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001-es BibID:	BIBFORM121036
035-os BibID:	(Scopus)85194420169 (WoS)001231485500001
Első szerző:	Huzsvai László (talajerőgazdálkodási szakmérnök, agrármérnök)
Cím:	The Future Probability of Winter Wheat and Maize Yield Failure in Hungary Based on Long-Term Temporal Patterns / László Huzsvai, Csaba Juhász, Loujaine Seddik, Györgyi Kovács, József Zsembeli
Dátum:	2024
ISSN:	2071-1050
Megjegyzések:	The level of yield variation of primary crops has a considerable effect on the vulnerability of agriculture. The main factor that makes the agriculture of Hungary so vulnerable is climate change, and technological development cannot compensate for its unfavourable effects. We examined the yield failures of the two major field crops grown in Hungary that occurred during the last 100 years. The goals of our study were to determine how often yield losses at 15% and 30% occur, what their probability is and whether the probability has changed in recent decades. The Wald?Wolfowitz runs test was used to determine the randomness of yield failures. A series of yield failures for maize and winter wheat were found to be random. Based on the data for 1985?2023, failure by 15% and 30% can be expected approximately every 8th and 19th year for winter wheat and 3rd and 5th year for maize. Winter wheat yield failure at 15% shows a decreasing trend in occurrence, while at 30% it increases. On the other hand, the frequency of maize yield failure increased at both levels. The consideration of historical yield data can help to determine the extent of crop loss to be expected in the long term to maintain sustainable winter wheat and maize production in our changing climate.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk yield depression maize winter wheat sustainable crop production Wald-Wolfowitz runs test
Megjelenés:	Sustainability. - 16 : 10 (2024), p. 1-17. -
További szerzők:	Juhász Csaba (1962-) (környezetgazdálkodási agrármérnök) Seddik, Loujaine Kovács Györgyi (1980-) (környezetgazdálkodási agrármérnök) Zsembeli József (1967-) (agrármérnök)
Pályázati támogatás:	TKP2021-NKTA-32 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM115648
035-os BibID:	(WoS)001100511900001
Első szerző:	Kovács Tünde Zita (közgazdász)
Cím:	Sustainable public transportation in a Volatile, Uncertain, Complex, and Ambiguous (VUCA) age / Tünde Zita Kovács, András Nábrádi, Szabolcs Tóth, László Huzsvai, Adrián Nagy, Beáta Bittner
Dátum:	2023
ISSN:	2071-1050
Megjegyzések:	A well-functioning public transport system is one of the foundations of the Smart city concept and sustainable cities. The COVID period offers an excellent opportunity to examine the impact of different factors, because throughout this period society was faced with both health and governmental impacts that had different effects. Public transport use in the EU member states from the turn of the millennium until the beginning of the pandemic ranged from 17-18% to 27% of total journeys. The COVID-19 virus caused a 5-7% decrease in public transport use. The present study analyses the relationship between these effects and the number of paying passengers on public transport in Debrecen. Four hypotheses were put forward, i.e., that (1) the evolution of travel tickets, (2) general passes, (3) discounted passes and (4) replacement tickets were influenced by the evolution of the active COVID-19 case rate. The data were collected from the Debrecen Transport Company (DKV) for the period 1 January 2020-12 December 2021, and the Worldometers.info database. Statistical analyses were performed using an autoregressive and moving average (ARMA) model. We found that COVID`s active case numbers did not affect sales, but some of the government measures did have an effect. The results of this research can be used to inform future decisions to maintain and improve urban transport.
Tárgyszavak:	Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk public transportation ARMA model government measures COVID-19 effects transportation analysis
Megjelenés:	Sustainability. - 15 : 21 (2023), p. 1-15. -
További szerzők:	Nábrádi András (1956-) (közgazdász, agrárökonómus) Tóth Szabolcs (1973-) (közgazdász) Huzsvai László (1961-) (talajerőgazdálkodási szakmérnök, agrármérnök) Nagy Adrián Szilárd (1975-) (gazdasági agrármérnök) Bittner Beáta (1980-) (közgazdász)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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Saját polcon: