Article
Plant Sciences
Mia T. Wavrek, Eric Carr, Sharon Jean-Philippe, Michael L. McKinney
Summary: We used drone remote sensing to analyze the relationship between field-collected forest health indicators and four Vegetative Indices (VI) in order to improve conservation management of urban forests. Our findings showed that the calculated VI values from drone imagery were significantly related to ecological concerns, forest composition, and equitability. Despite the limitations of the small number of plots, our results indicate the potential for drone remote sensing as a low-cost and efficient tool for urban forest management.
URBAN FORESTRY & URBAN GREENING
(2023)
Article
Plant Sciences
Michael M. Bahe, Ryan L. Murphy, Matthew B. Russell, Joseph F. Knight, Gary R. Johnson
Summary: The efficacy of a miniature multispectral, single-sensor camera for detecting stress in deciduous juvenile tree foliage in a controlled environment was validated in this study. Results showed that NDVI values were reliable indicators of tree stress within species groups, but not across species groups.
URBAN FORESTRY & URBAN GREENING
(2021)
Article
Environmental Sciences
Simon Ian Futerman, Yael Laor, Gil Eshel, Yafit Cohen
Summary: This article proposes a novel approach to use remote sensing of cover crops to map soil nutrient availability and generate prescription maps for precision basal fertilization. It introduces the concept of using cover crops as reflectors of soil nutrient availability and describes two case studies to evaluate its feasibility. The article highlights the potential benefits and limitations of incorporating remote sensing with cover crops in sustainable agriculture.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Plant Sciences
Karen Marti-Jerez, Mar Catala-Forner, Nuria Tomas, Gemma Murillo, Carlos Ortiz, Maria Jose Sanchez-Torres, Andrea Vitali, Marta S. Lopes
Summary: This study assessed the application of organic fertilizers and remote sensing in rice cultivation. The results showed that organic fertilizers reduced nitrogen loss but also decreased yield. Remote sensing effectively detected and managed nutrient deficiencies.
FRONTIERS IN PLANT SCIENCE
(2023)
Review
Agronomy
Ali Ahmad, Javier Ordonez, Pedro Cartujo, Vanesa Martos
Summary: This review discusses the sustainable perspective of using remotely piloted aircraft (RPA) or drone technology in the agriculture sector, highlighting their applications in crop monitoring, disease detection, and yield estimation. Additionally, it mentions the significant applications of RPAs in livestock, forestry, and various other agricultural aspects, along with considerations of technology efficiency, cost, and limitations based on previous studies.
Review
Agriculture, Multidisciplinary
Hamid Jafarbiglu, Alireza Pourreza
Summary: This paper provides a comprehensive review of remote sensing platforms, sensors, applications, and analytic pipelines in the context of nut crops. The findings suggest that the choice of sensor and platform depends on the acreage and purpose of the nut orchards. While various sensors have shown promising results in other crops, they have not been extensively used for nut crops. Accurate sensor calibration is crucial for obtaining repeatable results and enabling temporal and inter-field comparisons. Most remote sensing applications in nut orchards are limited, except for water management, presenting research opportunities. The increasing data size requires the adoption of new machine learning techniques and data fusion frameworks to handle all variables and fill the knowledge gap.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2022)
Article
Agriculture, Multidisciplinary
L. Gonzalez-Gomez, D. S. Intrigliolo, J. S. Rubio-Asensio, I Buesa, J. M. Ramirez-Cuesta
Summary: The current water scarcity situation has resulted in the adoption of sustainable agricultural practices to improve water use efficiency. This study evaluated the response of a young almond orchard to two management practices using remote sensing indexes and physiological/morphological measurements. The findings demonstrated the suitability of remote sensing and physiological measurements in assessing the almond tree's response to different management practices.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Article
Computer Science, Information Systems
Lorena Parra, David Mostaza-Colado, Jose F. Marin, Pedro V. Mauri, Jaime Lloret
Summary: This article presents a preliminary method for differentiating between chickpea, lentil, and ervil in an intercropping agroecosystem using images taken with a drone and the combination of Vegetation Index and Soil Index. The results indicate that it is possible to differentiate between the three crops, with the highest accuracy achieved for chickpea recognition.
Article
Environmental Studies
Marco Bascietto, Enrico Santangelo, Claudio Beni
Summary: The study found a significant correlation between the soil colloidal status and the relative quantity of Ca2+ ions in the exchange complex with NDVI variability in wheat cultivation fields, while no relationship emerged between NDVI and soil macronutrients concentration. Therefore, rational soil fertility management requires integrating NDVI data with the overall soil physical/chemical status.
Review
Plant Sciences
Dedi Yang, Bailey D. Morrison, Kenneth J. Davidson, Julien Lamour, Qianyu Li, Peter R. Nelson, Wouter Hantson, Daniel J. Hayes, Tyson L. Swetnam, Andrew McMahon, Jeremiah Anderson, Kim S. Ely, Alistair Rogers, Shawn P. Serbin
Summary: The Arctic is experiencing faster warming than any other biome, leading to significant changes in vegetation. The use of unmanned aerial systems (UASs) with remote sensing instruments has emerged as a valuable tool to study and monitor these ecosystems, providing detailed observations at fine spatial scales and flexible temporal resolutions.
JOURNAL OF ECOLOGY
(2022)
Article
Engineering, Multidisciplinary
Mingshun Xiang, Qiuchi Deng, Linsen Duan, Jin Yang, Chunjian Wang, Jiashuo Liu, Mengli Liu
Summary: This study uses remote sensing and Geographic Information System (GIS) techniques to investigate the spatiotemporal differentiation of vegetation coverage in the earthquake stricken area of Beichuan County, Sichuan Province. The results show that the overall vegetation coverage in Beichuan County is high, and the earthquake has caused severe damage to areas with high vegetation coverage. From 2007 to 2020, the vegetation coverage gradually recovered with noticeable spatiotemporal differences. Elevation is found to be the most influential factor on vegetation coverage.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Geography, Physical
Samuel Hillman, Luke Wallace, Karin Reinke, Simon Jones
Summary: Advances in fire behavior modeling are driving the development of next generation fuel inputs, with Unoccupied Aerial Systems (UAS) carrying Light Detection and Ranging (LiDAR) sensors proposed as a potential source of fine fuel properties. This study evaluates the ability of UAS LiDAR point clouds to describe crown fuel elements in eucalypt trees, showing promising results in separating crown fuel and wood compared to dense Terrestrial Laser Scanning (TLS) data.
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING
(2021)
Article
Agronomy
Paul Heinemann, Urs Schmidhalter
Summary: The study evaluates regression models of spectral indices derived from an unmanned aerial vehicle (UAV) for nitrogen-related traits and grain yield of maize. It suggests that agronomic error limits should be included in addition to common statistical measures in the spectral assessment to optimize N-fertilization analysis.
FIELD CROPS RESEARCH
(2022)
Article
Environmental Sciences
Rafael Siqueira, Dipankar Mandal, Louis Longchamps, Raj Khosla
Summary: This study aims to evaluate the accuracy of mobile in-field fluorescence sensor measurements in quantifying nitrogen indicators variability in maize canopy during early growth season. The results showed that fluorescence sensor can successfully differentiate the variability among different nitrogen treatments, and the accuracy is higher at the V9 stage. When combined with machine learning model, fluorescence-based indices can estimate canopy nitrogen indicators at different growth stages. Mobile fluorescence sensing can accurately determine canopy nitrogen variability in early growth stages of maize, assisting farmers in optimal nitrogen management.
Article
Agronomy
Paul Heinemann, Stephan Haug, Urs Schmidhalter
Summary: This study evaluates regression models of spectral indices in capturing N uptake using hyperspectral ground-based and multispectral unmanned aerial vehicles (UAV). It suggests that solely using commonly used statistical measures is not sufficient for an agronomic evaluation and agronomically based detection limits should be considered in addition to common statistical measures in the spectral assessment of wheat N uptake.
EUROPEAN JOURNAL OF AGRONOMY
(2022)
Article
Dentistry, Oral Surgery & Medicine
Hisham M. Abada, Ahmed Abdel Rahman Hashem, Ashraf Mohamed Abu-Seida, Mohamed Mokhtar Nagy
Summary: This study evaluated the regenerative potential of permanent necrotic mature teeth with different apical foramen diameters compared to conventional endodontic treatment. Results showed that increasing the apical size diameter was associated with less inflammatory cell count, less bone resorption, more tissue ingrowth, and more percentage of new hard tissue formation inside the root canal. The minimum apical diameter that should be enlarged for regenerative endodontic therapy is 0.4 mm.
CLINICAL ORAL INVESTIGATIONS
(2022)
Article
Pharmacology & Pharmacy
Shaimaa T. Mansour, Ahmed Hashem, Mansoura A. Abd-El-Maksoud, Marwa El-Hussieny, Aida El-Makawy, Sekena H. Abdel-Aziem, Fouad M. Soliman
Summary: Phosphonium compounds are an attractive area of research for producing novel drugs. Different sulfidomethyl phosphonium derivatives can be synthesized through reactions. The synthesized compounds have shown potential anticancer activity by promoting programmed cell death (apoptosis).
FUNDAMENTAL & CLINICAL PHARMACOLOGY
(2022)
Article
Agronomy
Joseph H. Massey, M. Cade Smith, Thais M. Jardim, Luis A. Avila, Ahmed A. Hashem, Michele L. Reba
Summary: This research aims to make the Cascade rice flood distribution (CASC) method more water efficient by devising practices that reduce irrigation water use. By using flood depth to trigger irrigation shutoff, the early cascade rice irrigation shutoff (ECIS) can significantly save irrigation water, reduce field run-off, and manage flood depth. The results suggest the potential application of ECIS coupled with irrigation automation technologies to reduce aquifer withdrawals in the lower Mississippi River basin (LMRB) rice producing areas.
IRRIGATION SCIENCE
(2023)
Article
Dentistry, Oral Surgery & Medicine
Ahmed Abdel Rahman Hashem, Alaa Adly Abd Sattar, Tariq Yehia Abdel Rahman
Summary: This study evaluated the efficacy of trypsin-chymotrypsin in managing postoperative pain after root canal treatment and investigated synergistic effects with nonsteroidal anti-inflammatory drugs as well as reported side effects. The results showed that trypsin-chymotrypsin demonstrated comparable effectiveness to nonsteroidal anti-inflammatory drugs in reducing postoperative pain, and no synergistic effects were observed when the two were used in combination. This is the first randomized controlled trial to assess the effects of proteolytic enzymes on postendodontic pain.
JOURNAL OF ENDODONTICS
(2023)
Article
Environmental Sciences
S. Karki, M. A. A. Adviento-Borbe, B. R. K. Runkle, B. Moreno-Garcia, M. Anders, M. L. Reba
Summary: This study demonstrates that the alternate wetting and drying (AWD) irrigation management can significantly reduce methane emissions from rice paddies. The results show that AWD reduces methane emissions by 73% compared to continuously flooded management. Furthermore, AWD has no significant impact on grain yield and nitrous oxide emissions.
JOURNAL OF ENVIRONMENTAL QUALITY
(2023)
Article
Agronomy
Megahed M. Amer, Hesham M. Aboelsoud, Eman M. Sakher, Ahmed A. Hashem
Summary: This study aimed to improve the soil properties, yield, and water productivity of faba beans in salt-affected soils through the application of gypsum, compost, and nanoparticles. The results showed that the combined application of gypsum and compost, as well as the foliar application of manganese and selenium nanoparticles, significantly improved soil salinity, sodium content, soil porosity, and infiltration. It also increased the yield and water productivity of faba beans.
Article
Dentistry, Oral Surgery & Medicine
Ahmed Ali, Ahmed Abdel Rahman Hashem, Nehal Nabil Roshdy, Adel Abdelwahed
Summary: The objective of this study was to evaluate the effects of different irrigation activation techniques on postoperative pain and analgesic intake in patients with symptomatic irreversible pulpitis. The results showed that there was no significant difference in pain and analgesic intake among the different groups.
EUROPEAN ENDODONTIC JOURNAL
(2023)
Article
Dentistry, Oral Surgery & Medicine
Mai Mohamed, Ahmed Abdel Rahman Hashem, Maram Farouk Obeid, Ashraf Abu-Seida
Summary: This study compared the pulpal response of Hoffmann's Pulpine mineral (PMIN) and Pulpine NE (PNE) to mineral trioxide aggregate (MTA) when used as pulpotomy materials in immature permanent teeth. The results showed that PMIN is a promising alternative to MTA.
CLINICAL ORAL INVESTIGATIONS
(2023)
Article
Plant Sciences
Luis A. de Avila, Carla R. Zemolin, Joseph H. Massey, Edinalvo R. Camargo, Mauricio C. Files, Guilherme Cassol
Summary: Several factors, including herbicide application history, soil moisture, and co-application with other herbicides, affect the mineralization of herbicides in soil. This study evaluated the mineralization of S-metolachlor in soil and found that higher soil moisture content led to higher mineralization. The mixture of S-metolachlor with glyphosate increased its degradation rate, and cornfield soil with a history of S-metolachlor application showed higher mineralization. However, the influence of sorption should be considered in drawing definitive conclusions.
ADVANCES IN WEED SCIENCE
(2023)
Article
Materials Science, Composites
Hoda S. Eldin, Nabil A. Abdullah, Mahmoud F. Ismail, Ahmed Hashem
Summary: Calcined kaolinite was produced by thermal treatment of raw kaolinite, and the optimal activation parameters were determined. The formation process of the calcined kaolinite was analyzed, and its suitability for fabricating adsorbent material was confirmed.
EPITOANYAG-JOURNAL OF SILICATE BASED AND COMPOSITE MATERIALS
(2022)
Article
Dentistry, Oral Surgery & Medicine
Mohamed Salah Abdel Aziz El-wakeel, Ahmed Abdel Rahman Hashem, Sarah Hossam Fahmy, Shehabeldin Mohamed Saber, Gianluca Plotino
Summary: This study assessed the impact of elemental composition, core metal mass, and phase transformation behavior on the dynamic cyclic fatigue resistance of Ni-Ti rotary files. The results showed that the resistance increased when the files had less metal mass, lower Ni content, a thermally treated surface, and a martensite phase at body temperature.
GIORNALE ITALIANO DI ENDODONZIA
(2022)