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Site index determination using a time series of airborne laser scanning data

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FOREST ECOSYSTEMS 2025年第1期12卷 93-103页

作者： Moan, maria asnes Bollandsas, Ole Martin Saarela, Svetlana Gobakken, Terje Naesset, Erik Orka, Hans Ole Noordermeer, Lennart Norwegian Univ Life Sci Fac Environm Sci & Nat Resource Management N-1432 As Norway

Site index (SI) is determined from the top height development and is a proxy for forest productivity, defined as the expected top height for a given species at a certain index age. In Norway, an index age of 40 years is used. By using bi-temporal airborne laser scanning (ALS) data, SI can be determined using models estimated from SI observed on field plots (the direct approach) or from predicted top heights at two points in time (the height differential approach). Time series of ALS data may enhance SI determination compared to conventional methods used in operational forest inventory by providing more detailed information about the top height development. We used longitudinal data comprising spatially consistent field and ALS data collected from training plots in 1999, 2010, and 2022 to determine SI using the direct and height differential approaches using all combinations of years and performed an external validation. We also evaluated the use of data assimilation. Values of root mean square error obtained from external validation were in the ranges of 16.3%-21.4% and 12.8%-20.6% of the mean field- registered SI for the direct approach and the height differential approach, respectively. There were no statistically significant effects of time series length or the number of points in time on the obtained accuracies. Data assimilation did not result in any substantial improvement in the obtained accuracies. Although a time series of ALS data did not yield greater accuracies compared to using only two points in time, a larger proportion of the study area could be used in ALS-based determination of SI when a time series was available. This was because areas that were unsuitable for SI determination between two points in time could be subject to SI determination based on data from another part of the time series.

关键词： Site index Time series Airborne laser scanning Direct approach Height differential approach Data assimilation

The Gravitational Potential and the Gravitational Force According to the Correct Reissner-Nordstrøm, Kerr and Kerr-Newman Metrics

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Journal of Modern Physics 2025年第1期16卷 52-92页

作者： Carlo maria Pace ICRANet Pescara Italy

In a recent article, we have corrected the traditional derivation of the Schwarzschild metric, thus obtaining the formulation of the correct Schwarzschild metric, which is different from the traditional Schwarzschild metric. Then, in another article by starting from this correct Schwarzschild metric, we have corrected also the Reissner-Nordstrøm, Kerr and Kerr-Newman metrics. On the other hand, in a third article, always by starting from this correct Schwarzschild metric, we have obtained the formulas of the correct gravitational potential and of the correct gravitational force in the case described by this metric. Now, in this article, by starting from these correct Reissner-Nordstrøm, Kerr and Kerr-Newman metrics and proceeding in a manner analogous to this third article, we obtain the formulas of the correct gravitational potential and of the correct gravitational force in the cases described by these metrics. Moreover, we analyze these correct results and their consequences. Finally, we propose some possible crucial experiments between the commonly accepted theory and the same theory corrected according to this article.

关键词： General Theory of Relativity Schwarzschild Reissner-Nordstrøm Kerr Kerr-Newman Metric Gravitational Potential Gravitational Force Orbital Motion

Showing Love and Care

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空中英语教室(初级版.大家说英语) 2025年第2期 24-26,52,53页

作者： maria Chiu 不详

We all have special people in our *** care about them and want to show love to *** can you do that?Spend time with them and listen to *** them your full *** generous with gifts,*** can give gifts at any *** are a nice... 详细信息

关键词： Love you listen

How To Make a Pop-Up Card

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空中英语教室(初级版.大家说英语) 2025年第2期 6-7,50页

作者： maria Chius 不详

1 Fold two pieces of paper in half from top to bottom.2 Take one piece of *** the center of the folded side,cut two 3-cm lines.v^Cut them 5 cm apart.3 Open the card and push the tab in from the back.

关键词： push Open piece

THE LIBRARY'S NEW LAYOUT

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空中英语教室(初级版.大家说英语) 2025年第2期 27-29,53,56页

作者： maria Chiu 不详

How to Make Instant Coffee

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空中英语教室(初级版.大家说英语) 2025年第1期 12-13,51页

作者： maria Chiu 不详

Dysregulation of genes involved in the long-chain fatty acid transport in pancreatic ductal adenocarcinoma

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 199-206页

作者： Radu Cristian Poenaru Elena Milanesi Andrei marian Niculae Anastasia-maria Dobre Catalina Vladut Mihai Ciocîrlan Daniel Vasile Balaban Vlad Herlea maria Dobre Mihail Eugen Hinescu Faculty of Medicine Carol Davila University of Medicine and PharmacyBucharest 050474Romania Department of Radiobiology Victor Babes National Institute of PathologyBucharest 050096Romania Department of Pathology Victor Babes National Institute of PathologyBucharest 050096Romania Department of Gastroenterology Prof.Dr.Agrippa Ionescu Clinical Emergency HospitalBucharest 011356Romania Department of Pathology Fundeni Clinical InstituteBucharest 022258Romania

BACKGROUND Pancreatic ductal adenocarcinoma(PDAC)is an aggressive lethal malignancy with limited options for treatment and a 5-year survival rate of 11%in the United *** for other types of tumors,such as colorectal cancer,aberrant de novo lipid synthesis and reprogrammed lipid metabolism have been suggested to be associated with PDAC development and *** To identify the possible involvement of lipid metabolism in PDAC by analyzing in tumoral and non-tumoral tissues the expression level of the most relevant genes involved in the long-chain fatty acid(FA)import into *** A gene expression analysis of FASN,CD36,SLC27A1,SLC27A2,SLC27A3,SLC27A4,SLC27A5,ACSL1,and ACSL3 was performed by qRT-PCR in 24 tumoral PDAC tissues and 11 samples from non-tumoral pancreatic tissues obtained via fine needle aspiration or via surgical *** genes were considered significantly dysregulated between the groups when the p value was<0.05 and the fold change(FC)was≤0.5 and≥*** We found that three FA transporters and two long-chain acyl-CoA synthetases genes were significantly upregulated in the PDAC tissue compared to the non-tumoral tissue:SLC27A2(FC=5.66;P=0.033),SLC27A3(FC=2.68;P=0.040),SLC27A4(FC=3.13;P=0.033),ACSL1(FC=4.10;P<0.001),and ACSL3(FC=2.67;P=0.012).We further investigated any possible association between the levels of the analyzed mRNAs and the specific characteristics of the tumors,including the anatomic location,the lymph node involvement,and the presence of metastasis.A significant difference in the expression of SLC27A3(FC=3.28;P=0.040)was found comparing patients with and without lymph nodes involvement with an overexpression of this transcript in 17 patients presenting tumoral cells in the lymph *** Despite the low number of patients analyzed,these preliminary results seem to be *** lipid metabolism through a broad strategy could be a beneficial way to treat this *** in vitro and in vivo s

关键词： Carcinoma Pancreatic ductal Fatty acid transport Gene expression Biomarkers

Lighting the shades of hidden pain:a role for spinal cord neurons and microglia in vestibulodynia

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Neural Regeneration Research 2025年第10期20卷 2898-2900页

作者： Rosmara Infantino Francesca Gargano Serena Boccella Carmela Belardo Andrea maria Morace Francesca Guida Sabatino Maione Livio Luongo Department of Experimental Medicine Division of PharmacologyUniversitàdegli Studi della Campania“L.Vanvitelli”Italy UniversitàCampus Bio-medico di Roma RomeItaly

Vulvodynia,a chronic pain disorder affecting the vulvar region,represents a significant challenge in both diagnosis and treatment within the field of women’s *** condition is characterized by chronic pain that significantly affects the quality of life of afflicted *** present perspective paper examines the role of spinal sensitization and microglial activation in vulvodynia.

关键词： pain diagnosis activation

Assessment of skeletal muscle alterations and circulating myokines in metabolic dysfunction-associated steatotic liver disease:A crosssectional study

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World Journal of Gastroenterology 2025年第7期31卷 63-73页

作者： Yolanda Real Martinez Carlos Ernesto Fernandez-Garcia Esther Fuertes-Yebra Mario Calvo Soto Angela Berlana Vicente Barrios maria Caldas Leticia Gonzalez Moreno Luisa Garcia-Buey Begoña Molina Baena Miguel Sampedro-Nuñez maria J Beceiro C García-Monzón Águeda González-Rodríguez Servicio Aparato Digestivo Hospital Universitario La PrincesaInstituto de Investigación Sanitaria La PrincesaUniversidad Autónoma de MadridMadrid 28006Spain Unidad de Investigación Hospital Universitario Santa CristinaInstituto de Investigación Sanitaria La PrincesaMadrid 28009Spain Department of Endocrinology Department of PediatricsHospital Infantil Universitario Niño JesúsInstituto de Investigación La PrincesaMadrid 28009Spain Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición Instituto de Salud Carlos IIIMadrid 28029Spain Servicio de Endocrinología y Nutrición Hospital Universitario La PrincesaInstituto de Investigación Sanitaria La PrincesaUniversidad Autónoma de MadridMadrid 28006Spain Instituto de Investigaciones Biomédicas Sols-Morreale(IIBM) CSIC-UAMMadrid 28029Spain Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas Madrid 28029Spain

BACKGROUND Skeletal muscle alterations(SMAs)are being increasingly recognized in patients with metabolic dysfunctionassociated steatotic liver disease(MASLD)and appear to be associated with deleterious outcomes in these ***,their actual prevalence and pathophysiology remain to be *** To determine the prevalence of SMAs and to assess the significance of circulating myokines as biomarkers in patients with *** Skeletal muscle strength and muscle mass were measured in a cross-sectional study in a cohort of 62 patients fulfilling MASLD criteria,recruited from the outpatient clinics of a tertiary level *** degree of fibrosis and liver steatosis was studied using abdominal ultrasound and transitional *** and metabolic characteristics as well as serum levels of different myokines were also determined in the MASLD *** analysis was performed comparing results according to liver fibrosis and *** No significant differences were found in both skeletal muscle strength and skeletal muscle mass in patients with MASLD between different stages of liver ***,serum levels of fibroblast growth factor-21(FGF21)were significantly higher in patients with MASLD with advanced hepatic fibrosis(F3-F4)than in those with lower fibrosis stages(F0-F2)(197.49±198.27 pg/mL vs 95.62±83.67 pg/mL;P=0.049).In addition,patients with MASLD with severe hepatosteatosis(S3)exhibited significantly higher serum levels of irisin(1116.87±1161.86 pg/mL)than those with lower grades(S1-S2)(385.21±375.98 pg/mL;P=0.001).CONCLUSION SMAs were uncommon in the patients with MASLD *** serum levels of irisin and FGF21 were detected in patients with advanced liver steatosis and fibrosis,respectively,with potential implications as biomarkers.

关键词： Skeletal muscle alterations Myokines Metabolic dysfunction-associated steatotic liver disease Liver fibrosis Hepatosteatosis