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The Eclectikus Box is full of arbitrary amusementrelatively haphazard stuff, and incidental niceties.

For something more methodic, try my award winning blog "Science is Beauty".




Craziness doubtless has more followers and servants than Wisdom. Don Quixote (II, 13)



twitter.com/scienceisbeauty:

    mucholderthen:

    VESICULAR FUSION
    by Suety Kwan [on Behance]

    The final image was published on the cover of the journal Autophagy, tying in to the lead article on the fusion of amphisomes and lysosomes
    _______________________________

    AUTOPHAGY [“eating self”] or autophagocytosis [“the process in which cells eat themselves”] is the basic mechanism for recycling of unnecessary or dysfunctional cellular components  Autophagy, if regulated, ensures the synthesis, degradation and recycling of cellular components, and helps cells to survive starvation by maintaining energy levels
    [Based on wikipedia]

    Read more on vesicles …
    Read more on lysosomes …
    _______________________________

    IMAGES:  Illustration  |  Journal cover

    (via talesofscienceandlove)

    — 9 months ago with 403 notes
    #science  #biology 
    scienceyoucanlove:

CHICKEN EMBRYO VASCULAR SYSTEM

This fluorescence micrograph shows the vascular system of a developing chicken embryo, two days after fertilization. Injecting fluorescent dextran revealed the entire vasculature used by the embryo to feed itself from the rich yolk inside the egg.
source
photo credit to VINCENT PASQUEE, UNIVERSITY OF CAMBRIDGE

    scienceyoucanlove:

    CHICKEN EMBRYO VASCULAR SYSTEM

    This fluorescence micrograph shows the vascular system of a developing chicken embryo, two days after fertilization. Injecting fluorescent dextran revealed the entire vasculature used by the embryo to feed itself from the rich yolk inside the egg.

    source

    photo credit to VINCENT PASQUEE, UNIVERSITY OF CAMBRIDGE

    (via mucholderthen)

    — 9 months ago with 135 notes
    #biology  #science 
    science-junkie:

Can plastic be made from algae?
Algae are an interesting natural resource because they proliferate quickly. They are not impinging on food production. And they need nothing but sunlight and a bit of waste water to grow on. Scientists working for theSPLASH research project, funded by the EU, are now addressing the challenge of making high-quality, affordable plastics from algae. They need to demonstrate that this new type of bioplastic —namely used to produce polyesters and polyolefins— can be of the same quality as traditional plastic. And they need to show whether it can be produced in an economically viable way.
“We need a new species of algae which not only produces the right kind of hydrocarbons and sugars, but also does it fast,” explains says Maria Barbosa, SPLASH’s scientific coordinator and a researcher at Wageningen UR Food & Biobased Research unit, in the Netherlands. She believes that genetic engineering can provide the solution to this problem. “Believe it or not, that’s the easy part,” she adds. But then “we need a way to ‘milk’ the new algae, to take the desired components from the broth without killing it,” she points out. However, this is the challenge that remains to be addressed.
Read more

    science-junkie:

    Can plastic be made from algae?

    Algae are an interesting natural resource because they proliferate quickly. They are not impinging on food production. And they need nothing but sunlight and a bit of waste water to grow on. Scientists working for theSPLASH research project, funded by the EU, are now addressing the challenge of making high-quality, affordable plastics from algae. They need to demonstrate that this new type of bioplastic —namely used to produce polyesters and polyolefins— can be of the same quality as traditional plastic. And they need to show whether it can be produced in an economically viable way.

    “We need a new species of algae which not only produces the right kind of hydrocarbons and sugars, but also does it fast,” explains says Maria Barbosa, SPLASH’s scientific coordinator and a researcher at Wageningen UR Food & Biobased Research unit, in the Netherlands. She believes that genetic engineering can provide the solution to this problem. “Believe it or not, that’s the easy part,” she adds. But then “we need a way to ‘milk’ the new algae, to take the desired components from the broth without killing it,” she points out. However, this is the challenge that remains to be addressed.

    Read more

    (via thescienceofreality)

    — 9 months ago with 419 notes
    #science  #biology 
    jtotheizzoe:

 Fancy painting a picture using bacteria (like legendary microbiologist Alexander Fleming used to do)? Then you should check out these C-MOULD: living paints from Exploring the Invisible.

    jtotheizzoe:

    Fancy painting a picture using bacteria (like legendary microbiologist Alexander Fleming used to do)? Then you should check out these C-MOULD: living paints from Exploring the Invisible.

    (via npr)

    — 9 months ago with 4733 notes
    #science  #colors  #biology 

    biomedicalephemera:

    Top: Uterine lining at 5 1/2 months, displaying thin maternal separation from fetus, and high level of placental implantation
    Center: Relation of placenta to uterus at 5 weeks and 8.5 months
    Bottom: Major arteries and veins of the placenta

    Did you know that the placenta is a temporary organ that’s actually created by the fetus, and not the woman?

    The human female is a curious creature; like our close great ape cousins, but unlike almost all other mammals, they build up a thick barrier in the uterine wall, to protect against any potential embryo that might implant itself. When there’s no embryo implantation, the thickened wall is shed, in the process known as menstruation.

    The thing is, most mammals don’t menstruate. They go into heat, and occasionally shed uterine lining (if the uterus is scratched, or an egg tries to implant but fails, for example), but there’s no regular cycle of bloody discharge relating to breeding. This is because other mammals go through triggered decidualization (developing a uterine lining only when a fertilized egg begins to implant itself), while the great apes (and a couple other convergently evolved families, including bats) experience spontaneous decidualization, where they develop a thick uterine lining during every ovulation, before an egg can even attempt to implant itself.

    Why the different linings? Well, it turns out that there are three types of mammal placentas (remember, placentas are developed by the embryo/fetus, not the mother):

    1. Epitheliochordal, which is completely superficial, and does not connect in any significant way to the mother’s body. The endometrial epithelium, connective tissue, and uterine epithelium are all preserved and undisturbed in the mother. The fetus is separated from the mother by three layers of tissue. Nutrients and waste are delivered and eliminated through diffusion, rather than direct connection. This group includes equids, swine, and ruminants.
    2. Endotheliochordal, which is slightly more invasive to the mother, only preserves the uterine epithelium. Nutrients and waste are not exchanged through direct connection to the mother, but the placenta only leaves one layer of tissue between it and the mother. This group includes cats and dogs.
    3. Hemochorial is the most invasive form of placenta in the animal kingdom. The embryo directly hooks itself up to the host (mother’s) blood flow, and leaves no tissue layers between the female and the placenta. This allows much more efficient nutrient transfer to the embryo or fetus, but is also potentially the most harmful to the female since the embryo attaches itself so securely to the uterine wall. The female must develop preemptive measures (a thickened uterine lining) to protect herself from a life-form that is literally driven to take all of the nutrients it needs to develop, and which has adapted to connect itself directly to the host. This group includes elephant shrews, most bats, and most primates.

    Interested in more about the science behind reproduction and how amazingly efficient the human embryo is at sucking its host clean, just to obtain its needed resources for development?

    PZ Meyers at Pharyngula has an understandable explanation of the article I referenced for this post.

    There is also a great site by R. Bowen about the pathophysiology of the reproductive system.

    An American Text-Book of Obstetrics for Practitioners and Students. Edited by Richard C. Norris, 1895.

    (via talesofscienceandlove)

    — 10 months ago with 707 notes
    #science  #biology 
    tapejarascience:

via uniquedaily
‘Spider skin at 12,000 magnification’
This SEM image of spider skin was taken  by María Carbajo of the Electron Microscopy Unit at the University of Extremadura.
You can clearly see a follicle, hairs, and brochosomes from a preyed-upon leafhopper (the yellow balls).
It won her FEI’s 2012 photography competition (FEI is a microscopy technologies manufacturer). You can find links to other entrants’ photos here.
Featured here

Hey, look at this, from The University of Extremadura… the Spanish centers are not often shown in here, so… YAY!

    tapejarascience:

    via uniquedaily

    ‘Spider skin at 12,000 magnification’

    This SEM image of spider skin was taken  by María Carbajo of the Electron Microscopy Unit at the University of Extremadura.

    You can clearly see a follicle, hairs, and brochosomes from a preyed-upon leafhopper (the yellow balls).

    It won her FEI’s 2012 photography competition (FEI is a microscopy technologies manufacturer). You can find links to other entrants’ photos here.

    Featured here

    Hey, look at this, from The University of Extremadura… the Spanish centers are not often shown in here, so… YAY!

    (via talesofscienceandlove)

    — 10 months ago with 305 notes
    #science  #biology  #spain 
    ohyeahdevelopmentalbiology:

raptinawe:

This confocal micrograph shows stage V–VI oocytes (800–1000 micron diameter) of an African clawed frog (Xenopus laevis), a model organism used in cell and developmental biology research. Each oocyte is surrounded by thousands of follicle cells, shown in the image by staining DNA blue. Blood vessels, which provide oxygen to the oocyte and follicle cells, are shown in red. The ovary of each adult female Xenopus laevis contains up to 20 000 oocytes. Mature Xenopus laevis oocytes are approximately 1.2 mm in diameter, much larger than the eggs of many other species. (Photo by Vincent Pasque, University of Cambridge/Wellcome Images)(via Up Close: 2012 Wellcome Image Awards)

    ohyeahdevelopmentalbiology:

    raptinawe:

    This confocal micrograph shows stage V–VI oocytes (800–1000 micron diameter) of an African clawed frog (Xenopus laevis), a model organism used in cell and developmental biology research. Each oocyte is surrounded by thousands of follicle cells, shown in the image by staining DNA blue. Blood vessels, which provide oxygen to the oocyte and follicle cells, are shown in red. The ovary of each adult female Xenopus laevis contains up to 20 000 oocytes. Mature Xenopus laevis oocytes are approximately 1.2 mm in diameter, much larger than the eggs of many other species. (Photo by Vincent Pasque, University of Cambridge/Wellcome Images)

    (via Up Close: 2012 Wellcome Image Awards)

    (via scientificthought)

    — 11 months ago with 99 notes
    #science  #biology  #photography 
    heythereuniverse:

DNA: Celebrate the unknowns | Philip Ball
On the 60th anniversary of the double helix, we should admit that we don’t fully understand how evolution works at the molecular level, suggests Philip Ball.
This week’s diamond jubilee of the discovery of DNA’s molecular structure rightly celebrates how Francis Crick, James Watson and their collaborators launched the ‘genomic age’ by revealing how hereditary information is encoded in the double helix. Yet the conventional narrative — in which their 1953 Nature paper led inexorably to the Human Genome Project and the dawn of personalized medicine — is as misleading as the popular narrative of gene function itself, in which the DNA sequence is translated into proteins and ultimately into an organism’s observable characteristics, or phenotype.
Sixty years on, the very definition of ‘gene’ is hotly debated. We do not know what most of our DNA does, nor how, or to what extent it governs traits. In other words, we do not fully understand how evolution works at the molecular level.
That sounds to me like an extraordinarily exciting state of affairs, comparable perhaps to the disruptive discovery in cosmology in 1998 that the expansion of the Universe is accelerating rather than decelerating, as astronomers had believed since the late 1920s. Yet, while specialists debate what the latest findings mean, the rhetoric of popular discussions of DNA, genomics and evolution remains largely unchanged, and the public continues to be fed assurances that DNA is as solipsistic a blueprint as ever.
[Read more]

    heythereuniverse:

    DNA: Celebrate the unknowns | Philip Ball

    On the 60th anniversary of the double helix, we should admit that we don’t fully understand how evolution works at the molecular level, suggests Philip Ball.

    This week’s diamond jubilee of the discovery of DNA’s molecular structure rightly celebrates how Francis Crick, James Watson and their collaborators launched the ‘genomic age’ by revealing how hereditary information is encoded in the double helix. Yet the conventional narrative — in which their 1953 Nature paper led inexorably to the Human Genome Project and the dawn of personalized medicine — is as misleading as the popular narrative of gene function itself, in which the DNA sequence is translated into proteins and ultimately into an organism’s observable characteristics, or phenotype.

    Sixty years on, the very definition of ‘gene’ is hotly debated. We do not know what most of our DNA does, nor how, or to what extent it governs traits. In other words, we do not fully understand how evolution works at the molecular level.

    That sounds to me like an extraordinarily exciting state of affairs, comparable perhaps to the disruptive discovery in cosmology in 1998 that the expansion of the Universe is accelerating rather than decelerating, as astronomers had believed since the late 1920s. Yet, while specialists debate what the latest findings mean, the rhetoric of popular discussions of DNA, genomics and evolution remains largely unchanged, and the public continues to be fed assurances that DNA is as solipsistic a blueprint as ever.

    [Read more]

    (via freshphotons)

    — 11 months ago with 495 notes
    #science  #biology  #philosophy 
    oldmanyellsatcloud:

wildcat2030:

Hoping to give new meaning to the term “natural light,” a small group of biotechnology hobbyists and entrepreneurs has started a project to develop plants that glow, potentially leading the way for trees that can replace electric streetlamps and potted flowers luminous enough to read by.
The project, which will use a sophisticated form of genetic engineering called synthetic biology, is attracting attention not only for its audacious goal, but for how it is being carried out.
Rather than being the work of a corporation or an academic laboratory, it will be done by a small group of hobbyist scientists in one of the growing number of communal laboratories springing up around the nation as biotechnology becomes cheap enough to give rise to a do-it-yourself movement.
The project is also being financed in a D.I.Y. sort of way: It has attracted more than $250,000 in pledges from about 4,500 donors in about two weeks on the Web site Kickstarter. (via A Dream of Glowing Trees Is Assailed for Gene-Tinkering - NYTimes.com)

Reblogged before, but worth an update: These guys got more than funded, with still 28 days to go. Not bad for a DIY biotech lab.

    oldmanyellsatcloud:

    wildcat2030:

    Hoping to give new meaning to the term “natural light,” a small group of biotechnology hobbyists and entrepreneurs has started a project to develop plants that glow, potentially leading the way for trees that can replace electric streetlamps and potted flowers luminous enough to read by.

    The project, which will use a sophisticated form of genetic engineering called synthetic biology, is attracting attention not only for its audacious goal, but for how it is being carried out.

    Rather than being the work of a corporation or an academic laboratory, it will be done by a small group of hobbyist scientists in one of the growing number of communal laboratories springing up around the nation as biotechnology becomes cheap enough to give rise to a do-it-yourself movement.

    The project is also being financed in a D.I.Y. sort of way: It has attracted more than $250,000 in pledges from about 4,500 donors in about two weeks on the Web site Kickstarter. (via A Dream of Glowing Trees Is Assailed for Gene-Tinkering - NYTimes.com)

    Reblogged before, but worth an update: These guys got more than funded, with still 28 days to go. Not bad for a DIY biotech lab.

    — 11 months ago with 5241 notes
    #science  #biology 
    biocanvas:

A confocal view of cells expressing heat shock proteins that are localized to intermediate filaments.
Image by Dr. Alan R. Prescott, University of Dundee.

    biocanvas:

    A confocal view of cells expressing heat shock proteins that are localized to intermediate filaments.

    Image by Dr. Alan R. Prescott, University of Dundee.

    (via biocanvas)

    — 2 years ago with 7154 notes
    #biology  #science  #colors 
    scipsy:

Aster of actin

This specimen is an aster of artificial filopodia assembled in vitro from purified components. Photo was taken in old Leob building at MBL, 07/2009. Chen Wei (via)

    scipsy:

    Aster of actin

    This specimen is an aster of artificial filopodia assembled in vitro from purified components. Photo was taken in old Leob building at MBL, 07/2009. Chen Wei (via)

    — 2 years ago with 47 notes
    #science  #photography  #biology