Results 61 to 70 of about 575,112 (309)

Content of pyrrolizidine alkaloids in the leaves of coltsfoot (Tussilago farfara L.) in Poland

Acta Societatis Botanicorum Poloniae, 2013
Coltsfoot (Tussilago farfara L.) is a common species, widely used in European and Chinese traditional medicine for the treatment of respiratory diseases. However, raw material from this plant contains hepatotoxic pyrrolizidine alkaloids (PAs). The aim of
Artur Adamczak, Bogna Opala, Agnieszka Gryszczyńska, Waldemar Buchwald   +3 more
doaj   +1 more source

The deep sea is a major sink for microplastic debris [PDF]

Royal Society Open Science, 2014
Marine debris, mostly consisting of plastic, is a global problem, negatively impacting wildlife, tourism and shipping. However, despite the durability of plastic, and the exponential increase in its production, monitoring data show limited evidence of ...
Lucy C. Woodall, Anna Sanchez-Vidal, Miquel Canals, Gordon L.J. Paterson, Rachel Coppock, Victoria Sleight, Antonio Calafat, Alex D. Rogers, Bhavani E. Narayanaswamy, Richard C. Thompson   +9 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Alkali treatment and its effect on tribological properties of naturally woven coconut sheath polyester composite [PDF]

, 2013
In the recent years natural fibres have drawn great interest for its bio-degradability, low cost and its availability in nature. Among different types of natural fibres, naturally woven coconut sheath fibres are one of the recently explored alternatives ...
Irullappasamy, Siva, Jebas Thangiah, Winowlin, Sukumaran, Jacob, Szakál, Zoltan   +3 more
core  

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

Forecasting jute (Corchorus spp.) prices and arrivals in West Bengal using ARIMA and advanced machine learning techniques

The Indian Journal of Agricultural Sciences
The study aimed to forecast and understand the price movements and volatility in jute (Corchorus spp.) prices and arrivals from 2007–2023 across the markets of four major jute growing districts in West Bengal namely Uttar Dinajpur, Nadia, Coochbehar ...
SOURAV GHOSH, N M ALAM, DEBARATI DATTA, SONALI PAUL MAZUMDAR, BIJAN MAJUMDAR, SABYASACHI MITRA, RITESH SAHA, SANJOY SAHA, GOURANGA KAR   +8 more
doaj   +1 more source

Fruit yield of european cranberry (Oxycoccus palustris Pers.) in different plant communities of peatlands (northern Wielkopolska, Poland)

Acta Agrobotanica, 2012
The aim of this study was to determine fruit yield of Oxycoccus palustris under the climatic and habitat conditions of northern Wielkopolska (the Greater Poland region), depending on the type of occupied plant community.
Artur Adamczak, Maciej Gąbka, Waldemar Buchwald   +2 more
doaj   +1 more source

The Motor Innervation of a Triply Innervated Crustacean Muscle [PDF]

, 1939
The crustacean muscle is extremely sensitive to mechanical injury. This is due to the fact that the muscle fibres are innervated by a feltwork of nerve fibres which surrounds them.
van Harreveld, A.
core  

Lifetime quenching in Yb doped fibres

, 1997
We have discovered that in ytterbium-doped silica fibres the excited state lifetime of a fraction of the Yb ions can be quenched to a very small value, leading to a strong unbleachable loss.
Barber, P.R., Caplen, J.E., Hanna, D.C., Nilsson, J., Paschotta, R., Tropper, A.C.   +5 more
core   +1 more source

Erbium-doped nanoparticles in silica-based optical fibres [PDF]

, 2012
Developing of new rare-earth (RE)-doped optical fibres for power amplifiers and lasers requires continuous improvements in the fibre spectroscopic properties (like shape and width of the gain curve, optical quantum efficiency, resistance to spectral hole
Blanc, Wilfried, Dussardier, Bernard, Mauroy, Valérie   +2 more
core   +3 more sources