Post-embryonic acute developmental processes mainly allow the transition from one life stage in a specific ecological niche to next different niche. Metamorphosis, an emblematic type of these post-embryonic processes, has occurred repeatedly and independently various phylogenetic groups throughout metazoan evolution, such as cnidarian, insects, molluscs, tunicates, or vertebrates. This review w...

Image metamorphosis, commonly known as morphing, is a powerful tool for visual effects that consists of the fluid transformation of one digital image into another. There are many techniques for image metamorphosis, but in all of them there is a need for a person to supply the correspondence between the features in the source image and target image. In this paper we describe a method to perform ...

T H E accelerated transformation of frog tadpoles to adults by thyroid feeding and also iodine, demonstrated by many workers since Gudernatsch's original experiments, and further, the inability of thyroidless tadpoles to change unless given either thyroid or iodine (Swingle), has established the importance of both thyroid and iodine in amphibian metamorphosis. Various glands of internal secreti...

The total dependence of amphibian metamorphosis on thyroid hormone (T(3)) provides a unique vertebrate model for studying the molecular mechanism of T(3) receptor (TR) function in vivo. In vitro transcription and developmental expression studies have led to a dual function model for TR in amphibian development, i.e., TRs act as transcriptional repressors in premetamorphic tadpoles and as activa...

global trend of fashion photography has adopted the modesty fashion photography as a new procedure for advertising the hijab fashion. the birthplace of this current is outside of islamic countries but it has become important to accommodate fashion and photography with religious beliefs in islamic countries. the paper tries to review the fashion photography in the field of hijab fashion concerni...

A biochemically based model was developed to simulate the growth, development and metamorphosis of larvae of the Pacific oyster, Crassostrea gigas. The model is unique in that it (1) defines larvae in terms of their protein, neutral lipid, polar lipid, carbohydrate and ash content; (2) tracks weight separately from length to follow larval condition index and (3) includes genetic variation in gr...

In previous papers I have shown that feeding thymus gland to the larvae of salamanders retards or completely inhibits metamorphosis 1'~ as well as growth. 3 I t was also demonstrated ~ that the inhibition of both growth and metamorphosis is not caused by specific growthinhibiting substances contained in the thymus, but by a deficiency of the thymus in certain substances which are necessary for ...

Environments experienced by organisms during early development shape the character and timing of developmental processes, leading to different probabilities of survival in the developmental habitat, and often profound effects on phenotypic expression later in life. Amphibian larvae have immense capacity for plasticity in behavior, morphology, growth and development rate. This creates the potent...

The majority of studies on pesticide impacts have evaluated the effects of single exposures. However, multiple exposures to a pesticide may be more prevalent. The objective of our study was to determine how multiple exposures versus single exposure at different times during development affected survival to metamorphosis, tadpole survival, tadpole mass, and tadpole developmental stage of green f...

Current understandings on the molecular mechanisms underlying bivalve metamorphosis are still fragmentary, and a comprehensive description is required. In this study, using a large-scale label-free proteomic approach, we described and compared the proteomes of competent larvae (CL) and juveniles (JU) of the Pacific oyster, Crassostrea gigas. A total of 788 proteins were identified: 392 in the C...