Toplam 37 içerik listeleniyor
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Building a CRISPR rainbow
CRISPRainbow, a new technology using CRISPR/Cas9 developed by scientists at UMass Medical School, allows researchers to tag and track up to seven different genomic locations in live cells. This labeling system, details of which were published in Nature Biotechnology, will be an invaluable tool for studying the structure of the genome in real time.
https://www.biyologlar.com/building-a-crispr-rainbow-haber-8722 -
UW team stores digital images in DNA -- and retrieves them perfectly
Technology companies routinely build sprawling data centers to store all the baby pictures, financial transactions, funny cat videos and email messages its users hoard. But a new technique developed by University of Washington and Microsoft researchers could shrink the space needed to store digital data that today would fill a Walmart supercenter down to the size of a sugar cube. The team of computer scientists and electrical engineers has detailed one of the first complete systems to encode,...
https://www.biyologlar.com/uw-team-stores-digital-images-in-dna-and-retrieves-them-perfectly-haber-8723 -
Coral reefs in Palau surprisingly resistant to naturally acidified waters
Ocean researchers working on the coral reefs of Palau in 2011 and 2012 made two unexpected discoveries that could provide insight into corals' resistance and resilience to ocean acidification, and aid in the creation of a plan to protect them. The team collected water samples at nine points along a transect that stretched from the open ocean, across the barrier reef, into the lagoon and then into the bays and inlets around the Rock Islands of Palau, in the western Pacific Ocean. With each...
https://www.biyologlar.com/coral-reefs-in-palau-surprisingly-resistant-to-naturally-acidified-waters -
Stem cell breakthrough could set up future transplant therapies
A new method for creating stem cells for the human liver and pancreas, which could enable both cell types to be grown in sufficient quantities for clinical use, has been developed by scientists. Using the technique, researchers have for the first time been able to grow a pure, self-renewing population of stem cells specific to the human foregut, the upper section of the human digestive system. These so-called "Foregut stem cells" could then be developed further to produce liver or pancreatic...
https://www.biyologlar.com/stem-cell-breakthrough-could-set-up-future-transplant-therapies -
Using DNA origami to build nanodevices of the future
Scientists have been studying ways to use synthetic DNA as a building block for smaller and faster devices. DNA has the advantage of being inherently "coded". Each DNA strand is formed of one of four "codes" that can link to only one complementary code each, thus binding two DNA strands together. Scientists are using this inherent coding to manipulate and "fold" DNA to form "origami nanostructures": extremely small two- and three-dimensional shapes that can then be used as construction material...
https://www.biyologlar.com/using-dna-origami-to-build-nanodevices-of-the-future -
Using DNA origami to build nanodevices of the future
Scientists have been studying ways to use synthetic DNA as a building block for smaller and faster devices. DNA has the advantage of being inherently "coded". Each DNA strand is formed of one of four "codes" that can link to only one complementary code each, thus binding two DNA strands together. Scientists are using this inherent coding to manipulate and "fold" DNA to form "origami nanostructures": extremely small two- and three-dimensional shapes that can then be used as construction material...
https://www.biyologlar.com/using-dna-origami-to-build-nanodevices-of-the-future -
Chip-based technology enables reliable direct detection of Ebola virus
A team led by researchers at UC Santa Cruz has developed chip-based technology for reliable detection of Ebola virus and other viral pathogens. The system uses direct optical detection of viral molecules and can be integrated into a simple, portable instrument for use in field situations where rapid, accurate detection of Ebola infections is needed to control outbreaks. Laboratory tests using preparations of Ebola virus and other hemorrhagic fever viruses showed that the system has the...
https://www.biyologlar.com/chip-based-technology-enables-reliable-direct-detection-of-ebola-virus -
Damaged DNA may stall patrolling molecule to initiate repair
Sites where DNA is damaged may cause a molecule that slides along the DNA strand to scan for damage to slow on its patrol, delaying it long enough to recognize and initiate repair. The finding suggests that the delay itself may be the key that allows the protein molecule to find its target, according to researchers at the University of Illinois at Chicago. Usually, the repair protein zips along quickly, says Anjum Ansari, UIC professor of physics and co-principal investigator on the study,...
https://www.biyologlar.com/damaged-dna-may-stall-patrolling-molecule-to-initiate-repair -
In a role reversal, RNAs proofread themselves
Cold Spring Harbor, NY - Building a protein is a lot like a game of telephone: information is passed along from one messenger to another, creating the potential for errors every step of the way. There are separate, specialized enzymatic machines that proofread at each step, ensuring that the instructions encoded in our DNA are faithfully translated into proteins. Scientists at Cold Spring Harbor Laboratory (CSHL) have uncovered a new quality control mechanism along this path, but in a...
https://www.biyologlar.com/in-a-role-reversal-rnas-proofread-themselves -
Scientists develop mesh that captures oil -- but lets water through
The unassuming piece of stainless steel mesh in a lab at The Ohio State University doesn't look like a very big deal, but it could make a big difference for future environmental cleanups. Water passes through the mesh but oil doesn't, thanks to a nearly invisible oil-repelling coating on its surface. In tests, researchers mixed water with oil and poured the mixture onto the mesh. The water filtered through the mesh to land in a beaker below. The oil collected on top of the mesh, and rolled...
https://www.biyologlar.com/scientists-develop-mesh-that-captures-oil-but-lets-water-through -
New study shows parrotfish are critical to coral reef island building
As well as being a beautiful species capable of changing its colour, shape and even gender, new research published today shows that parrotfish, commonly found on healthy coral reefs, can also play a pivotal role in providing the sands necessary to build and maintain coral reef islands. The study, based on work in the Maldives and published in the journal Geology, found that parrotfish produced more than 85% of the new sand-grade sediment on the reefs around these reef islands. Reef islands...
https://www.biyologlar.com/new-study-shows-parrotfish-are-critical-to-coral-reef-island-building -
Novel stem cell line avoids risk of introducing transplanted tumors
Human pluripotent stem cells (hPSC) can become any type of cell in the adult body, offering great potential in disease modeling, drug discovery and creating replacement cells for conditions ranging from cardiovascular to Alzheimer's disease. But that promise comes with a risk: the possibility that transplanted hPSCs might also develop as unwanted tumors. In a new study published November 10, 2015 in the online journal eLIFE, researchers at University of California, San Diego School of Medicine...
https://www.biyologlar.com/novel-stem-cell-line-avoids-risk-of-introducing-transplanted-tumors -
Gene controls regeneration of injured muscle by adult stem cells
A key gene enables the repair of injured muscle throughout life. This is the finding of a study in mice led by researchers at NYU Langone Medical Center and the University of Colorado at Boulder, and published online July 21 in Cell Reports.
https://www.biyologlar.com/gene-controls-regeneration-of-injured-muscle-by-adult-stem-cells -
Embryonic gene Nanog reverses aging in adult stem cells
The images above show, from left to right, functioning stem cells, stem cells no longer functioning due to Hutchinson-Gilford Progeria syndrome (HGPS), and stem cells previously not functioning
https://www.biyologlar.com/embryonic-gene-nanog-reverses-aging-in-adult-stem-cells -
Embryonic gene Nanog reverses aging in adult stem cells
The images above show, from left to right, functioning stem cells, stem cells no longer functioning due to Hutchinson-Gilford Progeria syndrome (HGPS), and stem cells previously not functioning
https://www.biyologlar.com/embryonic-gene-nanog-reverses-aging-in-adult-stem-cells -
Scientists solve mystery behind earthworm digestion
Scientists have discovered how earthworms can digest plant material, such as fallen leaves, that would defeat most other herbivores. Earthworms are responsible for returning the carbon locked inside dead plant material back into the ground. They drag fallen leaves and other plant material down from the surface and eat them, enriching the soil, and they do this in spite of toxic chemicals produced by plants to deter herbivores. The scientists, led by Dr Jake Bundy and Dr Manuel Liebeke from...
https://www.biyologlar.com/scientists-solve-mystery-behind-earthworm-digestion -
DNA research offers clues on cell mutation
A team of researchers from Colorado State University has been studying DNA damage in living cells to learn more about how genetic abnormalities arise. It has long been known that DNA molecules in every cell get constantly damaged by things from the outside environment, like sunlight, cigarette smoke and radiation. However, more recently researchers have discovered that sources from within the cell itself can sometimes be even more damaging. DNA, or deoxyribonucleic acid, is found in the...
https://www.biyologlar.com/dna-research-offers-clues-on-cell-mutation -
DNA research offers clues on cell mutation
A team of researchers from Colorado State University has been studying DNA damage in living cells to learn more about how genetic abnormalities arise. It has long been known that DNA molecules in every cell get constantly damaged by things from the outside environment, like sunlight, cigarette smoke and radiation. However, more recently researchers have discovered that sources from within the cell itself can sometimes be even more damaging. DNA, or deoxyribonucleic acid, is found in the...
https://www.biyologlar.com/dna-research-offers-clues-on-cell-mutation -
The great northern cod comeback
Once an icon of overfishing, mismanagement, and stock decline, the northern Atlantic cod is showing signs of recovery according to new research published today in the Canadian Journal of Fisheries and Aquatic Sciences. This research, led by Dr. George Rose, tracks what is arguably the most important comeback of any fish stock worldwide. Studying the great northern Atlantic cod stock complex off Newfoundland and Labrador, once considered among the largest cod stocks in the world before its...
https://www.biyologlar.com/the-great-northern-cod-comeback -
Nobel laureate, new technologies show how cancer cells protect chromosomes from decay
Protective telomeres are augmented by freely diffusing telomerase.
https://www.biyologlar.com/nobel-laureate-new-technologies-show-how-cancer-cells-protect-chromosomes-from-decay -
Nobel laureate, new technologies show how cancer cells protect chromosomes from decay
Protective telomeres are augmented by freely diffusing telomerase.
https://www.biyologlar.com/nobel-laureate-new-technologies-show-how-cancer-cells-protect-chromosomes-from-decay -
The Institut Pasteur in French Guiana publishes the first complete genome sequence of the Zika virus
Having confirmed the first cases of infection in Suriname then in French Guiana, the Institut Pasteur in French Guiana has sequenced the complete genome of the
https://www.biyologlar.com/the-institut-pasteur-in-french-guiana-publishes-the-first-complete-genome-sequence-of-the-zika-virus -
Bacteria take 'RNA mug shots' of threatening viruses
Scientists from The University of Texas at Austin, the Stanford University School of Medicine and two other institutions have discovered that bacteria have a system that can recognize and disrupt dangerous
https://www.biyologlar.com/bacteria-take-rna-mug-shots-of-threatening-viruses -
Hot processor speeds up UK genome analysis
This is the world's first NGS bioinformatics processor Bio-IT Processor.
https://www.biyologlar.com/hot-processor-speeds-up-uk-genome-analysis -
XXV International Congress of Entomology
ESA is honored to host ICE 2016, the XXV International Congress of Entomology, under the theme Entomology without Borders. The event is expected to bring together the largest delegation of scientists and experts in the history of the discipline, who will meet in exciting, easily-accessible, and affordable Orlando, Florida, USA. Make important connections with entomologists and scientists from around the world. Present to this global audience and compete in global competitions. Participate in...
https://www.biyologlar.com/xxv-international-congress-of-entomology -
Arthropoda (eklembacaklılar)
Bugün; dünyada bilinen hayvan türlerinin yaklaşık 2/3'ni Arthropoda (eklembacaklılar) şubesi oluşturmaktadır. Artropodlar, dünyada yaşayan hayvanlar içinde tür bakımından olduğu gibi, birey sayısı bakımından da en zengin grubu oluşturur. Ayrıca, hayvanlar aleminde en fazla tür çeşitliliğine sahip böcekler (Classis: Insecta) de bu grupta yer almaktadır. Eklembacaklılar şubesinde yer alan Arachnida sınıfı, geniş bir spektruma sahip olup Örümcek (Araneae),...
https://www.biyologlar.com/arthropoda-eklembacaklilar -
GENEL BİYOLOJİ LABORATUAR RAPOR HAZIRLAMA FORMATI
Raporun ismi (Raporun ismi çok uzun olmamalı ve laboratuarı kısaca özetler nitelikte olmalı. İyi bir isim, içinde çalışılan konu ile ilgili anahtar kelimeleri barındıran isimdir.) Raporu hazırlayanın ismi (Raporu hazırlayan kişinin ismi Adı ve Soyadı açık olacak şekilde yazılmalı, kısaltma kullanılmamalıdır. Numara tam yazılmalı varsa email adresi eklenmelidir). Özet (Bir özetin amacı, okuyucunun raporun tamamını okumasının kendisine bir yararı olup...
https://www.biyologlar.com/genel-biyoloji-laboratuar-rapor-hazirlama-formati -
HÜCRE SİKLUSU VE KANSER
Hülya CABADAK Marmara Ün. Tıp Fakültesi, Biyofizik AD, İSTANBUL, TÜRKİYE Anahtar Kelimeler: Hücre siklusu, siklinler, siklin bağımlı kinazlar, tümör baskılayıcı gen, kanser Organizma/organ/doku gelişimi, hücrelerin büyüme ve çoğalmalarını içerdiği gibi hücre ölümlerini de sağlar. Hasarlı dokuların onarımı somatik hücrelerin ve destek dokunun çoğalması ile gerçekleşmektedir1. Hücre büyümesi, farklılaşması ve çoğalmasında rolü olan...
https://www.biyologlar.com/hucre-siklusu-ve-kanser -
DÜNYADAKİ PERFÜZYON OKULLARI
The Society of Great Britian and Ireland Clinic Perfusion : İngiltere ve İrlanda klinik perfüzyonu The Society of Perfusionists 1974 yılında kurulan ve perfüzyon eğitimi veren önemli bir eğitim kurumudur. Okulun ana hedefi perfüzyon teknolojinin ilerlemesini için Klinik Perfuzyonist yetişirmeye yardımcı olmaktır. Okul bünyesinde 380 bilim adamı bulunmaktadır ve hastanelerinde yılda 33000 önemli ameliyat yapılmaktadır. Giriş şartları Eğitimli klinik perfuzyonistin...
https://www.biyologlar.com/dunyadaki-perfuzyon-okullari -
Radyoaktif Kirliliğin Etkileri Nelerdir?
Radyoaktif kirlilik, çok tehlikeli olmakla birlikte günümüzdeki nükleer senaryolar dahilinde büyük bir endişe konusudur. İnsan eliyle ya da doğal olarak, nükleer reaksiyonlar sonucu oluşan radyoaktif yan ürünlerin çevreye veya insanların yerleşim alanlarına yakın dolaylara atılması sonucu radyoaktif kirlilik oluşur.İnsan ürünü radyoaktif atıkların büyük kısmını nükleer güç ve araştırma istasyonları meydana getirmektedir. Bu tesisler, araştırma ya da...
https://www.biyologlar.com/radyoaktif-kirliligin-etkileri-nelerdir -
Kaçkar Dağları Milli Parkı Adrenalini Yüksek, Eşsiz Maceranın Yaşandığı Bir Mekan Haline Geliyor
Orman ve Su İşleri Bakanlığı Doğa Koruma ve Milli Parklar (DKMP) Genel Müdürlüğü, Kaçkar Dağları Milli Parkı’nı adrenalini yüksek, eşsiz maceranın yaşandığı bir mekan haline getiriyor. DKMP Genel Müdürlüğü tarafından doğaseverlerin daha iyi vakit geçirmeleri için planlanan macera parkı projesi için çalışmalar başladı.İhalesi Perşembe Günü YapılacakOrman ve Su İşleri Bakanlığı tarafından 2013 yılında revize edilen Kaçkar Dağları Milli...
https://www.biyologlar.com/kackar-daglari-milli-parki-adrenalini-yuksek-essiz-maceranin-yasandigi-bir-mekan-haline-geliyor -
Tek Bir Gen Sizi Uzun Ya Da Kısa Yapmaz
Jian Yang, "Birlikte ele alındığımızda keşfettiğimiz tüm DNA varyantları, yaklaşık 11 santime kadar olan yükseklik farklarını açıklıyor" diyor. "Bu, yüksekliğin genetik temelinin tek bir gen veya küçük bir grup gen tarafından kontrol edilmediğini gösteriyor . "
https://www.biyologlar.com/tek-bir-gen-sizi-uzun-ya-da-kisa-yapmaz -
Tek Bir Gen Sizi Uzun Ya Da Kısa Yapmaz
Jian Yang, "Birlikte ele alındığımızda keşfettiğimiz tüm DNA varyantları, yaklaşık 11 santime kadar olan yükseklik farklarını açıklıyor" diyor. "Bu, yüksekliğin genetik temelinin tek bir gen veya küçük bir grup gen tarafından kontrol edilmediğini gösteriyor . "
https://www.biyologlar.com/tek-bir-gen-sizi-uzun-ya-da-kisa-yapmaz -
İstiridyelerin İki Farklı Yapışkan Kullandığı Anlaşıldı
Ilıman denizlerde toplu hâlde yaşayan istiridyeler, filogenetik açıdan yumuşakçalar şubesinin yassı solungaçlılar sınıfında yer alan çift kabuklu hayvanlardır. Görsel Telif: Loxahatchee River Center
https://www.biyologlar.com/istiridyelerin-iki-farkli-yapiskan-kullandigi-anlasildi -
Alfabesinde 8 Harf Olan DNA Molekülü Üretildi
Yeni moleküler sisteme Japonca "sekiz harfli DNA" anlamında "haçimoji DNA" adı verildi. Görsel Telif: Millie Georgiadis/ Indiana University School of Medicine
https://www.biyologlar.com/alfabesinde-8-harf-olan-dna-molekulu-uretildi -
Doğal Olanların Tüm Özelliklerini Taşıyan Sentetik Alyuvarlar
Bilim insanları doğal olanlarının özelliklerini taşıyıp, fonksiyonlarını gerçekleştirebilen sentetik kırmızı kan hücreleri geliştirmeyi başardı.
https://www.biyologlar.com/dogal-olanlarin-tum-ozelliklerini-tasiyan-sentetik-alyuvarlar -
İlk Proteinler, Proteinler Olmadan Nasıl Oluşabildi?
İlkel proteinler, protoprotein sekansları acaba nasıl yapılardı? Evrimimizi ve başlangıcını nasıl şekillendirdi? 3.7 milyar yıl önceki protein sekansları yeniden yapılandırıldı.
https://www.biyologlar.com/ilk-proteinler-proteinler-olmadan-nasil-olusabildi