Search results for: Roman Tandlich

Items from 1 to 12 out of 12 results

article

Speed, human reality, and the ribovirocell concept of human existence in the COVID19 and post-COVID19 space-time Ribovirocell and resilience to COVID19

Chidinma Iheanetu, Viola Tamášová, Roman Tandlich

Academicus. International Scientific Journal > 2024 > 15 > 29

In this follow up paper, the ribovirocell concept from the first part of the study is linked to the ontological realm of human reality before, during and in the aftermath of COVID19. During this fluid space-time, human reality is multi-faceted and often very complicated. The authors present a division of the reality into fundamental reality and situational reality. Fundamental reality is based on...

article

Simile on sense of self, virocell and the COVID19 pandemic.

Chidinma Uche Iheanetu, Viola Tamášová, Roman Tandlich

Academicus. International Scientific Journal > 2023 > 14 > 28 > 29-58

The virocell concept of a viral lifecycle maintains that there are two main stages in a virus’s existence. The one is a passive state of a virion, which is not a living entity, and the second one is the virocell. In the state of virocell, a virus infects a host’s cell and hijacks its cellular machinery to achieve its own replication. Depending on the way that a cell reacts to a viral infection, it...

article

Between science, science-fiction and COVID19 as a way to interpret the ontological realm of COVID19. Humanity in the post-COVID19 and re-application of knowledge.

Chidinma Iheanetu, Roman Tandlich

Academicus. International Scientific Journal > 2022 > 13 > 26 > 27-46

The current article is an attempt by the authors to present a bioethical case, or rather a search being undertaken to develop tools to interpret the novel ontological realm which has been created, and continues to be transformed in real time, by the COVID19 pandemic and its aftermath. The ontological realm is new, but the physical features of the world and the human in it are partially constants and...

article

Community of Practice as a teaching approach in a postgraduate environment. An insider ethnography of a higher education institution in South Africa

Roman Tandlich

Academicus. International Scientific Journal > 2022 > 13 > 25 > 143-173

This auto-ethnographic description of the experiences in the development of the teaching and learning approach, at the postgraduate level, introduces the impact of the community of practice in the development of the learning processes in South Africa, with an international view. The principles of community of practice are outlined and the theoretical grounding is provided in terms of the notion of...

article

Extended use of grey water for irrigating home gardens in an arid environment

Abdulrahim M. Al-Ismaili, Mushtaque Ahmed, Ahmed Al-Busaidi, Seif Al-Adawi, more

Environmental Science and Pollution Research > 2017 > 24 > 15 > 13650- 13658

The use of treated grey water (GW) for home gardens, peri-urban agriculture and landscaping is becoming popular in many water stressed countries such as Oman. This study aims to investigate the treatment efficacy, health and chemical concerns, cost-benefits and maintenance protocol of a GW treatment system as well as the effect of irrigation with GW on crop yield. Therefore, a decentralized homemade...

article

Survival of Bifidobacteria and their usefulness in Faecal Source Tracking

Catherine D. Luyt, S. M. M. Khamanga, W. J. Muller, Roman Tandlich

Liquid Waste Recovery > 2015 > 1 > 1

Bifidobacteria have long since been recommended as indicators of human and animal pollution. Concentration ratio (tracking ratio) of the sorbitol-utilising bifidobacteria (SUB) and the total bifidobacteria (TB) can be used to distinguish between animal and human sources of faecal water contamination. The cut-off value needs to be calibrated in a given geographical area. Seven sites with permanent...

article

Optimisation of the emulsion liquid membrane composition and demulsification for rhodium extraction

Francis Moyo, Roman Tandlich

Liquid Waste Recovery > 2015 > 1 > 1

This study was aimed at designing an optimised emulsion liquid membrane (ELM) for the extraction of rhodium from precious metal refinery wastewaters. The demulsification process and the structure of the optimised ELM are reported on. Two optimised ELMs were prepared. The first one contained a 30 % solution of toluene in kerosene as diluent with the following concentrations of the ELM components: 30...

article

Mulch tower treatment system Part I: Overall performance in greywater treatment

Bongumusa M. Zuma, Roman Tandlich, Kevin J. Whittington-Jones, Jo E. Burgess

Desalination > 2009 > 242 > 1-3 > 38-56

A mulch tower (MT) system for greywater treatment is introduced in this paper. Materials used to assemble the MT system included mulch, coarse sand, fine and coarse gravel. Limited removal efficiency of the MT system was demonstrated for alkalinity, total hardness, pH, Cl ^– , PO ₄ ^3– , NH ₄ ⁺ , and SO ₄ ^2– , with the estimated cumulative removals ranging...

article

Mulch tower treatment system for greywater reuse Part II: destructive testing and effluent treatment

Roman Tandlich, Bongumusa M. Zuma, Kevin J. Whittington-Jones, Jo E. Burgess

Desalination > 2009 > 242 > 1-3 > 57-69

The mulch tower (MT) system described in Part I was tested to failure to determine its range of operating conditions. An increase in the influent temperature led to a statistically significant release of components of the chemical oxygen demand (COD) and the five day biochemical oxygen demand (BOD ₅ ), as well as phosphates from the MT system. Heterotrophic plate count (HPC) of the mulch layer...

article

Partitioning of Organic Compounds in Phases Imitating the Headgroup and Core Regions of Phospholipid Bilayers

Viera Lukacova, Ming Peng, Roman Tandlich, Anne Hinderliter, more

Langmuir > 2006 > 22 > 4 > 1869 - 1874

article

The effect of terpenes on the biodegradation of polychlorinated biphenyls by Pseudomonas stutzeri

Roman Tandlich, Barbara Brežná, Katarı́na Dercová

Chemosphere > 2001 > 44 > 7 > 1547-1555

The effect of two terpenes, carvone and limonene, on the biodegradation of DELOR 103, a commercial mixture of polychlorinated biphenyls (PCBs), by Pseudomonas stutzeri, an isolate from long-term PCB-contaminated soil, was studied in detail. The addition of both carvone and limonene as potential inducers of the dioxygenase metabolic pathway exerted an enhancing effect on PCB biodegradation when glycerol...

article

Fenton's Type Reaction and Chemical Pretreatment of PCBs

Katarína Dercová, Branislav Vrana, Roman Tandlich, L'ubica Šubová

Chemosphere > 1999 > 39 > 15 > 2621-2628

This study evaluates the effects of Fenton's reagent (FR) on the rate and extent of the oxidative degradation of individual mono, di-, tri- and tetrachlorobiphenyls in the commercial mixture DELOR 103, equivalent to AROCLOR 1248. The oxidation effect of FR strongly increased with increasing the molar ratio of Fe ² ⁺ /H ₂ O ₂ . The most effective oxidation of DELOR 103 (10...

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Search results for: Roman Tandlich

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