Results 51 to 60 of about 33,937 (251)

SÍNTESE DE OCUPAÇÃO EM ESTRADAS NÃO-OFICIAIS NA AMAZÔNIA BRASILEIRA

open access: yesRevista Brasileira de Cartografia, 2011
O surgimento da Cartografia temática representa a mudança de olhar e pensar o espaço, norteando a passagem da elaboração de mapas antes apenas em nível analítico para uma representação de síntese mais complexa dos aspectos da Paisagem, rompendo com a ...
Wanja Janayna de Miranda Lameira   +2 more
doaj  

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto   +3 more
wiley   +1 more source

Fast watermarking of MPEG-1/2 streams using compressed-domain perceptual embedding and a generalized correlator detector

open access: yes, 2004
A novel technique is proposed for watermarking of MPEG-1 and MPEG-2 compressed video streams. The proposed scheme is applied directly in the domain of MPEG-1 system streams and MPEG-2 program streams (multiplexed streams).
Briassouli, Alexia   +14 more
core   +1 more source

Caracterização do uso da fauna silvestre para subsistência em uma unidade de conservação no Oeste do Pará

open access: yesBiodiversidade Brasileira, 2018
Na Amazônia, a caça é amplamente praticada pelas comunidades tradicionais, constituindo uma das poucas fontes proteicas e de gordura animal disponíveis.
Yasmin Sampaio Reis   +2 more
doaj   +3 more sources

IMPACTOS AMBIENTAIS DECORRENTES DO ATERRO SANITÁRIO DA REGIÃO METROPOLITANA DE BELÉM-PA: APLICAÇÃO DE FERRAMENTAS DE MELHORIA AMBIENTAL

open access: yesCaminhos de Geografia, 2011
A geração indiscriminada de Resíduos Sólidos (RS) causa riscos ao equilíbrio ambiental e à saúde pública ao passo que é considerado como um dos problemas ambientais mais preponderantes na atualidade.
Francinaldo Oliveira Matos   +4 more
doaj  

Nanomaterials‐mediated glycolysis rewriting to potentiate tumor immunotherapy

open access: yesBMEMat, EarlyView.
This review systematically summarizes cutting‐edge advances in glycolysis‐rewiring nanomedicines, emphasizing their mechanisms in reversing immunosuppression and reinvigorating antitumor immune responses. Challenges in clinical translation and future directions for designing multifunctional metabolic‐immune modulators are also critically discussed ...
Zilin Ma   +9 more
wiley   +1 more source

PEGylated Cisplatin Nanoparticles for Treating Colorectal Cancer in a pH-Responsive Manner

open access: yesJournal of Immunology Research, 2022
Colorectal cancer (CRC) is a common malignant tumor, and its incidence ranks third and mortality rate ranks second in the world. Cisplatin cannot target CRC cells and has notable toxicity, which significantly limits its clinical application. The emerging
Wei Li   +4 more
doaj   +1 more source

Reprogramming tumor immune microenvironment by ultrasound‐responsive nanoplatforms for enhanced cancer immunotherapy

open access: yesBMEMat, EarlyView.
Ultrasound‐responsive nanoplatforms reprogram the tumor immune microenvironment by targeting tumor cells, immune cells, and non‐immune stromal cells to enhance the efficacy of cancer immunotherapy. Abstract Cancer immunotherapy represents a significant advancement in cancer treatment by enhancing the specific recognition and elimination of cancer cells.
Shilong Zhao   +4 more
wiley   +1 more source

An investigation of an MPEG-4 embedded spatial digital watermark developed for tamper detection and characterization [PDF]

open access: yes, 2003
The widespread adoption of digital video techniques has generated a requirement for authenticity verification in applications such as criminal evidence, insurance claims and commercial databases.
Knowles, HD   +3 more
core   +1 more source

Mimic, target, and adapt: Cell membrane‐coated nanoplatforms for precision and immune‐guided cancer treatment

open access: yesBMEMat, EarlyView.
This Perspective explores the emerging landscape of cell membrane‐coated nanoparticles (CM‐NPs) as intelligent, immune‐compatible platforms for cancer therapy. Highlighting design strategies, translational challenges, and competitive positioning, it outlines how integrating biomimetic targeting with advanced analytical and manufacturing tools could ...
A. K. M. M. Alam   +4 more
wiley   +1 more source

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