bluuebunny/crossref_metadata_2025 huggingface dataset:
Toward a Detailed Evaluation of Wireless Industrial Data Distribution Approaches
Authors: Raptis Theofanis P. , Formica Andrea , Pagani Elena , Passarella Andrea , Conti Marco
Published: March 2022

Data distribution is a cornerstone of efficient automation for intelligent machines in Industry 4.0. Although in the recent literature there have been several comparisons of relevant methods, we identify that most of those comparisons are either theoretical or based on abstract simulation tools, unable to uncover the specific, detailed impacts of the methods to the underlying networking infrastructure. In this respect, as a first contribution of this paper, we develop more detailed and fine-tuned solutions for robust data distribution in smart factories on stationary and mobile scenarios of wireless industrial networking. Using the technological enablers of WirelessHART, RPL and the methodological enabler of proxy selection as building blocks, we compose the protocol stacks of four different methods (both centralized and decentralized) for data distribution in wireless industrial networks over the IEEE 802.15.4 physical layer. We implement the presented methods in the highly detailed OMNeT++ simulation environment and we evaluate their performance via an extensive simulation analysis. Interestingly enough, we demonstrate that the careful selection of a limited set of proxies for data caching in the network can lead to an increased data delivery success rate and low data access latency. Next, we describe two test cases demonstrated in an industrial smart factory environment. First, we show the collaboration between robotic elements and wireless data services. Second, we show the integration with an industrial fog node which controls the shop-floor devices. We report selected results in much larger scales, obtained via simulations.
The Potential of LEO Satellite-Based Opportunistic Navigation for High Dynamic Applications
Authors: Jardak Nabil , Jault Quentin
Published: March 2022

Resilient navigation in Global Navigation Satellite System (GNSS)-degraded and -denied environments is becoming more and more required for many applications. It can typically be based on multi-sensor data fusion that relies on alternative technologies to GNSS. In this work, we studied the potential of a low earth orbit (LEO) satellite communication system for a high-dynamic application, when it is integrated with an inertial measurement unit (IMU) and magnetometers. We derived the influence of the main error sources that affect the LEO space vehicle (SV) Doppler-based navigation on both positioning and attitude estimations. This allowed us to determine the best, intermediate and worst cases of navigation performances. We show that while the positioning error is large due to large orbit errors or high SV clock drifts, it becomes competitive with that of an inertial navigation system (INS) based on a better quality IMU if precise satellite orbits are available. On the other hand, the attitude estimation tolerates large orbit errors and high SV clock drifts. The obtained results suggest that LEO SV signals, used as signals of opportunity for navigation, are an attractive alternative in GNSS-denied environments for high dynamic vehicles.
Towards the Development of a Sensor Educational Toolkit to Support Community and Citizen Science
Authors: Collier-Oxandale Ashley , Papapostolou Vasileios , Feenstra Brandon , Der Boghossian Berj , Polidori Andrea
Published: March 2022

As air quality sensors increasingly become commercially available, a deeper consideration of their usability and usefulness is needed to ensure effective application by the public. Much of the research related to sensors has focused on data quality and potential applications. While this information is important, a greater understanding of users’ experience with sensors would provide complementary information. Under a U.S. EPA-funded Science to Achieve Results grant awarded to the South Coast Air Quality Management District in California, titled “Engage, Educate, and Empower California Communities on the Use and Applications of Low-Cost Air Monitoring Sensors”, approximately 400 air quality sensors were deployed with 14 California communities. These communities received sensors and training, and they participated in workshops. Widely varying levels of sensor installation and engagement were observed across the 14 communities. However, despite differences between communities (in terms of participation, demographics, and socioeconomic factors), many participants offered similar feedback on the barriers to sensor use and strategies leading to successful sensor use. Here, we assess sensor use and participant feedback, as well as discuss the development of an educational toolkit titled “Community in Action: A Comprehensive Toolkit on Air Quality Sensors”. This toolkit can be leveraged by future community and citizen science projects to develop networks designed to collect air quality information that can help reduce exposure to and the emissions of pollutants, leading to improved environmental and public health.
Body-Worn IMU-Based Human Hip and Knee Kinematics Estimation during Treadmill Walking
Authors: McGrath Timothy , Stirling Leia
Published: March 2022

Traditionally, inertial measurement unit (IMU)-based human joint angle estimation techniques are evaluated for general human motion where human joints explore all of their degrees of freedom. Pure human walking, in contrast, limits the motion of human joints and may lead to unobservability conditions that confound magnetometer-free IMU-based methods. This work explores the unobservability conditions emergent during human walking and expands upon a previous IMU-based method for the human knee to also estimate human hip angles relative to an assumed vertical datum. The proposed method is evaluated (N=12) in a human subject study and compared against an optical motion capture system. Accuracy of human knee flexion/extension angle (7.87∘ absolute root mean square error (RMSE)), hip flexion/extension angle (3.70∘ relative RMSE), and hip abduction/adduction angle (4.56∘ relative RMSE) during walking are similar to current state-of-the-art self-calibrating IMU methods that use magnetometers. Larger errors of hip internal/external rotation angle (6.27∘ relative RMSE) are driven by IMU heading drift characteristic of magnetometer-free approaches and non-hinge kinematics of the hip during gait, amongst other error sources. One of these sources of error, soft tissue perturbations during gait, is explored further in the context of knee angle estimation and it was observed that the IMU method may overestimate the angle during stance and underestimate the angle during swing. The presented method and results provide a novel combination of observability considerations, heuristic correction methods, and validation techniques to magnetic-blind, kinematic-only IMU-based skeletal pose estimation during human tasks with degenerate kinematics (e.g., straight line walking).
Reliability and Accuracy of a Time-Efficient Method for the Assessment of Achilles Tendon Mechanical Properties by Ultrasonography
Authors: Hunter Steve , Werth Julian , James Darren , Lambrianides Yiannis , Smith Kenton , Karamanidis Kiros , Epro Gaspar
Published: March 2022

The assessment of the force–length relationship under mechanical loading is widely used to evaluate the mechanical properties of tendons and to gain information about their adaptation, function, and injury. This study aimed to provide a time-efficient ultrasound method for assessing Achilles tendon mechanical properties. On two days, eleven healthy young non-active adults performed eight maximal voluntary isometric ankle plantarflexion contractions on a dynamometer with simultaneous ultrasonographic recording. Maximal tendon elongation was assessed by digitizing ultrasound images at rest and at maximal tendon force. Achilles tendon stiffness index was calculated from the ratio of tendon force-to-strain. No within- and between-day differences were detected between the proposed method and manual frame by frame tracking in Achilles tendon maximal force, maximal elongation, maximal strain, and stiffness index. The overall coefficient of variation between trials ranged from 3.4% to 10.3% and average difference in tendon tracking between methods was less than 0.6% strain. Furthermore, an additional assessment demonstrated significant differences between elite athletes, healthy young, and older adults in Achilles tendon force and stiffness index. Hence, the analysis has the potential to reliably and accurately monitor changes in Achilles tendon mechanical properties due to aging and altered mechanical loading in a time-efficient manner.
The Validity of the Energy Expenditure Criteria Based on Open Source Code through two Inertial Sensors
Authors: Martín-Martín Jaime , Wang Li , De-Torres Irene , Escriche-Escuder Adrian , González-Sánchez Manuel , Muro-Culebras Antonio , Roldán-Jiménez Cristina , Ruiz-Muñoz María , Mayoral-Cleries Fermín , Biró Attila , Tang Wen , Nikolova Borjanka , Salvatore Alfredo , Cuesta-Vargas Antonio I.
Published: March 2022

Through this study, we developed and validated a system for energy expenditure calculation, which only requires low-cost inertial sensors and open source R software. Five healthy subjects ran at ten different speeds while their kinematic variables were recorded on the thigh and wrist. Two ActiGraph wireless inertial sensors and a low-cost Bluetooth-based inertial sensor (Lis2DH12), assembled by SensorID, were used. Ten energy expenditure equations were automatically calculated in a developed open source R software (our own creation). A correlation analysis was used to compare the results of the energy expenditure equations. A high interclass correlation coefficient of estimated energy expenditure on the thigh and wrist was observed with an Actigraph and Sensor ID accelerometer; the corrected Freedson equation showed the highest values, and the Santos-Lozano vector magnitude equation and Sasaki equation demonstrated the lowest one. Energy expenditure was compared between the wrist and thigh and showed low correlation values. Despite the positive results obtained, it was necessary to design specific equations for the estimation of energy expenditure measured with inertial sensors on the thigh. The use of the same formula equation in two different placements did not report a positive interclass correlation coefficient.
Evaluation of Two Portable Hyperspectral-Sensor-Based Instruments to Predict Key Soil Properties in Canadian Soils
Authors: Dhawale Nandkishor M. , Adamchuk Viacheslav I. , Prasher Shiv O. , Rossel Raphael A. Viscarra , Ismail Ashraf A.
Published: March 2022

In contrast with classic bench-top hyperspectral (multispectral)-sensor-based instruments (spectrophotometers), the portable ones are rugged, relatively inexpensive, and simple to use; therefore, they are suitable for field implementation to more closely examine various soil properties on the spot. The purpose of this study was to evaluate two portable spectrophotometers to predict key soil properties such as texture and soil organic carbon (SOC) in 282 soil samples collected from proportional fields in four Canadian provinces. Of the two instruments, one was the first of its kind (prototype) and was a mid-infrared (mid-IR) spectrophotometer operating between ~5500 and ~11,000 nm. The other instrument was a readily available dual-type spectrophotometer having a spectral range in both visible (vis) and near-infrared (NIR) regions with wavelengths ranging between ~400 and ~2220 nm. A large number of soil samples (n = 282) were used to represent a wide variety of soil textures, from clay loam to sandy soils, with a considerable range of SOC. These samples were subjected to routine laboratory soil analysis before both spectrophotometers were used to collect diffuse reflectance spectroscopy (DRS) measurements. After data collection, the mid-IR and vis-NIR spectra were randomly divided into calibration (70%) and validation (30%) sets. Partial least squares regression (PLSR) was used with leave one out cross-validation techniques to derive the spectral calibrations to predict SOC, sand, and clay content. The performances of the calibration models were reevaluated on the validation set. It was found that sand content can be predicted more accurately using the portable mid-IR spectrophotometer and clay content is better predicted using the readily available dual-type vis-NIR spectrophotometer. The coefficients of determination (R2) and root mean squared error (RMSE) were determined to be most favorable for clay (0.82 and 78 g kg−1) and sand (0.82 and 103 g kg−1), respectively. The ability to predict SOC content precisely was not particularly good for the dataset of soils used in this study with an R2 and RMSE of 0.54 and 4.1 g kg−1. The tested method demonstrated that both portable mid-IR and vis-NIR spectrophotometers were comparable in predicting soil texture on a large soil dataset collected from agricultural fields in four Canadian provinces.
A Wireless Indoor Environmental Quality Logger Processing the Indoor Global Comfort Index
Authors: Riffelli Stefano
Published: March 2022

Indoor environmental quality (IEQ) has a high-level of impact on one’s health and productivity. It is widely accepted that IEQ is composed of four categories: thermal comfort, indoor air quality (IAQ), visual comfort, and acoustic comfort. The main physical parameters that primarily represent these comfort categories can be monitored using sensors. To this purpose, the article proposes a wireless indoor environmental quality logger. In the literature, global comfort indices are often assessed objectively (using sensors) or subjectively (through surveys). This study adopts an integrated approach that calculates a predicted indoor global comfort index (P-IGCI) using sensor data and estimates a real perceived indoor global comfort index (RP-IGCI) based on questionnaires. Among the 19 different tested algorithms, the stepwise multiple linear regression model minimized the distance between the two comfort indices. In the case study involving a university classroom setting—thermal comfort and indoor air quality were identified as the most relevant IEQ elements from a subjective point of view. The model also confirms this findings from an objective perspective since temperature and CO2 merge as the measured physical parameters with the most impacts on overall comfort.
Chip Design of an All-Digital Frequency Synthesizer with Reference Spur Reduction Technique for Radar Sensing
Authors: Lai Wen-Cheng
Published: March 2022

5.2-GHz all-digital frequency synthesizer implemented proposed reference spur reducing with the tsmc 0.18 µm CMOS technology is proposed. It can be used for radar equipped applications and radar-communication control. It provides one ration frequency ranged from 4.68 GHz to 5.36 GHz for the local oscillator in RF frontend circuits. Adopting a phase detector that only delivers phase error raw data when phase error is investigated and reduces the updating frequency for DCO handling code achieves a decreased reference spur. Since an all-digital phase-locked loop is designed, the prototype not only optimized the chip dimensions, but also precludes the influence of process shrinks and has the advantage of noise immunity. The elements of novelties of this article are low phase noise and low power consumption. With 1.8 V supply voltage and locking at 5.22 GHz, measured results find that the output signal power is −8.03 dBm, the phase noise is −110.74 dBc/Hz at 1 MHz offset frequency and the power dissipation is 16.2 mW, while the die dimensions are 0.901 × 0.935 mm2.
Comparative Physiology of Indica and Japonica Rice under Salinity and Drought Stress: An Intrinsic Study on Osmotic Adjustment, Oxidative Stress, Antioxidant Defense and Methylglyoxal Detoxification
Authors: Hossen Md. Shahadat , Karim Md. Fazlul , Fujita Masayuki , Bhuyan M. H. M. Borhannuddin , Nahar Kamrun , Masud Abdul Awal Chowdhury , Mahmud Jubayer Al , Hasanuzzaman Mirza
Published: March 2022

Salinity and drought stress are significant environmental threats, alone or in combination. The current study was conducted to investigate the morpho-physiology, osmotic adjustment, oxidative stress, antioxidant defense and methylglyoxal detoxification of three rice genotypes from the indica (cv. BRRI dhan29 and BRRI dhan48) and japonica (cv. Koshihikari) groups. Eighteen-day-old seedlings of these genotypes were exposed to either in alone salinity (150 mM NaCl) and drought (15% PEG 6000) or in the combination of salinity and drought (150 mM NaCl + 15% PEG 6000) stress in vitro for 72 h. Compared with the control, the water status, biomass and photosynthetic pigments were decreased, where a significant increase was seen in the mortality rate, hydrogen peroxide content, electrolyte leakage, lipoxygenase activity, level of malondialdehyde and methylglyoxal, indicating increased lipid peroxidation in rice genotypes in stress conditions. The non-enzymatic and enzymatic components of the ascorbate-glutathione (AsA-GSH) pool in rice genotypes were disrupted under all stress treatments, resulting imbalance in the redox equilibrium. In contrast, compared to other rice genotypes, BRRI dhan48 revealed a lower Na+/K+ ratio, greater proline (Pro) levels, higher activity of AsA, dehydroascorbate (DHA) and GSH, lower glutathione disulfide (GSSG) and a higher ratio of AsA/DHA and GSH/GSSG, whereas enzymatic components increased monodehydroascorbate reductase, dehydroascorbate reductase, glutathione peroxidase and glyoxalase enzymes. The results showed that a stronger tolerate ability for BRRI dhan48 against stress has been connected to a lower Na+/K+ ratio, an increase in Pro content and an improved performance of the glyoxalase system and antioxidant protection for scavenging of reactive oxygen species. These data can give insight into probable responses to single or combination salinity and drought stress in rice genotypes.
Changes in Mangrove Carbon Stocks and Exposure to Sea Level Rise (SLR) under Future Climate Scenarios
Authors: Singh Minerva , Schwendenmann Luitgard , Wang Gang , Adame Maria Fernanda , Mandlate Luís Junior Comissario
Published: March 2022

Mangrove ecosystems are threatened by a variety of anthropogenic changes, including climate change. The main aim of this research is to quantify the spatial variation in the different mangrove carbon stocks, aboveground carbon (AGC), belowground carbon (BGC), and soil carbon (SOC), under future climate scenarios. Additionally, we sought to identify the magnitude of sea-level rise (SLR) exposure with the view of identifying the mangrove regions most likely to face elevated inundation. Different representative concentration pathways (RCPs) ranging from the most optimistic (RCP 2.6) to medium emissions (RCP 4.5) and the most pessimistic (RCP 8.5) were considered for 2070. We used the Marine Ecoregions of the World (MEOW), a biogeographical classification of coastal ecosystems, to quantify the variation in future carbon stocks at a regional scale and identify areas of potential carbon stock losses and gains. Here, we showed that the mangroves of Central and Western Indo-Pacific islands (Andamans, Papua New Guinea, and Vanuatu), the west African coast, and northeastern South America will be the worst hit and are projected to affect all three carbon stocks under all future scenarios. For instance, the Andaman ecoregion is projected to have an 11–25% decline in SOC accumulation, while the Western Indo-Pacific realm is projected to undergo the sharpest declines, ranging from 10% to 12% under all three scenarios. Examples of these areas are those in Amazonia and the eastern part of South Asia (such as in the Northern Bay of Bengal ecoregion). Based on these findings, conservation management of mangroves can be conducted.
Ecological Infrastructures May Enhance Lepidopterans Predation in Irrigated Mediterranean Farmland, Depending on Their Typology and the Predator Guild
Authors: Franco José Carlos , Branco Manuela , Conde Sofia , Garcia André , Fernandes Maria Rosário , Lima Santos José , Messina Tainan , Duarte Gonçalo , Fonseca André , Zina Vera , Ferreira Maria Teresa
Published: March 2022

Ecological infrastructures (EIs) are considered relevant components in agricultural landscapes to support biodiversity and ecosystem services. We used the predatory attacks on lepidopteran dummies as a proxy to assess predation rates in the agricultural matrix and different EIs types according to their location and vegetation structure. We aimed at comparing the effect of different types of EI on the predation intensity in two intensively irrigated agricultural areas located in the Sorraia and Tagus river valleys in central Portugal. We hypothesized that: (1) the predation rate would be higher near EIs compared with the agricultural matrix, (2) the positive effect of EIs on predation rate would differ with their typologies, and (3) the EIs’ proximity and proportion in the surrounding landscape would have a positive effect on the predation rate in agricultural fields. The EI typologies influenced differently the predator groups and the overall predation rate. Major differences were observed for bird predation, being higher in woody EIs. A positive correlation between predation rate and EIs area of the surrounding landscape, as well as a negative correlation with the distance to the nearest riparian and woody EIs, was observed for birds. The observed dissimilarities in the predators’ response may be related to habitat differences and its functional connectivity. The overall monthly low predation rates are possibly related to the intensive agricultural system and the small area occupied by EIs.
Improving Food Security through Entomophagy: Can Behavioural Interventions Influence Consumer Preference for Edible Insects?
Authors: Bao Helen X. H. , Song Yuna
Published: March 2022

Compared with meats, edible insects taste just as good, are equally or even more nutritious, and have a significantly smaller environmental footprint. However, the adoption of entomophagy is still limited, particularly in Western countries. Considering the environmental benefits of entomophagy and its potential contribution to food security, it is important to understand factors that can influence the willingness to try edible insects as meat substitutes, and policy tools that can encourage the adoption of entomophagy. This research conducts online experiments to test the effect of a wide range of personal traits and a behavioural intervention combining social norm nudges and information boosts. Our findings suggest that behavioural interventions are cost-effective tools to promote the adoption of entomophagy; consumers can be nudged and educated on the basis of the environmental consequences of their individual food choices and are receptive to adopting entomophagy as a sustainable alternative to animal protein.
The Impact of Green Investment and Green Marketing on Business Performance: The Mediation Role of Corporate Social Responsibility in Ethiopia’s Chinese Textile Companies
Authors: Zhang Youtang , Berhe Hagos Mesfin
Published: March 2022

In the current era of rapidly increasing industrialization and rising environmental concerns, green investment and green marketing have become hot strategic issues to improve the business performance of companies. This study aims to examine the impact of green marketing and green investment on business performance using the mediating role of corporate social responsibility (CSR) in Ethiopia’s Chinese textile companies. The study used a mixed research method approach that included primary and secondary data sources, with the required data gathered from 237 respondents in Ethiopia’s Chinese textile companies. The employed research data were analyzed using a structural equation model (SEM) and multivariate regression analysis to identify the causal relationship between green investment, green marketing, and business performance. The main result reveals that green marketing and green investment positively and substantially influence a firm’s business performance. Furthermore, results show that CSR has positively and significantly mediated the impact of green investment and green marketing on business performance. Even though Chinese textile companies in Ethiopia have started to incorporate green investment, green marketing, and CSR into their operations, the government and Chinese businesses should work together to close the gaps that prevent long-term growth. This study provides a useful model to help companies, managers, practitioners, and policymakers understand and manage green marketing, investment, and CSR to improve business performance.
The Effect of Temperature and Water Stresses on Seed Germination and Seedling Growth of Wheat (Triticum aestivum L.)
Authors: Khaeim Hussein , Kende Zoltán , Balla István , Gyuricza Csaba , Eser Adnan , Tarnawa Ákos
Published: March 2022

Temperature and moisture are essential factors in germination and seedling growth. The purpose of this research was to assess the germination and growth of wheat (Triticum aestivum L.) seeds under various abiotic stressors. It was conducted in the Agronomy Institute of the Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary. Six distinct temperature levels were used: 5, 10, 15, 20, 25, and 30 °C. Stresses of drought and waterlogging were quantified using 25 water levels based on single-milliliter intervals and as a percentage based on thousand kernel weight (TKW). Seedling density was also tested. Temperature significantly influenced germination duration and seedling development. 20 °C was ideal with optimal range of 15 °C to less than 25 °C. Germination occurred at water amount of 75% of the TKW, and its ideal range was lower and narrower than the range for seedling development. Seed size provided an objective basis for defining germination water requirements. The current study established an optimal water supply range for wheat seedling growth of 525–825 percent of the TKW. Fifteen seeds within a 9 cm Petri dish may be preferred to denser populations.
Entrepreneurship, Local Fashion, Tourism Development, and the Hippie Movement: The Case of Adlib Fashion (Ibiza, Spain)
Authors: Ramón-Cardona José , Sánchez-Fernández María Dolores , Durán-Sánchez Amador , Álvarez-García José
Published: March 2022

On the island of Ibiza, the sixties and seventies saw a touristic boom and the rise of hippies. The hippie presence ended shortly after, but left various elements considered to be direct legacies. Among these elements, it is worth highlighting the creation of a local fashion inspired by traditional clothing and hippies. This fashion was called Adlib and has its appearance date in 1971 with the first Ibiza Fashion Week. In this paper, a case study is carried out, supported by interviews, which delves into the historical evolution and the current situation of Adlib Ibiza fashion and the businesses under this umbrella brand. Adlib fashion has always had more relevance as a tool for promoting and differentiating tourism than as an independent economic sector. Even so, it is a small sector made up of small or micro businesses created by entrepreneurs from the island who seek to market their designs. Unfortunately, many businesses fail shortly after their opening and do not survive the retirement of their founder, due to the strong link of these businesses to the designs and creations of their owner. The evolution of the brand and its businesses undermines any optimism in future trends, and possibly suggests a slow decline.
Diffusion of Disaster-Preparedness Information by Hearing from Early Adopters to Late Adopters in Coastal Bangladesh
Authors: Samaddar Subhajyoti , Roy Sudip , Akter Fatima , Tatano Hirokazu
Published: March 2022

The successful social implementation of a rainwater-harvesting tank can save millions of people in coastal Bangladesh from drinking saline water and health risks. However, previous studies have shown that several potentially effective, innovative disaster-preventive technologies failed to disseminate even after proactive promotional campaigns. People at risk worry about adopting innovative preventive measures because of the uncertainties attached to the new technology, such as its merits, cost, maintenance, durability, social acceptance, etc. Instead of mass media, people rely on social networks to obtain trusted, verified, and personal information. Hearing plays an important role, through which information diffuses from pioneer adopters to late adopters or potential adopters across settlements, starting from the village to district to region. Unlike conventional studies, limited to understanding the regional dimension of diffusion, this study investigated how the information diffuses from pioneer adopters to potential adopters at both the macro-level (e.g., districts, subdistricts, and towns) and micro-level (e.g., villages and neighborhoods). This study was based on field surveys through interviewing 196 innovative rainwater-tank adopters from 30 villages and communities in two subdistricts in coastal Bangladesh. We found that the macro-level pioneer adopters played a critical role in diffusing awareness knowledge, through which people in new villages, neighborhoods, and sub-districts, where mass media and change agents failed to reach, became aware of the existence of the innovative measure. However, macro-adapters alone failed to disseminate the innovation further, as the local communities intend to pay to heed the suggestions and experiences of the local (micro) pioneer adopters to understand the principle and how-to knowledge of the innovation. Information is diffused in the villages and neighborhoods through local pioneer adopters through direct, intimate personal contacts.
Assessment of Forest Wood and Carbon Stock at the Stand Level: First Results of a Modeling Approach for an Italian Case Study Area of the Central Alps
Authors: Nonini Luca , Fiala Marco
Published: March 2022

Models for carbon (C) stock assessment are widely applied in forest science, and mainly differ according to the scale of application, the required data, and the objectives for their implementation. This work presents the methodology implemented into the second version of an empirical model, WOody biomass and Carbon ASsessment (WOCAS v2), that uses the data of forest management plans (FMP) to calculate the mass of wood (t∙year−1 of dry matter, DM) and C (t∙year−1 C) at the stand level and from the year in which the FMPs came into force until a predefined reference year, for an Italian Case Study Area of Central Alps. The mass of wood and C are computed for (i) aboveground wood biomass (AWB), (ii) belowground wood biomass (BWB), and (iii) dead organic matter (DOM; i.e., dead wood and litter) according to the 2006 IPCC Guidelines. WOCAS v2 was tested for the first time for 2019 public forest stands (3.67 × 104 ha) of Valle Camonica for the period 1984–2018. Results showed that, in 2018 and at the landscape level, the total living wood biomass (TLB; AWB + BWB) reached 5.35∙106 t DM. TLB yield (t·ha−1·year−1 DM) ranged from 44.72 ± 44.42 t·ha−1·year−1 DM (1984) to 145.49 ± 70.76 t·ha−1·year−1 DM (2018). In the same year, DOM amounted to 6.12∙105 t DM, ranging from 8.28 ± 7.79 t·ha−1·year−1 DM (1989) to 17.11 ± 12.03 t·ha−1·year−1 DM (2015). The total weighted C yield, computed as the sum of C yield in AWB, BWB, and DOM of each stand, ranged from 26.63 ± 26.80 t∙ha−1∙year−1 C (1984) to 80.28 ± 41.32 t∙ha−1∙year−1 C (2018). The results demonstrated that FMPs data can be useful in estimating wood and C mass at the stand level and their variation over space and time for AWB as well as for BWB and DOM, which are not considered in the FMPs. This can represent a starting point for defining sustainable forest management policies and practices to improve forest vitality and conservation in compatibility with ecosystem services provision. Moreover, as the model is based on a standardized methodology it can be applied in any other forest area where the same input data are made available; this may constitute the basis for further applications on a broader scale.
Can Green Credit Policy Promote Firms’ Green Innovation? Evidence from China
Authors: Gao Da , Mo Xinlin , Duan Kun , Li Yi
Published: March 2022

To achieve the twin goals of “stable growth” and “environmental protection”, it is necessary to promote green innovation in firms and green transformation of the economy. This paper regards China’s Green Credit Guidelines policy in 2012 as a quasi-natural experiment to explore the impact of the policy on the green innovation of heavy-polluting firms. This analysis uses Chinese A-share listed industrial enterprises from 2008–2019 as the research sample and difference-in-difference (DID) as the empirical method. The results show that implementing the green credit policy has significantly contributed to firms’ green technology innovation enhancement. Moreover, the mechanism suggests that the green credit policy can promote firms’ green innovation through channels, such as inhibiting the compression of heavy-polluting firms’ financing space, increasing their debt financing costs, and promoting firm transformation and upgrading. Further study finds that the green credit policy promotes green innovation significantly for state-owned and large firms but not for non-state-owned and small-scale firms. Based on our empirical results, we can conclude that the green credit policy is an efficient way to realize the goal of “environmental excellence” and guide firms to effectively carry out green innovation.
Screening on the Presence of Plant Growth Regulators in High Biomass Forming Seaweeds from the Ionian Sea (Mediterranean Sea)
Authors: Spagnuolo Damiano , Russo Valentino , Manghisi Antonio , Di Martino Antonio , Morabito Marina , Genovese Giuseppa , Trifilò Patrizia
Published: March 2022

The use of seaweed as plant biostimulants is a solution for sustainable agriculture. The present study aims to quantify and compare the presence of plant growth regulators (PGRs) in four genetically labeled macroalgae growing in the Ionian Sea. Species were selected because they produce abundant biomass, disturbing ecological equilibrium and anthropic activities. We measured the content of gibberellic acid (GA3), kinetin (KN), indoleacetic acid (IAA), abscisic acid (ABA) and indole butyric acid (IBA). The method applied was modified from the literature to obtain simultaneously different PGRs from seaweed biomass in a shorter period of time. Among results, it is notable that Hypnea corona Huisman et Petrocelli (Rhodophyta) showed higher GA3 concentration, while in Spyridia filamentosa (Wulfen) Harvey (Rhodophyta), higher KN, IBA, IAA and ABA contents were recorded. The latter species displayed an interesting profile of PGRs, with an IAA value comparable with that reported in Ascophyllum nodosum (Linnaeus) Le Jolis (Ochrophyta), which is currently used as a source of plant biostimulants in agriculture. Macroalgae thrive abundantly in nutrient-rich environments, such as anthropized coastal areas affecting human economic activities. Consequently, environmental agencies are forced to dredge algal thalli and discard them as waste. Any use of unwanted biomass as an economic product is highly desirable in the perspective of ecosustainable development.
Exploring the Mediating Role of Knowledge Sharing between Informal Business Networks and Organizational Performance: An Insight into SMEs Internationalization in CEE
Authors: Vătămănescu Elena-Mădălina , Mitan Andreea , Cotîrleț Paul Claudiu , Andrei Andreia Gabriela
Published: March 2022

The current study aims to explore the mediating role of knowledge-sharing between international informal business networks and organizational performance. Emphasis is laid on a context-driven perspective, namely the internationalization of small- and medium-sized enterprises (SMEs) in Central and East Europe (CEE). To that end, an online questionnaire-based survey was conducted with 111 managers of CEE SMEs operating in different trade branches. The findings have shown that 46.6% of the variance in organizational performance is explained by the proposed model while 38.9% of the variance in the knowledge sharing process is explained by the affiliation of CEE SMEs to international informal business networks. The results have both theoretical and practical implications, supporting the imperative to further study the phenomena apposite to CEE region as a compelling research laboratory for multidimensional organizational idiosyncrasies.
The Independent Impacts of PM2.5 Dropping on the Physical and Chemical Properties of Atmosphere over North China Plain in Summer during 2015–2019
Authors: Ou Shengju , Wei Wei , Cai Bin , Chen Saisai , Guan Panbo , Cheng Shuiyuan
Published: March 2022

Great changes occurred in the physical and chemical properties of the atmosphere in the North China Plain (NCP) in summer caused by PM2.5 dropping from 58 μg/m3 in 2015 to 36.0 μg/m3 in 2019. In this study, we first applied the WRF-Chem model to quantify the impact of PM2.5 reduction on shortwave radiation reaching the ground (SWDOWN), planetary boundary layer height (PBLH), and the surface concentration of air pollutants (represented by CO). Simulation results obtained an increase of 15.0% in daytime SWDOWN and 9.9% in daytime PBLH, and a decrease of −5.0% in daytime CO concentration. These changes were induced by the varied PM2.5 levels. Moreover, the variation in SWDOWN further led to a rise in the NO2 photolysis rate (JNO2) over this region, by 1.82 × 10−4~1.91 × 10−4 s−1 per year. Afterwards, we employed MCM chemical box model to explore how the JNO2 increase and the precursor decrease (CO, VOCs, and NOx) influenced O3 and HOx radicals. The results revealed that the photolysis rate (J) increase would individually cause a change on daytime surface O3, OH, and HO2 radicals by +9.0%, +18.9%, and +23.7%; the corresponding change induced by the precursor decrease was −2.5%, +1.9%, and −2.3%. At the same time, the integrated impacts of the change in J and precursors cause an increase of +6.3%, +21.1%, and +20.9% for daytime surface O3, OH, and HO2. Generally, the atmospheric oxidation capacity significantly enhanced during summer in NCP due to the PM2.5 dropping in recent years. This research can help understand atmosphere changes caused by PM2.5 reduction comprehensively.
Millets and Cereal Meals from the Early Iron Age Underwater Settlement of “Gran Carro” (Bolsena Lake, Central Italy)
Authors: Fundurulic Ana , Valenti Ilenia , Celant Alessandra , Barbaro Barbara , Costa Mafalda , Manhita Ana , Severi Egidio , Barrocas Dias Cristina , Magri Donatella
Published: March 2022

Archeobotanical materials recovered from pottery vessels originating from the underwater archeological site of “Gran Carro”, located in Central Italy on the shore of Bolsena Lake, were analyzed to obtain new insight into the agricultural habits present in this Iron Age settlement. The archeobotanical study of cereal remains was combined with analytical data obtained from an amorphous organic residue using optical microscopy, SEM-EDS, ATR/FT-IR and Py-GC/MS. The cereal remains of emmer wheat (Triticum dicoccum), barley (Hordeum vulgare), broomcorn millet (Panicum miliaceum), and foxtail millet (Setaria italica) were identified as the preferred crops used for food and/or fodder at the site. The presence of charred millets, which have been directly dated by AMS, confirms consumption at the site and adds to the little-known background of millet use in central Italy. The find of millets in a perilacustrine pile-dwelling during a period when the water level of the Bolsena Lake was several meters lower than at present, attesting to a general dry period, suggests that the cultivation of millets, complementing more productive crops of wheat and barley, may have been favored by the availability of a large seasonally dry coastal plain, characterized by poor and sandy soils unsuitable for more demanding cereals.
Bioremediation of 27 Micropollutants by Symbiotic Microorganisms of Wetland Macrophytes
Authors: Brunhoferova Hana , Venditti Silvia , Laczny Cédric C. , Lebrun Laura , Hansen Joachim
Published: March 2022

Background: Micropollutants in bodies of water represent many challenges. We addressed these challenges by the application of constructed wetlands, which represent advanced treatment technology for the removal of micropollutants from water. However, which mechanisms specifically contribute to the removal efficiency often remains unclear. Methods: Here, we focus on the removal of 27 micropollutants by bioremediation. For this, macrophytes Phragmites australis, Iris pseudacorus and Lythrum salicaria were taken from established wetlands, and a special experimental set-up was designed. In order to better understand the impact of the rhizosphere microbiome, we determined the microbial composition using 16S rRNA gene sequencing and investigated the role of identified genera in the micropollutant removal of micropollutants. Moreover, we studied the colonization of macrophyte roots by arbuscular mycorrhizal fungi, which are known for their symbiotic relationship with plants. This symbiosis could result in increased removal of present micropollutants. Results: We found Iris pseudacorus to be the most successful bioremediative system, as it removed 22 compounds, including persistent ones, with more than 80% efficiency. The most abundant genera that contributed to the removal of micropollutants were Pseudomonas, Flavobacterium, Variovorax, Methylotenera, Reyranella, Amaricoccus and Hydrogenophaga. Iris pseudacorus exhibited the highest colonization rate (56%). Conclusions: Our experiments demonstrate the positive impact of rhizosphere microorganisms on the removal of micropollutants.
Constructing a Socially Sustainable Culture of Participation for Caring and Inclusive ECEC
Authors: Weckström Elina , Lastikka Anna-Leena , Havu-Nuutinen Sari
Published: March 2022

The aim of this research was to explore a socially sustainable culture of participation in which all members of the community can be heard, make initiatives, express their opinions, and alter their practices. We conducted the study by analysing three separate sets of empirical research data in which participation was investigated in an early childhood education and care (ECEC) context and in club activities for children aged 4–12 and the elderly. The data include children’s perspectives regarding participation, ECEC practitioners’ perspectives on a culture of participation, and children’s and ECEC practitioners’ shared project-based practices. The results show that children and ECEC practitioners were willing to commit to new practices and construct a collective ‘we-narrative’. A we-narrative created a foundation for the conceptual model of a socially sustainable culture of participation, including the prerequisites of participation in adult practices, the goal of participation in children’s and adults’ shared activities, and a tool for strengthening participation. According to the results, a socially sustainable culture of participation is holistic and dynamic, and children can have an effect on daily activities, including basic care situations, as well as part of the educational activities.
Implementation Perspectives for the European Green Deal in Central and Eastern Europe
Authors: Ciot Melania-Gabriela
Published: March 2022

The present paper aims to identify the main factors that influence the capacity building for the Green Deal’s implementation in Member States from the central EU (Poland, Czech Republic, Slovakia, Hungary and Romania) and the improvements that can be made in this regard. The research is empirical and explanatory, using qualitative strategy and the following methods: observation, a case study and a comparative method, for a period of ten years (2011–2020). The main findings of the research indicate four distinct categories of factors that could predict the capacity building for the Green Deal’s implementation: cultural, political, economic and social; as well as a differentiation of the Green Deal’s implementation in different stages at the EU level: industrialized Member States from the west and north, Member States from the south and north (Baltic states), and Member States from the central and south-east. The elaboration of national and regional plans for implementation and regional cooperation will provide suitable solutions, supported by the recovery and resilience funds. The research reveals that the prognosis for the Green Deal’s implementation in all of the investigated Member States is negative. The limitation of the research consists in its explanatory nature, which inhibits the ability to make definite conclusions.
Urban Ventilation in the Compact City: A Critical Review and a Multidisciplinary Methodology for Improving Sustainability and Resilience in Urban Areas
Authors: Palusci Olga , Cecere Carlo
Published: March 2022

In the last decades, a tendency towards urban tissue densification has been observed to counteract the urban sprawl. Densification may be achieved through more compact built areas, preferring the vertical to the horizontal development of buildings but avoiding bulky high-rise building blocks. This strategy significantly affects several aspects of the microclimate and produces direct and indirect effects on human health and well-being. In this regard, air pollution and heat stress constitute two increasing threats to human health and well-being that need to be faced immediately. The involved phenomena are various, intertwined, and may lead to conflicting results. Hence, regenerating existing, well-structured, and stratified urban areas by densification is not an easy challenge. Urban ventilation may favor the mitigation of detrimental effects of air pollution and heat stress on human life. Therefore, a multidisciplinary methodology is presented for embedding urban ventilation performance evaluation into urban management and planning processes. The scope is to propose a framework for urban renewal plans that is citizens-centered and aims at improving their health and well-being in existing urban areas. The methodology builds upon the performance-based approach and is supported by the conceptual framework and the literature reviews provided through the paper.
Designer Ecosystems for the Anthropocene—Deliberately Creating Novel Ecosystems in Cultural Landscapes
Authors: Alexandra Jason
Published: March 2022

Accepting that nature and culture are intricately co-evolved has profound implications for the ethical, legal, philosophical and pragmatic dimensions of social and environmental policy. The way we think about nature affects how we understand and manage ecosystems. While the ideals of preserving wilderness and conserving ecosystems have motivated much conservation effort to date, achieving these ideals may not be feasible under Anthropocene conditions unless communities accept custodial responsibilities for landscapes and other species. This paper’s origins are in the author’s work with the Martuwarra Fitzroy River Council representing Indigenous traditional owners in Australia’s Kimberley region. These landscapes, shaped by 60,000 years of human occupation, interweave knowledge, laws and governance regimes, and material and spiritual connections with country. This interweaving offers insights into options for dealing with humanity’s complex sustainability challenges. The paper also draws on the literature about cultural landscapes, ecological design, agroecology and permaculture to explore options for applying ecological design as a planning and problem-solving framework. The paper concludes that design-based approaches offer significant opportunities for using ecological science to integrate conservation and production in agricultural landscapes in ways that can meet human needs while also conserving biodiversity under climate change.