Search results for: A. Los

Items from 1 to 20 out of 111 results

article

Pszczoła miodna jako alternatywny, bezkręgowy organizm modelowy

A. Los, M. Bienkowska, A. Strachecka

Medycyna Weterynaryjna > 2019 > 75 > 2

Insects perfectly fit the flagship principle of animal research – 3R: to reduce (the number of animals), to replace (animals with alternative models) and to refine (methods). Bees have the most important advantages of a model organism: they cause minimal ethical controversy, they have a small and fully known genome, and they permit the use of many experimental techniques. Bees have a fully functional...

article

Wpływ czynników środowiskowych oraz antropogenicznych na występowanie zespołu bielenia rafy koralowej oraz chorób koralowców

M. Schulz, A. Los, P. Skowronek, A. Strachecka

Medycyna Weterynaryjna > 2019 > 75 > 4

Coral reefs are the most productive ecosystems on Earth. They ensure the conservation of biodiversity and are a live habitat for 25% of all marine organisms. The main relationship on the coral reef is the symbiosis between corals and algae from the genus Symbiodinium (commonly called zooxanthellae). The authors of this publication have characterized and described the factors limiting the occurrence...

article

High‐resolution Micro‐CT Myelography to Assess Spinal Subarachnoid Space Changes After Spinal Cord Injury in Rats

Pablo C. Zambrano‐Rodríguez, Sirio Bolaños‐Puchet, Horacio J. Reyes‐Alva, Roberto A. Los Santos, more

Journal of Neuroimaging > 31 > 1 > 79 - 89

BACKGROUND AND PURPOSE The spinal subarachnoid space (SSAS) is vital for neurologic function. Although SSAS alterations are known to occur after spinal cord injury (SCI), there is a lack of high‐resolution imaging studies of the SSAS after SCI in rodents. Therefore, the aim here was to assess changes in the SSAS of rats subjected to graded SCI, using high‐resolution micro‐CT myelography. METHODS...

article

Effect of Reclaim Addition on the Mechanical and Technological Properties of Moulding Sands Based on Pro-Ecological Furfuryl Resin

J. Kamińska, S. Puzio, M. Angrecki, A. Łoś

Archives of Metallurgy and Materials > 2020 > Vol. 65, iss. 4 > 1425--1429

Increasing demands are imposed on foundries to enforce the manufacture of castings characterized by tight dimensional tolerances, high surface finish and total absence of casting defects. To face these challenges, castings are increasingly made in loose self-hardening sands with furfuryl resin, commonly known as furan sands. In the group of self-hardening sands with synthetic resins, loose self-hardening...

article

Climatology and change of extreme precipitation events in Taiwan based on weather types

Yi‐chao Wu, S.‐Y. Simon Wang, Yi‐Chiang Yu, Chu‐Ying Kung, more

International Journal of Climatology > 39 > 14 > 5351 - 5366

Taiwan's most significant natural hazards are caused by hydrological extremes resulting from excessive precipitation. The threat of extreme precipitation is posed by several different types of weather patterns that affect Taiwan. This study examined the bi‐decadal changes in rainfall by defining an extreme precipitation occurrence (EPO) for a range of event durations from 1 to 24 hr. Three major weather...

article

P07.10: Are the results of vascularisation index obtained with 3D power Doppler and 4D power Doppler technology comparable?

M.J. Kudla, A. Los

Ultrasound in Obstetrics & Gynecology > 54 > S1 > 176 - 177

article

Comparison of Lactate Dehydrogenase Activity in Hive and Forager Honeybees May Indicate Delayed Onset Muscle Soreness – Preliminary Studies

A. Strachecka, M. Grzybek, A. A. Ptaszynska, A. Los, more

Biochemistry (Moscow) > 2019 > 84 > 4 > 435-440

Active skeletal muscles produce lactate. H⁺ is generated during lactate neutralization in the Cori cycle, which leads to muscle acidosis and soreness (the so-called Delayed Onset Muscle Soreness, DOMS) in vertebrates. The aim of the study was to determine the activities/concentrations of compounds involved in the Cori cycle in worker and forager bees. Muscles, fat bodies, and hemolymph from 1- and...

article

Intermittency of water vapor fluxes from vineyards during light wind and convective conditions

Sebastian A. Los, Lawrence E. Hipps, Joseph G. Alfieri, William P. Kustas, more

Irrigation Science > 2019 > 37 > 3 > 281-295

Vineyards in many semi-arid regions globally face limited water resources. Monitoring evapotranspiration (ET) of vineyards is critical for water resource management, but remains difficult due to the complex biophysics of the surfaces. Both measurement and modeling approaches for estimating turbulent water vapor transport rely on implicit assumptions that exchanges occur in a reasonably regular fashion...

article

Eksperymentalne badanie wpływu zjawiska fali stojącej na jakość zgrzewu materiałów termoplastycznych w metodzie zgrzewania wysoką częstotliwością

A. Los, D. Kobylarz, G. Sobolewska, P. Kotula

Przegląd Elektrotechniczny > 2018 > R. 94, nr 12 > 250--253

W odniesieniu do dielektryków polarnych metoda zgrzewania tworzyw sztucznych polem elektrycznym wysokiej częstotliwości jest obecnie najskuteczniejszą metodą pod względem prędkości zgrzewania, wydajności procesu, oraz jakości otrzymywanych połączeń. Niemniej jednak, producenci maszyn opartych na tej zasadzie działania muszą brać pod uwagę efekty falowe, które mają bezpośredni wpływ na proces zgrzewania,...

article

Membrane physical state and stress regulation in Synechocystis: fluidizing alcohols repress fatty acid desaturation

Kirill S. Mironov, Maria Shumskaya, Roman A. Sidorov, Marina S. Trofimova, more

The Plant Journal > 96 > 5 > 1007 - 1017

Cyanobacteria are prokaryotic photosynthetic organisms widely used in biotechnology, photosynthesis and abiotic stress research. There are several cyanobacterial strains modified to produce biofuels, but the influence of alcohols on cyanobacterial cell physiology is poorly understood. Here, we conducted a systematic study of the effects of nine primary aliphatic alcohols and an aromatic benzyl alcohol...

article

An Insight into the Phase Transformation of WS₂ upon Fluorination

Sruthi Radhakrishnan, Deya Das, Liangzi Deng, Parambath M. Sudeep, more

Advanced Materials > 30 > 44 > n/a - n/a

The transformation from semiconducting to metallic phase, accompanied by a structural transition in 2D transition metal dichalcogenides has attracted the attention of the researchers worldwide. The unconventional structural transformation of fluorinated WS₂ (FWS₂) into the 1T phase is described. The energy difference between the two phases debugs this transition, as fluorination enhances the stability...

article

Crop Water Stress Index of an irrigated vineyard in the Central Valley of California

John H. Prueger, Christopher K. Parry, William P. Kustas, Joseph G. Alfieri, more

Irrigation Science > 2019 > 37 > 3 > 297-313

Water-limiting conditions in many California vineyards necessitate assessment of vine water stress to aid irrigation management strategies and decisions. This study was designed to evaluate the utility of a Crop Water Stress Index (CWSI) using multiple canopy temperature sensors and to study the diurnal signature in the stress index of an irrigated vineyard. A detailed instrumentation package comprised...

article

Substrate Specificity of Acyl-Lipid Δ9-Desaturase from Cyanobacterium sp. IPPAS B-1200, a Cyanobacterium with Unique Fatty Acid Composition

A. Yu. Starikov, A. A. Usserbaeva, K. S. Mironov, R. A. Sidorov, more

Russian Journal of Plant Physiology > 2018 > 65 > 4 > 490-497

Cyanobacterium sp. IPPAS B-1200 is characterized by a high content of rare fatty acids (FAs), both myristic (14:0–30%) and myristoleic (14:1Δ9–10%) in the membrane lipids. Thus, short-chain FAs reach 40% of the sum of all FAs in cells, which is unusual for Cyanobacteria. Monounsaturated palmitoleic acids (16:1Δ9) also reach 40% of the sum of the FAs. We determined the complete nucleotide sequence...

article

Isolation and Characterization of Toxic Cyanobacteria from Different Natural Sources

K. Bolatkhan, N. R. Akmukhanova, B. K. Zayadan, A. K. Sadvakasova, more

Applied Biochemistry and Microbiology > 2017 > 53 > 7 > 754-760

We isolated seven algologically and five bacteriologically pure cultures of toxin-producing cyanobacteria from Turgen gorge (Kazakhstan), Karlovy Vary (Czech Republic), and Shar-Nuur Lake, Bayan Ulgiiregion (Mongolia) springs. According to the Daphnia magna test, Desertifilum sp. and Nostoc sp. strains were the most toxic in the test of isolated strains (complete death of all test organisms was detected...

article

Nosema apis i Nosema ceranae - porównanie morfologii, metod identyfikacji oraz przebiegu mikrosporydiozy u pszczół miodnych

M. Schulz, P. Skowronek, J. Tyszczuk, A. Los, more

Przegląd Hodowlany > 2018 > 86 > 1

article

Indywidualne i społeczne mechanizmy odporności pszczoły miodnej

A. Strachecka, A. Los, J. Filipczuk, M. Schulz

Medycyna Weterynaryjna > 2018 > 74 > 7

Honey bees (Apis mellifera) are constantly exposed to contact with many types of pathogens. However, during evolution they developed a number of immune mechanisms. At the individual level, they comprise 1) resistance mechanisms associated with anatomical and physiological barriers of the body, 2) cell-mediated immunity involving hemocytes (including plasmocytes, lamellocytes, and granulocytes), 3a)...

article

Zgnilec amerykański - niebezpieczna choroba bakteryjna pszczoly miodnej

M. Schulz, A. Los, P. Skowronek, A. Staniszewski, more

Journal of Animal Science, Biology and Bioeconomy > 2018 > 36 > 2

article

Feasibility of Preparing Nesting Box and Luring Large Solitary Carpenter Bee, Xylocopa Valga

M. Schulz, R. Scibor, K. Badurowicz, A. Los, more

Journal of Apicultural Science > 2017 > 61 > 2

article

Substrate specificity of acyl-lipid Δ9-desaturase from Prochlorothrix hollandica cyanobacterium producing myristoleic acid

A. Yu. Starikov, A. A. Userbaeva, S. S. Lapina, K. S. Mironov, more

Russian Journal of Plant Physiology > 2017 > 64 > 4 > 560-565

Chlorophyll b-containing cyanobacterium Prochlorothrix hollandica is characterized by a high content of esterified fatty acids (FA) with 14 and 16 carbon atoms in the membrane lipids. Depending on the conditions of cultivation, the relative amount of myristic (C_14:0) and myristoleic (C_14:1) acids can reach 35%, and palmitic (С_16:0) and palmitoleic (С_16:1) acids can reach 60% of the sum of all fatty...

article

Timing a week later: The role of long-term memory in temporal preparation

Rozemarijn M. Mattiesing, Wouter Kruijne, Martijn Meeter, Sander A. Los

Psychonomic Bulletin & Review > 2017 > 24 > 6 > 1900-1905

Temporal preparation has been investigated extensively by manipulating the foreperiod, the interval between a warning stimulus and target stimulus requiring a speeded response. Although such research has revealed many effects of both the duration and distribution of foreperiods on reaction times, the underlying cognitive mechanism is still largely unknown. Here, we test a recent proposal that temporal...

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INFONA - science communication portal

Search results for: A. Los

Pszczoła miodna jako alternatywny, bezkręgowy organizm modelowy

Wpływ czynników środowiskowych oraz antropogenicznych na występowanie zespołu bielenia rafy koralowej oraz chorób koralowców

High‐resolution Micro‐CT Myelography to Assess Spinal Subarachnoid Space Changes After Spinal Cord Injury in Rats

Effect of Reclaim Addition on the Mechanical and Technological Properties of Moulding Sands Based on Pro-Ecological Furfuryl Resin

Climatology and change of extreme precipitation events in Taiwan based on weather types

P07.10: Are the results of vascularisation index obtained with 3D power Doppler and 4D power Doppler technology comparable?

Comparison of Lactate Dehydrogenase Activity in Hive and Forager Honeybees May Indicate Delayed Onset Muscle Soreness – Preliminary Studies

Intermittency of water vapor fluxes from vineyards during light wind and convective conditions

Eksperymentalne badanie wpływu zjawiska fali stojącej na jakość zgrzewu materiałów termoplastycznych w metodzie zgrzewania wysoką częstotliwością

Membrane physical state and stress regulation in Synechocystis: fluidizing alcohols repress fatty acid desaturation

An Insight into the Phase Transformation of WS₂ upon Fluorination

Crop Water Stress Index of an irrigated vineyard in the Central Valley of California

Substrate Specificity of Acyl-Lipid Δ9-Desaturase from Cyanobacterium sp. IPPAS B-1200, a Cyanobacterium with Unique Fatty Acid Composition

Isolation and Characterization of Toxic Cyanobacteria from Different Natural Sources

Nosema apis i Nosema ceranae - porównanie morfologii, metod identyfikacji oraz przebiegu mikrosporydiozy u pszczół miodnych

Indywidualne i społeczne mechanizmy odporności pszczoły miodnej

Zgnilec amerykański - niebezpieczna choroba bakteryjna pszczoly miodnej

Feasibility of Preparing Nesting Box and Luring Large Solitary Carpenter Bee, Xylocopa Valga

Substrate specificity of acyl-lipid Δ9-desaturase from Prochlorothrix hollandica cyanobacterium producing myristoleic acid

Timing a week later: The role of long-term memory in temporal preparation

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