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34 Results Found

  • Article
  • Open Access
717 Views
14 Pages

In Silico and RP HPLC Studies of Biologically Active 1,3,4-Thiadiazol-2-yl)-benzene-1,3-diols

  • Marek Studziński,
  • Katarzyna Barańska,
  • Beata Paw,
  • Bogusław Senczyna,
  • Tadeusz Paszko and
  • Joanna Matysiak

28 September 2025

Biologically active compounds from the 1,3,4-thiadiazol-2-yl)-benzene-1,3-diols group described earlier have been studied. Various approaches were used to determine their lipophilicity and predict pharmacokinetic properties. The lipophilicity paramet...

  • Article
  • Open Access
8 Citations
1,896 Views
17 Pages

11 November 2022

The BCF (bioconcentration factor) of solutes in aquatic organisms is an important parameter because many undesired chemicals enter the ecosystem and affect the wildlife. Chromatographic retention factor log kwIAM obtained from immobilized artificial...

  • Article
  • Open Access
12 Citations
10,651 Views
12 Pages

Relationship Between Physicochemical Properties and Herbicidal Activity of 1,2,5-Oxadiazole N-Oxide Derivatives

  • L. Fernandez,
  • M. Santo,
  • M. Reta,
  • L. Giacomelli,
  • R. Cattana,
  • J. Silber,
  • M. Risso,
  • H. Cerecetto,
  • M. Gonzalez and
  • C. Olea-Azar

30 September 2005

The relationship between the herbicidal activity of a number of novel 1,2,5-oxadiazole N-oxides and some physicochemical properties potentially related with thisbioactivity, such as polarity, molecular volume, proton acceptor ability, lipophilicity,...

  • Article
  • Open Access
2 Citations
1,632 Views
14 Pages

Comparison of HPLC, HPTLC, and In Silico Lipophilicity Parameters Determined for 5-Heterocyclic 2-(2,4-Dihydroxyphenyl)-1,3,4-thiadiazoles

  • Beata Paw,
  • Rafał Śliwa,
  • Łukasz Komsta,
  • Bogusław Senczyna,
  • Monika Karpińska and
  • Joanna Matysiak

The 5-heterocyclic 2-(2,4-dihydroxyphenyl)-1,3,4-thiadiazoles were obtained as potential biologically active compounds. Lipophilicity is one of the most important physicochemical properties of compounds and was already taken into account during the d...

  • Article
  • Open Access
9 Citations
5,126 Views
12 Pages

Impact of Chainsaw Power on Fuel and Oil Consumption

  • Slavica Antonić,
  • Milorad Danilović,
  • Dušan Stojnić and
  • Srđan Dražić

3 February 2023

This research was carried out in a selection stand of beech and fir, where logging was performed with chainsaws of different powers. Two chainsaws of 3.9 kW were used for work on one area, while on the other one the applied tools were a combination o...

  • Article
  • Open Access
12 Citations
3,108 Views
10 Pages

Efficiency of Visual and Machine Strength Grading of Sawn Timber with Respect to Log Type

  • Izabela Burawska-Kupniewska,
  • Sławomir Krzosek and
  • Piotr Mańkowski

27 October 2021

A batch of pine timber sawn from butt, middle and top logs was strength graded with the visual method (classification into grading classes KW—best quality, KS—medium quality, KG—inferior quality and Reject) and with the machine strength grading metho...

  • Article
  • Open Access
6 Citations
1,487 Views
15 Pages

31 December 2024

This study represents the first-time experimental analysis of lipophilicity for antidiabetic drugs from the gliflozin class using chromatographic methods alongside computational approaches. The lipophilicity of five gliflozins (canagliflozin (CANA),...

  • Article
  • Open Access
2 Citations
4,906 Views
20 Pages

Synthesis and Critical View on the Structure-Activity Relationships of N-(Substituted phenyl)-/N-Diphenylmethyl-piperazine-Based Conjugates as Antimycobacterial Agents

  • Jana Čurillová,
  • Mária Pecháčová,
  • Tereza Padrtová,
  • Daniel Pecher,
  • Šárka Mascaretti,
  • Josef Jampílek,
  • Ľudmila Pašková,
  • František Bilka,
  • Gustáv Kováč and
  • Ivan Malík

29 December 2021

This research focused on a three-step synthesis, analytical, physicochemical, and biological evaluation of hybrid molecules 6a–g, containing a lipophilic 3-trifluoromethylphenyl moiety, polar carbamoyloxy bridge, 2-hydroxypropan-1,3-diyl chain...

  • Article
  • Open Access
32 Citations
8,140 Views
14 Pages

Development and Validation of Liquid Chromatography-Based Methods to Assess the Lipophilicity of Cytotoxic Platinum(IV) Complexes

  • Matthias H. M. Klose,
  • Sarah Theiner,
  • Hristo P. Varbanov,
  • Doris Hoefer,
  • Verena Pichler,
  • Mathea Sophia Galanski,
  • Samuel M. Meier-Menches and
  • Bernhard K. Keppler

4 December 2018

Lipophilicity is a crucial parameter for drug discovery, usually determined by the logarithmic partition coefficient (Log P) between octanol and water. However, the available detection methods have restricted the widespread use of the partition coeff...

  • Article
  • Open Access
33 Citations
7,735 Views
23 Pages

23 January 2020

The permeation of the blood-brain barrier is a very important consideration for new drug candidate molecules. In this research, the reversed-phase liquid chromatography with different columns (Purosphere RP-18e, IAM.PC.DD2 and Cosmosil Cholester) was...

  • Communication
  • Open Access
5 Citations
6,280 Views
13 Pages

Synthesis and Determination of Physicochemical Properties of New 3-(4-Arylpiperazin-1-yl)-2-hydroxypropyl 4-Alkoxyethoxybenzoates

  • Pavlina Marvanova,
  • Tereza Padrtova,
  • Klara Odehnalova,
  • Ondrej Hosik,
  • Michal Oravec and
  • Petr Mokry

7 December 2016

Nine new dihydrochloride salts of 3-(4-arylpiperazin-1-yl)-2-hydroxypropyl 4-alkoxyethoxybenzoates were designed and synthesized. The physicochemical properties such as lipophilicity index (log kw) and dissociation constant (pKa) were experimentally...

  • Article
  • Open Access
8 Citations
5,020 Views
37 Pages

Dibasic Derivatives of Phenylcarbamic Acid against Mycobacterial Strains: Old Drugs and New Tricks?

  • Ivan Malík,
  • Jozef Csöllei,
  • Ivan Solovič,
  • Šárka Pospíšilová,
  • Hana Michnová,
  • Josef Jampílek,
  • Alois Čížek,
  • Iva Kapustíková,
  • Jana Čurillová and
  • Michal Oravec
  • + 3 authors

28 September 2018

In order to provide a more detailed view on the structure–antimycobacterial activity relationship (SAR) of phenylcarbamic acid derivatives containing two centers of protonation, 1-[2-[({[2-/3-(alkoxy)phenyl]amino}carbonyl)oxy]-3-(dipropylammonio)prop...

  • Article
  • Open Access
2 Citations
1,754 Views
14 Pages

Reducing Storage Losses of Organic Apples by Plasma Processed Air (PPA)

  • Robert Wagner,
  • Thomas Weihe,
  • Hauke Winter,
  • Christoph Weit,
  • Jörg Ehlbeck and
  • Uta Schnabel

24 November 2023

The consumer demand for organic food including apples is increasing worldwide. Despite favorable environmental and health benefits, organic farming bears also disadvantages like high amounts of fruit losses due to storage rot. A novel treatment with...

  • Article
  • Open Access
17 Citations
4,848 Views
19 Pages

5 January 2024

Penetration through the blood-brain barrier (BBB) is desirable in the case of potential pharmaceuticals acting on the central nervous system (CNS), but is undesirable in the case of drug candidates acting on the peripheral nervous system because it m...

  • Article
  • Open Access
5 Citations
4,806 Views
19 Pages

23 September 2020

In this study, novel spore pouches were developed using mashed potato as a food model inoculated with either Geobacillus stearothermophilus or Clostridium sporogenes spores. These spore pouches were used to evaluate the sterilization efficiency of Co...

  • Article
  • Open Access
11 Citations
2,906 Views
12 Pages

Klotho Levels and Their Relationship with Inflammation and Survival among Alcoholic Patients

  • Candelaria Martín-González,
  • Elisa Espelosín-Ortega,
  • Pedro Abreu-González,
  • Camino Fernández-Rodríguez,
  • Víctor Eugenio Vera-Delgado,
  • Lourdes González-Navarrete,
  • Alen García-Rodríguez,
  • Antonio Martínez Riera and
  • Emilio González-Reimers

20 August 2022

α-Klotho (Klotho) is an antiaging hormone with anti-inflammatory and antioxidative properties. Some studies suggest that Klotho increases in response to enhanced oxidative damage and inflammation. Alcoholism is a proinflammatory condition. The...

  • Article
  • Open Access
7 Citations
3,380 Views
15 Pages

Lipophilic Studies and In Silico ADME Profiling of Biologically Active 2-Aminothiazol-4(5H)-one Derivatives

  • Małgorzata Redka,
  • Szymon Baumgart,
  • Daria Kupczyk,
  • Tomasz Kosmalski and
  • Renata Studzińska

Pseudothiohydantoin derivatives have a wide range of biological activities and are widely used in the development of new pharmaceuticals. Lipophilicity is a basic, but very important parameter in the design of potential drugs, as it determines solubi...

  • Article
  • Open Access
9 Citations
4,133 Views
20 Pages

Improving Antimicrobial Activity and Physico-Chemical Properties by Isosteric Replacement of 2-Aminothiazole with 2-Aminooxazole

  • Martin Juhás,
  • Andrea Bachtíková,
  • Daria Elżbieta Nawrot,
  • Paulína Hatoková,
  • Vinod Sukanth Kumar Pallabothula,
  • Adéla Diepoltová,
  • Ondřej Janďourek,
  • Pavel Bárta,
  • Klára Konečná and
  • Jan Zitko
  • + 2 authors

Antimicrobial drug resistance is currently one of the most critical health issues. Pathogens resistant to last-resort antibiotics are increasing, and very few effective antibacterial agents have been introduced in recent years. The promising drug can...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,494 Views
19 Pages

Adoption Model Choice Affects the Optimal Subsidy for Residential Solar

  • Tiruwork B. Tibebu,
  • Eric Hittinger,
  • Qing Miao and
  • Eric Williams

3 February 2024

Understanding the adoption patterns of clean energy is crucial for designing government subsidies that promote the use of these technologies. Existing work has examined a variety of adoption models to explain and predict how economic factors and othe...

  • Article
  • Open Access
8 Citations
3,107 Views
18 Pages

A Recommender System for Increasing Energy Efficiency of Solar-Powered Smart Homes

  • Quentin Meteier,
  • Mira El Kamali,
  • Leonardo Angelini and
  • Omar Abou Khaled

19 September 2023

Photovoltaic installations can be environmentally beneficial to a greater or lesser extent, depending on the conditions. If the energy produced is not used, it is redirected to the grid, otherwise a battery with a high ecological footprint is needed...

  • Article
  • Open Access
50 Citations
6,554 Views
22 Pages

10 October 2018

This paper presents a techno-economic assessment of the wind power potential for eight locations distributed over the Northern part of Cyprus. The wind speed data were collected from the meteorological department located in Lefkoşa, Northern Cyprus.T...

  • Article
  • Open Access
609 Views
12 Pages

Background/Objectives: The widespread use of sulfamethoxazole (SMX) has led to increasing antibiotic resistance, and there is a need for improved formulations to enhance its therapeutic effectiveness. In this study, we investigated the biocidal poten...

  • Article
  • Open Access
17 Citations
4,233 Views
15 Pages

Economic Efficiency Assessment of Using Wood Waste in Cogeneration Plants with Multi-Stage Gasification

  • Oleg Marchenko,
  • Sergei Solomin,
  • Alexander Kozlov,
  • Vitaly Shamanskiy and
  • Igor Donskoy

28 October 2020

The aim of this work is to assess the effectiveness of biomass gasification power plants in Russia (Irkutsk region) and compare them with other types of electricity and heat cogeneration systems. Biomass, which is waste from logging and wood processi...

  • Article
  • Open Access
27 Citations
10,682 Views
10 Pages

Combustion of Corn Stover Bales in a Small 146-kW Boiler

  • René Morissette,
  • Philippe Savoie and
  • Joey Villeneuve

22 July 2011

Spring harvested corn stover was used for direct combustion in a 146 kW dual chamber boiler designed for wood logs. Stover had a very low moisture content (6.83 ± 0.17%), a gross calorific value (GCV) of 18.57 MJ/kg of dry matter (±0.32 MJ/kg DM) and...

  • Article
  • Open Access
13 Citations
3,266 Views
16 Pages

Sterilizing Ready-to-Eat Poached Spicy Pork Slices Using a New Device: Combined Radio Frequency Energy and Superheated Water

  • Ke Wang,
  • Chuanyang Ran,
  • Baozhong Cui,
  • Yanan Sun,
  • Hongfei Fu,
  • Xiangwei Chen,
  • Yequn Wang and
  • Yunyang Wang

14 September 2022

In this study, a new device was used to inactivate G. stearothermophilus spores in ready-to-eat (RTE) poached spicy pork slices (PSPS) applying radio frequency (RF) energy (27.12 MHz, 6 kW) and superheated water (SW) simultaneously. The cold spot in...

  • Article
  • Open Access
12 Citations
5,853 Views
33 Pages

Synthesis and In Vitro Antimycobacterial Activity of Novel N-Arylpiperazines Containing an Ethane-1,2-diyl Connecting Chain

  • Tomáš Goněc,
  • Ivan Malík,
  • Jozef Csöllei,
  • Josef Jampílek,
  • Jiřina Stolaříková,
  • Ivan Solovič,
  • Peter Mikuš,
  • Stanislava Keltošová,
  • Peter Kollár and
  • Aidan Coffey
  • + 1 author

30 November 2017

Novel 1-(2-{3-/4-[(alkoxycarbonyl)amino]phenyl}-2-hydroxyethyl)-4-(2-fluorophenyl)-piperazin-1-ium chlorides (alkoxy = methoxy to butoxy; 8a–h) have been designed and synthesized through multistep reactions as a part of on-going research programme fo...

  • Article
  • Open Access
2,206 Views
26 Pages

Cytotoxic Impact of Fluorinated Ligands in Equatorial Position of Trans-Configured Diam(m)inetetracarboxylatoplatinum(IV) Complexes

  • Yvonne Lerchbammer-Kreith,
  • Michaela Hejl,
  • Dominik Wenisch,
  • Michael A. Jakupec,
  • Mathea S. Galanski and
  • Bernhard K. Keppler

17 October 2023

A series of thirty novel tetracarboxylatoplatinum(IV) complexes in trans-configuration featuring combinations of mixed ammine, methylamine, dimethylamine, and cyclopentylamine ligands as well as acetato/propanoato and trifluoropropanoato ligands was...

  • Article
  • Open Access
9 Citations
4,629 Views
15 Pages

19 October 2021

There is an increasing interest in new renewable energy sources for achieving net zero emissions. Consequently, the construction industry has mandated zero-energy building certification (ZEB), through the usage of new renewable energy. However, becau...

  • Feature Paper
  • Article
  • Open Access
10 Citations
4,886 Views
18 Pages

Comparison of Various Chromatographic Systems for Identification of Vortioxetine in Bulk Drug Substance, Human Serum, Saliva, and Urine Samples by HPLC-DAD and LC-QTOF-MS

  • Anna Petruczynik,
  • Karol Wróblewski,
  • Krzysztof Wojtanowski,
  • Tomasz Mroczek,
  • Dariusz Juchnowicz,
  • Hanna Karakuła-Juchnowicz and
  • Tomasz Tuzimski

Background: Determination of psychotropic drugs in clinical study is significant, and the establishment of methodologies for these drugs in biological matrices is essential for patients’ safety. The search for new methods for their detection is...

  • Article
  • Open Access
10 Citations
3,029 Views
11 Pages

Effect of Background Water Matrices on Pharmaceutical and Personal Care Product Removal by UV-LED/TiO2

  • Azar Fattahi,
  • Ivana Jaciw-Zurakowsky,
  • Nivetha Srikanthan,
  • Leslie Bragg,
  • Robert Liang,
  • Norman Zhou,
  • Mark Servos and
  • Maricor Arlos

30 April 2021

In this study, we evaluated the effectiveness of UV-LED-irradiated TiO2 in removing 24 commonly detected PPCPs in two water matrices (municipal wastewater effluent and Suwannee River NOM–synthetic water) and compared their performance with that of ul...

  • Article
  • Open Access
17 Citations
6,314 Views
15 Pages

Evaluation of Small-Scale Gasification for CHP for Wood from Salvage Logging in the Czech Republic

  • Jitka Malaťáková,
  • Martin Jankovský,
  • Jan Malaťák,
  • Jan Velebil,
  • Barbora Tamelová,
  • Arkadiusz Gendek and
  • Monika Aniszewska

24 October 2021

This study focused on small gasification units for combined heat and power generation (CHP) up to 200 kW of electric power, which can use wood from salvage logging, and assessed the current feasibility of running commercially available units in the c...

  • Case Report
  • Open Access
6 Citations
3,281 Views
11 Pages

Using Infrared Imagery to Assess Fire Behaviour in a Mulched Fuel Bed in Black Spruce Forests

  • Brett Moore,
  • Dan K. Thompson,
  • Dave Schroeder,
  • Joshua M. Johnston and
  • Steven Hvenegaard

31 July 2020

An experimental fire was conducted in one-year-old mulched (masticated) boreal fuels, where all aboveground biomass was mulched with no stems removed or left standing. Typical mulching practices remove remnant biomass; leaving biomass in situ reduces...

  • Article
  • Open Access
11 Citations
3,412 Views
13 Pages

Estimation of Productivity and Costs of Using a Track Mini-Harvester with a Stroke Head for the First Commercial Thinning of a Scots Pine Stand

  • Krzysztof Leszczyński,
  • Arkadiusz Stańczykiewicz,
  • Dariusz Kulak,
  • Grzegorz Szewczyk and
  • Paweł Tylek

30 June 2021

The aim of the present work was to estimate the productivity and costs of timber harvesting and forwarding during the first commercial thinning of a Scots pine stand. Three harvesting models were introduced and compared: narrow trail, wide access tra...

  • Article
  • Open Access
1 Citations
931 Views
15 Pages

Research and Application of Drilling Fluid Cooling System for Dry Hot Rock

  • Kuan Li,
  • Bing Li,
  • Shanshan Shi,
  • Zhenyu Wu and
  • Hengchun Zhang

31 March 2025

The drilling fluid cooling system is a key technology for reducing wellbore temperatures, improving the working environment of downhole equipment, and ensuring safe and efficient drilling in high-temperature wells. Based on the existing drilling flui...