217,092 research outputs found
Font tuning : a review and new experimental evidence.
This paper reflects on the kinds of evidence able to confirm that letter and word identification in reading can be supported by encoding the underlying visual structure of the text, and specifically by deriving structural descriptions for letters. It is proposed that structure-driven processes are intimately linked to the implementation of font-specific rules for translating visual features into elements of a letter’s structural description. Evidence for such font tuning comes from studies exploring the impact of font-mixing on reading fluency, and from studies showing how the benefits of experience with a novel typeface can generalise to letters that have yet to be seen in the typeface. After reviewing this evidence, three new experiments are reported which explore font tuning in the context of the lexical decision task. The time course of font tuning, which is monitored by changing the time interval between successive test stimuli, is shown to be sensitive to the overall probability with which successive stimuli appear in the same typeface. In addition, font tuning is shown to reflect item-by-item fluctuations in this probability. Finally, the effects of font-switching are shown to generalise beyond the particular letters present in the text, and to be confined to 1-back transitions. It is concluded that font tuning reflects the implementation of a set of font-specific translation rules held in working memory, and is moderated by the reader’s implicit knowledge of the constraints present in the sequencing of successive portions of text
The Optimum Font Size and Type for Students Aged 9-12 Reading Arabic Characters on Screen: A Case Study
More and more, interest in the way data is displayed on screen has increased, especially with the increase in the number of people using e-text for learning purposes. So, this requires more focus on factors that affect screen legibility. Text display factors, such as font size, line length and font type, have an impact on reading online. Two font types [Arabic Traditional and Simplified Arabic] in four different sizes [10, 14, 16 and 18] are measured using Arabic text. On-line processes were measured using reading –aloud technique. Accuracy of reading was also measured by the average of errors that students made when reading the text, while reading speed was tested by the time it took students to read the text. However, results indicated that Arabic text in font size 10 is not readable to students aged 10 to 12. On the other hand, font sizes sixteen and eighteen are more readable than any smaller-sized font, the averages of error size 18 improve in all font types, while age has a significant impact on reading speed. Simplified Arabic font is reported as readable to students aged 10-12, especially in sizes 14 and 18
<span style="font-size:23.5pt;mso-bidi-font-size:14.5pt;color:black">Synthesis, structure and luminescence behaviour of complexes of type <span style="font-size:23.5pt;mso-bidi-font-size:14.5pt;color:black">[Cd(dpa)<sub>2</sub>X<sub>2</sub>] (dpa <span style="font-size:21.5pt;mso-bidi-font-size:12.5pt;font-family: Arial;color:black">= <span style="font-size:23.5pt;mso-bidi-font-size: 14.5pt;color:black">2,2'-djpyridylamine; X <span style="font-size:21.5pt; mso-bidi-font-size:12.5pt;font-family:Arial;color:black">= <span style="font-size:23.5pt;mso-bidi-font-size:14.5pt;color:black">N<sub><span style="font-size:18.0pt;mso-bidi-font-size:9.0pt;color:black">3</span></sub><sup><span style="font-size:18.0pt;mso-bidi-font-size:9.0pt;color:black">-</span></sup><span style="font-size:18.0pt;mso-bidi-font-size:9.0pt;color:black">, <span style="font-size:23.5pt;mso-bidi-font-size:14.5pt;color:black">NCS<sup>-</sup>, NCO<sup>-</sup>) </span></span></span></span></span></span></span></span>
687-692The synthetic details
and characterization data of three mononuclear complexes or the type [Cd(dpa)2X2]
(dpa <span style="font-size:21.5pt;mso-bidi-font-size:12.5pt;font-family:
Arial;color:black">= <span style="font-size:23.5pt;mso-bidi-font-size:
14.5pt;color:black">2,2'-dipyridylamine; X <span style="font-size:21.5pt;
mso-bidi-font-size:12.5pt;font-family:Arial;color:black">= N3-, NCS-,
2 and X-NCO-,3) <span style="font-size:17.5pt;mso-bidi-font-size:
8.5pt;color:black"> are described. In one
case, <span style="font-size:23.5pt;mso-bidi-font-size:14.5pt;
color:black">[Cd(dpa)2(<span style="font-size:17.5pt;
mso-bidi-font-size:8.5pt;color:black">NCS)2 (2), X-ray structure determination
has been made for<span style="font-size:15.5pt;mso-bidi-font-size:6.5pt;
color:black"> <span style="font-size:17.5pt;mso-bidi-font-size:8.5pt;
color:black">the exact definition of the coordination sphere. Structural
analysis reveals that the cadmium(II ) centre is in a distorted octahedral environment
with a CdN<span style="font-size:18.5pt;mso-bidi-font-size:8.5pt;
color:black">5<span style="font-size:17.5pt;mso-bidi-font-size:
8.5pt;color:black">S chromophore with two dpa units roughly perpendicular to
one another and the two thiocyanates in mutual cis orientation with one
in S-bound and the other in N-bound states. The mononuclear unit packs through
N-H ... S and N-H- ... N hydrogen bonding to have a one-dimensional (ID) chain.
Spectroscopic and other physicochemieal data show that compounds 1<span style="font-size:17.5pt;
mso-bidi-font-size:8.5pt;font-family:Arial;color:black"> and 3 have the cognate structure. The compounds
display high energy intraligand 1<span style="font-size:18.0pt;
mso-bidi-font-size:9.0pt;color:black">(π- π *) fl<span style="font-size:
17.5pt;mso-bidi-font-size:8.5pt;color:black">uorescence and intraligand 3(π- π *') phosphorcscence
in glassy solutions (DMF at 77 K). A band (near 375 nm) observed for all the complexes
in their solid state emission spectra is an excimeric emission. The role of
dpa, a tailored diimine with active amine hydrogen and aromatic pyridine ring, is
discussed towards
functionalisation
on crystal engineering and luminescence behaviour.
</span
Entretiens ecclésiastiques sur la pénitence
par M. de La Font, prieur de Valabregue ...Aus dem Vorbestiz des Klosters Rheina
Juan Triadú Font licenciado en filosofía y letras
Correspondencia Gabriel Méndez Plancarte ; Pasaje Carolinas, 6, Tel. 79084</p
Prescribing by mental health nurses: the UK perspective
PURPOSE. This article aims to discuss the growth of mental health nurse (MHN) prescribing in the United Kingdom as an exemplar for readers to compare progress in their own countries and context. This study also aims to provide a historical overview of this process in the United Kingdom where MHNs prescribe safely and competently.
CONCLUSIONS. Finally, evidence has shown that MHNs with prescriptive authority are competent when prescribing when compared to psychiatrists.
PRACTICE IMPLICATIONS. Despite organizational barriers and educational concerns, MHN prescribing is becoming embedded in the healthcare context in the United Kingdo
<span style="font-size:11.0pt;mso-bidi-font-size: 10.0pt;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman"; mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-US">Comparison of observed h<sub>m</sub>F2 and IRI 2007 model with M(3000)F2 estimation of h<sub>m</sub>F2 during high solar activity for an equatorial station</span>
82-88In this paper, the ways
of improving the equatorial F2 layer peak heights estimated from M(3000)F2
ionosonde data measured using the Ionospheric Prediction Service (IPS-42)
sounder at Ouagadougou, Burkina Faso (geog lat +12.4°N, geog long +1.5°W, magnetic dip +5.9<span style="font-family:Symbol;
mso-ascii-font-family:" times="" new="" roman";mso-hansi-font-family:"times="" roman";="" mso-char-type:symbol;mso-symbol-font-family:symbol"="" lang="EN-US">°N) during
high solar activity year (1991) was investigated. For this purpose, the
observed height of maximum electron density of F2 region (hmF2obs),
deduced using an algorithm from scaled virtual
heights of quiet day ionograms; and the predicted hmF2
values, which is given by the IRI 2007 model (hmF2IRI2007)
have been compared with the ionosonde measured M(3000)F2 estimation of the hmF2
values (hmF2est), respectively. A strong correlation with
its coefficients R2 for all the seasons ranging 0.562 - 0.857 for hmF2obs
values, and ranging 0.876 - 0.968 for the hmF2IRI2007 values
was observed in the linear regressions of hmF2obs and hmF2IRI2007
with M(3000)F2 inverse. During the nighttime, estimated hmF2 (hmF2est)
was found to be positively correlated with the hmF2obs values
by the post-sunset peak representation, which is not represented by the hmF2IRI2007
values. Also, the validity of the hmF2est values
has been investigated by finding the percentage deviations when compared with
the hmF2obs and hmF2IRI2007.
</span
Entrevista al Dr. Josep Maria Font i Rius
Entrevista que recull alguns testimonis de la trajectòria acadèmica del Dr. Josep M. Font i Rius, jurista i historiador del dret català, en motiu del seu 95è aniversari1803.mp4
font-rius.mp
<span style="font-size:11.0pt;font-family: "Times New Roman","serif";mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Mangal;mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language: HI" lang="EN-GB">Phytochemical screening and antibacterial activity of <i style="mso-bidi-font-style:normal">Hemionitis arifolia </i><span style="font-size:11.0pt;font-family:"Times New Roman","serif"; mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:Mangal; mso-ansi-language:PT-BR;mso-fareast-language:EN-US;mso-bidi-language:HI; mso-bidi-font-style:italic" lang="PT-BR">(Burm.) <span style="font-size:11.0pt;font-family:"Times New Roman","serif"; mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:Mangal; mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language:HI; mso-bidi-font-style:italic" lang="EN-GB">Moore</span></span></span>
9-13<span style="font-size:11.0pt;
font-family:" times="" new="" roman","serif";mso-fareast-font-family:"times="" roman";="" mso-bidi-font-family:mangal;mso-ansi-language:pt-br;mso-fareast-language:en-us;="" mso-bidi-language:hi"="" lang="PT-BR">Hemionitis arifolia
(Burm.) <span style="font-size:11.0pt;
font-family:" times="" new="" roman","serif";mso-fareast-font-family:"times="" roman";="" mso-bidi-font-family:mangal;mso-ansi-language:en-gb;mso-fareast-language:en-us;="" mso-bidi-language:hi;mso-bidi-font-style:italic"="" lang="EN-GB">Moore of family Hemionitidaceae is
one of the endemic and widely distributed species on Tirumala hills of
Tirupati, Andhra Pradesh, India. Ethnomedicinally, the genus
is important and popularly known as Ramabanum. It has been used in burns,
menstrual disorders, anti-flatulence and antifertility.<span style="mso-bidi-font-weight:
bold"> Eight different organic solvents
were used to extract the bioactive compounds from the whole plant to screen the
phytochemical and antibacterial activity against infectious disease causing
bacterial pathogens such as Enterobacter
aerogens, Klebsiella pnemoniae, Salmonella paratyphi A, Ralstonia eutropha,
Salmonella typhi, Salmonella paratyphi B, Staphylococcus aureus, Bacillus
cereus, Bacillus subtilis, Bacillus sphericus, Bacillus sterothermophilus and Micrococcus luteus<span style="mso-bidi-font-weight:
bold;mso-bidi-font-style:italic"> <span style="mso-bidi-font-weight:
bold">by agar well diffusion method. Phytochemical screening showed the
presence of flavonoid, steroids and glycosides along with reducing sugar in all
the extracts investigated. Gram-negative
bacteria such as Salmonella typhi, S. paratyphi
A and Enterobacter aerogens were
more susceptible to the crude extracts than Gram-positive bacteria. Hence, at
any rate Hemionitis arifolia is an
attractive material for further research leading to possible drug development.</span
<i style="mso-bidi-font-style:normal"><span style="font-size:11.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman"; mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-US">In vitro</span></i><span style="font-size:11.0pt;mso-bidi-font-size: 10.0pt;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman";mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:AR-SA" lang="EN-US"> antimicrobial, antioxidant, and antiviral activities of the essential oil and various extracts from <i style="mso-bidi-font-style:normal">Thymus nummularis </i>M. Bieb.</span>
403-410<span style="font-size:11.0pt;mso-bidi-font-size:
10.0pt;font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa"="" lang="EN-US">This study is designed to determine the in vitro antioxidant, antimicrobial and
antiviral activities of hexane, chloroform, water extracts and essential oils
of Thymus nummularis M. Bieb.
Chemical composition of essential oil was determined by employing GC-MS and
GC-FID analyses; thymol being the main component in 58 %<i style="mso-bidi-font-style:
normal">. The oil and extracts were screened for their possible antioxidant
activities by two complementary test systems, namely DPPH free radical
scavenging and β-Carotene color
bleaching test – a spectrophotometric method. The highest free radical
scavenging activity was observed in the essential oil (IC50: 2.3
μg/ml) whilst, in β-Carotene color
bleaching test, chloroform extract showed superiority<i style="mso-bidi-font-style:
normal">, with an inhibition rate at 79.95 %. Antibacterial and antifungal
activities of the extracts were also evaluated and among which the essential
oil exerted better activity against all microorganisms tested except for Pseudomonas aeruginosa. Nevertheless,
none was effective against test viruses, namely HSV and Influenza.</span
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