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1

Diversity of Aphids Associated with Field and under Greenhouse Crops (Wheat, Barley and Chili Pepper) across the Dryland Climate in Algeria

Bakroune Nourelhouda, Hachemi Ali, Ouamane Abdelmoneim Tarek, Boultif Meriem, Rouahna Houria

Journal of Ecological Engineering

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2023

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Vol. 24, nr 4

99--109

EN

The aim of this study was to investigate the diversity of aphids associated with the field and under greenhouse crops in an arid climate in southeastern Algeria (Biskra province). Using yellow basins for the insects sampling, a total of 6683 specimens of aphids were collected and identified into 33 species, five (05) subfamilies: Aphidinae, Pemphiginae, Chaitophorinae, Pterocommatinae, and Greenideinae; and six tribes: Aphidini, Macrosiphin, Pemphigini, Panaphidini, Chaitophorini and Greenideini, and 22 genera. The Macrosiphini tribe is quantitatively most dominant with 20 species (61%) of the inventoried aphid population, followed by the aphidini which groups together 9 species representing 27% of the aphids inventoried. The other tribes are less represented, including one species for each tribe (12% in total). Aphis gossypii was the predominant species 29.67% of the inventoried species, followed by Rhopalosiphum maidis (15.22%) and Rhopalosiphum padi (15.07%). In terms of total wealth (S), there was a strong and positive correlation between the diversity of aphids and crops (R2 = 0.73), and also a significant relationship (df = 15, Pr > F = 0.024). Shannon’s index spatial interpolation indicates a higher diversity on agricultural lands in the study area. Shannon’s diversity and evenness index values were greater in pepper under greenhouse in Dhibia station (H′ = 2.01, E = 0.84) compared to barley and wheat, in El Haouch and Saada, respectively (H′ = 1.18, E = 0.30 and H’ = 1.45, E = 0.21).

2

The impact of diversity on job performance: evidence from private universities in Egypt

Said Dina, Youssef Dina, El-Bayaa Nourhan, Alzoubi Yehia Ibrahim, Zaim Halil

Acta Innovations

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2023

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no. 49

17--30

EN

Employees from diverse backgrounds have been claimed to perform better; nevertheless, this link has been studied sparingly in the Egyptian setting. This paper addresses this gap by experimentally analyzing the link between employee performance and gender, educational background, and ethnic background. To investigate this link, a usable model was created, and data was collected from 269 academic staff members at private Egyptian institutions. PLS analysis was used, and the result revealed that educational and ethnic backgrounds have a positive effect on employees’ job performance whereas, the impact of gender background on employee’s job performance was found to be insignificant. Furthermore, the research findings disclose that the education and ethnic background of the employees mediates the relationship between employees’ job performance and gender diversity. Future research is yet to validate these results.

3

Is employee diversity relevant? Assessment of the impact of diversity management on soft and hard aspects of management

Olejniczak-Szuster Katarzyna

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2022

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z. 159

327--336

EN

Purpose: The dynamics of changes taking place in the environment, globalization, increasing competition entail many changes concerning the management and operation of the organization. One of the conditions ensuring the proper functioning of the enterprise is the implication of diversity management, the objective of which is to promote equality and diversity in the workplace. This approach ought to be treated as a developed concept of talent management in the organization, with particular emphasis on equal opportunities, counteracting discrimination, employee integration and the moral and ethical dimension of management. This manner of conducting a business is based on universal values that help enterprises to achieve their business objectives. Design/methodology/approach: The research task was carried out on the basis of the subject literature and the results of the survey conducted in the fourth quarter of 2020 among 343 diversified employees. The empirical analysis workshop allowed for the assessment of the impact of actions taken for the benefit of diversity management, as well as the possession of the diversity potential on soft and hard aspects of management. Findings: The conducted analyses indicated that diversity management has a significant impact on holistic business management. This is confirmed by both positive and negative relationships between the characteristics analyzed. Originality/value: Little research does relate to the assessment of operations in terms of diversity management or evaluation of the diversity potential and their impact on the holistic (including soft and hard aspects) management of the enterprise. This creates a re-search gap and implies the possibility of acquiring real knowledge of the impact of diversity management on the functioning (soft and hard aspects) of a modern enterprise.

4

Top management team diversity and firm performance in digital era

Velinov Emil, Konovalova Natalia

Polish Journal of Management Studies

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2022

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Vol. 26, No. 2

396--410

EN

The paper sheds light on impactful diversity dimensions of upper echelons across German companies and their impact on the appointment of Chief Digitalization/Information Officer during the turbulent years of internet of things and digitalization in the second decade of the twenty-first century. The study consists of a literature review on diversity across senior management of German firms in a digital era characterized by global business technological digital disruption. The paper discusses how the emerging phenomena of diversity across top management affect firm performance during the period of incremental innovation and turbulent digital trasnformation of multinational firms. The novelty of the study is nested in the fact that it provides evidence from top management teams' diversity from the advanced markets, such as Germany, where digitalization is one of the priorities of the German government but also of the German business in order to drive long-term firms’ performance and firms’ sustainability. The motivation behind conducting the research on top management teams' diversity across top German companies in the digital era is the fact that the crucial importance of senior management skills, competencies and knowledge are key factors for firm performance and prosperity. Moreover, in Germany, many of the most successful firms have appointed executive positions in their top management in order to manage the rapid shift towards more digitalized business and higher firm performance in a volatile global business environment. Study results show that top management team diversity positively affects the appointment of Chief Digitalization/Information Officer. Also, the paper results show that firms with incumbent Chief Digital Officers in their top management team tend to be more intact with the digital era than firms that have not appointed any Chief Digitalization Officer.

PL

Artykuł rzuca światło na istotne wymiary różnorodności zespołu najwyższego kierownictwa w niemieckich firmach oraz ich wpływ na powoływanie dyrektora ds. digitalizacji / informacji w burzliwych latach Internetu rzeczy i cyfryzacji w drugiej dekadzie XXI wieku. Badanie składa się z przeglądu literatury w tematyce różnorodności wśród kadry kierowniczej wyższego szczebla niemieckich firm ery cyfrowej, charakteryzującej się globalnymi zakłóceniami technologicznymi i cyfrowymi. W artykule omówiono, w jaki sposób pojawiające się zjawiska różnorodności w obrębie najwyższego kierownictwa wpływają na wyniki firm w okresie innowacji przyrostowych i burzliwej transformacji cyfrowej firm międzynarodowych. Nowością w badaniu jest fakt, że dostarcza ono dowodów pochodzących z różnorodnych zespołów najwyższego kierownictwa z rynków rozwiniętych, takich jak Niemcy, gdzie cyfryzacja jest jednym z priorytetów niemieckiego rządu, ale także niemieckiej gospodarki ukierunkowanej na napędzanie długoterminowych wyników firm i ich trwałości. Motywacją do przeprowadzenia badania dotyczącego różnorodności zespołów zarządzających w czołowych niemieckich firmach w erze cyfrowej jest fakt, że umiejętności, kompetencje oraz wiedza kadry zarządzającej wyższego szczebla są kluczowymi czynnikami wpływającymi na wyniki i bogactwo t firmy. Ponadto w Niemczech wiele firm odnoszących największe sukcesy wyznaczyło stanowiska kierownicze, aby zarządzać szybką zmianą w kierunku bardziej zdigitalizowanej gospodarki i lepszych wyników firm w niestabilnym globalnym środowisku biznesowym. Wyniki badania pokazują, że różnorodność kadry najwyższego kierownictwa pozytywnie wpływa na powołanie dyrektora ds. digitalizacji / informacji. Ponadto, wyniki badania pokazują, że firmy, które mają w swoim zespole dyrektora ds. digitalizacji, wydają się być bardziej odporne na erę cyfrową niż firmy, które nie powołały dyrektora ds. cyfryzacji.

5

Spatial Distribution and Diversity of Marine Zooplankton Adjacent to the St. Martin's Island, Bangladesh

Alam Md. Jobaer, Kamal A. S. M. Maksud, Ahmed Md. Kawser, Khondker Moniruzzaman, Fayyaz Rafid

Journal of Ecological Engineering

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2022

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Vol. 23, nr 10

154--163

EN

Bangladesh, a country that lies on the north shores of the Bay of Bengal, has been blessed with a plethora of natural resources. St. Martin’s Island, the only coral-bearing island in Bangladesh, is undoubtedly regarded as one of the most prized possessions. It is rich in biodiversity, but truly scientific information on it is lacking. In the present investigation, 14 stations adjacent to St. Martin’s Island within the Bay of Bengal were sampled for determining the composition, spatial distribution, species richness, and diversity of pelagic zooplankton. Samples were collected in the pre-monsoon hot season. From the community of zooplankton, 34 species were reported. Most of the species belonged to copepods. Besides, Polychaeta and Cirripedia were also present in the community. The most significant species belonged to Oithona, Canthocalanus, Balanus, Euterpina, and Microsetella. Total zooplankton standing crop varied from 45,000–125,000 ind/m3 and the highest number of species (8) were observed at station 7. Strong variability in the distribution of species was observed in the studied stations. The number of genera collected at each station varied from 4–8. Data on species richness (Df) varied from 1.30–3.04 and that of the Shannon-Wiener Index (H) from 1.33–1.93. The species composition of zooplankton and the species richness and the diversity index of the population was comparable to the other studies carried out in the Central and Western Bay of Bengal.

6

Assessing benthic macroinvertebrates in relations to environmental variables and revitalisation works

Czerniawska-Kusza Izabela

Ecological Chemistry and Engineering. S

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2022

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Vol. 29, nr 1

99--110

EN

Macroinvertebrates of two ex-manor ponds located in Chroscina, Opole Region (Poland) were studied from 2015 to 2018 to investigate their community composition and diversity and evaluate the heterogeneity of communities on spatial and temporal scale referring to environmental variables and revitalisation work. A total of 32 taxa were recorded (at the family level, except Oligochaeta), 13 of which were Ephemeroptera, Odonata and Trichoptera, recognised as sensitive groups in lentic ecosystems. Macroinvertebrate richness and diversity varied considerably, especially in spring and summer. It was found that habitat heterogeneity influenced benthic invertebrates more than basic water parameters. However, the environmental variables together accounted for only 38 % of the observed variations. Thus, other factors, such as fish predation, may have played a leading role in community shaping. The distinct differences between pond communities, four years after the revitalisation works, resulted more from different habitat features than from the previous sediment removal.

7

Projekty studenckie przekształcenia wybranych stref kampusu akademickiego w dydaktyce

Zalewski Krzysztof, Rosłon Katarzyna

Builder

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2021

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R.25, nr 7

62--65

PL

Kampusy akademickie kojarzą się z tętniącymi życiem przestrzeniami wypełnionymi mieszanką interakcji interpersonalnych, których użytkownikiem jest społeczność akademicka. Ze względu na zaangażowanie samych zainteresowanych, partycypację jednostek uczelni, możliwość interdyscyplinarnej współpracy, styczność z realnymi zadaniami i problemami - studenckie projekty architektoniczne różnych obszarów kampusu są interesującym oraz badawczym materiałem dydaktycznym, szczególnie w zakresie kreacji przestrzeni elastycznej i wielofunkcyjnej, dostępności oraz zrównoważonego rozwoju. Podnoszą także jakość życia, jego różnorodność oraz kreują wizerunek uczelni. Niniejszy artykuł opisuje przykład współpracy projektowej odpowiadającej na realne zapotrzebowanie - projekt wnętrz pomieszczeń Działu Współpracy z Zagranicą Politechniki Śląskiej - wyniku pracy zespołów projektowych studentek i studentów Politechniki Śląskiej w Gliwicach pod kierunkiem autorów artykułu.

EN

Academic campuses are associated with vivid spaces, filled with a mix of social activity and interaction, whose users are the academic community – students in particular. Due to the involvement of users themselves, participation of university units, the possibility of interdisciplinary cooperation, contact with real tasks and problems - student’s architectural projects of various areas of the campus are both an interesting didactic and research topic, especially in terms of creating a flexible and multifunctional space, accessibility, sustainable development - in particular, improving the quality of life and diversity, or creating the image of the University. This article describes an example of design cooperation responding to real demand - interior design of the International Cooperation Department of the Silesian University of Technology - the result of the work of design teams of students of the Silesian University of Technology in Gliwice, Faculty of Architecture and Interior Design, under the supervision of the authors of the article.

8

The determinants of the business performance of commercial banks: A case study of Vietnam

Loan Bui Thi Thu, Thang Nguyen Xuan, Hao Vu Duy, Hieu Ta Quang

Annals of Computer Science and Information Systems

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2021

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Vol. 28

213--215

EN

The paper studies the factors affecting the business performance of commercial banks (2008-2018), based on the examination of bank characteristics according to the information on the financial statements of 24 commercial banks and macroeconomic factors. Our findings provide evidence on the significant influence of the factors of diversity on income structure, cost management and capital structure on the business performance of commercial banks. Some implications and future research directions are thereby proposed.

9

Explosive Valencia – futuristic imagination and the power of tradition in creating the image of urban spaces. Competition and conflict, or coexistence and praise of diversity?

Kaczmarska Elżbieta

Technical Transactions

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2020

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Vol. 117, iss. 1

art. no. e2020007

EN

Selected districts of Valencia and the gradual transformation of their image are presented in this article. The formulation of an appropriate strategy of action and the effect of an example that were initiated by the construction of the City of Arts and Sciences have broken through the stagnation in thinking about space. Revitalisation efforts have been initiated in many of the city’s districts, as well as in its suburban zone. The great explosion of ideas and emotions also carried over to enhancing the historical traditions of the city and the holistic, multi-directional approach to the subject matter of renewal, providing the city with economic stimulation. The author’s own analyses presented in the article pertain to: Ciudad de las Artes y las Ciencias (City of Arts and Sciences), the new development of the Poblats Maritims coastal district, the Ciutat Fallera district and the Orba district of the town of Alfafar, located in Valencia’s metropolitan area. Various proposals for transforming the spatial structure of these districts point to the possibility of conducting an experimental hybrid policy intended to reconcile economic rescaling, entrepreneurship and cultural regionalism in the planned landscape.

PL

W artykule zaprezentowano wybrane dzielnice Walencji i stopniową przemianę ich obrazu. Budowa właściwej strategii działań i efekt przykładu zapoczątkowane przez realizację Miasta Sztuki i Nauki przełamały marazm w myśleniu o przestrzeni. Podjęto prace rewitalizacyjne w wielu dzielnicach miasta i jego strefie podmiejskiej. Wielki wybuch pomysłów i emocji przełożył się również na utrwalenie historycznych tradycji miasta i całościowe wielokierunkowe podejście do problematyki odnowy, co przyniosło miastu ożywienie gospodarcze. Własne analizy przedstawione w artykule dotyczyły kolejno: Ciudad de las Artes y las Ciencias (Miasta Sztuki i Nauki), nowej zabudowy dzielnicy nadmorskiej Poblats Maritims, dzielnicy Ciutat Fallera oraz dzielnicy Orba miasteczka Alfafar położonego w strefie metropolitarnej Walencji. Różnorodne pomysły przekształcenia struktury przestrzennej wymienionych dzielnic wskazują na możliwość prowadzenia eksperymentalnej hybrydowej polityki w celu pogodzenia przeskalowania gospodarczego, przedsiębiorczości i regionalizmu kulturowego w planowanym krajobrazie i przez niego.

10

Wybuchowa Walencja. Futurystyczna wyobraźnia i siła tradycji w kreowaniu obrazu przestrzeni miejskich. Konkurencja i konflikt czy współistnienie i pochwała różnorodności?

Kaczmarska Elżbieta

PUA Przestrzeń Urbanistyka Architektura

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2020

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Vol. 2

73--92

PL

W artykule zaprezentowano wybrane dzielnice Walencji i stopniową przemianę ich obrazu. Budowa właściwej strategii działań i efekt przykładu zapoczątkowane przez realizację Miasta Sztuk i Nauk przełamały marazm w myśleniu o przestrzeni. Podjęto prace rewitalizacyjne w wielu dzielnicach miasta i jego strefie podmiejskiej. Wielki wybuch pomysłów i emocji przełożył się również na utrwalenie historycznych tradycji miasta i całościowe wielokierunkowe podejście do problematyki odnowy, co przyniosło miastu ożywienie gospodarcze. Własne analizy przedstawione w artykule dotyczyły kolejno: Ciudad de las Artes y las Ciencias (Miasta Sztuk i Nauk1), nowej zabudowy dzielnicy nadmorskiej Poblats Marítims, dzielnicy Ciutat Fallera oraz dzielnicy Orba miasteczka Alfafar położonego w strefie metropolitarnej Walencji.

EN

This article presents selected districts of Valencia and the gradual transformation of their image. The formulation of an appropriate strategy of action and the effect of an example that were initiated by the construction of the City of Arts and Sciences have broken through the stagnation in thinking about space. Revitalisation efforts have been initiated in many of the city’s districts, as well as in its suburban zone. The great explosion of ideas and emotions also carried over to expanding the historical traditions of the city and the holistic, multi-directional approach to the subject matter of renewal, providing the city with economic stimulation. The author’s own analyses presented in the article pertain to Ciudad de las Artes y las Ciencias (City of Arts and Sciences), the new development of the Poblats Marítims coastal district, the Ciutat Fallera district and the Orba district of the town of Alfafar, located in Valencia’s metropolitan area. Various proposals for transforming the spatial structure of these districts point to the possibility of conducting an experimental hybrid policy intended to reconcile economic rescaling, entrepreneurship and cultural regionalism in the planned landscape.

11

Contemporary principles of urban design of metropolis. Scale of planned development units and diversity

Guranowska-Gruszecka Krystyna

Przestrzeń i Forma

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2020

|

nr 44

211--230

EN

The aim of the article is to draw readers' attention to radical changes that occur in the contemporary life of the developing civilization, which entails the necessity to adapt to these changes. Accommodating to these changes is not always successful, whereas in Poland the process usually takes place with a delay of about 50 years, compared to Western Europe. In the field of architecture and urban planning, it is necessary to pay attention to the distribution of places of residence in relation to the location of workplaces and leisure facilities in rapidly growing metropolises.

PL

Przedmiotem artykułu jest zwrócenie uwagi czytelników na diametralne zmiany, jakie następują w naszym współczesnym życiu rozwijającej się cywilizacji, co pociąga za sobą konieczność dostosowania się do nich, a nie zawsze to następuje, w Polsce zwykle z opóźnieniem o około 50 lat w stosunku do Europy Zachodniej. W dziedzinie architektury i urbanistyki dotyczy to przede wszystkim rozmieszczenia miejsc zamieszkania w stosunku do lokalizacji miejsc pracy i odpoczynku w rozrastających się gwałtownie metropoliach.

12

Dominant species drive seasonal dynamics of the fish community in the Min estuary, China

Li Jun, Kang Bin

Oceanological and Hydrobiological Studies

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2020

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Vol. 49, No. 1

34--48

EN

Fishery resources are currently facing multiple stresses such as overfishing, pollution and climate change. Looking into processes and mechanisms of the dynamic fish community through detailed quantitative analyses contributes to effective conservation and management of fishery resources. The Min estuary plays an important role in maintaining fisheries in southeastern coastal China, therefore the fish community in the brackish area was investigated and analyzed in this study. A total of 127 species belonging to 91 genera, 49 families and 14 orders were sampled in 2015. Eight indices reflecting four aspects of fish communities were determined, i.e. species richness, species evenness, heterogeneity and taxonomy. Differences between the indices were nonsignificant, suggesting that the use of a single diversity descriptor could not provide a full explanation. Nine dominant species in the Min estuary showed seasonal turnover by rational use of resources and co-occurring species showed correspondingly adequate habitat preferences and feeding habits to avoid competition. The species Harpadon nehereus occurred as the dominant species in three seasons except spring. High values of niche overlap among common or rare species and lower values of niche overlap among all dominant species effectively brought the diversity of the fish community into a state of equilibrium.

13

Diatoms (Bacillariophyta) from the Genus Eunotia and Pinnularia Developing on Soils in the Open Landscape of the Low Beskids

Poradowska Anita

Journal of Ecological Engineering

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2020

|

Vol. 21, nr 7

257--270

EN

In the areas of medium mountains, including the landscape of the Low Beskids, turf communities guarantee the biodiversity increasing the value of open landscape and protecting soil from erosion. The aim of this study was to show the diversity of the diatom communities from the Eunotia and Pinnularia genera developing on soils under the conditions of varied landscape use (meadows, pastures, fallow lands). The research was carried out within the catchment area of the Ryjak stream in the Magura National Park, together with the buffer zone at three sites. The water content varied in the studied soils with fluctuating moisture content depending on the season and the research year. On the other hand, the pH values indicated high acidification of the studied soils. The diatomaceous analysis showed numerous occurrences of the Eunotia (12 taxa) and Pinnularia (18 taxa) genera. The acid pH of the soil undoubtedly favored the development of diatoms of these genera. Most species of the Eunotia and Pinnularia genera usually developed individually, except for Pinnularia borealis Ehrenberg and P. obscura Krasske. They are typically soil species; therefore, they often dominated in the material and occurred in most of the research seasons. Apart from cosmopolitan diatoms, rare or endangered taxa from the Red List of the algae in Poland (Siemińska et al. 2006) were also found on soils. Four species belonged to the endangered category (E): Eunotia botuliformis F. Wild, Nörpel & Lange-Bert., Pinnularia nodosa (Ehrenberg) Smith, P. schoenfelderi and P. viridiformis Krammer. Canonical analysis (CCA) demonstrated a rather low statistical significance of the impact of environmental parameters (pH and humidity) on the differentiation of diatom communities. It only confirmed the fact that diatoms develop better in the environment with permanent or at least periodic moisture, compared to the dry habitats.

14

Ultradiversities and their spherical completeness

Mehrabani Gholamreza H., Nourouzi Kourosh

Journal of Applied Analysis

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2020

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Vol. 26, nr 2

231--240

EN

Diversities are a generalization of metric spaces which associate a positive real number to every finite subset of the space. In this paper, we introduce ultradiversities which are themselves simultaneously diversities and a sort of generalization of ultrametric spaces. We also give the notion of spherical completeness for ultradiversities based on the balls defined in such spaces. In particular, with the help of nonexpansive mappings defined between ultradiversities, we show that an ultradiversity is spherically complete if and only if it is injective.

15

Efects of anisotropic changes on the conductivity of sedimentary aquifers, southeastern Niger Delta, Nigeria

George N. J., Bassey N. E., Ekanem A. M., Thomas J. E.

Acta Geophysica

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2020

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Vol. 68, no. 6

1833--1843

EN

Sundry soils/rocks are characterized by electrical properties with clearly or obscurely expressed anisotropies. These anisotropic efects may be low, moderate or high depending on the coefcient of anisotropy (λ). The vertical electrical sounding technique employing Schlumberger electrode confguration and lithological information from boreholes were deployed to characterize the lithological diversity in homogeneous and anisotropic geologic units that serve as aquifer systems and their overlaying layers in the coastal region of Akwa Ibom State. Based on the λ, the assessed volume of sedimentary formation is classifed into low anisotropy λ<1.2 , moderate anisotropy (1.2 < λ ≤ 1.3) and high anisotropy (λ > 1.3) with alluvium (64.3%), inter-bedded shale and sandstone (14.3%) and shale and slate (21.3%). The estimated percentage of respective compositional coverage indicates that alluvium is dominant, while the blended inter-bedded shale and sandstone as well as the shale and slate are minor geologic units in the Benin Formation. Inferred index of spread of alluvium indicates that the homogeneous and anisotropic units assessed are intrinsic/microscopic in nature as identifed by the impressed current that passed through geologic system. The results showcased that the plot between the strike-dependent resistivity ( ρθ ) at arbitrary chosen strike and geometric mean resistivity ( ρm ) can be used as a yardstick for inferring the degree of consistency of geologic compositions in homogeneous and anisotropic media. Both the quantitative (graphic) and qualitative (contour) results portend the thin possibility of having anisotropy free geologic units. The finding proposes that ground resistivity measurements and interpretations of geologic structures should be constrained by borehole information in order to frm up the intended plans for obtaining clearer, defendable and well-resolved subsurface structures.

16

Gastropod Diversity in Mangrove Forests of Mojo Village, Ulujami District, Pemalang Regency, Indonesia

Puryono Sri, Suryanti Suryanti

Journal of Ecological Engineering

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2019

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Vol. 20, nr 1

165--173

EN

The development of mangrove ecosystem has a significant impact on fishery resources, such as gastropod. This research aimed at studying the community structure of mangrove forest in Mojo village, to identifying and analyzing the composition and diversity of gastropod, and investigating the effect of mangrove community on the abundance and gastropod. The research was conducted in Mojo Village, Ulujami District, Pemalang Region from November to December 2017. Identification of species and density was conducted on mangrove species by means of line and plot transects, while the gastropod was sampled from the field then identified in the laboratory. Three sampling stations were occupied in the data collection. The data analysis was conducted for diversity indices, including heterogeneity and evenness both for mangrove and gastropod. Statistical data analysis was conducted by regression to analyze the effect of mangrove density on the abundance of gastropod. The result showed that only three mangrove species were found in Mojo village, including Rhizophora mucronata, Avicennia marina and A. officinalis. Eight gastropod species were identified from mangrove forest of Mojo village. The most dominant gastropod species was Telescopium telescopium, followed by Cerithidea cingulata. The analysis of heterogeneity index showed a low value for mangrove community and medium value for the gastropod community, ranging from 0.353 to 0.720 and 1.462 to 1.812, respectively. Statistical data analysis showed that the density of R. mucronata and A. marina had a significant effect on the abundance of gastropod specieses, including Cerithidea quadrata and Casidula nucleus, both of which had logarithmic relationship trends.

17

Diversity of Vegetation Dominated by Selected Grass Species on Coal-Mine Spoil Heaps in Terms of Reclamation of Post-Industrial Areas

Błońska Agnieszka, Kompała-Bąba Agnieszka, Sierka Edyta, Bierza Wojciech, Magurno Franco, Besenyei Lynn, Ryś Karolina, Woźniak Gabriela

Journal of Ecological Engineering

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2019

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Vol. 20, nr 2

209--217

EN

Grasses have a considerable potential for the adaptation to various, often extreme, habitat conditions. The aim of the work was to present the vegetation diversity of the coal-mine spoil heaps with the dominant share of grasses and to identify the main factors responsible for this diversity in the aspect of post-industrial land reclamation. The communities differ in reference to the species preferences to light, moisture, soil fertility and reaction, which is reflected in the wide variety of microhabitats in the area. It was shown that the increase in the abundance of certain grass species, including Calamagrostis epigejos, Festuca rubra, Festuca arundinacea, Phragmites australis, has a significant negative impact on the species richness, species diversity and the uniformity of distribution of species of the plant community. Preliminary analyses revealed that on post-mining waste, the biomass production of the dominant species is negatively correlated with biodiversity. The knowledge about the biology and ecology of grass species, as well as on the assembly rules may be used in the reclamation of degraded areas. Gaining the knowledge about the vegetation diversity of the coal-mine spoil heaps with the dominant share of grasses can be useful in planning the reclamation works, taking into account natural processes, which leads to the creation of a permanent vegetation cover at a given site, protecting it against water or wind erosion. In the future these areas may provide a number of important ecosystem services.

18

Impact of learners’ quality and diversity in collaborative clustering

Rastin Parisa, Matei Basarab, Cabanes Guénaël, Grozavu Nistor, Bennani Younés

Journal of Artificial Intelligence and Soft Computing Research

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2019

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Vol. 9, No. 2

149--165

EN

Collaborative Clustering is a data mining task the aim of which is to use several clustering algorithms to analyze different aspects of the same data. The aim of collaborative clustering is to reveal the common underlying structure of data spread across multiple data sites by applying clustering techniques. The idea of collaborative clustering is that each collaborator shares some information about the segmentation (structure) of its local data and improve its own clustering with the information provided by the other learners. This paper analyses the impact of the quality and the diversity of the potential learners to the quality of the collaboration for topological collaborative clustering algorithms based on the learning of a Self-Organizing Map (SOM). Experimental analysis on real data-sets showed that the diversity between learners impact the quality of the collaboration. We also showed that some internal indexes of quality are a good estimator of the increase of quality due to the collaboration.

19

Safe Space - Problem Analysis in the Context of Various Public Spaces

Blecharz Aleksandra, Lis Aleksandra

Architektura Krajobrazu

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2019

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nr 2

28--49

EN

Tolerance is an issue of an extremely complex nature that has given rise to various attitudes in the society as a result of the influence of different factors. The spatial aspect of tolerance is the main topic discussed in detail in our paper. The aim of the study is to determine the potential of various types of public spaces, both as spaces of tolerance and conflict. The research was conducted by means of topical analysis - a qualitative method that consists in providing detailed descriptions and interpretation of the observed behaviour patterns. The analysed material consisted of comments published on the Internet concerning articles and posts about the marginalised groups. The material was analysed in terms of the fundamental research question: what kinds of public spaces intensify the problem of intolerance, and which ones reinforce tolerance? The comments were divided into three thematic groups, based on the expressed attitude (intolerant, neutral and tolerant). The topical analysis of data revealed that the most common factor that intensified intolerance was the lack of a sense of safety connected with the presence of children and the feeling of lack of control. The authors of the comments mentioned schools and the surroundings of residential estates as places where tolerance could not exist. Railway stations and other places that involve intensive communication and the chaos resulting from heavy traffic, which affects the sense of safety, were also described as spaces with negative potential. The comments representing a tolerant attitude also pointed to schools as places with a high tolerance potential, as children are open to differences and obtaining knowledge. Places connected not only with the presence of children, but also their parents, such as family entertainment parks, were mentioned as areas with higher potential to become spaces of tolerance. The reason is the fact that the sense of control over the situation and the safety of children are higher than in schools, and the overall atmosphere of fun. The main conclusion of the study is the observation that a space of tolerance should ensure a sense of safety and control and offer educational functions.

PL

Tolerancja jest problemem o niezwykle skomplikowanej naturze, wobec którego w społeczeństwie, na wskutek działania rozmaitych czynników, wykształciły się różne postawy. Przestrzenny aspekt tolerancji to problem wyczerpująco przedstawiony w niniejszym artykule. Celem pracy jest określenie potencjału różnego rodzaju przestrzeni publicznych zarówno jako przestrzeni tolerancji, jak i konfliktu. Metodą zastosowaną do przeprowadzenia badań była analiza tematyczna - metoda jakościowa polegająca na szczegółowym opisywaniu i interpretacji zaobserwowanych wzorców zachowań. Materiał badawczy stanowiły wypowiedzi zamieszczone w Internecie pod artykułami i wpisami dotyczącymi marginalizowanych grup. Analiza materiału odbywała się pod kątem podstawowego pytania badawczego: w jakich przestrzeniach publicznych nasila się problem nietolerancji, a w jakich to tolerancja ulega intensyfikacji? Wypowiedzi podzielono na trzy grupy tematyczne, dokonując podziału pod kątem przejawianej postawy (nietolerancyjna, pośrednia i tolerancyjna). W wyniku analizy tematycznej danych stwierdzono, że najczęściej występującym czynnikiem intensyfikującym nietolerancję był brak poczucia bezpieczeństwa związany z obecnością dzieci i poczuciem braku kontroli. Szkoła oraz otoczenie osiedli mieszkaniowych wskazywane były przez wypowiadających się jako miejsca, gdzie tolerancja nie ma prawa zaistnieć. Przestrzenią o potencjale negatywnym określone zostały dworce i inne miejsca związane z intensywną komunikacją, które, ze względu na związany z ruchem chaos, obniżają poczucie bezpieczeństwa. Szkoła pojawiała się także w wypowiedziach prezentujących postawę tolerancyjną jako miejsce o potencjale przestrzeni tolerancji ze względu na otwartość dzieci na inność i zdobywanie wiedzy. Miejsca związane z obecnością nie tylko dzieci, ale także ich rodziców, czyli np. parki rozrywki rodzinnej, wskazywane były jako miejsca o większym potencjale na bycie przestrzenią tolerancji. Powodem jest większe, niż w przypadku szkoły, poczucie kontroli nad sytuacją i bezpieczeństwem dzieci oraz ogólna atmosfera zabawy. Głównym wnioskiem z badań jest spostrzeżenie, że przestrzeń tolerancji powinna dawać poczucie bezpieczeństwa i kontroli oraz oferować funkcję edukacyjną.

20

Uwagi o "różnorodności" jako kategorii ontologicznej i aksjologicznej

Czajkowski W.

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2018

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z. 123

103--116

PL

„Różnorodność biologiczna” oraz „różnorodność kulturowa” to pojęcia, za których pomocą zdefiniowano ważne cele międzynarodowej współpracy. Celem artykułu jest ich charakterystyka ich podobieństw i różnic jako kategorii ontologicznej i aksjologicznej.

EN

The concepts of „biological diversity” and „cultural diversity” have been used to define important goals of international cooperation. The goal of this paper is to characterize their similarities and differences if are being comprehended as ontological and axiological categories.