scholarly journals Analysis and forecast spatiotemporal distribution of thunderstorms and hail the territory of Belarus

2019 ◽  
pp. 35-45
Author(s):  
Piotr S. Lopukh ◽  
Katsiaryna S. Berazhkova
Keyword(s):  
Spatial Distribution ◽  
Rapid Growth ◽  
Temporal Patterns ◽  
Weather Forecast ◽  
Spatiotemporal Distribution ◽  
High Quality ◽  
Instrumental Data ◽  
Real Mode ◽  
To Receive

The article is devoted to the study of the problem of ensuring the safety of aircraft during take-off and landing. Thunderstorm and hail is one of the most dangerous meteorological phenomena in aviation. To prevent accidents associated with these phenomena, it is necessary to clearly understand the patterns of their occurrence and spatial distribution. In connection with the rapid growth of passenger and cargo traffic, it is necessary to be able to receive and provide actual meteorological information in real mode, as well as to be able to receive high-quality and timely weather forecast. To study the spatial-temporal patterns of the distribution of thunderstorms and hail, Belgidromet’s meteorological instrumental data for 1989–2016 was processed, synoptic maps were analyzed in comparison with calculated forecasts, including WRF, and maps were made using ArcGIS.

scholarly journals Edelmetallgegenstände als Quellen zu sozialen Prozessen der Spätawarenzeit (8.–9. Jahrhundert n. Chr.)

2021 ◽  
Vol 72 (2) ◽  
pp. 417-452
Keyword(s):  
Spatial Distribution ◽  
Precious Metal ◽  
Eighth Century ◽  
Carpathian Basin ◽  
Early Medieval ◽  
High Quality ◽  
Cultural Changes ◽  
Archaeological Material ◽  
Metal Artefacts ◽  
The Social

Abstract The present paper analyses the precious metal artefacts, scarcely known in the huge archaeological material of the “late Avar period” (eighth to early ninth centuries AD). Unlike in the previous era the majority of the gold and silver objects of the late Avar period are stray finds; in particular high-quality goldsmith's artefacts are absent in the grave assemblages of the eighth century. The significance of precious metal objects in grave assemblages reached its low ebb around the middle of the late Avar period; afterwards not only new object types appeared but a new grave-horizon emerged comprising precious metal objects. This paper, based on the quality and morphology of the objects, their archaeological contexts as well as their spatial distribution, draws a conclusion concerning the social and cultural changes in the early medieval Carpathian Basin.

Microscopic Spatial Distribution of Bound Excitons in High-Quality ZnO

2005 ◽  
pp. 1065-0
Author(s):  
F. Bertram ◽  
Daniel Forster ◽  
J. Christen ◽  
N. Oleynik ◽  
Armin Dadgar ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
High Quality

Conducting Goals-of-Care Discussions Takes Less Time Than Imagined

2020 ◽  
Vol 16 (12) ◽  
pp. e1499-e1506
Author(s):  
Sofya Pintova ◽  
Ryan Leibrandt ◽  
Cardinale B. Smith ◽  
Kerin B. Adelson ◽  
Jason Gonsky ◽  
...  
Keyword(s):  
Cancer Progression ◽  
High Quality ◽  
Goals Of Care ◽  
Coaching Model ◽  
Face To Face ◽  
Significant Difference ◽  
Encounter Time ◽  
Face Time ◽  
To Receive

PURPOSE: To describe the length of encounter during visits where goals-of-care (GoC) discussions were expected to take place. METHODS: Oncologists from community, academic, municipal, and rural hospitals were randomly assigned to receive a coaching model of communication skills to facilitate GoC discussions with patients with newly diagnosed advanced solid-tumor cancer with a prognosis of < 2 years. Patients were surveyed after the first restaging visit regarding the quality of the GoC discussion on a scale of 0-10 (0 = worst; 10 = best), with ≥ 8 indicating a high-quality GoC discussion. Visits were audiotaped, and total encounter time was measured. RESULTS: The median face-to-face time oncologists spent during a GoC discussion was 15 minutes (range, 10-20 minutes). Among the different hospital types, there was no significant difference in encounter time. There was no difference in the length of the encounter whether a high-quality GoC discussion took place or not (15 v 14 minutes; P = .9). If there was imaging evidence of cancer progression, the median encounter time was 18 minutes compared with 13 minutes for no progression ( P = .03). In a multivariate model, oncologist productivity, patient age, and Medicare coverage affected duration of the encounter. CONCLUSION: Oncologists can complete high-quality GoC discussions in 15 minutes. These data refute the common misperception that discussing such matters with patients with advanced cancer requires significant time.

Pig Meat Quality as Affected by Genetics and Production Systems

1995 ◽  
Vol 24 (1) ◽  
pp. 17-22 ◽  
Author(s):  
M. Ellis ◽  
F.K. Mckeith
Keyword(s):  
Meat Quality ◽  
Production Systems ◽  
Water Holding Capacity ◽  
Eating Quality ◽  
High Quality ◽  
Pig Production ◽  
Pig Meat ◽  
On Farm ◽  
To Receive ◽  
Water Holding

The efficiency of pig production has increased considerably in recent years, but the improvement of meat quality has only recently begun to receive attention. Closer links between the producers and marketers of pigs are now resulting in a clearer understanding of the factors that lead to meat of high quality. Here, some of the major on-farm influences on meat quality are described, focussing on meat colour, water-holding capacity and eating quality.

Consistency in seed-deposition patterns and the distribution of mistletoes among its host trees in an Amazonian savanna

2009 ◽  
Vol 57 (8) ◽  
pp. 640 ◽  
Author(s):  
Rodrigo Ferreira Fadini ◽  
Danielly Caroline Miléo Gonçalves ◽  
Rúbia Patrícia Fernandes Reis
Keyword(s):  
Spatial Distribution ◽  
Field Experiment ◽  
Host Size ◽  
Host Quality ◽  
Deposition Patterns ◽  
Seed Disperser ◽  
Crown Diameter ◽  
Host Trees ◽  
Cashew Tree ◽  
To Receive

The present paper describes the spatial distribution of the mistletoe Psittacanthus plagiophyllus Eichl. (Loranthaceae) on its host, the cashew tree Anacardium occidentale L., in a Brazilian Amazonian savanna. Our aim was to understand the roles of bird-seed dispersers and host quality in determining the mistletoe distribution among its host trees. In 2006, we marked 118 cashews in a 4.5-ha plot and counted the number of mistletoes and the presence of seeds attached to host branches in 2006, 2007 and 2008. On average, 36% of the hosts were infected each year. The infection load and the probability of being infected increased significantly with host crown diameter. On average, 25% of the hosts received at least one mistletoe seed in each year, being taller and previously infected hosts more prone to receive seeds in all 3 years. Elaenia cristata was the main seed disperser, visiting P. plagiophyllus 48 times in 35 h of focal records. Additionally, in a field experiment, we used the presence of an infection and the host size as surrogates for host quality and tested their effect on mistletoe survivorship. After 9 months, 16.5% of seeds survived and 14% had established, but neither host conditions nor host size influenced seed survivorship. Therefore, we suggest that mistletoe distribution is a consequence of a consistent dispersal of seeds onto larger and previously parasitised hosts across years.

Value of chicory crops to pasture-based dairy farms in the Waikato region of New Zealand

2014 ◽  
Vol 153 (1) ◽  
pp. 124-137 ◽  
Author(s):  
A. J. ROMERA ◽  
G. J. DOOLE ◽  
E. N. KHAEMBAH
Keyword(s):  
New Zealand ◽  
Linear Optimization ◽  
Dairy Farms ◽  
High Quality ◽  
Pasture Production ◽  
Relative Growth ◽  
Increase Milk Production ◽  
Broad Variation ◽  
Milk Solids ◽  
To Receive

SUMMARYChicory (Cichorium intybusL.) crops can increase milk production on New Zealand dairy farms through providing high-quality feed in late lactation. Non-linear optimization models of three Waikato dairy farms, differing in the degree to which imported supplement is used, were employed to evaluate chicory crops in this environment. At a baseline milk price of $NZ 7/kg milk solids, it was only profitable for chicory to be used on a farm where no imported supplement was fed. However, even then, only 0·04 of the farm area was planted and profit only increased by $NZ 30/ha (0·006 of baseline profit), relative to where it was not used. It was not optimal to plant any chicory on farms where imported feed was available, at the baseline milk price and cost of establishment considered here. This was evident because imported feed is more flexible than chicory for filling temporary feed gaps; also its use does not displace pasture production. Sensitivity analysis indicated that the unprofitability of chicory is robust to broad variation in calving date and the relative growth of chicory and pasture. Overall, results indicate that farmers are unlikely to receive adequate reward for the additional complexity arising from the utilization of chicory crops, especially when imported supplement provides more flexibility.

scholarly journals Temporal Patterns of Emergence and Spatial Distribution of Sulcal Pits During Fetal Life

2020 ◽  
Vol 30 (7) ◽  
pp. 4257-4268
Author(s):  
Hyuk Jin Yun ◽  
Lana Vasung ◽  
Tomo Tarui ◽  
Caitlin K Rollins ◽  
Cynthia M Ortinau ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Fetal Brain ◽  
Temporal Patterns ◽  
Adult Brain ◽  
Fetal Life ◽  
Anatomical Landmarks ◽  
Typically Developing ◽  
Additional Information ◽  
Functional Development ◽  
Functional Localization

Abstract Sulcal pits are thought to represent the first cortical folds of primary sulci during neurodevelopment. The uniform spatial distribution of sulcal pits across individuals is hypothesized to be predetermined by a human-specific protomap which is related to functional localization under genetic controls in early fetal life. Thus, it is important to characterize temporal and spatial patterns of sulcal pits in the fetal brain that would provide additional information of functional development of the human brain and crucial insights into abnormal cortical maturation. In this paper, we investigated temporal patterns of emergence and spatial distribution of sulcal pits using 48 typically developing fetal brains in the second half of gestation. We found that the position and spatial variance of sulcal pits in the fetal brain are similar to those in the adult brain, and they are also temporally uniform against dynamic brain growth during fetal life. Furthermore, timing of pit emergence shows a regionally diverse pattern that may be associated with the subdivisions of the protomap. Our findings suggest that sulcal pits in the fetal brain are useful anatomical landmarks containing detailed information of functional localization in early cortical development and maintaining their spatial distribution throughout the human lifetime.

scholarly journals Stoichiometric controls of mercury dilution by growth

2007 ◽  
Vol 104 (18) ◽  
pp. 7477-7482 ◽  
Author(s):  
Roxanne Karimi ◽  
Celia Y. Chen ◽  
Paul C. Pickhardt ◽  
Nicholas S. Fisher ◽  
Carol L. Folt
Keyword(s):  
Steady State ◽  
Rapid Growth ◽  
Daphnia Pulex ◽  
Somatic Growth ◽  
Aquatic Organisms ◽  
High Quality ◽  
Nutrient Quality ◽  
Ingestion Rates ◽  
Biokinetic Model ◽  
Ankistrodesmus Falcatus

Rapid growth could significantly reduce methylmercury (MeHg) concentrations in aquatic organisms by causing a greater than proportional gain in biomass relative to MeHg (somatic growth dilution). We hypothesized that rapid growth from the consumption of high-quality algae, defined by algal nutrient stoichiometry, reduces MeHg concentrations in zooplankton, a major source of MeHg for lake fish. Using a MeHg radiotracer, we measured changes in MeHg concentrations, growth and ingestion rates in juvenile Daphnia pulex fed either high (C:P = 139) or low-quality (C:P = 1317) algae (Ankistrodesmus falcatus) for 5 d. We estimated Daphnia steady-state MeHg concentrations, using a biokinetic model parameterized with experimental rates. Daphnia MeHg assimilation efficiencies (≈95%) and release rates (0.04 d−1) were unaffected by algal nutrient quality. However, Daphnia growth rate was 3.5 times greater when fed high-quality algae, resulting in pronounced somatic growth dilution. Steady-state MeHg concentrations in Daphnia that consumed high-quality algae were one-third those of Daphnia that consumed low-quality algae due to higher growth and slightly lower ingestion rates. Our findings show that rapid growth from high-quality food consumption can significantly reduce the accumulation and trophic transfer of MeHg in freshwater food webs.

scholarly journals Introduction

2011 ◽  
Vol 4 (1) ◽  
pp. v-vii
Author(s):  
Keyword(s):  
Comic Strip ◽  
High Quality ◽  
Future Directions ◽  
Hypnerotomachia Poliphili ◽  
Comic Art ◽  
To Receive

Future directions are often shaped by quirks of necessity or chance: the groundbreaking iconoclast that is Moebius’s Garage hermétique, with its rejection of conventional narrative or character coherence, came as a result of the author having forgotten previous scripts from one week to the next; Rodolphe Töpffer, so often credited for having invented the modern comic strip, initially saw himself as producing no more than scribblings for the entertainment of his pupils; one of the earliest of text/image forms, the emblem, may well be the result of Augsburg printer, Heinrich Steiner, adding images in 1531 to Andrea Alciato’s epigrams, a far cry from the composed intertwining of Francesco Colonna’s Hypnerotomachia Poliphili of 1499. Mirroring such processes in our own way, European Comic Art is embarking on a new direction, as we turn to issues that can reflect the diversity of comic art rather than being necessarily united by a single theme. It is a logical direction, but also one shaped by chance and necessity, that of the diversity of high-quality submissions that we have been delighted to receive.

Sign in / Sign up

Export Citation Format

Share Document