with the waste streams associated with them for producing value-added products. Edible or non-edible, flowers found in nature are best suited for biomass in this category. Primarily, the flowers have been considered as the source of fragrance, hence explored by the beauty and cosmetic industry only. This review highlights the harnessing of flowers in producing bio-based nanomaterials, along with the functional food's enrichment, therefore emphasizing their nutritional and physiological advantages. The present analysis thoroughly corresponds with SDG2 (zero hunger), SDG3 (Good health and well-being), SDG6 (clean water and sanitation), SDG8 (decent work and economic growth), and 9 (industry innovation and infrastructure), as well as the circular bioeconomy idea. Besides this, the review also examines the safety considerations related to its utilization. Wed, 01 Jan 2025 00:00:00 GMT http://hdl.handle.net/20.500.12603/2490 2025-01-01T00:00:00Z