323,260 research outputs found
Rassi family`s political history and jurisprudential services in Yemen
No full textRassi`s family state in Yemen is well-known among Shi`i governments in the Islamic world because of its agedness, from 897 to 1962. Existence of several scientific works and respectful graves, especially during the first period of their reign, indicates their long tale of admissibility. The scientific services they did developed and preserved Zeydie sect and strengthened the jurisprudent identity of the sect. The article, utilizing a descriptive-analytical method, is going to review scientific services of Rassi Alavids in Yemen and clarify scientific activities done by Zeydies and look for a relation between such activities and the longevity of their government and sect
Paraphyonus rassi
No full textParaphyonus rassi (Nielsen, 1975) Table 1, Figs. 1, 12 Aphyonus rassi Nielsen, 1975: 350 (type locality 12°59’N, 62°59’W). Paraphyonus rassi: Nielsen 2015: 339. Material examined. (4 specimens, 85–109 mm SL) NMV A 31819 -003, male, 103 mm SL, off Newcastle, NSW, 33°26.10’S, 152°39.90’E, RV Investigator, st. IN2017_VO3/065, beam trawl, 4173–4280 m, 30 May 2017. CSIRO H 8125-02 (GenBank Accession MH 491989), female, 109 mm SL, Hunter Commonwealth Marine Reserve, NSW, 32°08.28’S, 153°31.62’E, RV Investigator, st. IN2017_ V03 /078, beam trawl, 3980–4029 m, 4 June 2017. CSIRO H 8132-01, 2 males, 85–101 mm SL (GenBank Accessions MH 491992 and MH 491993, respectively), east of Moreton Bay, Qld, 27°00.47’S, 154°13.39’E, RV Investigator, st. IN2017_ V03 /102, beam trawl, 4274– 4264 m, 10 June 2017. Diagnosis. Paraphyonus rassi differs from the other species of the genus by the black pigmentation laterally in the roof of the mouth distinctly visible externally and only 3–4 developed rakers on the anterior gill arch. Size. Largest known specimen (109 mm SL) is a ripe female with eggs ca. 1 mm in diameter. Distribution (Fig. 1). Known from four specimens in the West Atlantic (2610–4400 m), from two in the East Atlantic (4415 m) and now from four specimens off NSW and southern Qld (3980–4280 m). Remarks. The comparison in Table 1 between the present four specimens and the six earlier known specimens all from the Atlantic Ocean (Nielsen 2015) shows close agreement between the specimens from the two areas. One of the six specimens was originally tentatively identified as P. rassi due to differences in number of rays in dorsal and anal fins, number of vertebrae and length between base of pelvic fins and anal fin. However, the present material levels out the differences in number of fin rays and vertebrae. Consequently, there seems no longer any reason for considering the specimen tentatively identified.Published as part of Nielsen, Jørgen G., Pogonoski, John J. & Appleyard, Sharon A., 2019, Aphyonid-clade species of Australia (Teleostei, Bythitidae) with four species new to Australian waters and a new species of Barathronus, pp. 554-572 in Zootaxa 4564 (2) on pages 567-568, DOI: 10.11646/zootaxa.4564.2.12, http://zenodo.org/record/258900
Lycenchelys rassi Andriashev 1955
No full textLycenchelys rassi Andriashev, 1955. Earless Eelpout. To about 24 cm (9.4 in) SL (Kawarada et al. 2020). Sea of Okhotsk off Sakhalin (Andriashev 1955) and Hokkaido (Toyoshima in Amaoka et al. 1983); south-western Bering Sea at Kronotskiy Bay (Anderson 1995); one record from south-eastern Bering Sea, Alaska north of Unalaska Island (Peden 1973, Mecklenburg et al. 2002). Benthic; depth: 895–1,805 m (2,936 –5,922 ft) (min: Kawarada et al. 2020; max.: Peden 1973).Published as part of Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W. & Maslenikov, Katherine P., 2021, Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico, pp. 1-285 in Zootaxa 5053 (1) on page 181, DOI: 10.11646/zootaxa.5053.1.1, http://zenodo.org/record/557800
The evaluation of HGMS for mineral processing with a single wire
No full textIn this short communication it is shown that it is possible to undertake inexpensive but useful preliminary mineral studies using single–wire HGMS. Such studies enable an assessment to be made of the viability of HGMS as a large-scale processing technique for particular mineral slurries.<br/
Beta Band Rhythms Influence Reaction Times
No full textDespite their involvement in many cognitive functions, s oscillations are among the least understood brain rhythms. Reports on whether the functional role of s is primarily inhibitory or excitatory have been contradictory. Our framework attempts to reconcile these findings and proposes that several s rhythms co-exist at different frequencies. s Frequency shifts and their potential influence on behavior have thus far received little attention. In this human magnetoencephalography (MEG) experiment, we asked whether changes in s power or frequency in auditory cortex and motor cortex influence behavior (reaction times) during an auditory sweep discrimination task. We found that in motor cortex, increased s power slowed down responses, while in auditory cortex, increased s frequency slowed down responses. We further characterized s as transient burst events with distinct spectro-temporal profiles influencing reaction times. Finally, we found that increased motor-to-auditory s connectivity also slowed down responses. In sum, s power, frequency, bursting properties, cortical focus, and connectivity profile all influenced behavioral outcomes. Our results imply that the study of s oscillations requires caution as s dynamics are multifaceted phenomena, and that several dynamics must be taken into account to reconcile mixed findings in the literature.This research was funded in whole, or in part, by the Austrian Science Fund (FWF) Erwin Schrödinger Fellowship J4580 to ER. For the purpose of open access, the author has applied a CC BY public copyright license to any Author Accepted Manuscript version arising from this submission. SH is supported by NWO Vidi 016.Vidi.185.137 and NIH R01 MH123679
Encoding of common grasps in the resting human brain
No full textIntroduction:
An abundant literature shows similarities between task-driven and intrinsic (low frequency
fluctuations(LFFs)/ resting state) driven activity. But how exactly do task-related functional
connectivity (FC) of LFFs get modulated, and what is the significance of this information? Newest
resting state literature suggests that the brain at rest preserves representations of the statistical
regularities of the body and the natural environment (Livne, 2020; Pezzulo et al., 2021; Betti et
al., 2021). For example, recent findings suggest a higher similarity between resting state and
task-evoked fluctuation patterns and patterns elicited by common hand movements as opposed
to uncommon (Livne, 2020). Accordingly, in a previous work, we show that the resting
somatomotor cortex retains the topography of the hand and that that effect is mediated by use
(El Rassi, 2022). Here we test the hypothesis that watching motor execution performed in a
common/naturalistic way has a similar FC architecture to that of resting state LFFs. We expect that visual task related modulations of LFF FC will be more pronounced than when observing nonnaturalistic
actions. This is based on literature showing that action observation excites similar
networks as action execution, and that that excitation is facilitated when observing naturalistic
movements (Lago, 2010). Here we take it one step forward and investigate visual task
modulations with respect to resting state architecture. In particular we hypothesize that 1)
functional connectivity architecture is different when observing common hand grasps vs
uncommon, and 2) modulations related to watching common hand grasps are more correlated to
resting state fluctuations that code regularities of the environment, as opposed to viewing
uncommon hand grasps.
Methods:
We collected 15 minutes of resting state fMRI data and then asked our participants to watch
videos of common and uncommon (tilted shoulder, elbow and fingers) hand grasps of 26 subjects,
organized in blocks (30 s blocks, including 10 videos each). All data was preprocessed using SPM,
and subject-specific whole brain ROI to ROI LFF functional connectivity matrices were generated
for the resting state block and each category, using Conn toolbox. We used the parcellation of
Conn toolbox of the whole brain ending up with 32 main nodes with 496 connections. We first
performed a t-test contrasting common and uncommon FC matrices. We then computed for each
subject the correlation between FC patterns at rest and in each of our 2 conditions. Finally, we
performed a t-test between the correlations of rest and task.
Results:
Results: We found 1) significant differences in connectivity between common and uncommon
conditions in 48 nodes (p<0.05, uncorrected) and a general increase of functional connectivity
when watching uncommon vs common movements. Of interest, the biggest clusters with FC
differences were between the visual system and the sensorimotor and dorsal attention networks,
2) a higher correlation of FC between rest and common movement viewing as opposed to
uncommon (p=0.002)
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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