bluuebunny/crossref_metadata_2025 huggingface dataset:
Correcting for filter-based aerosol light absorption biases at ARM’s SGP site using Photoacoustic data and Machine Learning
Authors: Kumar Joshin , Paik Theo , Shetty Nishit , Sheridan Patrick , Aiken Allison , Dubey Manvendra , Chakrabarty Rajan
Published: March 2022

Abstract. Measurement of light absorption of solar radiation by aerosols is vital for assessing direct aerosol radiative forcing, which affects local and global climate. Low-cost and easy-to-operate filter-based instruments, such as the Particle Soot Absorption Photometer (PSAP) that collect aerosols on a filter and measure light attenuation through the filter are widely used to infer aerosol light absorption. However, filter-based absorption measurements are subject to artifacts which are difficult to quantify. These artifacts are associated with the presence of the filter medium and the complex interactions between the filter fibers and accumulated aerosols. Various correction algorithms have been introduced to correct for the filter-based absorption coefficient measurements toward predicting the particle-phase absorption coefficient (Babs). Since previously-developed correction algorithms have a fixed analytical form, fundamentally, they are unable to predict particle phase absorption coefficients with a high degree of accuracy universally: different corrections are required for rural and urban sites across the world. In this study, we analyzed three months of high-resolution ambient data collected using a 3-wavelength photoacoustic spectrometer (PASS) and PSAP on the same inlet; both instruments were operated at the Department of Energy’s Atmospheric Radiation Measurement (ARM) Southern Great Plains user facility in Oklahoma. We implemented the two most commonly used analytical correction algorithms, namely the Virkkula (2010) and the average of Virkkula (2010) and Ogren (2010)-Bond (1999), as well as a Random Forest Regression (RFR) machine learning algorithm to infer particle phase Babs values from PSAP data and estimate their accuracy in comparsion to the refernce Babs values measured synchronously by the PASS. The wavelength averaged Root Mean Square Error (RMSE) values of Babs predicted using the RFR algorithm are improved by an order of magnitude in comparison to those predicted by the Virkulla (2010) and average correction algorithms. A revised form of the Virkkula (2010) algorithm suitable for the SGP site has been proposed; however, its performance yields approximately two fold errors when compared to the RFR algorithm. To further improve the accuracy of our proposed RFR algorithm, we trained and tested the model on dataset of laboratory-generated combustion aerosols. The RFR model used as inputs the size distribution, uncorrected Tricolor Absorption Photometer (TAP)-measured Babs, and nephelometer-measured scattering coefficient Bscat and predicted particle-phase Babs values within 5% of the reference Babs measured by a PASS. Machine learning approaches offers a promising path to correct for biases in long term filter-based absorption datasets and accurately quantify their variability and trends needed for robust radiative forcing determination.
An Unmanned Aerial System (UAS) based methodology for measuring biomass burning emission factors
Authors: Vernooij Roland , Winiger Patrik , Wooster Martin , Strydom Tercia , Poulain Laurent , Dusek Ulrike , Grosvenor Mark , Roberts Gareth , Schutgens Nick , van der Werf Guido
Published: March 2022

Abstract. Biomass burning (BB) emits large quantities of greenhouse gases (GHG) and aerosols that impact climate and adversely affect human health. Although much research has focused on quantifying BB emissions on regional to global scales, field measurements of BB emission factors (EFs) are sparse, clustered and indicate high spatio-temporal variability. EFs are generally calculated from ground- or aeroplane measurements with respective potential biases towards smouldering or flaming combustion products. Unmanned aerial systems (UAS) have the potential to measure BB EFs in fresh smoke, targeting different parts of the plume at relatively low cost. We propose a light-weight UAS-based method to measure EFs for carbon monoxide (CO), carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O), as well as PM2.5 (TSI Sidepak AM520) and equivalent black carbon (eBC, microAeth AE51) using a combination of a sampling system with Tedlar bags which can be analysed on the ground and airborne aerosol sensors. In this study, we address the main uncertainties associated with this approach (1) the degree to which taking a limited number of samples is representative for the integral smoke plume and including (2) the reliability of the lightweight aerosol sensors. This was done for prescribed burning experiments in the Kruger national park, South Africa where we compared fire-averaged EF from UAS-sampled bags for savanna fires to integrated EFs from co-located mast measurements. Both measurements matched reasonably well with linear R2 ranging from 0.81 to 0.94. Both aerosol sensors are not factory calibrated for BB particles and therefore require additional calibration. In a series of smoke chamber experiments, we compared the lightweight sensors to high-fidelity equipment to empirically determine specific calibration factors (CF) for measuring BB particles. For the PM mass concentration from a TSI Sidepak AM520, we found an optimal CF of 0.27, using a scanning mobility particle sizer and gravimetric reference methods, albeit that the CF varied for different vegetation fuel types. Measurements of eBC from the Aethlabs AE51 aethalometer agreed well with the multi-wavelength aethalometer (AE33) (linear R2 of 0.95 at λ = 880 nm) and the wavelength corrected Multi-Angle Absorption Photometer (MAAP, R2 0.83 measuring at λ = 637 nm). However, the high variability in observed BB mass absorption cross-section (MAC) values (5.2 ± 5.1 m2 g-1) suggested re-calibration may be required for individual fires. Overall, our results indicate that the proposed UAS setup can obtain representative BB EFs for individual savanna fires if proper correction factors are applied and operating limitations are well understood.
Impact of the revisit frequency on cloud climatology for CALIPSO, EarthCARE, Aeolus, and ICESat-2 satellite lidar missions
Authors: Kotarba Andrzej Z.
Published: March 2022

Abstract. Space profiling lidars offer a unique insight into cloud properties in Earth’s atmosphere, and are considered the most reliable source of total (column-integrated) cloud amount (CA), and true (geometrical) cloud top height (CTH). However, lidar-based cloud climatologies suffer from infrequent sampling: every n-days, and only along the ground track. This study therefore evaluated four lidar missions, namely CALIPSO (revisit every n = 16 days), EarthCARE (n = 25), Aeolus (n = 7), and ICESat-2 (n = 91), to test the hypothesis that each mission provides accurate data on CA and CTH. CA/CTH values for a hypothetical daily revisit mission were used as reference (data simulated with Meteosat 15-minute cloud observations, assumed to be a proxy for ground truth). Our results demonstrated that this hypothesis is invalid, unless individual lidar transects are averaged over an area 10×10° in longitude and latitude (or larger). If this is not the case, the required accuracy of 1 % (for CA) or 150 m (for CTH) cannot be met, either for a single-year annual or monthly mean, or for a >10-year climatology. A CALIPSO-focused test demonstrated that the annual mean CA estimate is very sensitive to infrequent sampling, and that this factor alone can result in 14 % or 7 % average uncertainty with 1° or 2.5° resolution data, respectively. Consequently, applications that use gridded lidar data should consider calculating confidence intervals, or a similar measure of uncertainty. Our results suggest that CALIPSO, and its follow-on mission EarthCARE, are very likely to produce consistent cloud records despite the difference in sampling frequency.
Investigating hydroclimatic impacts of the 168–158 BCE volcanic quartet and their relevance to the Nile River basin and Egyptian history
Authors: Singh Ram , Tsigaridis Kostas , LeGrande Allegra N. , Ludlow Francis , Manning Joseph G.
Published: March 2022

Abstract. The Ptolemaic era (305–30 BCE) represents an important period of Ancient Egyptian history known for its major material and scientific advances, but also ongoing episodes of political and social unrest in the form of (sometimes widespread) revolts against the Ptolemaic elites. While the role of environmental pressures has long been overlooked in this period of Egyptian history, ice-core-based volcanic histories have identified the period as experiencing multiple notable eruptions, and a repeated temporal association between explosive volcanism and revolt has recently been noted. Here we analyze the global and regional (Nile River Basin) climate response to a unique historical case of 4 consecutive and closely timed eruptions (first a tropical one, closely followed by 3 extratropical northern hemispheric events) between 168 and 158 BCE, a particularly troubled period in Ptolemaic history for which we now provide a more detailed hydroclimatic context. The NASA GISS ModelE Earth system model simulates a strong radiative response with a radiative forcing (Top of atmosphere) of -7.5 W/m2 (following the first eruption) and -4.0 w/m2 (after each of the 3 remaining eruptions) at a global scale. Associated with this, we observe a global cooling of the order of 1.5°C at the surface following the first (tropical) eruption, with the following three extratropical eruptions extending the cooling period for more than 15 years. Consequently, this series of eruptions constrained the northward migration of the inter-tropical convergence zone (ITCZ) during the northern hemisphere summer monsoon season, and major monsoon zones (African, South and East Asian) experienced suppression of rainfall >1 mm/day during the monsoon (JJAS) season averaged for 2 years after each eruption. A substantial suppression of north African and Indian summer monsoon over the Nile River headwater region vigorously affects the river flow in the catchment and river discharge. River mass flow consecutively decreases by up to more than 30 % relative to an unperturbed from volcanoes annual mean flow for 2 years after the tropical eruption. A moderate decrease of up to 15–20 % is produced after each of the remaining eruptions. These results show that the first eruption produces a strong hydroclimate response, and the following 3 eruptions prolonged the drying conditions. These results also support the contention that the observed association between ice-core-based signals of explosive volcanism and the hydroclimatic impact of these eruptions during the Ptolemy era, including the suppression of the critical for agriculture Nile summer flooding.
Multi-dimensional hydrological-hydraulic model with variational data assimilation for river networks and floodplains
Authors: Pujol Léo , Garambois Pierre-André , Monnier Jérôme
Published: March 2022

Abstract. This contribution presents a novel multi-dimensional (multi-D) hydraulic-hydrological numerical model with variational data assimilation capabilities. It allows multi-scale modeling over large domains, combining in situ observations with high-resolution hydro-meteorology and satellite data. The multi-D hydraulic model relies on the 2D shallow water equations solved with a 1D2D adapted single finite volume solver. 1Dlike reaches are built through meshing methods that cause the 2D solver to degenerate into 1D. They are connected to 2D portions that act as local zooms, for modeling complex flow zones such as floodplains and confluences, via 1Dlike-2D interfaces. An existing parsimonious hydrological model, GR4H, is implemented and coupled to the hydraulic model. The forward-inverse multi-D computational model is successfully validated on academic and real cases of increasing complexity, including using the second order scheme version. Assimilating multiple observations of flow signatures leads to accurate inferences of multi-variate and spatially distributed parameters among bathymetry-friction, upstream/lateral hydrographs, and hydrological model parameters. This notably demonstrates the possibility for information feedback towards upstream hydrological catchments, that is backward hydrology. A 1Dlike model of part of the Garonne river is built and accurately reproduces flow lines and propagations of a 2D reference model. A multi-D model of the complex Adour basin network, inflowed by the semi-distributed hydrological model, is built. High resolution flow simulations are obtained on a large domain, including fine zooms on floodplains, with a relatively low computational cost since the network contains mostly 1Dlike reaches. The current work constitutes an upgrade of the Dassflow computational platform. The adjoint of the whole tool chain is obtained by automatic code differentiation.
Late Holocene cryptotephra and a provisional 15 000-year Bayesian age model for Cascade Lake, Alaska
Authors: Davies Lauren J. , Jensen Britta J. L. , Kaufman Darrell S.
Published: March 2022

Abstract. Multiple chronometers can be employed for dating Holocene
palaeoenvironmental records, each with its own inherent strengths and
weaknesses. Radiocarbon dating is one of the most widely used techniques for
producing chronologies, but its application at high-latitude sites can
sometimes be problematic. Here, cryptotephra were identified in a core from
Cascade Lake, Arctic Alaska, and used to identify and resolve an age bias in
Late Holocene radiocarbon dates from the top 1.42 m of the sediment
sequence. Identifiable geochemical populations of cryptotephra are shown to
be present in detectable concentrations in sediment from the north flank of
the Brooks Range for the first time. Major-element glass geochemical
correlations are demonstrated between ultra-distal cryptotephra and
reference samples from the Late Holocene caldera-forming eruption of Opala,
Kamchatka, as well as three eruptions in North America: the White River Ash
(northern lobe), Ruppert tephra and the Late Holocene caldera-forming
eruption of Aniakchak. The correlated ages of these cryptotephra provide
evidence for an old-carbon effect and support preliminary palaeomagnetic
secular variation (PSV) correlated ages reported for Cascade Lake.
Chronological data from Cascade Lake were then combined using a Bayesian
approach to generate an age–depth model that extends back through the Late
Holocene and provisionally to 15 000 cal yr BP.
Spatio-temporal analysis of the role of climate cycles on landslide activity: the case of Majorca (Spain)
Authors: Luque-Espinar Juan Antonio , Mateos Rosa María , Sarro Roberto , Peña Eduardo , Reyes-Carmona Cristina , Martínez-Corbella Mónica
Published: March 2022

Abstract. Intense precipitation is one of the main drivers of landslides around the globe. On a global scale, the occurrence of very wet periods is controlled by different, well-known natural cycles: ENSO, NAO, SUNSPOT, etc. In this paper, we present a spatio-temporal analysis of climate cycles on the island of Majorca (Spain) and their correlation with the landslide inventory. Firstly, using spectral analysis techniques, the main climatic cycles that control the rainy periods on the island have been identified. For this purpose, rainfall data from 62 weather stations have been analysed in a comprehensive manner, with time series of more than 30 years. The cycles with the greatest influence on rainfall, from the point of view of statistical confidence, are ENSO (5.6 y and 3.5 y), as well as NAO (7.5 y) and QBO. Then, using geostatistical methods, the distribution of rainfall during dry, average, and wet years was mapped, as was the spatial representation of the statistical significance of the different natural cycles, in order to define the areas of greatest danger from heavy rainfall. The Serra de Tramuntana is not only the rainiest region of the island, but also the area where the highest values of statistical confidence for the set of climatic cycles are concentrated. The 5 largest landslides of the series are very well located in the areas of highest statistical weight, mainly for the NAO (7.5 y), QBO and HALO (22.4 y) cycles, as well as in the wettest sector for the wet type year.
Passive tracer advection in the equatorial Pacific region: statistics, correlations and a model of fractional Brownian motion
Authors: Jánosi Imre M. , Padash Amin , Gallas Jason A. C. , Kantz Holger
Published: March 2022

Abstract. Evaluating passive tracer advection is a common tool to study flow structures,
particularly Lagrangian trajectories ranging from molecular scales up to the
atmosphere and oceans. Here we report on numerical experiments in the region
of the tropical Pacific (20∘ S–20∘ N), where 6600 tracer parcels
are advected from a regular initial configuration (along a meridional line at 110∘ W between 15∘ S and 15∘ N) during periods of 1 year for
25 years altogether. We exploit AVISO surface flow fields and solve the kinematic equation for passive tracer movement in the 2D advection tests. We demonstrate that the strength of the advection defined by mean monthly westward displacements of the tracer clouds
exhibit surprisingly large inter- and intra-annular variabilities. Furthermore, an
analysis of cross-correlations between advection strength and the El-Niño and
Southern Oscillation (SOI) indices reveal a significant anticorrelation
between advection intensity and ONI (the Oceanic Niño Index) and a weaker positive
correlation with SOI, both with a time lag of about 3 months (the two indices
are strongly anticorrelated near real time). The statistical properties of
advection (time-dependent mean squared displacement and first passage time distribution) suggest that the
westward-moving tracers can be mapped into a simple 1D stochastic process,
namely fractional Brownian motion. We fit the model parameters and
show by numerical simulations of the fractional
Brownian motion model that it is able to
reproduce the observed statistical properties of the tracers' trajectories well.
We argue that a traditional explanation based on the superposition of ballistic drift and a diffusion term yields different statistics and is incompatible with our observations.
Past changes in natural and managed snow reliability of French Alps ski resorts from 1961 to 2019
Authors: Berard-Chenu Lucas , François Hugues , George Emmanuelle , Morin Samuel
Published: March 2022

Abstract. Snow reliability is a key climatic impact driver for the
ski tourism industry, although there are only a few studies addressing past
changes in snow reliability in ski resorts accounting for snow management
practices (grooming and snowmaking, in particular). This study provides an
assessment of past changes in natural and managed snow cover reliability
from 1961 to 2019 in the French Alps. In particular, we used snowmaking
investment figures to infer the evolution of snowmaking coverage at the ski
resort scale for 16 ski resorts in the French Alps, which we used together
with a detailed snow cover modelling system driven by a local atmospheric
reanalysis. We find different benefits of snow management to reduce the
variability and long-term decrease in snow cover reliability because of the
heterogeneity of the snowmaking deployment trajectories across ski resorts.
The frequency of challenging conditions for ski resort operation over the
1991–2019 period increased in November and February to April compared to the
30-year reference period 1961–1990. In general, snowmaking had a positive
impact on snow reliability, especially in December to January. While for the
highest-elevation ski resorts, snowmaking improved snow reliability for the
core of the winter season, it did not counterbalance the decreasing trend in
snow cover reliability for lower-elevation ski resorts and in the spring.
Rotational drift in Antarctic sea ice: pronounced cyclonic features and differences between data products
Authors: de Jager Wayne , Vichi Marcello
Published: March 2022

Abstract. Sea ice extent variability, a measure based on
satellite-derived sea ice concentration measurements, has traditionally been
used as an indicator to evaluate the impact of climate change on polar
regions. However, concentration-based measurements of ice variability do not
allow the discrimination of the relative contributions made by thermodynamic and
dynamic processes, prompting the need to use sea ice drift products and
develop methods to quantify changes in sea ice dynamics that would indicate
trends in the ice characteristics. Here, we present a new method to automate
the detection of rotational drift features in Antarctic sea ice from space
at spatial and temporal scales comparable to that of polar weather. This
analysis focusses on drift features in the Atlantic sector of the Southern
Ocean in the period 2013–2020 using currently available satellite ice
motion products from EUMETSAT OSI SAF. We observe a large discrepancy
between cyclonic and anticyclonic drift features, with cyclonic features
typically exhibiting larger drift intensity and spatial variability
according to all products. The mean intensity of the 95th percentile of
cyclonic features is 1.5–2.0 times larger for cyclonic features than
anticyclonic features. The spatial variability of cyclonic features
increased with intensity, indicating that the most intense cyclonic features
are also the least homogenous. There is good agreement between products in
detecting anticyclonic features; however, larger disagreement is evident for
cyclonic features, with the merged product showing the most intense 95th
percentile threshold and largest spatial variability, likely due to the more
extended coverage of valid vorticity points. A time series analysis of the
95th percentile shows an abrupt intensification of cyclonic features
from 2014–2017, which coincides with the record decline in Antarctic
sea ice extent since winter of 2015. Our results indicate the need for
systematic assessments of sea ice drift products against dedicated
observational experiments in the weather-dominated Atlantic sector. Such
information will allow us to confirm whether the detected increase in cyclonic
vorticity is linked to rapidly changing atmospheric
changes driven by sea ice dynamics and establish the measure of rotational sea ice drift as a potential
indicator of weather-driven variability in Antarctic sea ice.
Sublimation of frozen CsCl solutions in ESEM: determining the number and size of salt particles relevant to sea-salt aerosols
Authors: Vetráková Ľubica , Neděla Vilém , Runštuk Jiří , Yang Xin , Heger Dominik
Published: March 2022

Abstract. We identified the factors that, during the sublimation of a frozen CsCl solution, are important in generating fine salt particles as a possible source of salt aerosol. The number, size, and structure of the particles that remain after ice sublimation were investigated with respect to the concentration of the salt in the sample, the freezing method, and the sublimation temperature. The last-named aspect is evidently of primary importance for the preference of fine salt crystals over a large compact piece of salt. Independently of the concentration and freezing method tested, the sublimation of the frozen samples above the eutectic temperature (Teu) yielded a large compact piece of salt, namely, an improbable source of aerosol particles. Small salt particles that might be a source of atmospheric aerosols were formed predominantly at the temperatures below Teu, and their structures strongly depended on the concentration of the salt. For example, the sublimation of those samples that exhibited less than 8 psu (0.05 M) often produced small aerosolizable isolated particles readily able to be windblown. Conversely, the sublimation of 78 psu (0.5 M) samples led to the formation of relatively stable and largely interconnected salt structures. Presumably, our findings have important implications because the formed salt particles may assume the role of cloud condensation nuclei and ice-nucleating particles, affect polar atmospheric radiative forcing, and facilitate heterogeneous atmospheric chemistry.
Contestation of Marga Primodialsm in Pakpak Bharat Regency Elections (Study on The Election of The Regent and Vice Regent of Pakpak Bharat Regency in 2020)
Authors: Tumangger Jekki , Ibrahim Ibrahim , Ranto Ranto
Published: March 2022

Primordialism is a view or understanding that holds fast to things that are brought from childhood. Primordialism is one of the factors that often becomes a tool in political battles. Likewise in the Pakpak Bharat Regency area, clan primordialism is an inseparable part of every regional head election. The history of the government of Pakpak Bharat Regency shows the magnitude of the influence of local clans in winning candidates for regional heads. This research was conducted to find out how much influence the clan had in the 2020 Pakpak Bharat district election and how the process of fighting for primoerdialism took place. This study uses a descriptive qualitative approach. The technique used in data collection is by conducting interviews and document data from various agencies. Interviews were conducted to find out how the community's perspective on the influence of the struggle for clan primordialism in the elections of Pakpak Bharat Regency. Then the document data obtained from the agency/institution is supporting data regarding the history, culture and population of the people of Pakpak Bharat Regency. The results of this study describe the clan contestation in the 2020 Pakpak Bharat Regency election and the consequences of this contestation in the life of the Pakpak Bharat Regency community. The position of regional head which has always been won by the Berutu clan for the last 15 years has made its own strength and pride for the Berutu clan, and being the strongest political opponent in the last 10 years was the Tumangger clan and the clan political battle was repeated in 2020 and was won by the Tumangger clan and broke the chain of victories of the Berutu clan for the last 15 years. The contestation of clan primordialism led to clan political wars and reduced harmony between different clan groups.
El Alcázar de Córdoba. Imágenes, historia y arquitectura hasta 1850
Authors: Gámiz Gordo Antonio
Published: March 2022

El Alcázar de Córdoba, un edificio con diversos usos y transformaciones a lo largo de su historia, ha aparecido en imágenes que conforman un valioso y poco conocido legado gráfico. En esta investigación son analizadas atendiendo a su contexto y a su entorno paisajístico y arquitectónico, considerando sus puntos de vista, las técnicas usadas y valorando su precisión e interés artístico. Además se consideran otras fuentes históricas, arqueológicas y la propia realidad patrimonial conservada. Las imágenes se presentan agrupadas por autores y por orden cronológico hasta mediados del XIX, cuando apareció la fotografía como registro documental: primeras imágenes simbólicas (desde 1360); la primera panorámica (Wyngaerde, 1567); la vista del Civitates (h. 1585-1617) y sus plagios; la primera planta (1662); vistas lejanas (Baldi, 1668 y Swinburne, 1779); el primer plano de la ciudad (Karwinsky y Rillo, 1811); la primera vista interior (Taylor, h. 1826-1832); Roberts (1833-37) y sus plagios; detalles de vistas generales (Ford, Girault de Prangey, Vivian, Chapuy y Meyer, 1833-1846); la primera vista aérea (Guesdon, 1853); y las primeras vistas fotográficas (Ferrier y Soulier, h. 1857).
Built Ethnological Heritage: from democratization to democracy
Authors: Pérez Gil Javier
Published: March 2022

Built ethnological heritage is acquiring an increasingly participatory and open meaning, in agreement with new conceptualizations of cultural heritage and an understanding of tradition as a dynamic process. However, there is a contradiction between the regulatory documents associated with cultural heritage that advocate these principles, and the types of cultural expression or assets that they recognize and aim to safeguard. This article aims to draw attention to these inconsistencies and proposes the replacement of the traditional comprehensive paradigm of vernacular architecture – excessively formalistic and focussed on constructions – with one that is more inclusive and culturally centred, in which expressions of modern industrial culture are recognized and where the subject community has agency and is effectively engaged. Furthermore it is t is argued that an understanding of this new architectural heritage be integrated without delay into the democratic structures of our societies. To this end, a process of change is required similar to that previously experienced by other cultural sectors, for instance, within the art world
Reflexiones sobre el espacio público desde los mecanismos disciplinarios y de regulació enunciados por Foucault
Authors: Salinas-Arreortua Luis Alberto , Alcantar-García Erika A.
Published: March 2022

El espacio público, entendido como espacio de socialización y construcción de debates críticos ante problemáticas diversas, ha sido discutido desde distintas perspectivas teóricas que señalan su complejidad, problemática e importancia, e incluso, su extinción en el contexto neoliberal. Sin embargo, han sido pocos los trabajos desde la literatura latinoamericana que analizan determinados comportamientos y la despolitización del espacio público a partir de los mecanismos disciplinarios y de regulación expuestos por Michael Foucault. Mediante una revisión teórica sobre los conceptos de biopolítica y espacio público, se destacan que diversas intervenciones urbanas han incidido en disciplinar al individuo en el uso y apropiación del espacio público y en el control de la población, mediante el autogobierno (gobierno de sí), que emana de la propia sociedad en tanto que regula los comportamientos. De esta manera, se argumenta que el análisis del espacio público desde la biopolítica permite entender el por qué de determinados comportamientos, así como la neutralización del carácter político.
Elementos de frondes Pecopterídeas do Permiano do Extremo Sul da Bacia do Paraná, Brasil
Authors: Cambria Vittor , Cenci Romulo , Netto Renata , Kern Henrique , Cagliari Joice , Sedorko Daniel
Published: March 2022

In this paper we characterize pecopterids found in deposits of the Passa Dois Group (Upper Permian of the Paraná Basin) in a new outcrop, on the side of the BR-153 road, located at the municipality of Aceguá, Rio Grande do Sul State, Brazil. Pecopterids are common in the Permian paleophytogeogragic realms, signaling interglacial phases of the Late Paleozoic. Pecopteris are one of the floral elements of the Permian Glossopteris flora and become extinct in the Permo-Triassic boundary. Mudstone strata levels bearing phytofossils with different preservation qualities allowed the recognition of Pecopteris sp. and cf. Scolecopteris sp. floral elements. Taphonomic and depositional processes that conditioned the preservation of phytofossils are suggested accordingly the specimens described. Phytofossil specimen described support and highlight polymorphic nature of Gondwanan pecopterids. These new findings demonstrate potential for further paleobotanical studies in the upper portion of the Passa Dois Group and strength the notion of Permian strata for the Teresina Formation.
Assessment on a regional scale of the geodiversity of the Southern Urban Agglomeration and its municipalities, Rio Grande do Sul coast, Brazil.
Authors: Porto Daniel Trespach
Published: March 2022

The understanding of the relationships between abiotic components and these with the natural system, especially in coastal areas and densely occupied areas, such as urban agglomerations, has been important to support policies of conservation, preservation, and sustainable regional development. In this sense, the aim of this study was to carry out an assessment on a regional scale of the geodiversity of the Urban Agglomeration of the South (AUSul), the coast of Rio Grande do Sul and its constituent municipalities, through a geodiversity index and the occurrence and distribution of its elements in the region. To construct the index, the abiotic elements considered most relevant for the region’s characteristics and the availability of data approximately compatible with the 1:250,000 scale was qualitatively defined. Subsequently, they were treated with methods of map algebra, resulting in the maps of the sub-indices related to geology, topography and geomorphology, hydrography and soils per municipality, and the geodiversity index of each municipality and the region. The results indicate the municipalities located on the Sul-Rio-Grandense Plateau and at the interface with the Coastal Plain with the highest indexes, being influenced by the greatest diversity of geological units, relief types, altimetric variations, and hydrographic features. Despite the significant occurrence of large wetland areas in the Coastal Plain municipalities, their indices were the lowest. The study proved to be useful for the understanding of the geodiversity of the AUSul, pointing out areas for studies at larger scales and macro-zoning, in addition to the need for complementation with methods that incorporate subjective characteristics of geodiversity.
AS DIFICULDADES DO MODAL RODOVIÁRIO NA REGIÃO NORTE DO BRASIL
Authors: Antonio de Lima Ferreira Anderson , Augusto Santiago da Silva César , Aparecida Bela da Silva Neusa , Henrique Lixandrão Fernando Paulo
Published: March 2022

Há tempos, é de conhecimento as dificuldades do transporte rodoviário na região norte do Brasil, fato que foi evidenciado com a complexidade exigida no transporte em relação ao combate ao COVID-19. Elementos como a má qualidade das rodovias, distância dos principais polos industriais, preço do combustível e trechos fluviais impactam diretamente no valor do frete. Desta forma o frete fracionado aparece como uma alternativa para quem busca reduzir o custo no transporte para esta região. Teve-se então por objetivo, demonstrar os diversos custos que compõe o frete relacionado ao transporte rodoviário na região norte do Brasil e de verificar como o frete fracionado atua na redução dos custos da logística de transporte, mais especificamente identificou a composição de fretes para a região norte, verificou como o frete fracionado atua e estudou como ele pode contribuir com a redução do custo logístico. Utilizou-se como metodologia para a produção desta pesquisa, métodos exploratórios e descritivos baseado em revisões literárias e artigos. Acredita-se que este estudo tem caráter de relevância podendo auxiliar nas estratégias do planejamento de transporte bem como trazer oportunidades de economia nas contratações de frete.
LOGÍSTICA DOS CORREIOS
Authors: De Souza Neves Marcelo , Dos Santos Borsari Rodrigo , Da Silva Benyhe Thiago , Cristina Alves Tomaz Ligia , Henrique Lixandrão Fernando Paulo
Published: March 2022

Os Correios iniciaram-se no Brasil em 25 de janeiro 1663 com a criação do Correio-Mor, e em dezembro de 1931 os Correios fez uma fusão com os telégrafos. A partir daí começaram a se modernizar, vindo a criar e disponibilizar serviços de alta qualidade para os clientes. Porém o problema de insatisfação por parte dos clientes com o decorrer da situação pandêmica vem aumentando, e com decretos para fechamento de serviços presenciais, colocou o Correios em um dilema, isto é, como diminuir a insatisfação dos clientes em meio a situação. O principal objetivo da Logística é por meio da gestão do fluxo de informações e materiais dentro de uma organização, e tornar os processos mais eficientes. O Correios, por exemplo, mesmo durante a pandemia é a principal e única forma de recebimento de contas e cartas, portanto devido ao interesse neste tema ao decorrer deste artigo, apresentou as organizações, etapas e administração utilizada para manusear uma grande demanda de envio e recebimento de cartas e entregas, isto é, de onde muitas empresas e o governo. Foi utilizado a Metodologia exploratória com técnica de pesquisa qualitativa. Com este trabalho além de trazer informações sobre os correios, também apresentou possíveis soluções para o problema de insatisfação do cliente ou apresentar os planos de ação que já estão ativos.
PLANEJAMENTO ESTRATÉGICO LOGÍSTICO DA REDE DE FRIO PARA A DISTRIBUIÇÃO DE VACINAS DE COVID-19 NO BRASIL
Authors: Henrique Gonçalves da Silva Bruno , Ramos Silverio Carol , Monteiro dos Santos Fernanda , Torres Ricelli Hugo , Henrique Lixandrão Fernando Paulo
Published: March 2022

As vacinas são de fundamental importância na prevenção e combate as doenças imunopreveníveis e, consequentemente, na proteção da saúde da população, atuando diretamente na redução de taxas de hospitalizações e principalmente na taxa de óbitos no Brasil e no mundo. O planejamento estratégico logístico na distribuição de vacinas possui grandes desafios e é cada vez mais considerado um assunto de extrema relevância mundial. A estrutura de um sistema logístico eficiente passa por decisões como o planejamento das demandas, compra dos imunobiológicos, controle de estoques, armazenamento, conservação, manipulação, distribuição e transporte. O desenvolvimento deste trabalho teve como objetivo mostrar a importância do sistema logístico em todo o processo da cadeia de abastecimento das vacinas no Brasil e, principalmente, no atual cenário global.
PROJETO DE APLICAÇÃO DA METODOLOGIA DMAIC VISANDO A MAXIMIZAÇÃO DA PRODUÇÃO DE AÇÚCAR
Authors: Zerbinatti Gimenez Alex , Vieira Macri Rita de Cássia
Published: March 2022

Em busca de melhorias contínuas para atender um mercado cada vez mais exigente as empresas buscam desenvolver e aplicar ferramentas da engenharia da qualidade. Estas ferramentas quando aplicadas de forma eficiente, possibilitam solucionar problemas, bem como evitar desperdícios, aumentar a produção e reduzir custos. Uma unidade sucroenergética localizada no município de Nova Europa-SP, produtora de açúcar e etanol visando maximizar a sua produção de açúcar para o aumento do ganho financeiro, propôs a aplicação da metodologia SIX SIGMA através da ferramenta DMAIC para a safra 20/21. O objetivo geral deste estudo é aplicar e avaliar a utilização do método DMAIC, Define (definir), Measure (medir), Analyze (analisar), Improve (aperfeiçoar) e Control (controlar) assim como a sua eficácia no processo de produção. Para tanto foi designada uma equipe e realizadas reuniões mensais para a aplicação, monitoramento e controle das ações definidas no plano, seguindo um roteiro estruturado. Foi realizado um brainstorming com as principais causas que impactam diretamente na queda de produção. Através da ferramenta dos 5 porquês foi possível localizar a causa raiz do problema e de uma matriz de impacto x esforço foi possível priorizar os problemas a serem solucionados. Foi elaborado então um plano de ação de acordo com o método DMAIC que possibilitou o aumento da produção de açúcar superando o planejamento inicial.
METODOLOGIAS ÁGEIS
Authors: Souza Jean Carlos Albuquerque , Oliveira Marcus Rogério
Published: March 2022

Com o mercado em constante crescimento, ocorreu uma evolução no âmbito de desenvolvimento de software, uma vez que os métodos antigos já não eram mais adequados às necessidades do cliente, fazendo surgir as metodologias de desenvolvimento ágil. Porém, com o surgimento de novos métodos ágeis, surgiram, também, dúvidas sobre qual metodologia pode ser a mais adequada para ser utilizada em um projeto. Diante disso, o presente artigo se propõe a avaliar duas das principais metodologias ágeis da atualidade, o Scrum e o Extreme Programming, com o fim de encontrar qual melhor se encaixe com a necessidade do desenvolvedor. Por meio de pesquisa bibliográfica, consulta de artigos, livros e sites, ambas as metodologias serão abordadas, por meio de um breve resumo de cada, bem como, serão apresentados alguns de seus pontos positivos e negativos. O objetivo disso, é auxiliar o desenvolvedor de software em uma futura tomada de decisão.
Intestinal ultrasonography and fecal calprotectin for monitoring inflammation of ileal Crohn’s disease: two complementary tests
Authors: Paredes José María , Ripollés Tomás , Algarra Ángela , Diaz Rafael , Moreno Nadia , Latorre Patricia , Martínez María Jesús , Llopis Pilar , López Antonio , Moreno-Osset Eduardo
Published: March 2022

Background/Aims: Tight control of inflammation and adjustment of treatment if activity persists is the current strategy for the management of Crohn’s disease (CD). The usefulness of fecal calprotectin (FC) in isolated involvement of the small intestine in CD is controversial. To assess the usefulness of FC to determine the inflammatory activity detected by intestinal ultrasonography (IUS) in ileal CD. Methods: Patients with exclusively ileal involvement CD who underwent IUS and an FC were prospectively included. Simple ultrasound index was used to determine inflammatory activity. The usual statistical tests for comparison of diagnostic techniques were used. Results: One hundred and five patients were included, IUS showed inflammatory activity in 59% of patients and complications in 18.1%. FC showed a significant correlation with IUS in the weak range (Spearman coefficient r=0.502; P<0.001); the area under the receiver operating characteristic curve was 0.79 (95% confidence interval, 0.70–0.88; P<0.001). The FC value that best reflected the activity in IUS was 100 μg/g with sensitivity, specificity, and positive and negative predictive values of 73.0%, 71.4%, 79.3% and 63.8%, respectively. There were no differences in FC concentration between patients with or without transmural complications. The addition of serum C-reactive protein to FC did not improve the ability to assess IUS activity.Conclusions: FC has a significant correlation with IUS to monitor ileal CD activity. This correlation is weak and it does not allow assessing the presence of CD complications. Both tests should be used in conjunction for tight control of ileal CD. More studies on noninvasive tests in this location are needed.
RELATIONSHIP BETWEEN ORGANIZATIONAL JUSTICE AND ORGANIZATIONAL CITIZENSHIP BEHAVIOUR: A CASE STUDY OF WIPRO
Authors: Vannala Lavanya
Published: March 2022

Every organization’s existence is aimed at designing their operations in the pursuit of making monetary benefits through vision and mission. Letting employees understand the vision and goal of the organization helps the employee to understand the ideas and milestones of the organizations. Work from home scenario across industries has brought in a new challenge to communication connectivity with the workforce. Organizations have to communicate not only their goals to the employees but also should gain the trust of their employees. Organizational justice is one of such factors which employees are keenly looking as the word of promise from employers. It articulates, how employer should conduct themselves with employees, so that they sense organization treated them properly. This study is aimed at identifying the employee’s perception about organizational justice and explored a relationship if any existing amid organizational fairness and organizational citizenship behavior (OCB). Researcher has adopted a descriptive analysis and this has study has used a well structure questionnaire consisting of three parts measuring: 1. Organizational Justice (OJ), 2. Organizational Citizenship Behavior (OCB) and 3. Demographic details. This study has used convenience-sampling technique for selection of samples from the population i.e., employees from Wipro in Bengaluru city. A detailed analysis using SPSS tool revealed a direct and positive significant association between OJ and OCB. Among the dimensions of OJ: Spatial justice, Interactional justice and Distributive justice had a positive substantial influence on OCB. Other two factors of OJ namely: Procedural, Temporal dimensions of OJ had no noteworthy impact on OCB.
WORKPLACE SPIRITUALITY AND WORK-LIFE BALANCE: A CRITICAL STUDY
Authors: Budagavi Dr Anupama
Published: March 2022

To lead quality life, every individual irrespective of his profession should maintain balance between work life and personal life. These two domains in every one’s life are very important as both are interrelated with mutual influence. Coping up with the situations that are encountered in the work life in the covid - 19 scenarios has become more challenging. Every individual has compelled to adopt new normal conditions in the workplace. In the course of delivering the responsibilities in the changed patterns of works in the present covid conditions, there is a possibility of arising role conflict among intra personal behaviors of an individual. In these circumstances, it is very important to attain harmony in life with physical, emotional, and spiritual health. There is a need of spiritual component in both personal & professional life to avoid role conflict. Spirituality at Workplace describes more on employees complete selves at work by finding meaningfulness in their work by connecting themselves with Organization and community rather work just for their survival. These opinions had sown a thought to conduct study on concept of workplace spirituality and Work-life Balance. The present study has been carried out to understand the importance of Work-life Balance in every individual life and how Workplace spirituality can help Individuals to maintain balance in his both work and personal life.
PENGARUH LEVERAGE DAN CASH HOLDING TERHADAP PERTUMBUHAN LABA DENGAN TAX PLANNING SEBAGAI VARIABEL MODERATING
Authors: Ulfahtun Ulfahtun , Wijayanti Ajeng
Published: March 2022

Alasan penelitian ini adalah untuk melihat dampak pengaruh leverage dan cash holding terhadap pertumbuhan laba dengan tax planning sebagai variable moderating. Penelitian ini menggunakan informasi opsional yang menggunakan berbagai informasi dokumentasi dan sebagai laporan keuangan tahunan tentang organisasi properti dan real estate di Bursa Efek Indonesia. Prosedur pengujian menggunakan teknik pemeriksaan purposive. Konsekuensi dari pengaruh leverage ini tidak secara signifikan mempengaruhi pertumbuhan laba, cash holding secara signifikan mempengaruhi pertumbuhan laba, tax planning secara signifikan mempengaruhi pertumbuhan laba. Tax planning tidak dapat mengarahkan hubungan antara leverage dengan pertumbuhan laba. Tax planning tidak dapat mengarahkan hubungan antara cash holding dan pertumbuhan laba.
THE STRATEGY OF AN ISLAMIC BOARDING SCHOOL OF PANGERAN DIPONEGORO IN YOGYAKARTA TO PRESERVE ITS EXISTENCE THROUGH CHARACTER EDUCATION BUILDING TOWARD STUDENTS
Authors: Muna Choirul , Sodik Fajar
Published: March 2022

Nowadays, the issue of character education is spreading, given thevarious events that have occurred, so that the determination of the youthof this country has fallen so sharply. This study aims to analyze thestrategy of the Prince Diponegoro Islamic Boarding School inYogyakarta in maintaining its existence through the cultivation ofcharacter education for students. This type of research is a type ofqualitative research. The results of this study are the Prince DiponegoroIslamic Boarding School, Yogyakarta, managed to maintain its existencein the midst of the presence of modern education. The Islamic boardingschool through its educational programs with existing methods is able tocontinue to exist. The strategies implemented such as the exemplarymethod, the habituation method, the mau`izhah method or advice as wellas the motivation and intimidation method were considered optimal andable to change the character of the santri for the better. so that manyguardians of students believe and leave their children in the boardingschool.