scholarly journals Correction to: $$\ell_{1}$$ Common Trend Filtering

2021 ◽  
Author(s):  
Hiroshi Yamada ◽  
Ruoyi Bao
Keyword(s):  
Common Trend

INFLUENCE OF WEEKLY CHANGES IN TEMPERATURE AND LIGHT REGIMES ON THE INCIDENCE OF BLOTCHY RIPENING OF TOMATOES

1974 ◽  
Vol 54 (1) ◽  
pp. 129-133
Author(s):  
T. MATSUMOTO ◽  
C. A. HORNBY
Keyword(s):  
Cumulative Effect ◽  
Controlled Environment ◽  
Diurnal Changes ◽  
Light Regimes ◽  
Common Trend ◽  
Cloudy Weather ◽  
Two Factors ◽  
Temperature Levels ◽  
Greenhouse Tomatoes ◽  
Compensatory Effect

The hypothesis that blotchy ripening (BR) of greenhouse tomatoes (Lycopersicon esculentum Mill.) was associated with a cumulative effect of alternating periods of bright sunshine and cloudy weather was tested in controlled environment chambers. Temperatures were programed to give diurnal changes between 11.7 C/26.7 C night/day representing sunny days, and 11.7 C/21.2 C night/day for cloudy days. The two levels of light were (1) 18,299 lx for sunny days, and (2) 16,656 lx for cloudy days. These two factors were combined in four regimes to represent (1) sunny-day temperature and light; (2) sunny-day temperature and alternate weeks of sunny-day and cloudy-day light; (3) alternate weeks of sunny-day and cloudy-day temperature and sunny-day light; and (4) alternate weeks of sunny-day temperature and light, and cloudy-day temperature and light. Four series of plants showed a common trend. Consistent sunny-day temperature and alternating weeks of sunny or cloudy-day light produced the highest incidence of BR. Alternating weeks of temperature levels with consistent sunny-day light produced less BR but not significantly so. When sunny-day temperature and light were alternated weekly with cloudy day conditions, there was a reduced percentage of BR and less severe symptoms. This regime suggests a compensatory effect when temperature is varied directly with changes in light intensity. The regime for consistent sunny-day temperature and light gave the lowest BR incidence with mild symptoms.

scholarly journals Biofilm physical structure, internal diffusivity and tortuosity

2005 ◽  
Vol 52 (7) ◽  
pp. 77-84 ◽  
Author(s):  
L.F. Melo
Keyword(s):  
Laminar Flow ◽  
Research Group ◽  
Fluid Velocity ◽  
Physical Structure ◽  
Flow Conditions ◽  
Physical Concept ◽  
Common Trend ◽  
Effective Diffusivities ◽  
Biofilm Structure ◽  
Turbulent Flow Conditions

The paper proposes tortuosity as a physical concept particularly useful to interpret internal diffusivities in terms of biofilm structure. Results from different authors are presented showing how average effective diffusivities in biofilms (measured with inert tracers) vary with the fluid velocity: in the case of biofilms formed under turbulent flow conditions, an increase in fluid velocity corresponds to a decrease in the diffusivity, although sometimes this decrease is very slight; however, in laminar flow situations, no common trend is found from research group to research group.

scholarly journals Analyzing the Role of the Permanent and Temporary Shocks in Peru Using the Co-Movements Approach

2021 ◽  
Vol 13 (11) ◽  
pp. 115
Author(s):  
Cesar R. Sobrino
Keyword(s):  
Empirical Work ◽  
Capita Consumption ◽  
Quarterly Data ◽  
Common Trend ◽  
The Common ◽  
Per Capita ◽  
A Minor ◽  
Capita Output ◽  
Per Capita Consumption

In this study, we use the co-movements approach to examine the role of permanent (common trend) and temporary (common cycle) shocks on per capita output, per capita consumption, and per capita investment in Peru, a small open commodity-based economy. Using quarterly data from 1993: Q1 to 2019: Q1, the effects of the temporary shocks are short-lived, and, on average, are a minor source of the variations of macro time series, over 10 quarters. This evidence suggests that the main source of per capita output and per capita consumption variations is the common trend shock which must be related to the 1990s reforms. Moreover, per capita output and per capita consumption are less responsive to unfavorable (favorable) common cycle shocks than per capita investment is. This outcome indicates that per capita investment has a much more volatile cycle than per capita private output and per capita consumption which is consistent with a previous empirical work.

scholarly journals The dynamics of farm milk price formation in Brazil

2010 ◽  
Vol 48 (1) ◽  
pp. 41-61 ◽  
Author(s):  
Kennya Beatriz Siqueira ◽  
Richard Lee Kilmer ◽  
Antônio Carvalho Campos
Keyword(s):  
Unit Root Test ◽  
Price Formation ◽  
Impulse Response Functions ◽  
Spatial Integration ◽  
Mato Grosso ◽  
Speed Of Adjustment ◽  
Common Trend ◽  
Self Sufficiency ◽  
Milk Market ◽  
Mato Grosso Do Sul

Dairy is a highly relevant segment of the Brazilian agribusiness economy. However, this segment has changed significantly after deregulation Thus, it is worthwhile to know what the changes are in the spatial integration of the market and in milk price formation at the farm level after deregulation. The methodology is a modification of Gonzalez-Rivera & Helfand (2001), which is compounded in extension of the market, pattern of integration, and degree of integration. The extension of the market is determined through the measure of self-sufficiency index, unit root test, and Johansen test. The last one is focused on the searching for a common trend between the time series. The pattern of interdependence is studied using the Directed Acyclic Graph (DAG). Lastly, the degree of integration is measured by the impulse response functions derived from the Bernanke decomposition. As a result, we found that the milk market in Brazil is composed by Goiás, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Paraná, Rio de Janeiro, Rio Grande do Sul, Santa Catarina, and São Paulo. We also discovered that these markets have small speed of adjustment to shocks and there is no leader in milk price formation.

scholarly journals Morphological, anatomical, physiological and biochemical adaptations of Pittosporum tobira (Thunb.) W.T.Aiton and P. heterophyllum Franch. to the illumination level

2019 ◽  
Keyword(s):  
Photosynthetic Apparatus ◽  
Illumination Level ◽  
Low Light ◽  
Interspecific Differences ◽  
Common Trend ◽  
Sensitive Organ ◽  
Anatomical Adaptations ◽  
Intense Solar Radiation ◽  
Diagnostic Indicator ◽  
Physiological And Biochemical

Anatomical, morphological, physiological and biochemical adaptations of leaf as the most ecologically sensitive organ in the species P. tobira and P. heterophyllum, grown in the zones of greenhouse complex with different degree of illumination (1 zone – the level of illumination is 100–300 lx, zone 2 – 3000–7000 lx, and zone 3 – more than 10 thousand lx).) were studied. We revealed the structural morphological and anatomical adaptations, which manifested in the increase of leaf structure xeromorphy (thickening of the leaf, adaxial epidermis and columnar parenchyma, increasing pubescence density) under conditions of high insolation. With a low level of illumination in plants of both species, the thickness of the lamina decreased, mainly due to the mesophyll – the number of layers of the columnar parenchyma and the size of the cells reduced. Interspecific differences in the content of photosynthetic pigments in both species studied were found. A common trend in plants under low light conditions was decrease of chlorophyll a compared with the control, whereas the concentration of chlorophyll b in the leaves of plants increased with shading and high insolation. The result of the adaptation of the photosynthetic apparatus of Pittosporum plants, which normalizes its functioning, is a decreasing chlorophyll index both during shading and intense solar radiation. The maximum is determined in the range of 3–7 thousand lx. Such light regime is optimal for plants of the species studied. The observed decreasing pigment index in P. heterophyllum leaves is considered as an adaptive response of more light-loving species of the genus to their cultivation in the shade. The dependence of the peroxidase activity in Pittosporum leaves on the illumination level was studied. Adaptive reactions manifested in changes of peroxidase fractional composition in the leaves of the plants grown in different conditions. The obtained results on the activation and inactivation of the enzymatic activity of free and cell wall-associated peroxidase are interesting for using as an additional diagnostic indicator of stress degree for the plants of the interiors. It was established that adaptive changes in experimental plants were determined by the origin of species and their ecological and biological features.

scholarly journals Tropospheric Ozone Assessment Report: Present-day ozone distribution and trends relevant to human health

Elem Sci Anth ◽  
2018 ◽  
Vol 6 ◽  
Author(s):  
Zoë L. Fleming ◽  
Ruth M. Doherty ◽  
Erika von Schneidemesser ◽  
Christopher S. Malley ◽  
Owen R. Cooper ◽  
...  
Keyword(s):  
East Asia ◽  
Tropospheric Ozone ◽  
Warm Season ◽  
The Other ◽  
Daily Maximum ◽  
Assessment Report ◽  
Common Trend ◽  
Nighttime Lights ◽  
Ozone Trends ◽  
Other World

This study quantifies the present-day global and regional distributions (2010–2014) and trends (2000–2014) for five ozone metrics relevant for short-term and long-term human exposure. These metrics, calculated by the Tropospheric Ozone Assessment Report, are: 4th highest daily maximum 8-hour ozone (4MDA8); number of days with MDA8 > 70 ppb (NDGT70), SOMO35 (annual Sum of Ozone Means Over 35 ppb) and two seasonally averaged metrics (3MMDA1; AVGMDA8). These metrics were explored at ozone monitoring sites worldwide, which were classified as urban or non-urban based on population and nighttime lights data. Present-day distributions of 4MDA8 and NDGT70, determined predominantly by peak values, are similar with highest levels in western North America, southern Europe and East Asia. For the other three metrics, distributions are similar with North–South gradients more prominent across Europe and Japan. Between 2000 and 2014, significant negative trends in 4MDA8 and NDGT70 occur at most US and some European sites. In contrast, significant positive trends are found at many sites in South Korea and Hong Kong, with mixed trends across Japan. The other three metrics have similar, negative trends for many non-urban North American and some European and Japanese sites, and positive trends across much of East Asia. Globally, metrics at many sites exhibit non-significant trends. At 59% of all sites there is a common direction and significance in the trend across all five metrics, whilst 4MDA8 and NDGT70 have a common trend at ~80% of all sites. Sensitivity analysis shows AVGMDA8 trends differ with averaging period (warm season or annual). Trends are unchanged at many sites when a 1995–2014 period is used; although fewer sites exhibit non-significant trends. Over the longer period 1970–2014, most Japanese sites exhibit positive 4MDA8/SOMO35 trends. Insufficient data exist to characterize ozone trends for the rest of Asia and other world regions.

Produktdiversifizierung: Konvergenz zwischen ost- und westdeutschen Unternehmen / Product Diversification: Have East-German Enterprises Caught-Up with the West?

2007 ◽  
Vol 227 (2) ◽  
Author(s):  
Bernd Görzig ◽  
Martin Gornig ◽  
Axel Werwatz
Keyword(s):  
Economic Performance ◽  
Core Competencies ◽  
International Markets ◽  
Product Diversification ◽  
Micro Data ◽  
The West ◽  
Manufacturing Enterprises ◽  
Common Trend ◽  
Structural Differences ◽  
East German

SummaryIn the aftermath of Germany’s reunification, redesigning their product range was a major challenge for East-German enterprises. At the same time, there were growing signs that Western enterprises reacted to globalization and European integration by increasingly pursuing strategies of specialization. Using representative micro data from Germany’s system of register based, official firm surveys, this paper studies how manufacturing enterprises from both parts of the country reshaped their product policies in recent years.Our analysis reveals a common trend towards greater specialization during the period from 1995 to 2001. This process of focusing on their core competencies and reducing their range of products was more pronounced in the East - most likely as a result of the increased integration of Eastern firms into international markets.We apply a nonparametric decomposition that yields estimates of the structural and regional components of the West-East gap. We find that in 2001 no significant gap remains among Eastern and Western enterprises of a similar, comparable type. However, there still exist pronounced structural differences. In particular, in 2001 East Germany is still lacking the large firms in many industries that push up the level of West German product diversification and economic performance.

Physical fitness for sedentary students: a common trend from six European countries

2019 ◽  
Vol 59 (8) ◽  
Author(s):  
Nicola Lovecchio ◽  
Dario Novak ◽  
Jaromir Sedlacek ◽  
Pal Hamar ◽  
Ivana Milanovic ◽  
...  
Keyword(s):  
Physical Fitness ◽  
European Countries ◽  
Common Trend

THE USAGE OF UAVs AND REQUIREMENTS IN MODERN COMBATS

2020 ◽  
pp. 218-222
Author(s):  
Long
Keyword(s):  
Social Life ◽  
Industrial Revolution ◽  
Science And Technology ◽  
Fourth Industrial Revolution ◽  
Common Trend ◽  
Modern Warfare

The strong development of science and technology, especially the outstanding achievements in the recent fourth industrial revolution, has created many changes in the fields of social life. Especially in the fields of military in general, combat activities in particular, the application of scientific and technological achievements to improve the effectiveness of commanders and staffs contributing to creating breakthroughs in construction, regular, modern and elite armies of all countries' army. Recently, the use of UAVs, the quintessential product of science and technology, has brought a lot of effectiveness in modern combat operations, especially in reconnaissance and targeting targets in difficult combat conditions. From that common trend, the article generalized the history, discussed and posed a number of characteristics of requirements and design for UAVs to meet the new requirements of modern warfare.

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