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Data notizia: Fri, 25/02/2022 - 12:45
... biodiversity, an animal that symbolises our continent's forests and is so ingrained in our imagination that it has become part of the ... peoples. although humans have coexisted with the wolf for thousands of years,
the evolutionary history of this iconic predator is ... fragments to establish the precise age of the find
. "before this research, the oldest fossil remains of wolves were those dated to ... and italy (polledrara di cecanibbio, of which, however, a formal description of the find is lacking)," comments raffaele sardella, who led the research team. "this new study has therefore allowed us
to identify the ponte galeria wolf as the oldest fossilised ... https://doi.org/10.1038/s41598-022-06812-5
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raffaele sardella department of earth sciences ...
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Data notizia: Mon, 14/06/2021 - 13:15
... inhabit only equatorial africa and indonesian islands.
"for the first time, it has been possible to study in detail the neuroanatomy of ... https://doi.org/10.1080/08912963.2021.1902999
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alessio iannucci department of earth sciences ...
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Data notizia: Thu, 25/03/2021 - 13:00
... and 69 years,
64% of whom are women, have been recruited for the study to date. 53.7 % of them did not present any adverse events after ...
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Data notizia: Thu, 19/11/2020 - 13:00
... as the molecular clock involved in the regulation of root formation
. specifically, the team of researchers coordinated by raffaele ... feltrinelli giovani" prize by the accademia dei lincei for his studies on the genetic-molecular circuits regulating the correct ... https://doi.org/10.1016/j.cub.2020.10.038
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raffaele dello ioio department of biology and biotechnology ...
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Data notizia: Mon, 14/09/2020 - 12:45
... simulations,
which have been carried out with a high-performance calculation system available to the group of theoretical astrophysics ... that in a time a thousand times shorter than that necessary for the collision of the "mother" galaxies,
the black holes will collide in ...
doi /10.1051/0004-6361/202038674
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roberto capuzzo dolcetta department of physics ...
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Data notizia: Tue, 14/07/2020 - 12:00
... of space, through which proteins and nucleic acids can perform their task effectively. until a few years ago it was believed that cells' ... the cell itself.
moreover, the mechanisms underlying the formation of these organelles, mainly composed of proteins and nucleic acids, ... components, identifying the mechanisms that cause the formation and dissolution of biomolecular condensates under physiological ... the weizmann institute in tel aviv and the universities of oxford and vienna have
genetically engineered yeast cells to produce proteins capable of forming biomolecular
condensates with controllable chemical-physical ... of proteins together with their concentration, control the formation and characteristics of biomolecular condensates." the outcomes of the ... chemical biology journal, represent a fundamental step forward in understanding which are the chemical-physical characteristics of ... of the protein aggregation mechanisms that is necessary for the cells to function but that, if dysfunctional, can cause the onset of ...
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Data notizia: Tue, 03/09/2019 - 15:00
... and other neurodegenerative diseases. it has been working for over thirty years to promote the progress of science, improve patient ... the insurgence of neurodegenerative diseases and alzheimer's foremost. normally, insulin plays a fundamental role in regulating the ...
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Data notizia: Tue, 03/09/2019 - 12:00
... (eukaryotes) the
dna interacts with specific proteins to form a compact nucleoproteic structure called chromatin
that contains genetic information and contributes to regulating its expression. chromatin has two ... genes. some of them show a very large size and are essential for cellular differentiation and development. functional genes in ... https://doi.org/10.1016/j.tig.2019.06.002
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patrizio dimitri "charles darwin" department of biology and ...
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Data notizia: Wed, 06/09/2017 - 22:00
... of psychology of sapienza university - are relevant for the comprehension of intergroup dynamics and the associated physiological ...
Notizia
Data notizia: Thu, 20/06/2024 - 12:00
...
used virtual reality to assess dexterity in performing a motor task
using two different effectors
:
a virtual hand ... being,
the brain recognises the humanoid as strange and foreign,
complicating the recognition process". the tactile stimulus of the ... translates into
less brain processing
and, therefore,
greater dexterity and ease of use
. this evidence may pave the way for new concepts in the development of robotic prostheses. "in the field of ... of this study to improve the prostheses available today
for people who are missing a limb due to amputation", explains viviana betti of ... - doi.org/10.1016/j.isci.2024. 109937
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viviana betti department of psychology, sapienza university of ...
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Data notizia: Mon, 28/02/2022 - 15:45
the speed with which magma forms and rises from the depths of the earth to the surface also depends on its viscosity; therefore, it is of fundamental importance to know this physical property of magmas ... and "tufo giallo napoletano" of 15000 years ago). they, therefore, hypothesised that the mantle source could be at a depth of about 60 km. ... the solchiaro volcanic deposit, from the homonymous volcano formed on procida some 17-19000 years ago,
" say barbara bonechi and ... represent the final stage in the life of magma, from its formation in the earth's interior to its migration towards the surface. the ... an essential role in the eruptive style of a volcano is therefore also given by the density and viscosity of the magma,
knowledge of ... in the modelling of these processes. "it is important for geochemical and seismological models to consider the depth of magma formation and its potential rate of ascent," say the researchers. using the ...
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Data notizia: Wed, 16/09/2020 - 11:30
... according to the red list of the international union for conservation of nature (iucn). the outcomes of the work, published on
... had survived in the wild. since 2006, considerable efforts have been made to reintroduce the species to a second site, in the state ... populated. although conservation actions have slowed the decline, for some of the species included in the study, such as the vaquita (phocoena sinus) of the gulf of california, it may be impossible to prevent extinction in the wild. "the biodiversity crisis is so great that we cannot afford any more failures. understanding which conservation actions have the most ... tip of the iceberg. most species are suffering a dramatic decline and many will risk extinction in the coming decades. it is necessary to ... https://doi.org/10.1101/2020.02.11.943902
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carlo rondinini department of biology and biotechnology "charles ...
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Data notizia: Sat, 12/09/2020 - 12:15
... environment the acquisition of skills and techniques useful for survival began at an early age. today, a new study on the archaeological ... meters thick, which, according to the researchers, probably formed along a river and in marshy environments, cyclically invested by ashes ... dangerous animals." in many levels, there are also prints formed by curvilinear trails with small almond-shaped hollows, the traces left by bivalve ... - "
the pleistocene children entered the water for reasons very similar to those of modern children: to drink, to wash ... funding by sapienza university and the italian ministry of foreign affairs, provides a snapshot of pleistocene childhood and confirms that ...
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margherita mussi department of ancient world studies director of ...
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Data notizia: Fri, 01/09/2023 - 15:30
an important step forward in the
understanding of human evolution comes from a genetic and ... and the university of florence. using an innovative bioinformatics method, called fitcoal, the researchers
examined the complete ... (climate) and palaeoanthropological (fossil)
information that would allow them to trace back to prehistoric periods before the appearance of our species. the results of the study have indeed ... conditions made survival extremely difficult even for our ancestors, bringing them to the brink of extinction. the event would ... collapse detected by the study was indeed found. before about a million years ago there is abundant palaeoanthropological ... we can consider a true last common ancestor, i.e. the human form that spread from africa into eurasia, giving rise to the evolution of ... https://doi.org/10.1101/2021.05.16.444351
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giorgio manzi department of environmental biology ...
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Data notizia: Tue, 18/07/2023 - 09:15
... g-quadruplexes,
the four-stranded helical structures that form in telomeres, with molecules called ligands is an
effective approach to ... interacting g-quadruplex units, known as multimers, can form. in a study coordinated by cristiano de michele from the department of ... of perugia, a new method has been developed to obtain information on the stability of telomeric g-quadruplex multimers.
the results ... between numerical computer results and experiments performed both in our laboratories and in international research centres, ... to the study of g-quadruplexes, but which can also be used for other biophysical systems in the future.
"this study," concludes comez, "represents a significant step forward in our journey, which began several years ago, to understand the ... chem. soc. 2023
doi: 10.1021/jacs.3c04810
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cristiano de michele department of physics ...
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Data notizia: Wed, 13/04/2022 - 17:00
... of the sun, understanding
how supermassive black holes formed and grew in the short period of time after the birth of the universe ... growing black hole in the dusty center of an actively star-forming galaxy,
" says schneider and valiante. "we think gnz7q is a ...
the research group aims to conduct a systematic search for similar sources using high-resolution observational campaigns and to use ... 2022, nature, doi 10.1038/s41586-022-04454-1
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raffaella schneider department of physics ...
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Data notizia: Wed, 01/09/2021 - 11:30
... red panda, which belong to two different families
: the former to the ursid family (like bears), and the latter to the ailuridae family ... species of similar body size, or taxa that are very similar for diet and habitat, but with large differences in size." "our results," says ... evolution in this clade seems to be a rare phenomenon." therefore,
the phenomenon of convergence is less frequent than expected, and this ... doi: https://doi.org/10.1111/evo.14229
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luigi maiorano department of biology and biotechnology "charles ...
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Data notizia: Wed, 21/04/2021 - 12:15
...
, seasonality was found to be an important factor for small reptiles,
which exhibit more pronounced gigantism on islands with ... acting consistently across all vertebrates,
and therefore that they are not single evolutionary events in a few known species, but ...
2021. doi: 10.1038/s41559-021-01426-y
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luca santini department of biology and biotechnology "charles ...
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Data notizia: Tue, 16/06/2020 - 12:30
today, the hyperarid climate of the sahara precludes any form of permanent agriculture. however, the research conducted by the
... shape of the territory tends to keep the water long enough for the farmers to
grow wheat, barley, sorghum and other plants.
the ... end of the neolithic:
climate and environmental changes forced prehistoric human groups to adopt new strategies and change their ... of sapienza university of rome, and by the ministry of foreign affairs and international cooperation (dgsp - vi).
references:
... doi http://dx.doi.org/10.15184/aqy.2020.41 .
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savino di lernia department of ancient world studies ... emilia, revealed the existence of cultivation techniques performed by tuareg people in mountain areas of the sahara desert. the research ...
Notizia
Data notizia: Tue, 07/05/2019 - 13:15
... cells and opto-electronic devices
, tools that transform light into electrical current, in the first case, and devices that ... of this material, a process that is similar to that used for the production of old camera films. these two new studies, coordinated by ... by bismuth (bi3+) replacing the lead (pb2+) in the crystalline structure, which, due to its greater positive charge, gives rise to both superficial formation defects that reduce the short circuit current and to more profound ... is completely inhibited. however, this weakness can be transformed into a strength, as revealed by the results of the second study [2], ... which they were able to
improve the quality of crystalline films
by a judicious exposure to 60-80% relative humidity. the ... a
,
2019 doi: 10.1039/c9ta00715f
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simone meloni department of mechanical and aerospace engineering, ...
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Data notizia: Thu, 18/04/2019 - 12:00
... university after being awarded by the
ministerial program for young researchers rita levi montalcini
.
references:
geodetic ... doi: https://doi.org/10.1029/2018gl081135
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antonio genova department of mechanical and aerospace engineering, ...
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Data notizia: Tue, 09/04/2019 - 14:15
... and the university of saragozza, has unveiled
new information on the consequences of the great climactic changes
undergone by ... their habitats and understand the environmental transformations that took place during the pleistocene. the fossils, which were ... in hard times, even consuming plants that were not optimal for their usual diet. the research also sheds light on the
drastic increase ...
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raffaele sardella department of earth sciences, sapienza ... by analysing fossil teeth. the results, which provide new information on the consequences of the great climactic changes, have been ...
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Data notizia: Mon, 25/03/2019 - 12:45
... sessions
with a personal trainer in the gym, once a year for 3 years. the participants in the standard care group received only generic ... and muscular fitness over time (that is the ability to perform aerobic and strength activities, respectively), both of which are known to ... 2019. doi: 10.1001/jama.2019.0922
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giuseppe pugliese department of clinical and molecular medicine, ...
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Data notizia: Tue, 06/11/2018 - 15:00
... of naples, supported by the airc - italian association for cancer research, has produced interesting results on the treatment of ... the last 10 years. until a few years ago, the metastatic form was considered a disease difficult to cure, but fortunately in recent years there have been important successes in the fight ...
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Data notizia: Thu, 16/11/2017 - 13:00
for the first time ever, a research study lead at sapienza university of rome ... control stem cell division and differentiation during organ formation could be particularly useful to collect valuable information also on human stem cell physiology. this has been the starting point ... a molecular mechanism necessary to activate the "transformation" process through which a plant stem cell becomes specialized. this ... development and response. this model allowed to obtain information otherwise achievable only with via long and expensive experiments. ... organ development and growth of plants, and is therefore defined as a morphogen. a crucial role of auxin in controlling cell ...
2017 sep 5. doi: 10.1073/pnas.1705833114.
further information:
sabrina sabatini department of biology and biotechnology charles ...