There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

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Modern Applied Statistics With S

中枢神経系疾患の治療は正常細胞（ニューロン）の機能維持を目的とするが，脳血管障害のように機能障害の原因が細胞の死滅に基づくことは多い．一方，脳腫瘍の治療においては薬物療法や放射線療法といった腫瘍細胞の死滅を目標とするものが大きな位置を占める．いずれの場合にも，細胞死の機序を理解することは各種病態や治療法の理解のうえで重要である．現在のところ最も研究の進んでいる細胞死の型はアポトーシスである．そのなかで重要な位置を占めるミトコンドリアにおける反応および抗アポトーシス因子について概要を紹介する．

Neuroscience 細胞死：最近の知見

Guidelines for use of wild mammal species in research are updated from [Sikes et al. (2011)][1]. These guidelines cover current professional techniques and regulations involving the use of mammals in research and teaching; they also incorporate new resources, procedural summaries, and reporting requirements. Included are details on capturing, marking, housing, and humanely killing wild mammals. It is recommended that Institutional Animal Care and Use Committees (IACUCs), regulatory agencies, and investigators use these guidelines as a resource for protocols involving wild mammals, whether studied in the field or in captivity. These guidelines were prepared and approved by the American Society of Mammalogists (ASM), in consultation with professional veterinarians experienced in wildlife research and IACUCs, whose collective expertise provides a broad and comprehensive understanding of the biology of nondomesticated mammals. The current version of these guidelines and any subsequent modifications are available online on the Animal Care and Use Committee page of the ASM website ( ). Additional resources pertaining to the use of wild animals in research are available at: .

Resumen Los lineamientos para el uso de especies de mamiferos de vida silvestre en la investigacion con base en [Sikes et al. (2011)][1] se actualizaron. Dichos lineamientos cubren tecnicas y regulaciones profesionales actuales que involucran el uso de mamiferos en la investigacion y ensenanza; tambien incorporan recursos nuevos, resumenes de procedimientos y requisitos para reportes. Se incluyen detalles acerca de captura, marcaje, manutencion en cautiverio y eutanasia de mamiferos de vida silvestre. Se recomienda que los comites institucionales de uso y cuidado animal (cifras en ingles: IACUCs), las agencias reguladoras y los investigadores se adhieran a dichos lineamientos como fuente base de protocolos que involucren mamiferos de vida silvestre, ya sea investigaciones de campo o en cautiverio. Dichos lineamientos fueron preparados y aprobados por la ASM, en consulta con profesionales veterinarios experimentados en investigaciones de vida silvestre y IACUCS, de quienes cuya experiencia colectiva provee un entendimiento amplio y exhaustivo de la biologia de mamiferos no-domesticados. La presente version de los lineamientos y modificaciones posteriores estan disponibles en linea en la pagina web de la ASM, bajo Cuidado Animal y Comite de Uso: ( ). Recursos adicionales relacionados con el uso de animales de vida silvestre para la investigacion se encuentran disponibles en ( ).

 [1]: #ref-69

/pdf/2016-guidelines-of-the-american-society-of-mammalogists-for-3an7mvie1s.pdf

2016 Guidelines of the American Society of Mammalogists for the use of wild mammals in research and education.

Guidelines for the treatment of animals in behavioural research and teaching

Nociception is the detection of a noxious tissue-damaging stimulus and is sometimes accompanied by a reflex response such as withdrawal. Pain perception, as distinct from nociception, has been demonstrated in birds and mammals but has not been systematically studied in lower vertebrates. We assessed whether a fish possessed cutaneous nociceptors capable of detecting noxious stimuli and whether its behaviour was sufficiently adversely affected by the administration of a noxious stimulus. Electrophysiological recordings from trigeminal nerves identified polymodal nociceptors on the head of the trout with physiological properties similar to those described in higher vertebrates. These receptors responded to mechanical pressure, temperatures in the noxious range (more than 40 degrees C) and 1% acetic acid, a noxious substance. In higher vertebrates nociceptive nerves are either A-delta or C fibres with C fibres being the predominating fibre type. However, in the rainbow trout A-delta fibres were most common, and this offers insights into the evolution of nociceptive systems. Administration of noxious substances to the lips of the trout affected both the physiology and the behaviour of the animal and resulted in a significant increase in opercular beat rate and the time taken to resume feeding, as well as anomalous behaviours. This study provides significant evidence of nociception in teleost fishes and furthermore demonstrates that behaviour and physiology are affected over a prolonged period of time, suggesting discomfort.

/pdf/do-fishes-have-nociceptors-evidence-for-the-evolution-of-a-357490aby3.pdf

Do Fishes Have Nociceptors? Evidence for the Evolution of a Vertebrate Sensory System

https://www.wellbeingintlstudiesrepository.org/cgi/viewcontent.cgi?article=1037&context=acwp_vsm

The Evidence for Pain in Fish: The Use of Morphine as an Analgesic

https://www.wellbeingintlstudiesrepository.org/cgi/viewcontent.cgi?article=1068&context=acwp_arte

Defining and assessing animal pain

Theoreticians predict that animal ‘personality’ traits may be maladaptive if fixed throughout different contexts, so the present study aimed to test whether these traits are fixed or plastic. Rainbow trout (Onchorhyncus mykiss) were given emboldening or negative experiences in the forms of watching bold or shy individuals responding to novelty or winning or losing fights to examine whether prior experience affected boldness. Bold individuals that lost fights or watched shy demonstrators became more shy by increasing their latency to approach a novel object, whereas shy observers that watched bold demonstrators remained cautious and did not modify their responses to novelty. Shy winners became bolder and decreased their latency to approach a novel object, but shy losers also displayed this shift. In comparison, control groups showed no change in behaviour. Bold fishes given negative experiences reduced their boldness which may be an adaptive response; however, shy fishes may base their strategic decisions upon self-assessment of their relative competitive ability and increase their boldness in situations where getting to resources more quickly ensures they outcompete better competitors.

/pdf/plasticity-in-animal-personality-traits-does-prior-2q6nz7tfle.pdf

Lynne U. Sneddon

Papers

Guidelines for the treatment of animals in behavioural research and teaching

Do Fishes Have Nociceptors? Evidence for the Evolution of a Vertebrate Sensory System

The Evidence for Pain in Fish: The Use of Morphine as an Analgesic

Defining and assessing animal pain

Plasticity in animal personality traits: does prior experience alter the degree of boldness?