We propose a shared task on training instance selection for few-shot neural text generation. Large-scale pretrained language models have led to dramatic improvements in few-shot text generation. Nonetheless, almost all previous work simply applies ra
ndom sampling to select the few-shot training instances. Little to no attention has been paid to the selection strategies and how they would affect model performance. Studying the selection strategy can help us (1) make the most use of our annotation budget in downstream tasks and (2) better benchmark few-shot text generative models. We welcome submissions that present their selection strategies and the effects on the generation quality.
The aim of this study was to estimate the total amount of phenolic compounds of olive
trees leaves (Olea europaea L.) as Biomarker for the assessment of lead air pollution at
Banias area. Olive trees were selected as the predominant species in the
study area. The
samples were collected from 6 locations at different distances from the vicinity of the
Banias refinery (0.1, 0.5, 2, 4, 6, 10) Km. The dominated wind in the region is western -
southwesterly during the winter (March) and summer (September), The control was taken
from an area about 20 km from the refinery to the north-east (al-Qardahah rural).
The concentration of total phenolic compounds (TPC) during the summer was (45.6-70.85)
mg GAE/g dw and in the control (40.4) mg GAE/g dw, and during the winter the content
of TPC was (35.6-52.9) mg GAE/g dw and in the control (25.8) mg GAE/g dw. The
concentration of Lead (Pb) in unwashed leaves during the summer was (0.879 – 2.170)
ppm and in the control (0.005) ppm, whilst during the winter was (0.479-1.023) ppm and
in the control (0.00083) ppm. The results showed significant differences in the
concentration of total phenolic compounds and lead between sites (Anova test). High
concentration of total phenols and lead in the summer compared to values in winter at all
sites (t-test). The results also showed a negative correlation between the concentration of
total phenolic compounds and lead with the distance from the refinery of Banias. Finally,
The results showed that the TPC can be used as biomarker of lead air pollution in Banias
area.
The aim of the study is to determine the concentration of some heavy metals in some
imported tattoo inks (black and colored).
Sold in Homs, Tartous, Ybroud and DeirAtieh, and assess whether tattoo inks comply with
maximum concentrations of heavy m
etals in the EPA’s guid line -2012 and find out the
relation of colours by Ni, Cu, Pb, Cd and Cr contents.
18 Samples of tattoo inks purchased from different sources.
5 Samples black, 4 samples green, 5 samples red, 2 samples brown,1 sample white and 1
sample oily.
This samples reveals that the concentration of heavy metals previously mentioned very
high and varies depending on the source of the tattoo ink.
These concentrations above the maximum limits according to the EPA’s-2012 quid line.
This study reveals also that the type of pigment used in tattoo inks contributes to its heavy
metal content.
The use of tattoo inks could result increase in the heavy metal level in human body which
could lead to health problems.
In this search, the removal of copper and lead ions from aqeous solutions by flotation had
been studied, and the effect of various factors on the removal process.
The study showed that the removal of copper and lead ions was increased by increasing
the
value of the solution pH up to pH = 8 and the removal rate was 80%.
At pH = 10 precipitation of the ions was obtained in the form of hydroxides.
The removal ratio of both ions is increased by increasing the flow of the air within the
solution to reach 98% for copper and 97% for lead at the flow of Q = 1000 ml/min and
then the removal rate decreases to 60% with increasing airflow to Q = 1500 ml/min.
The initial concentration values affect the removal process and the increase in the removal
ratio was shown by increasing the initial concentration. The removal rate of copper ions
was 50 % at the initial concentration of C0 = 50 mg / l to 98% at C0 = 100 mg / l. While the
lead removal rate was 61 % at the initial Concentration C0 = 50 mg/l to 97% at
concentration C0 = 100 mg / l.
The study investigated the possibility of removing heavy metal ions (Cd, Pb) from
aqueous solutions using adsorption method on the citrus peel (orange), which is a solid
waste available in abundance especially in the Syrian coast as well as easy to
use at low
cost. The optimal conditions for the simultaneous adsorption of the ions (Cd 2+, Pb 2+) on
the surface of orange peel (dry, soft) were determined.The concetration of ions was
determined using (DPASV) method Which is characterized by Sensitivity and high
accurawcy. The results showed that the optimum adsorption conditions were at pH = 5 ,
equleibrium time = 60 min, and the initial concentration is ( C0 = 50-200) ppm,The
application of the Langmuir and Frienlish models showed that Frienlish model is best fited
for expressing the adsorption of Pb ions on the surface of dry and soft orange peel and for
expressing the adsorption of Cd ions on the surface of soft orange peel , Langmuir model
is best fited for expressing the adsorption of Cd ions on the surface of dry orange peel.
The method applied its selected terms to realistic samples of processed and industrial
waste water, which showed a unique response as a purification method for the water
media.
Lead and sodium molybdates form one of the most promising chemical compounds
because of their various and important properties when used in many different technological
applications such ceramic preparation, melting resistance materials and used in
solar energy
applications.
This research aims to study the equilibriums phases in the binary system of sodium
molybdate with lead molybdate. We used there for tow techniques :The technique of X-ray
diffraction, and technique of differential thermal analysis to study some physical properties.
The result of this research was the obtaining of a solid solution based on a lead
molybdates, where the sodium molybdate is dissolved in the lead molybdateup to 40 %
molar percentage.
In this work, the effect of electric permittivity and thin layer thickness on the energy
gape has been studied in a system consisting of three thin layers by means of finding the
self action potential of charge carrier located in the central layer
of this system. Then, the
self action potential energy has been found by solving Schrödinger equation at the
extracted potential. This study shows that energy gape of PbI2 decreases with layer
thickness while it increases/decreases according to comparison between dielectric
permittivity values of central layer and counterparts of two neighborhood layers on both sides.
This research aimed to study the ability of both reeds (Phragmites
communis) and poplar trees (Populus nigra V.hamui) to accumulate
Pb and Cu. Where speared naturally prevail on the sides of the
Rumaila River in Jableh town (research site), during 2014-2015.
This study has been conducted to identify the levels of heavy
metals (lead, cadmium, nickel, cobalt, copper, iron, manganese, and
zinc) in the following spices: Nutmeg, turmeric, cinnamon, ginger,
cardamom, nigella sativa, black pepper, cumin, coriander, curry,
and mixed spices.
The objective of this research is to model the dynamic
characteristics of lead-acid batteries taking into account their
fundamental phenomena (the electric double-layer, the charge
transfer and diffusion phenomenon due to oxidation and reduction
reactions). The value of the equivalent circuit elements used in
modeling is determined experimentally using a pulsed discharge of
the battery.
