Recent work has shown that fine-tuning large networks is surprisingly sensitive to changes in random seed(s). We explore the implications of this phenomenon for model fairness across demographic groups in clinical prediction tasks over electronic hea
lth records (EHR) in MIMIC-III ------ the standard dataset in clinical NLP research. Apparent subgroup performance varies substantially for seeds that yield similar overall performance, although there is no evidence of a trade-off between overall and subgroup performance. However, we also find that the small sample sizes inherent to looking at intersections of minority groups and somewhat rare conditions limit our ability to accurately estimate disparities. Further, we find that jointly optimizing for high overall performance and low disparities does not yield statistically significant improvements. Our results suggest that fairness work using MIMIC-III should carefully account for variations in apparent differences that may arise from stochasticity and small sample sizes.
The research was carried out at Jeb Ramlah Research Station – AlGhab Research Center -
General Authority of Scientific Agricultural Research at 2017 growing season. The
objective was to investigate the effect of three organic and bio fertilizers (B
acillus, Humic
acid and Amino acids) and three fertilization methods (Soaking seeds, Vegetative spraying
and Plant irrigation) in some morphological and production traits of cotton cultivar 124
(Gossypium herutum L.) The experiment was conducted according to RCBD with three
replications. The first factor (fertilizer type) occupied the main plots, while the second
factor (fertilization method) occupied the split plots. Statistical analysis was carried out
using the Genestat.12 software and the least significant difference L.S.D. at 5% level was
calculated. Studied traits included (at the beginning of Blooming stage): Plant Height,
Plant wet weight, Plant dry weight, Leaf area and plant production of cotton. The results
showed that the average of treatment of amino acids was superiority significant on the
others in terms of plant height (70.70cm), Plant wet and dry weight (201.50, and 83.41g),
respectively, Leaf area (4240.15cm2/plant) and plant production of cotton (75.13g). For
fertilization method, Vegetative spraying average was superiority significant on the others
in terms of all studied traits.
A proper matching of agricultural machinery with properties of materials forms the
essential requirements which lead to best performance of machine.
To achieve that goal, availability of data and precision analysis on engineering and
physical prop
erties of these materials is required. This forms important and necessary data
base for the design, development and structure of agricultural machinery and equipments,
control and analysis of machines and determination of efficiency of machines.
This research was carried out to study some engineering and physical properties of seeds of
common Syrian crops to be used in the design and development of some agricultural
machinery and equipments.
Results provided the shapes and dimensions of cells of feeding devices for planting seeds
of some crops namely, wheat, maize, lentil, pea, chick-pea, kidney bean, broad bean and
cotton.
In addition a set of empirical equations were established to be used to predict, with
reasonable accuracy, the physical properties of crops seeds based on measurement of any
of three dimensions (length, width and thickness).
الخواص الهندسية للبذور
الخواص الفيزيائية للبذور
أبعاد البذور
جهاز التلقيم
خلايا التلقيم
جهاز التلقيم ذو الأسطوانة المموجة
آلة البذار
آلة التسطير
Engineering Physical properties of seeds
Physical properties of seeds
Dimensions of seeds
Feeding device
Cells of feeding
Fluted forced feed
Planter
Grain drill
المزيد..
The research was carried out during 2015 and 2016 seasons at Arab El-Mulk village,
Banias district, in Tartous Governorate, to study the effect of planting peanut seeds
size (mixture, small, medium and large), and spraying plants with bread yeast
(Saccaromyces serevisiae) concentration of (4%) in three treatments (control, once
and twice), on biological yield (BY), Economic yield (EY) and some physiological
indicators; yield index (YI), Harvest index (HI), crop index (CI) and seed index
(SI). The experiment design was set as split plot in a randomized complete block
with four replications. The seeds size considered the main factor, while spraying
yeast allocated the sub plots. The results showed that seed size caused significant
increases in all of the studied indicators. The large seeds gave better values of (BY)
210 g, (HI) 30.56%, (CI) 44.12%, (SI) 74.85 g, except (EY) compared with mix,
small and med seeds. Also the results showed that there were no significant increase
between mixture and medium seed size in (YE) and (HI), but there was a significant
increase in (BY) and (SI), on the other hand the treatments; spray yeast for once and
twice had significant increases compared to the control, and the twice yeast spraying
gave better values (215.22 g ,63.98 g, 29.64%, 42.37 % and 73.45g ) of (BY , EY
,HI, CI and SI) respectively, compared to the control. The interaction between seeds
size and bread yeast spraying caused a significant increase which achieved 15.78 %
in (BY), 23.99 % in (EY), 9.74 in (HI), 13.68% in (CY) and 7.87g in (SI) compared
to the interaction between untreated treatment and small seeds size.
The research was conducted on 25male lambs of Awassi
sheep to compare the effect of using different levels of whole cotton
seeds (WCS). The experiment extended for 70 days.
The research was conducted on 25male lambs of Awassi
sheep to compare the effect of using different levels of whole
cotton seeds(WCS). The experiment extended for 70 days,
experimental units were rested, then left for an adaptation period of
10 days, during the adaptation period, the animals were housed in
one pen, in the end of the adaptation period, the lambs were
individually weighed, then divided according to live weight into six
equal groups of an average weights (24-25) kg each.
This study investigated the effect of the water extract of two types
of algae which spread in Syrian marine: Colpomenia sinuosa
(Brown) and Ulva fasciata (green) and a combination of them in
the cultivation on tomato and tobacco seeds with concent
rations of
(1: 2 1: 4 1: 6 1: 8 1:10 1: 20) By adding 5ml of each
concentration, and comparing it with the control sample with only
distilled water added, the comparison was made in terms of: The
germination, stem length, root length, root branch.
The phenolic compounds were extracted from leaves and flowers of Hops and grape
seeds from local production by soaking with different solvents (Methanol-ethanol-alcohol
and water mixture) . The polyphenols content in the methanol extracts for 100 g
dry matter
was 6.31 g for the grape seeds, 2.08 g for Hops leaves and 0.6 g for Hops flowers.
Methanol extracts were characterized by an antioxidant activity that appeared by their
ability to Reduce ions ferriques Fe+3, at a concentration of 2500 ppm, the Reducing Power
was 96.45% , 67.56% for the grape seeds and Hops leaves, respectively. The methanolic
extracts of grape seeds and Hops leaves at 80 ppm showed activity in scavenge free radical
DPPH. was 82.04% and 40.92% respectively. The methanolic extracts of grape seeds and
Hops leaves at 250 ppm gave the ability to protect linoleic acid from the oxidation process
of 78.98% and 48.41%, respectively. The antioxidant activity values of the extracts were
compared with standard samples of ascorbic acid and BHT.
Adding the sifting meals of the Avocado seed to wheat flour mixtures caused
increasing in folowing percentages of components: (moisture , fibers , ash , starch and total
soluble sugars )
Also the (5,10%) percentages adding caused a slight reducing
in gluten quality ,
while a reducing in gluten quality was clearly at (15 , 20%) percentages.
Also the adding of tested meals caused improvement in baking quality (loaf weight
during baking and during cooling) , also improvement the sensory properties of produced
bread significantly , except (20%) percentage comparing with control sample.
Finally , 15 and 20 percentages , only of Avocado seed meals adding caused
reducing in taste property of produced bread.
The effect of different culture medias (water, MS solid, MS 1/2 solid) on germination
and growth of heliotropiun hirsutissimum Grauer. in vitro was studied with different
concentrations of gibberellic acid (0.001-0.01-0.1 and 1 mg/l).
The results
showed that best germination rate (80.5%) and root (20mm) and shoot
(35mm) growth were obtained in MS solid medium with 0.1mg/l GA3.
Addition of 0.1mg/l GA3 to MS1/2 solid medium improved germination rate
(75.44%), root (19mm), and shoot (24mm)growth.
When GA3 (0.1 mg/l) was added to water medium, germination rate reached
(65.33%), as well as root and shoot growth (12.66mm and20mm) alternatively after 2
weeks of planting.
Seedling of MS solid medium were transferred into pots contained torp medium to
adapting them with outside environment, and then surviving their growth until maturity
after 4 weeks.