Producing Spalted Alder Wood in Yunnan, China

2019 ◽  
Vol 69 (4) ◽  
pp. 283-288
Author(s):  
Haishan He ◽  
Changtao Gan ◽  
Monlin Kuo ◽  
Jian Qiu ◽  
Jianrong Wu

Abstract Given the demand for environmentally friendly wood stains, dyeing by fungi has come to light as a suitable process for staining wood, textiles, and other materials. The identification of fungi capable of producing spalted wood merits considerable effort by researchers, and some spalted color or styles found on wood in the wild cannot be cultivated in the laboratory. To find additional fungal candidates and styles for spalting in China, we here collected and identified wood fungi in Yunnan and Guangxi in China. Fungi were purchased or isolated and then inoculated to alder wood blocks (Alnus nepalensis D. Don). Out of seven purchased strains, three formed zone lines, but it was unclear whether Chlorociboria aeruginascens cfcc 87397 could do so. Out of 20 strains, 15 species were isolated from wood forming zone lines with surface black pigments, and only Diaporthe sp. ZXH63-4 formed additional yellow pigments accompanied by zone lines throughout the wood, which is a new means of forming yellow pigments and black zone lines at the same time. Some fungi collected from stained wood samples showed reddish-brown zone lines, but they showed black zone lines when isolated and inoculated on alder.

Behaviour ◽  
2017 ◽  
Vol 154 (1) ◽  
pp. 65-91 ◽  
Author(s):  
Brenna Knaebe ◽  
Alex H. Taylor ◽  
Douglas M. Elliffe ◽  
Russell D. Gray

New Caledonian crows have demonstrated flexible behaviour when using tools and solving novel problems. However, we do not know whether this flexibility extends to tool manufacture. Here, we show that these crows respond to different tool-using problems by altering the length of the tools that they manufacture; on average, crows made shorter tools for tasks requiring short tools and longer tools for tasks requiring long tools. They continued to do so when they could not simultaneously see the tool-manufacturing material and the apparatus requiring the use of a tool. Despite altering the length of their tools, the crows frequently did not make tools short or long enough to reliably extract the bait, though this may have been due to shortcomings in the task presented to them. Our results demonstrate that these crows have a degree of behavioural flexibility when making tools, which may be used in the wild during foraging.


2016 ◽  
Vol 42 (13) ◽  
pp. 15104-15106 ◽  
Author(s):  
Byungseo Bae ◽  
Wendusu ◽  
Shinji Tamura ◽  
Nobuhito Imanaka

RSC Advances ◽  
2013 ◽  
Vol 3 (47) ◽  
pp. 24941 ◽  
Author(s):  
Wendusu ◽  
Taihei Honda ◽  
Toshiyuki Masui ◽  
Nobuhito Imanaka

2020 ◽  
Author(s):  
Mithu Lucraft

Accelerating progress towards full and immediate open access (OA) is reliant on being able to source adequate funding to cover the costs of gold OA. Monitoring and tracking OA payments has created a complex and challenging role for institutions, but is crucial in order to understand the complete picture of the cost of OA. Whilst some institutions have developed methods to monitor OA payments, there remain a high number of "APCs in the wild", or APC payments whose origins are difficult to track. In this presentation we will summarise research Springer Nature has undertaken to explore the tracking and monitoring of APC payments, including interviews and a survey of global librarians, and data from Springer Nature authors to better understand the sources of APC funding, and the motivations and challenges concerning the monitoring of APCs. We will focus on feedback from institutions on the routes to implement better tracking, and on the noted benefits of being able to do so in enabling a faster transition to OA.  


ChemInform ◽  
2013 ◽  
Vol 44 (19) ◽  
pp. no-no
Author(s):  
Wendusu Wendusu ◽  
Daisuke Kato ◽  
Toshiyuki Masui ◽  
Nobuhito Imanaka

Oryx ◽  
1969 ◽  
Vol 10 (3) ◽  
pp. 161-166 ◽  
Author(s):  
M. R. K. Lambert
Keyword(s):  

More than 300,000 tortoises are exported every year from Morocco to Britain for pets. To find out the effect of this trade on the populations in the wild, the author, aided by a grant from the FPS/WWF Revolving Fund, searched the known tortoise areas in Morocco, weighing and measuring all he found. In his six weeks in the field he found only 23 tortoises. For the country as a whole he estimates numbers to be of the order of five million, a very thin spread over a large area of ground. But the trade may have a more serious effect than just reducing numbers. Because only tortoises of 4–6 inches (under-shell measurement) are wanted, the collectors concentrate on these, which often leaves small mature males to mate with very large mature females. If they are unable to do so it could seriously affect reproduction rates.


2013 ◽  
Vol 86 (2) ◽  
pp. 283-288 ◽  
Author(s):  
Wendusu ◽  
Daisuke Kato ◽  
Toshiyuki Masui ◽  
Nobuhito Imanaka

1979 ◽  
Vol 34 (7-8) ◽  
pp. 570-575 ◽  
Author(s):  
Georg H. Schmid ◽  
Pierre Thibault

Abstract Protoplasts prepared from the wild type tobacco N. tabacum var. John William’s Broadleaf exhibit photosynthetic oxygen-evolution if the suspension medium is supplemented with bicarbonate. In the absence of bicarbonate no steady state oxygen-evolution is observed with such preparations. Instead, an appreciable uptake which is mainly insensitive to DCMU and which persists over hours, and therefore is no induction phenomenon, is seen. Protoplasts of the tobacco aurea mutant Su/su, which is a plant with an exceptionally high photorespiration, show an oxygen consumption in the light which is 4 to 5 times higher per protoplast than in the wild type. Again, the uptake is practically insensitive to DCMU which means that the effect is to be associated with photosystem I. This is further substantiated by the fact that protoplasts prepared from yellow leaf1 sec­tions of the variegated tobacco mutant NC 95 also show the light induced uptake. As reported earlier, the yellow leaf sections of this mutant exhibit only photosystem I reactions.The action spectrum for this oxygen-uptake yields the spectrum of chlorophyll. Consequently, this uptake is an inherent property of the chloroplast and has nothing to do with earlier described, light-dependent oxygen consumptions, which were mainly driven by blue light and hence used some yellow pigment as the photoreceptor. No effect or contribution of yellow pigments such as carotenoids is seen since the action spectrum with the yellow tobacco mutants which have an up to 4 fold higher carotenoid/chlorophyll ratio than the wild type is identical to that of the wild type.


ACS Omega ◽  
2021 ◽  
Vol 6 (4) ◽  
pp. 3411-3417
Author(s):  
Kohei Minagawa ◽  
Yuichi Nishiguchi ◽  
Ryohei Oka ◽  
Toshiyuki Masui

Author(s):  
Vincent Miele ◽  
Gaspard Dussert ◽  
Bruno Spataro ◽  
Simon Chamaillé-Jammes ◽  
Dominique Allainé ◽  
...  

AbstractAn increasing number of research programs rely on photographic capture-recapture (vs. direct marking) of individuals to study distribution and demography within animal populations. Photo-identification of individuals living in the wild is sometimes feasible using idiosyncratic coat or skin patterns, like for giraffes. When performed manually, the task is tedious and becomes almost impossible as populations grow in size. Computer vision techniques are an appealing and unavoidable help to tackle this apparently simple task in the big-data era. In this context, we propose to revisit giraffe re-identification using convolutional neural networks (CNNs).We first developed an end-to-end pipeline to retrieve a comprehensive set of re-identified giraffes from about 4, 000 raw photographs. To do so, we combined CNN-based object detection, SIFT pattern matching, and image similarity networks. We then quantified the performance of deep metric learning to retrieve the identity of known and unknown individuals. The re-identification performance of CNNs reached a top 5 accuracy of about 90%. Fully based on open-source software packages, our work paves the way for further attempts to build CNN-based pipelines for re-identification of individual animals, in giraffes but also in other species.


Sign in / Sign up

Export Citation Format

Share Document