Abstract：
:Since William James (1890) first distinguished primary from secondary memory, equivalent to short- and long-term memory, respectively, it has been assumed that short-term memory processes are in charge of cognition while long-term memory is being consolidated. From those days a major question has been whether short-term memory is merely a initial phase of long-term memory, or a separate phenomena. Recent experiments have shown that many treatments with specific molecular actions given into the hippocampus and related brain areas after one-trial avoidance learning can effectively cancel short-term memory without affecting long-term memory formation. This shows that short-term memory and long-term memory involve separate mechanisms and are independently processed. Other treatments, however, influence both memory types similarly, suggesting links between both at the receptor and at the post-receptor level, which should not be surprising as they both deal with nearly the same sensorimotor representations. This review examines recent advances in short- and long-term memory mechanisms based on the effect of intra-hippocampal infusion of drugs acting upon neurotransmitter and signal transduction systems on both memory types.
journal_name
An Acad Bras Ciencjournal_title
Anais da Academia Brasileira de Cienciasauthors
Vianna MR,Izquierdo LA,Barros DM,Walz R,Medina JH,Izquierdo Idoi
10.1590/s0001-37652000000300009subject
Has Abstractpub_date
2000-09-01 00:00:00pages
353-64issue
3eissn
0001-3765issn
1678-2690pii
S0001-37652000000300009journal_volume
72pub_type
杂志文章,评审abstract：:Cyperaceae is an angiosperm family with the greatest diversity of species with Kranz anatomy. Four different types of Kranz anatomy (chlorocyperoid, eleocharoid, fimbristyloid and rhynchosporoid) have been described for this angiosperm family, and the occurrence and structural characteristics of these types are import...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201520150175
更新日期：2015-10-01 00:00:00
abstract：:The objective of this trial was to evaluate the behavioral patterns and performance of lactating sows and their litters under the effect of artificial vocalization. Twenty-eight sows and their litters were distributed in a completely randomized design in a 2x2 factorial scheme (artificial vocalization x lactation week...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201820180340
更新日期：2018-10-01 00:00:00
abstract：:Several parasitoids attacking the same host may lead to competition. Adult parasitoids' abilities to find, parasitize and defend hosts determine resource's retention potential. In soybean, two egg parasitoid species, Telenomus podisi and Trissolcus urichi (Hymenoptera: Platygastridae), compete on the egg masses of Pie...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201920180597
更新日期：2019-10-14 00:00:00
abstract：:Experiments in this paper demonstrate that mitochondrial damage associated to NAD(P)+-induced Ca2+ efflux, is the consequence of inappropriate reaction conditions. The major findings are (i) Added oxaloacetate and acetoacetate readily oxidize NAD(P)H in intact rat liver mitochondria without causing swelling or membran...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：
更新日期：1985-09-01 00:00:00
abstract：:Many essential oils (EOs) of different plant species possess interesting antimicrobial effects on buccal bacteria and antioxidant properties. Eugenia klotzschiana Berg (pêra-do-cerrado, in Portuguese) is a species of Myrtaceae with restricted distribution in the Cerrado. The essential oils were extracted through the h...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201720160652
更新日期：2017-07-01 00:00:00
abstract：:Burkholderia kururiensis is a diazotrophic bacterium originally isolated from a polluted aquifer environment and presents a high level of similarity with the rice endophyte "B. brasilensis" species. This work assessed the ability of B. kururiensis to endophytically colonize rice plantlets by monitoring different tissu...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/s0001-37652008000300009
更新日期：2008-09-01 00:00:00
abstract：:Knowledge about the botanical source of honey is very important for the beekeeper while it indicates adequate and abundant supply sources of nectar and pollen for the bees, thus contributing toward improved yield. The present study means to identify the pollen types occurring in 58 samples of honey produced in two sta...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/s0001-37652007000300003
更新日期：2007-09-01 00:00:00
abstract：:The aim of this study was to evaluate the production performance of Nile tilapia post-larvae and fingerlings fed with increasing levels of alcoholic extract of propolis into diets. In Experiment 1, 1800 post-larvae were distributed in 30 tanks, in a completely randomized design with five treatments composed by the inc...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201920180297
更新日期：2019-05-23 00:00:00
abstract：:The centesimal composition and the physical and chemical analyses of Lentinus strigosus, an edible mushroom occurring in the Brazilian Amazon and produced in alternative substrates based on wood and agroindustrial residues, were evaluated. For this purpose, the C, N, pH, soluble solids, water activity, protein, lipids...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201399412
更新日期：2013-01-01 00:00:00
abstract：:Geopropolis is a special type of propolis produced by stingless bees. Several pharmacological properties have been described for different types of geopropolis, but there have been no previous studies of the geopropolis from Melipona mondury. In this study, we investigated the antioxidant, antibacterial, and antiproli...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201720160725
更新日期：2017-01-01 00:00:00
abstract：:The main objective of this work is to evaluate the occurrence of bromophenols (2bromophenol, 4bromophenol, 2,4dibromophenol, 2,6dibromophenol and 2,4,6tribromophenol), in the flesh and guts in two species of the LutjanidaeFamily: Lutjanus synagris and Ocyurus chrysurus. The bromophenols were extracted by steam distill...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/s0001-37652009000200002
更新日期：2009-06-01 00:00:00
abstract：:This work was carried out in two small fishing communities, Barra de Mamanguape and Tramataia, Northeastern Brazil. The aim was to study these traditional fishermen's knowledge and perception about tide and wind classifications, as well as their fishing strategies and techniques. Our research methodology involved vari...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/s0001-37652012005000046
更新日期：2012-09-01 00:00:00
abstract：:Four new N-alkyl-2-mercapto-1-octylamine hydrochlorides were synthesized via the reaction of 1,2-epithio-octane with corresponding amines following by conversion to the hydrochlorides. The disulfides were obtained by oxidation of the respective thiols. Upon biological assay of the products for activity against infecti...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：
更新日期：1986-12-01 00:00:00
abstract：:Four soybean meal-based diets containing increasing levels of an enzyme complex (E50, E100, E150 and E200 at 50, 100, 150 and 200 g ton-1, respectively) and one soybean meal-based diet without the enzyme complex (E0) were fed in triplicate to M. liza juveniles in a semi-static flow system with 20 fish per tank for 75 ...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201720160446
更新日期：2017-01-01 00:00:00
abstract：:Pollen grain morphology of Bromeliaceae species collected in areas of the Atlantic Rainforest of southeastern Brazil was studied. The following species were analyzed: Aechmea bambusoides L.B.Sm. & Reitz, A. nudicaulis (L.) Griseb., A. ramosa Mart. ex Schult.f., Ananas bracteatus (Lindl.) Schult.f., Billbergia distachi...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201620140715
更新日期：2016-01-01 00:00:00
abstract：:The objective of this work was to study the reduction in the capsaicin toxicity by encapsulation in liposomes. Capsaicin was extracted from peppers and characterized with high performance liquid chromatography (HPLC). We determined the zeta potential, polydispersivity index (PdI) and vesicle size of liposomes. Wistar ...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201620150309
更新日期：2016-09-01 00:00:00
abstract：:Eimeriosis is caused by a protozoan parasite of the genus Eimeria and infection affecting most domestic animal species. The aim of this research was to comprehend the impact of selenium nanoparticles (SeNPs) on eimeriosis induced by Eimeria papillata in mouse jejunum, and how they work as antioxidants and anti-apoptot...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765202020191107
更新日期：2020-06-03 00:00:00
abstract：:Acute intermittent porphyria is the most common acute porphyria caused by a decrease in hepatic porphobilinogen deaminase activity, resulting in an accumulation of delta-aminolevulinic acid and porphobilinogen. This disease shows nonspecific signs and symptoms that can be confused with other diseases, thereby making t...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/S0001-37652013000300019
更新日期：2013-09-01 00:00:00
abstract：:This study investigated the dynamics of cyanobacteria in two deep, eutrophic reservoirs in a semi-arid region of Brazil during periods of stratification and destratification. Four collections were carried out at each reservoir at two depths at three-month intervals. The following abiotic variables were analyzed: water...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/s0001-37652011000400019
更新日期：2011-12-01 00:00:00
abstract：:Arbuscular Mycorrhizae (AM) are mutualistic associations between Arbuscular Mycorrhizal Fungi (AMF) and the roots of many plant species. AMF spores give rise to filaments that develop in the root system of plants and contribute to the absorption of water and some nutrients. This article introduces a semi-automated cou...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201920180165
更新日期：2019-10-21 00:00:00
abstract：:Dietary supplements in many countries such as the USA do not require registration prior to commercialization. The Agência Nacional de Vigilância Sanitária (ANVISA) registers substances with functional properties as foods. Lutein is a carotenoid with antioxidant activity available on the market. However, no regulatory ...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201820170972
更新日期：2018-07-01 00:00:00
abstract：:To understand the increasingly tenuous relationship between ourselves and the finite resource base upon which we depend for all sustenance, an exploration of recent history and basic human behavior is warranted. An attempt is made to shed light on how short-term economic demands have come to take priority over nearly ...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201920190236
更新日期：2019-07-29 00:00:00
abstract：:Aged skin, featured with dryness and wrinkles, has received mounting attention due to its adverse influences on beauty. β-Sitosterol and vermicularin are two common active ingredients of Thamnolia vermicularis (Sw.) Ach., a traditional Chinese medicine, of which the anti-aging effect has been discovered. Their protect...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201920181088
更新日期：2019-12-02 00:00:00
abstract：:The amino acid sequence of the "double-headed" trypsin and chymotrypsin inhibitor (BTCI), purified from the cowpea Vigna unguiculata (L.) Walp. cv "Seridó" was determined in our laboratory. Tryptic and chymotryptic peptides were sequenced by the Edman-Gray and Edman-Chang N-terminal manual method as well as the carbox...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：
更新日期：1987-01-01 00:00:00
abstract：:The golden mussel, Limnoperna fortunei, is among the most devastating invasive species in freshwater habitats worldwide, leading to severe environmental disturbances and economic losses. Therefore, management efforts would be greatly improved by methods that efficiently detect and quantify the abundance of the golden ...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201720160723
更新日期：2017-04-01 00:00:00
abstract：:Peptides are remarkably reactive molecules produced by a great variety of species and able to display a number of functions in uni-and multicellular organisms as mediators, agonists and regulating substances. Some of them exert cytotoxic effects on cells other than those that produced them, and may have a role in cont...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/s0001-37652009000300015
更新日期：2009-09-01 00:00:00
abstract：:The kidneys in two viviparous species of Neotropical lizards, Notomabuya frenata and Aspronema dorsivittatum (Mabuyidae), were investigated by light and scanning electron microscopy in order to determine the presence of the sexual segment of the kidney (SSK) and to study its morphology. The individuals used in this st...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201820170871
更新日期：2018-08-01 00:00:00
abstract：:The objective was to evaluate the influence of calving and postpartum characteristics, measured in different genetic predominance, on the postpartum rebreeding. Were evaluated 437 partum from cows that received feeding management consisting of a forage base of the native field and the mating season consisted of 90 day...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201820171005
更新日期：2018-08-01 00:00:00
abstract：:Spatial variation in the environment may be an important source of morphological variation in many organisms. Tadpoles are valuable model organisms for studies of morphological variation, and in particular, the evaluation of the relationship between environmental and morphological variables. In heterogeneous environme...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765202020181171
更新日期：2020-11-02 00:00:00
abstract：:This essay discusses the problem of the lack of dialogue between theory/empirical reality in the construction of the theoretical structure of dissertations and doctorates in Human Sciences in Brazil; taking Geography as an example, Santos (2000) observed this problem, which persists at the national level. The proposal...
journal_title：Anais da Academia Brasileira de Ciencias
pub_type： 杂志文章
doi：10.1590/0001-3765201920171020
更新日期：2019-01-01 00:00:00
