2,305 results match your criteria: "Karl-Franzens-University of Graz; Universitätsplatz 2; Department of Biology (Zoology); Graz; Austria. gernot.kunz@gmail.com.[Affiliation]"

Article Synopsis
  • The Asian bamboo-feeding leafhopper, Trifida bilobata, has been identified in several European countries for the first time, including Spain, Switzerland, Italy, Austria, and Serbia.
  • The study provides details on the morphology (physical characteristics) and ecology (habitat and behavior) of the specimens collected in these regions.
  • This finding expands the known distribution of this species and highlights its potential impact on local ecosystems.
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Article Synopsis
  • Silica, titanium dioxide, and zinc oxide nanoparticles are commonly found in skin products, but their potential to cause skin sensitization, especially when combined with other sensitizers, is not well understood.
  • This study utilized various cellular assays to explore how these nanoparticles affect skin cells, focusing on keratinocytes and dendritic cells, both alone and in co-cultures.
  • Results showed that the effects of nanoparticles vary significantly depending on the cell type and their interactions, indicating that exposure to these NPs can enhance the skin's reaction to known sensitizers.
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Erratum to "Investigation of biases in convolutional neural networks for semantic segmentation using performance sensitivity analysis" [Z Med Phys 32 (2022) 346-360].

Z Med Phys

September 2024

Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital - Friedrich Schiller University Jena, Germany; Michael Stifel Center Jena for Data-Driven and Simulation Science, Friedrich-Schiller-University Jena, Jena, Germany.

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3D Paper-Based Device Integrated with a Battery-Less NFC Potentiostat for Nonenzymatic Detection of Cholesterol.

ACS Meas Sci Au

August 2024

Sensor Technologist, Silicon Craft Technology Public Company Limited, Bangkok 10900, Thailand.

Portable electrochemical analytical devices such as cholesterol sensors are widely used for disease diagnosis. However, these tools are bulky and require bioreceptors for the specific detection of cholesterol. Herein, a novel 3D electrochemical paper-based analytical device (3D-ePAD) combined with a near-field communication (NFC) potentiostat was developed and applied to the nonenzymatic detection of cholesterol.

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Purpose: Muscle, tendon, and muscle-tendon unit (MTU) stiffness as well as passive peak torque (PPT) or delayed stretching pain sensation are typical explanatory approaches for stretching adaptations. However, in literature, differences in the study inclusion, as well as applying meta-analytical models without accounting for intrastudy dependency of multiple and heteroscedasticity of data bias the current evidence. Furthermore, most of the recent analyses neglected to investigate PPT adaptations and further moderators.

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The zebrafish, a widely used model in neurobiology, relies on hearing in aquatic environments. Unfortunately, its auditory pathways have mainly been studied in larvae. In this study, we examined the involvement of the anterior tuberal nucleus (AT) in auditory processing in adult zebrafish.

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Cytotoxic activity of liposomal essential oil on HT-29 human colorectal cancer cell line.

Pharmazie

May 2024

Department of Drug Analysis and Pharmaceutical Technology, Faculty of Medicine, University of Prishtina, Kosovo.

Multidrug resistance, severe side effects, and high cancer treatment costs are still well-known issues and remain an open challenge. These factors reduce the therapy's efficiency and safety, seriously affecting human health. Developing therapeutic approaches based on plant extracts, especially based on essential oils with cytotoxic and antioxidant properties, could be of efficacious strategies.

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Purpose: While there is reported superior effectiveness with supervised training, it usually requires specialized exercise facilities and instructors. It is reported in the literature that high-volume stretching improves pectoralis muscles strength under supervised conditions while practical relevance is discussed. Therefore, the study objective was to compare the effects of volume equated, supervised- and self-administered home-based stretching on strength performance.

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Magnetization transfer spectroscopy relies heavily on the robust determination of relaxation times of nuclei participating in metabolic exchange. Challenges arise due to the use of surface RF coils for transmission (high variation) and the broad resonance band of most X nuclei. These challenges are particularly pronounced when fast mapping methods, such as the dual-angle method, are employed.

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Introduction: Believing comprises multifaceted processes that integrate information from the outside world through meaning-making processes with personal relevance.

Methods: Qualitative Review of the current literature in social cognitive neuroscience.

Results: Although believing develops rapidly outside an individual's conscious awareness, it results in the formation of beliefs that are stored in memory and play an important role in determining an individual's behavior.

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Electrochemical determination of riboflavin in pharmaceuticals using unmodified screen printed carbon electrodes.

Anal Sci

April 2024

Faculty of Pharmacy, UBT-Higher Education Institution, Lagjja Kalabria P.N., 10000, Pristina, Republic of Kosovo.

In this study, we have devised an efficient and rapid approach to detect riboflavin (also known as Vitamin B2 or VB2) utilizing an unaltered screen-printed carbon electrode (SPCE). The unmodified screen-printed electrodes are created within the laboratory, where carbon ink is applied to a ceramic substrate. All experiments pertaining to the investigation of electrochemical behavior and the fine-tuning of crucial experimental parameters were conducted through cyclic voltammetry (CV).

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Optically-induced changes in membrane capacitance may regulate neuronal activity without requiring genetic modifications. Previously, they mainly relied on sudden temperature jumps due to light absorption by membrane-associated nanomaterials or water. Yet, nanomaterial targeting or the required high infrared light intensities obstruct broad applicability.

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Detection of intestinal parasites in fish typically requires autopsy, resulting in the sacrifice of the fish. Here, we describe a non-lethal method for detecting the tapeworm Eubothrium crassum in fish using anal swabs and real-time PCR detection. Two assays were developed to detect cytochrome oxidase I (COI) mitochondrial DNA and 18S ribosomal DNA sequences of E.

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The Caribbean intertidal mite (Acari, Oribatida), an unexpected case of cryptic diversity?

Org Divers Evol

September 2023

Institute of Biology, Karl-Franzens-University Graz, Universitätsplatz 2, 8010 Graz, Austria.

Unlabelled: Molecular genetic analyses of Caribbean populations of the supposedly widespread intertidal oribatid mite revealed the existence of a cryptic species. The new species, sp. n.

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Extracellular vesicles of the probiotic bacteria E. coli O83 activate innate immunity and prevent allergy in mice.

Cell Commun Signal

October 2023

Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria.

Background: E. coli O83 (Colinfant Newborn) is a Gram-negative (G-) probiotic bacterium used in the clinic. When administered orally, it reduces allergic sensitisation but not allergic asthma.

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Tenascin-C (TNC) is a complex glycoprotein of the extracellular matrix (ECM) involved in a plethora of (patho-)physiological processes, such as oncogenesis and inflammation. Since chemokines play an essential role in both disease processes, we have investigated here the binding of TNC to some of the key chemokines, namely CCL2, CCL26, CXCL8, CXCL10, and CXCL12. Thereby, a differential chemokine-TNC binding pattern was observed, with CCL26 exhibiting the highest and CCL2 the lowest affinity for TNC.

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We investigate how simple physical interactions can generate remarkable diversity in the life history of social agents using data of social wasps, yielding complex scalable task partitioning. We built and analyzed a computational model to investigate how diverse task allocation patterns found in nature can emerge from the same behavioral blueprint. Self-organizing mechanisms of interwoven behavioral feedback loops, task-dependent time delays and simple material flows between interacting individuals yield an emergent homeostatic self-regulation while keeping the global colony performance scalable.

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Levels of toxic and trace metals in the breast milk of lactating mothers in Abeokuta, Ogun State, Nigeria.

Toxicol Rep

December 2023

Department of Environmental Health Science, College of Basic Medical and Health Sciences, Fountain University Osogbo, Osun State, Nigeria.

Background And Objectives: Breast milk is an essential source of nutrients and energy for infants. The study analyzed for the levels of essential, toxic and rare earth elements in the breast milk of lactating mothers within Abeokuta metropolis.

Materials And Methods: Thirty-seven (37) breast milk samples were collected with consents of lactating mothers at Ogun State General Hospital in Abeokuta.

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Optically-induced changes in membrane capacitance may regulate neuronal activity without requiring genetic modifications. Previously, they mainly relied on sudden temperature jumps due to light absorption by membrane-associated nanomaterials or water. Yet, nanomaterial targeting or the required high infrared light intensities obstruct broad applicability.

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Increasing experimental evidence points to the physiological importance of space-time correlations in signaling of cell collectives. From wound healing to epithelial homeostasis to morphogenesis, coordinated activation of biomolecules between cells allows the collectives to perform more complex tasks and to better tackle environmental challenges. To capture this information exchange and to advance new theories of emergent phenomena, we created ARCOS, a computational method to detect and quantify collective signaling.

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This study analyses, compares and correlates historical hydrometeorological data for the Zhetysu Alatau region and its main rivers (Lepsy, Sarykan, Koktal, Byzhy) to document characteristics and evidence of changes in climate change (temperature and precipitation) and its impact on annual and monthly river runoff. This study applies Andreyanov method for computation of runoff data and Mann-Kendall statistic method for assessing statistically significant or weak trends. The study reveals that the pattern of temperature for period of 1960-2020 and runoff for period of 1930-2019 has changed in the region.

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In this diffusion tension imaging study, voxel wise structural equation modeling was used to unravel the relation between white matter, cognition, and age. Four neurocognitive ageing models describing the interplay between age, white matter integrity, and cognition were investigated but only two models survived an Akaike information criterion-based model selection procedure. The independent factor model predicts that there is no relation between white matter integrity and cognition although both systems are affected by age.

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