Science topic
Fossils - Science topic
Remains, impressions, or traces of animals or plants of past geological times which have been preserved in the earth's crust.
Publications related to Fossils (10,000)
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One of the biggest and most important reasons for the removal fossil cars from the global car markets is their pollution, which has caused air pollution. But the use of electric cars does not have these many problems and has led to the increasing popularity of electric cars. In most of the articles, the charging rate is considered continuous, while...
Increasing environmental concerns necessitate the urgent investigation of alternative, sustainable resources as replacement for fossil fuel-derived bitumen; the primary material used for road construction. One of the promising approaches is the use of bio-based alternatives as partial or full bitumen substitutes in asphalt mixtures. Currently, the...
Growing demand for air travel and limited scalable solutions pose significant challenges to the mitigation of aviation’s climate change impact. Direct air capture (DAC) may gain prominence due to its versatile applications for either carbon removal (direct air carbon capture and storage, DACCS) or synthetic fuel production (direct air carbon captur...
Realizamos una revisión de los mamíferos que habitaron entre el Oligoceno y el Pleistoceno (entre 33,9 millones de años y 11.700 años) en la provincia de Santa Elena, en la Costa de Ecuador. En la provincia se realizaron varios estudios de su fauna prehistórica, desde 1892 hasta la actualidad, con periodos irregulares de investigación a lo largo de...
Ecdysozoan worms (Nematoida + Scalidophora) are typified by disparate grades of neural organization reflecting a complex evolutionary history. The fossil record offers a unique opportunity to reconstruct the early character evolution of the nervous system via the exceptional preservation of extinct representatives. We focus on their nervous system...
In diesem Beitrag der Scientist for Future, Regionalgruppe München, auf dem Umwelttag des Gymnaiums Ismaning werden die Entstehung der Future-Bewegung sowie die Gründung der Scientists for Future dargestellt. Das IPCC, einer Unterorganisation der UN, fasst seit 1990 die wissenschaftlichen Erkenntnisse zum Thema 'Klimawandel' zusammen. Dies bildete...
Boletín de la Asociación Argentina de Malacología, 14(2)
ISSN 2314-2219
Este artigo realiza uma revisão sistemática da literatura para investigar o papel dos empreendedores institucionais (EI) na transição sociotécnica do biometano, uma fonte renovável análoga ao gás natural de origem fóssil. Utilizando palavras-chave e operadores booleanos em bases de periódicos, identificamos 64 artigos, dos quais 20 foram selecionad...
Paleoenvironmental preferences for Cretaceous dinosaurs at a regional scale have been mainly assessed in North America. In south-western Europe, the dinosaur-bearing formations ranging the late Campanian to the latest Maastrichtian encompass coastal and lowland environments that produced hundreds of fossil localities with evidence of titanosaurian...
The increasing availability of electrical energy generated from clean, low‐carbon, renewable sources like solar and wind power is paving the way for a more sustainable future. This has resulted in a growing trend in the chemical industry to increase the share of electricity use in chemical processes, particularly catalytic ones. This shift towards...
The cleavage and functionalization of carbon‐carbon bonds are crucial for the reconstruction and upgrading of organic matrices, particularly in the valorization of biomass, plastics, and fossil resources. However, the inherent kinetic inertness and thermodynamic stability of C‐C σ bonds make this process challenging. Herein, we fabricated a glucose...
Zoraptera is a small insect order with less than 50 described species from mostly tropical and subtropical regions of the World. The current system of extant Zoraptera is based on the results of molecular phylogeny combined with the morphology of male genitalia, and supplemented by the characters on the male abdomen and a number of metatibial spurs...
We present a unified methodology for reconstructing deep-time evolutionary histories by fusing partial differential equations (PDEs), stochastic PDEs (SPDEs), and Bayesian inference. Starting with a deterministic reaction-diffusion model, we embed fossil calibrations as interior constraints and leverage mini-batch training of physics-informed neura...
Fossil fuel subsidy reform(s) support the deployment of low‐carbon technologies, yet fossil fuel subsidies remain stubbornly high, while money allocated by governments to renewable energy continues to grow. In the transport sector, this tension is observed between biofuels that still rely on national policies and gasoline/diesel subsidies. Using a...
Supernumerary teeth are an uncommon feature in wild mammalian carnivores. We report a Leopardus pardalis specimen with a well-developed second lower molar in both mandibular rami. This is the first record of this tooth in this taxon, for both living and fossil specimens. The biological and evolutionary implications are discussed in addition to comp...
![Influence of [Nd] : [Mg] ratio on polymyrcene properties at 50 °C (My1–My4)](publication/387855104/figure/fig2/AS:11431281302673941@1736442127213/Influence-of-NdMg-ratio-on-polymyrcene-properties-at-50-C-My1-My4_Q320.jpg)
The development of materials from renewable resources has been increasing, intending to reduce the consumption of fossil sources, with terpenes being one of the main families that reduce the consumption of isoprene. The study of the binary catalytic system neodymium versatate/dibutyl magnesium (NdV3/Mg(n-Bu)2), for the coordination homopolymerizati...
Situado en la localidad de Tamajón (Guadalajara, España), el Centro
de Interpretación Paleontológica y Arqueológica de Tamajón (CIPAT) surge
como una iniciativa para dar a conocer el valioso patrimonio descubierto
en la Sierra Norte de Guadalajara. El Centro dispone de 3 áreas: el Área
Paleontológica, con una exposición dedicada a los fósiles del C...
A alfabetização científica pressupõe uma problematização crítica dos conhecimentos, científicos ou não. Visa estimular a capacidade de interpretar fenômenos ao tempo que habilita o aluno à aplicação dos conhecimentos na resolução de problemas e tomada de decisão. O objetivo do presente trabalho foi desenvolver nos alunos a capacidade de leitura crí...
The fixation of atmospheric nitrogen as ammonia is among the most important industrial processes in existence, as ammonia is the base compound for all nitrogenous fertilisers and-chemicals. The global production of near 150 megatons of reactive nitrogen per year relies entirely on finite fossil resources and depends on natural gas to achieve its mi...
Noeggerathiales were until recently a group of plants with uncertain systematic position that existed in the Carboniferous and Permian times. Recent discoveries classify them as heterosporous progymnosperms. Despite the discovery of additional specimens, the group still remains highly artificial because their reproductive organs are rarely preserve...
This paper describes variations in the shape of the muscular crests of the parasphenoid body in
Early Triassic capitosauromorphs from the East European Platform and estimates their frequency in individual
age samples in a number of species. These structures have been compared with their counterparts in modern
tailed and tailless amphibians. The res...
Podocarpus pollen morphology is shaped by both phylogenetic history and the environment. We analyzed the relationship between pollen traits quantified using deep learning and environmental factors within a comparative phylogenetic framework.
● We investigated the influence of mean annual temperature, annual precipitation, altitude, and solar radiat...
Three nuchal bones from peat deposits in the lower Wacissa River represent Late
Pleistocene–Holocene records of the spotted turtle, Clemmys guttata. These are the first fossils of
this rare species from Florida and the first verifiable records, fossil or living, from the Aucilla
River Drainage Basin. The new records and the absence of older fossils...
Macroevolutionary studies using the fossil record have provided valuable information about the evolutionary history of mammals, helping us to understand some of the processes underlying shifts in diversification dynamics. Yet, most studies on mammal diversification have focused on the Northern Hemisphere. The general view that the quality of the fo...
Dovžanova soteska (Dovžan Gorge) is one of the most interesting geological sites in Slovenia. The Tržiška Bistrica Creek, with the aid of tectonic forces, has carved deep into the Karavanke Mountains, revealing a long cross-section of Late Paleozoic rocks. It is one of the most fossil-rich areas in the Southern Alps and has high scientific and hist...
Currently industrial oil is considered as a consumable material and used in a linear way: it gets discarded and replaced with new oil when the oil degrades and often loses its desired properties. This is unsustainable and can have hidden, indirect costs relating to productivity and product quality caused by wear on machinery due to degraded industr...
Fossil energy is running out faster and faster these days, and pollution in the environment is becoming a major issue. There are many opportunities for the growth of clean energy, particularly solar energy, under the "two-carbon" strategy. The production of solar electricity offers the benefits of plentiful resources as well as clean and environmen...
Pesatnya perkembangaan penyimpanan energi terutama teknologi baterai membuat inovasi pada kendaraan. Perkembangan transportasi beralih dari kendaraan berbahan bakar fosil ke energi listrik dimana memiliki keuntungan ramah lingkungan dan tidak bising. Namun pada daya terima masyarakat Indonesia berbeda-beda ada yang positif dan negatif. Dinamika di...
The recent advances in sequencing technologies, phylogenomics and divergence dating methods call for an integrative review of the current state of Hymenoptera systematics. We here explore the impact of these latest developments on the Hymenoptera phylogeny and our understanding of the timing of Hymenoptera evolution, while identifying the current m...
Some galaxy clusters contain non-thermal synchrotron emitting plasma that permeate the intracluster medium (ICM). The spectral properties of this radio emission are not well characterised at decametre wavelengths ( ν < 30 MHz), primarily due to the severe corrupting effects of the ionosphere. Using a recently developed calibration strategy, we pres...
Nomenclature and distribution information is provided for 343 species-level fossil taxa of Chironomidae. Details are given for 190 species-level taxa (151 described and 39 undescribed) in 107 genera (46 fossil and 61 extant) in ten of the thirteen recognized subfamilies. Because of uncertain subfamily assignment an additional 153 species-level foss...
Saber-toothed cats dominated latest Pliocene to Early Pleistocene ecosystems in the Old World, potentially competing with early hominins for food resources. However, the Pleistocene fossil records of the medium-sized Megantereon are often fragmented and scarce, leading to contentious debates among scholars regarding its evolutionary history.
Previo...
Hydrogen serves as an energy source and represents an important cornerstone for achieving the goal of maintaining a level of zero-carbon-dioxide emissions in industry production processes. Our analysis is based on the computable general equilibrium framework and focuses on a partial switch to hydrogen used in production in northern Germany, particu...
Energi nuklir adalah sumber energi yang dihasilkan dari reaksi inti atom melalui proses fisi atau fusi nuklir. Artikel ini membahas berbagai jenis energi nuklir dan pemanfaatannya dalam kehidupan, termasuk di sektor energi, kesehatan, industri, pertanian, dan penelitian. Meskipun menawarkan keuntungan seperti efisiensi tinggi dan emisi karbon renda...
![Chemical synthesis of lignin model phenolic resin (Be adapted from [30])](publication/387757755/figure/fig2/AS:11431281301660322@1736219526289/Chemical-synthesis-of-lignin-model-phenolic-resin-Be-adapted-from-30_Q320.jpg)
![a Lederer-Manasse reaction. b Tollens reaction. c Prings reaction [44]....](publication/387757755/figure/fig4/AS:11431281301724693@1736219526791/a-Lederer-Manasse-reaction-b-Tollens-reaction-c-Prings-reaction-44-d-TGA-and-DTG_Q320.jpg)
Although fossil-based resin adhesives are widely used because of their good bonding properties and low cost, their environmental pollution and nonrenewability are contrary to sustainable development. Lignin, a natural phenolic polymer with functional groups such as hydroxyl, carboxyl and aldehyde groups, can replace fossil raw materials such as phe...
This contribution contains the three-dimensional models of the most informative fossil material attributed to both Peratherium musivum Gernelle, 2024, and Peratherium maximum (Crochet, 1979), respectively from early and middle early Eocene French localities. These specimens, which document the emergence of the relatively large peratheriines, were a...
Understanding ancient organisms and their interactions with paleoenvironments through the study of body fossils is a central tenet of paleontology. Advances in digital image capture now allow for efficient and accurate documentation, curation, and interrogation of fossil forms and structures in two and three dimensions, extending from microfossils...
In response to climate change, the reduction of carbon emissions during agricultural production has garnered increasing global focus. This study takes high-standard farmland construction (HSFC) implemented in 2011 as the standard natural experiment and adopts the continuous differences-in-differences (DID) model to explore the impact and internal m...
Silica nanoparticles (Si-NPs) are increasingly prevalent in various industrial applications, potentially impacting aquaculture. The study investigated the effects of dietary Si-NPs on growth performance and its repercussions on muscle compositions in Stinging catfish, Heteropneustes fossilis (H. fossilis). In this study, four isonitrogenous diets c...
Silica nanoparticles (Si-NPs) are increasingly prevalent in various industrial applications, potentially impacting aquaculture. The study investigated the effects of dietary Si-NPs on growth performance and its repercussions on muscle compositions in Stinging catfish, Heteropneustes fossilis (H. fossilis). In this study, four isonitrogenous diets c...
Bajo la premisa de que la permineralización inducida por sílice durante la formación de fósiles silicatados comporta la estabilización de fases intermedias de estructura zeolítica, planteamos la reproducción de este proceso natural mediante la síntesis de materiales zeolíticos en un sistema reactivo hidrotermal isotérmico (140 ºC), con NaOH, a part...
La captura y almacenamiento de dióxido de carbono (CO2) en fitoplancton se perfila como una alternativa natural y efectiva para combatir el cambio climático. Este microorganismo absorbe el CO2 del aire a través de la fotosíntesis, convirtiéndolo en una herramienta valiosa en la mitigación del cambio climático. La investigación actual busca validar...
Today's life cannot be separated from electricity, starting from people living in villages and living in big cities. This underlies the use of solar power plants (PLTS) as a new renewable electricity source to replace fossil energy sources that have limited amounts and pollution that pollutes the environment. Solar cells (solar cells) as PLTS units...
Language growth and flexibility of use are related to how productive the processes of word formation are, particularly the process of derivation manifested by the use of many suffixes. As productivity is a gradable property, i.e., not uniform, suffixes vary in their productivity. This study aims at measuring the productivity of suffixes used in ver...
The genus Provanna (belonging to Superfamily Abyssochrysoidea) is a group of globally distributed gastropods commonly discovered in the deep-sea chemosynthetic environments. To date it is composed of 29 extant and nine fossil species and all of them seem to be endemic to vents, seeps or organic falls. Despite the increasing interest in cold seeps i...
O carvão vegetal é um produto sustentável e uma excelente fonte de energia alternativa aos combustíveis fósseis, estando presente em vários setores da indústria e da sociedade brasileira. O objetivo desse trabalho foi classi昀椀car clones de Eucalyptus urophylla mais indicados para a produção de carvão vegetal baseando-se nos valores médios e na vari...
This study is concerned with a thick succession of polymictic conglomerates which is exposed in the Chwarta, Mawat and Qandil areas inside the Imbricated and Thrust Zone. It is about 1500 m thick and comprises pebbles of boulders of chert, limestone and metamorphic rocks which was previously considered as unit three of the Red Bed Series of the Eoc...
Translation and language teaching techniques which take language learners’ first language (L1) as point of reference for teaching the second language (L2) have been long discouraged on the ground that these teaching techniques would end in the fossilization of L2 structure forms in the learner’s Interlanguage system. However, in recent years, the s...
Production of aluminium, one of the most energy-intensive metals, is challenging for mitigation efforts. Regional mitigation strategies often neglect the emissions patterns of individual smelters and fail to guide aluminium producers’ efforts to reduce GHG emissions. Here we build a global aluminium GHG emissions inventory (CEADs-AGE), which includ...
The evolution of the economy has always been dependent on technological progress. Successive inventions have made it possible to keep socio-economic progress moving forward, achieved, as can now be seen, at the expense of damage to the environment and growing external costs. The concept of the circular (bio)economy has the potential to become the n...
During 2024, an intensive Δ14CO2 flask sampling campaign is being conducted at 12 stations across Europe as part of the CO2MVS Research on Supplementary Observations (CORSO) project. These Δ14CO2 samples, combined with CO2 atmospheric measurements, aim to improve fossil CO2 emission estimates across Europe through inverse modeling. In this study, w...
S'efforçant à devenir le premier continent climatiquement neutre, l’Union européenne a décidé de supprimer progressivement toute production de moteurs à combustion interne d’ici 2035, obligeant l’ensemble de son écosystème industriel du transport à basculer vers l’électromobilité. Dans cette perspective, l’Automobile 3.0 (électrique, connectée et a...
Striving to become the first climate-neutral continent, the European Union has decided to phase-out all production of internal combustion engines by 2035, forcing its entire transport industrial ecosystem to switch to electromobility. From this perspective, the Automobile 3.0 (electric, connected and autonomous) is an excellent demonstrator of a do...
VORBEMERKUNGEN DES HERAUSGEBERS: Das bildkünstlerische Werk Walter Werneburgs (1922–1999) wurde 2021 an die Graphische Sammlung der Universität Tübingen übergeben. Seitdem sind, bis Anfang diesen Jahres, alle, über 2.500 Bilder des Künstlers professionell digitalisiert worden: das wollen wir hier mit zwei Beiträgen in CHELYOPS feiern. Anläßlich der...
Indonesia memiliki potensi energi terbarukan cukup besar dengan berbagai macam seperti energi angin, surya, air, dan bioenergi menawarkan keuntungan utama dalam mengurangi polusi udara dan memiliki ketersediaan yang melimpah. Pembangkit Listrik Tenaga Surya Atap (PLTS) dapat menjadi solusi yang efektif untuk memenuhi kebutuhan energi yang terus ber...
Bu çalışmada enerji tüketimi, yaşam beklentisi ve ekonomik büyüme arasındaki ilişki incelenmiştir. İnceleme Türkiye örneği üzerinden gerçekleştirilmiş, 1990-2022 yılları arasındaki veriler kullanılarak ARDL sınır testi uygulanmıştır. Modelin bağımlı değişkeni ekonomik büyümedir. Bağımsız değişkenler ise yaşam beklentisi ve enerji tüketimidir. Enerj...
Face à l’urgence de transformer les systèmes agri-alimentaires, leur reterritorialisation, via le développement des circuits courts et des gouvernances locales, émerge comme une alternative plus durable sur le plan environnemental. Pour quantifier ce potentiel, cet article évalue l’impact environnemental du Projet alimentaire Territorial (PAT) de l...
The royal ferns (Osmundales) are a morphologically diverse group of leptosporangiate ferns, the fossil record of which dates back to the Permian. Despite there being numerous described permineralized species, the phylogenetic relationships between extinct species remain contentious. Although several analytical approaches have been applied to infer...
Renewable resources in Indonesia are abundant; however, the community and managers have not been able to utilize them optimally, resulting in a very low trend of renewable energy use in Indonesia. The country still relies on fossil fuels such as coal and petroleum, which are environmentally harmful due to the direct pollution caused by fossil fuel...
In this study, it is aimed to determine the carbon dioxide emission from fossil fuel consumption in wheat production in Sivas province. In the study, the wheat production area, production amount and yield values in Sivas province between 2014-2023 were obtained from Turkish Statistical Institute (TurkStat). As fuel consumption value in wheat produc...
Elodophthalmidae, represented by the sole genus Elodophthalmus Kirejtshuk & Azar, is an extinct beetle family described from Lower Cretaceous Lebanese amber. Elodophthalmidae has been hypothesized to share close affinities with the extant superfamily Scirtoidea, but their exact systematic position remains elusive. Here, we describe a new species of...
Reference/Atıf: Özet CO2 emisyonu, karbon dioksit gazının atmosfere salınması anlamına gelmekte ve fosil yakıtların yanması, endüstriyel süreçler, ormansızlaşma ve tarım gibi insan faaliyetlerinden kaynaklanmaktadır. Artan CO2 seviyeleri, sera etkisi yaratarak dünya genelinde iklim değişikliğine neden olmaktadır. Türkiye hem ulusal hem de uluslarar...
Planthoppers (Hemiptera: Fulgoromorpha) are a species‐rich and globally distributed insect clade with high economic, ecological and evolutionary importance. However, the relationships among planthopper lineages and families remain unclear. Previous efforts based on inconsistent morphological traits, a few genes or limited sampling often resulted in...
Dünya üzerinde insanoğlunun enerjiye ihtiyacı gün geçtikçe artmaktadır. Fosil yakıtların artık bu ihtiyacı karşılayamaması ve zamanla tükenmesiyle bir sorunu ortaya çıkacaktır. Bu nedenle insanoğlu fosil yakıtların çevreye verdiği zararı azaltmak için ve sürdürülebilir bir enerji kaynağı için alternatif enerji kaynaklarına yönelmiştir. Ülkelerin en...
For the first time, a detailed ichnological analysis has been carried out on the Paleozoic terrains of the Eastern Jebilet, a Hercynian mountain range (north of Marrakech-Morocco). The upper Visean sediments at Kodiat Oulad Abid and Kodiat Sidi Boumedaine are dominated by sandstone facies, conglomeratic facies and schist facies. Some eight fossil t...
Hızla büyüyen ekonomileri ve nüfuslarıyla BRICS-T (Brezilya, Rusya, Hindistan, Çin, Güney Afrika ve Türkiye)ülkelerinin enerjiye olan ihtiyacı gün geçtikçe artmaktadır. Bu ihtiyacı gidermek için uygulayacakları enerji politikaları, söz konusu ülkelerin küresel güç dengelerindeki yerlerini belirlemede kritik rol oynayacaktır. Bu bağlamda BRICS-T ülk...
Ostracods (Crustacea, Ostracoda) from Doñana (SW Spain): an updated checklist, including new records, of Recent and Quaternary non-marine, marine and brackish species in the area. Here we provide an updated list of ostracod taxa (Crustacea, Ostracoda) identified from freshwater, brackish and marine (infralittoral) environments in the 'Doñana Natura...
This research paper focuses on advancing
sustainable transportation in Mississippi through the
adoption and integration of electric vehicles (EVs). It
explores opportunities for state policymakers to
support the growth of electric vehicles by offering
incentives, expanding charging infrastructure, and
promoting renewable energy sources such a...
El sistema económico mundial se basa en un modelo de consumismo y producción que depende en gran medida de los combustibles fósiles y otras prácticas insostenibles. La acción humana, bajo el impulso tecnológico y económico, tiene ahora la capacidad de transformar nuestras condiciones de existencia, o incluso destruirlas. El poder que la tecnocienci...
Tras la campaña de excavación de 2023 en el yacimiento de RuideraLos Villares se ha encontrado un hueso escafoides (RV’23-338) con ciertas características humanas. Mediante un estudio comparativo basado en
medidas clásicas, se comparará el hueso hallado en dicho yacimiento con
diferentes escafoides del registro fósil humano a fin de testar si exist...
This book itself is a calendar of Earth events related to satellite discoveries, launch, disaster events, fossil eruptions etc. from Jan 1 till Dec 31. Have used calendar of 2025. Available on Amazon, Google Books etc.
New highway corridors are being implanted at various scales—local, metropolitan, regional, and interregional—often bypassing existing routes and opening new speculative frontiers for urban land markets. This article periodises the different stages of highway construction in India during the neo-liberal era. It finds how this state-led infrastructur...
Investigation on the fossil leaves collected from Middle Siwalik sediments of Sarkaghat area, in the Sub-Himalayan zone of Himachal Pradesh revealed the presence of four new fossil species belonging to the family Annonaceae. The fossil leaves have been identified with the extant species, Annona reticulate Linn. Polyalthia longifolia (Son.) Thw. P....
A humanidade compartilha a era do Antropoceno. Isto é, a ação antrópica modificou irreversivelmente a era geológica do planeta. Desde a Revolução Industrial, os níveis de dióxido de carbono (CO2) elevaram consideravelmente, paralelo a desmatamentos, poluição, expansão urbana e consumismo infinito em um planeta com recursos finitos, ocasionando ench...