jimnoneill/paper-to-field-training huggingface dataset:
Biomass, carbon storage and nutrient content of coarse woody debris in secondary-growth forests in southern Hunan

Field: Environmental Science (Physical Sciences)

PDF HTML阅读 XML下载 导出引用 引用提醒 湘南典型次生林粗木质残体生物量、碳储量和养分特征 DOI: 10.5846/stxb202009262498 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 国家重点研发计划资助(2020YFA0608100);湖南省重点研发计划项目(2020NK2022);湖南省教育厅创新平台开放基金项目(18K054);湖南省教育厅优秀青年项目(18B171) Biomass, carbon storage and nutrient content of coarse woody debris in secondary-growth forests in southern Hunan Author: Affiliation: Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:对九龙江森林公园次生常绿阔叶林粗木质残体(CWD)进行量化研究,了解亚热带典型次生林CWD的本底数据。以九龙江森林公园典型天然次生林中的6个20m×20m的标准样地为对象,调查并分析样地内不同分解等级CWD的生物量、碳储量和养分特征变化。九龙江森林公园亚热带典型次生林的CWD储量在2.8-30.4t/hm2之间,碳储量在6.10-6.75t/hm2之间,大量营养元素(N、P、K、Ca、Mg)含量相对稳定,化学计量变化不显著,微量营养元素中Pb与Cd元素含量随着分解等级的增加而增加。九龙江森林公园亚热带典型次生林的CWD储量在亚热带常绿阔叶林中处于中等水平,CWD主要以分解中后期的倒木为主,反映出该次生林处于中幼龄林阶段,具有较高的碳储量,养分含量相对稳定,并表现出Pb与Cd在CWD中积累的现象,在中度分解和重度分解的CWD中Pb含量分别增加了62.65%和69.88%,Cd含量则分别增加了33.33%和100%,其内在机理有待进一步深入研究。研究结果有助于进一步了解CWD如何参与森林生态系统养分循环、重金属积累等生态过程,比较不同林分干扰历史下CWD储量、分布及养分特征的异质性,补充CWD参与碳循环和碳平衡过程的本底数据,为亚热带典型次生林的保护与可持续经营提供了科学依据。 Abstract:In order to understand the structural and function roles played by coarse woody debris (CWD) in typically subtropical secondary-growth forests, the biomass, carbon storage and nutrient content of CWD were investigated in Jiulongjiang Forest Park, southern Hunan, China. The result showed the CWD biomass ranged from 2.8 t/hm2 to 30.4 t/hm2 and the carbon storage ranged from 6.095 t/hm2 to 6.751 t/hm2 in the study sites. The contents of other nutrients (N, P, K) were relatively stable, and the stoichiometric changes were not significant. The contents of Pb and Cd increased with the increase of decay classes. The CWD storage of the typical subtropical secondary forest in Jiulongjiang Forest Park was at a middle level when compared to the existing cases of the subtropical evergreen broad-leaved forests elsewhere. The CWD was mainly composed by logs in the medium- and late-decay, which reflected this forest was in the stage of young growth forest, with high carbon storage, relatively stable nutrient content. In the medium- and late-decay, the Pb content increased by 62.65% and 69.88% respectively, the Cd content increased by 33.33% and 100%, respectively, the internal mechanism of the significant accumulation of Pb and Cd in CWD needed to be further studied. The results could help us understand how CWD participates in the ecological processes such as nutrient cycling and heavy metal accumulation in forest ecosystems, help to compare the heterogeneity of CWD reserves, distribution and nutrient content under different forest disturbances history, supplement the background data of CWD's participation in the carbon cycle and carbon balance process. The results provide scientific basis for the protection and sustainable management of subtropical secondary forests. 参考文献 相似文献 引证文献
Genetic Gains to Grain Yield of Maize Varieties for Small Farmers in Brazil

Field: Agricultural and Biological Sciences (Life Sciences)

The demand for expanding the genetic base in working collections of older maize breeding programs points to the need to pool efforts and reaffirm methodologies for conserving genetic variability that can still be accessed in maize populations. The objective of the work was to select full sib maize progenies and to estimate genetic gains in the first cycle of reciprocal recurrent selection for common maize intended for cultivation in a region characterized by family farm, in Brazil. We evaluated 120 full sib families of maize from crossbreeding between individuals of the Cimmyt and Piranão varieties. Competition trials were conducted at two experimental stations in the state of Espírito Santo, Brazil. A randomized block design was adopted with 2 repetitions, arranged in sets. Different selection indexes were tested in order to enhance gains in productivity and prolificacy. The selection of 40 superior families made it possible to estimate a gain of 0.77 Mg ha-1 in grain productivity for producers in the region. With these results, we discussed the importance of work to improve maize populations for small producers to motivate the conservation of the genetic variability of tropical maize germplasm. Thus, from the results obtained in this study, we show the possibility of investing in technologies aimed at small producers in order to motive the conservation of genetic resources, food sovereignty of producers and, consequently, world security, given the importance of this culture for human feed.
Microvascular changes during the healing process of tooth extracted wound transplanted with the decalcified freeze-dried allografts.

Field: Dentistry (Health Sciences)

In this study, decalcified freeze-dried allografts (DFs) were transplanted into the extracted sockets in rats. New bone formation and microvascular changes during the healing process were investigated.DFs were prepared according to the method described by Huggins et al. Bilateral upper first molars of 6-week-old rats were extracted. DFs were transplanted into the right sockets and surved as the experimental group and the left side sockets were left intact as the control group. The rats were killed at 3, 7, 10 days and 2, 3, 4 weeks postoperatively. Serial histological sections were stained with hematoxylin and eosin for light microscopy, and microvascular casts were made according to Ohta's method for scanning electron microscopic (SEM) observation.Control group: On and after 3 days postoperatively, new bone formation initiated in the fundus of the sockets. The entire sockets were filled with a new bone up to 2 weeks and bone remodeling occurred in the fundus of sockets thereafter. In 4 weeks, a lamella-like bone structure was formed in the socket openings with a marrow observed in the fundus of the sockets. Resorption of buccal alveolar crests was observed between 7 days and 3 weeks after operation. The surface of the new bone was flat and continuous to the buccal alveolar bone.Experimental group: New bone formation was observed at the same time as the control group. In 3 days, collagen was removed from the surface and the crevice of DF, and in 10 days, DFs were resorbed into small units. In 2 weeks, DFs were surrounded with thus formed new bone, and gradually incorporated into the new bone by 4 weeks. The incorporation of DFs into the new bone was first observed in the fundus of the sockets, and then observed in the socket openings for a long time. Resorption of buccal alveolar crests was hardly observed.When transplanted into the extracted sockets, DFs remained for 4 weeks and were incorporated into the new bone. And the new bone recovered the original level of the alveolar ridge. This result suggests that DF is useful for preventing the residual ridge reduction after extraction of teeth and is a valuable material in the clinical dentistry.
SOSIALISASI MANFAAT MAKAN IKAN SEBAGAI UPAYA PENCEGAHAN STUNTING DI POSYANDU TULIP DESA MAKRAMPAI KECAMATAN TEBAS

Field: Health Professions (Health Sciences)

Consuming fish is something that must be done routinely to stay physically and spiritually healthy. In our lives, we also need to pay attention to a healthy lifestyle to avoid various kinds of diseases that attack our bodies and the benefits of consuming this fish can also educate the brain for mothers and children because, Consuming fish plays a role in improving children's nutrition, acting as an antioxidant, educating children and reducing the risk of heart disease and maintaining the health of the mother and fetus, and also consuming fish can help the child's body develop, such as: Protein helps stimulate the growth of toddler brain cells, Omega 3 can improve brain function and mood in children, especially in learning, memory and brain development, Calcium functions for bone growth and development of the nervous system and muscle function in children's bodies, Vitamin A can be useful in preventing blindness and improving vision in children, Socialization activities it on November 14, 2022, this socialization activity can later increase knowledge about consuming fish and the system used by distributing brochures to mothers, and also providing detailed explanations regarding the themes raised which were carried out in Mak Rampai Village, Tebas District
Statistical Analysis of Zebrafish Locomotor Response

Field: Neuroscience (Life Sciences)

Zebrafish larvae display rich locomotor behaviour upon external stimulation. The movement can be simultaneously tracked from many larvae arranged in multi-well plates. The resulting time-series locomotor data have been used to reveal new insights into neurobiology and pharmacology. However, the data are of large scale, and the corresponding locomotor behavior is affected by multiple factors. These issues pose a statistical challenge for comparing larval activities. To address this gap, this study has analyzed a visually-driven locomotor behaviour named the visual motor response (VMR) by the Hotelling’s T-squared test. This test is congruent with comparing locomotor profiles from a time period. Different wild-type (WT) strains were compared using the test, which shows that they responded differently to light change at different developmental stages. The performance of this test was evaluated by a power analysis, which shows that the test was sensitive for detecting differences between experimental groups with sample numbers that were commonly used in various studies. In addition, this study investigated the effects of various factors that might affect the VMR by multivariate analysis of variance (MANOVA). The results indicate that the larval activity was generally affected by stage, light stimulus, their interaction, and location in the plate. Nonetheless, different factors affected larval activity differently over time, as indicated by a dynamical analysis of the activity at each second. Intriguingly, this analysis also shows that biological and technical repeats had negligible effect on larval activity. This finding is consistent with that from the Hotelling’s T-squared test, and suggests that experimental repeats can be combined to enhance statistical power. Together, these investigations have established a statistical framework for analyzing VMR data, a framework that should be generally applicable to other locomotor data with similar structure.
DIOS - database of formalized chemotherapeutic regimens.

Field: Health Professions (Health Sciences)

Chemotherapeutic regimens (CHR) and their administration are routine practice in contemporary oncology. The development of a structured, electronic database of standard CHR can help the faster propagation of information about new CHR and at the same time enable assessment of their adherence in clinical practice. The goal was to develop a standardized way to describe a regimen using XML, fill the database with currently available regimens and develop tools to assess the adherence of the treatment to chosen regimen, compare the dose-intensity and recognize the regimen from existing data on drug administration. The data are being inserted in cooperation with expert oncologists and the database currently contains about 260 CHRs. Such system can be used to enhance decision support systems and interoperability of HIS. The database and tools are available online on the internet.
Rethinking Ethics Education in Business Schools in the Post-Financial Crisis Epoch

Field: Business, Management and Accounting (Social Sciences)

This chapter deals with a multitude of perspectives on ethics education in business schools and provides a compelling example of Iceland, where unethical behavior of its business elite and the total disregard for commonly accepted ethical rules of conducting business led to unsustainable expansion of the financial industry and its subsequent collapse in the fall of 2008. The authors examine whether ethics education or more precisely, the lack thereof, played any role in this financial collapse, and whether business schools should contribute to molding moral characters of their students, who will ultimately become the next generation of business leaders. Here are a few important highlights of what has been found. First, a consensus seems to have been reached that business schools have an important role in developing the moral character of their students, something they haven’t practiced sufficiently according to managers. Second, business schools ought to take a more direct part in a society’s discourse on business ethics and perhaps be in the forefront of these discussions. Third, there is a clear need for not only asking business schools to contribute to molding the moral character of students but to reshaping that of practicing managers through re-training and continuous education.
Spatial Downscaling of TRMM Precipitation Using an Optimal Regression Model with NDVI in Inner Mongolia, China

Field: Earth and Planetary Sciences (Physical Sciences)

Spatially high-resolution precipitation data is important for the users to study basin-scale hydro-logy and climate change. Inner Mongolia is a vast and sparsely populated region with sparse rainfall distribution. The Tropical Rainfall Measuring Mission (TRMM) satellites provide a remote-sensing data source covering the whole globe but is generally in coarse spatial resolution and cannot satisfy the needs of users for driving hydrological models or making sustainable plans for local areas. Downscaling is needed to achieve resolution refinement on the TRMM data. In this study, for the area of Inner Mongolia, four different models including exponential regression model (ERM), multiple linear regression model (MLR), generalized linear regression model (GLM), geographically weighted regression model (GWR) were used to obtain annual average precipitation data in a high resolution (1.0 km2), based on the 0.25-degree TRMM data during 2005–2016. The predictors for the downscaling were screened using stepwise regression. Results indicated that: (1) Compared with the GWR, only the MLR performs better in the northeastern part of Inner Mongolia; (2) According to the spatial pattern of precipitation and the verification based on the measured precipitation, GWR is the most suitable model for the region; (3) Due to the varied climates in different parts of Inner Mongolia, the idea of common regression, which uses a set of constant parameters across different areas, has a poor capability in capturing the high-value areas of precipitation, and local regression which uses varying parameters has a better performance, comparatively; (4) In the northwest Inner Mongolia, due to low vegetation coverage and sparse gauges, all the four models performs poorly.
Oligosymptomatic Eisenmenger syndrome in adolescent

Field: Medicine (Health Sciences)

Eisenmenger syndrome is characterized by high pulmonary pressure, caused by a high pulmonary flow state, with inverted shunt (right-to-left) or bidirectional. The condition is a complication of a congenital heart defect not repaired and the diagnosis is based on clinic, echocardiogram and cardiac catheterization. The case reported is a 13 years old teenager that had lost the follow-up a year after the diagnosis with 5 years old. She returned with dyspnea, worsening of echocardiographic patterns, pulmonary hypertension and under weight. Without surgical indication, the patient were followed up clinically for a year and evolved with a similar dyspnea pattern, healthy weight and normal neurological development. ES is an extreme condition in which, due to a previous cardiac defect, pulmonary vascular resistance becomes greater than systemic resistance and the flow reverses irreversibly, leading to high morbidity, mainly due to hypoxemia. Besides the surgical treatment, some drug options may be used, such as: bosentan, PDE-5i, prostanoids and sildenafil associated with bosentan. Bosentan is the first choice drug, the others should be evaluated individually. Despite the aforementioned therapeutic guidelines, it is essential to avoid congenital heart defects from reaching this dramatic picture. The oligosymptomatic evolution of the case describes a possibility of the natural history of this entity.
Ion channel TRPV1-dependent activation of PTP1B suppresses EGFR-associated intestinal tumorigenesis

Field: Biochemistry, Genetics and Molecular Biology (Life Sciences)

The intestinal epithelium has a high rate of turnover, and dysregulation of pathways that regulate regeneration can lead to tumor development; however, the negative regulators of oncogenic events in the intestinal epithelium are not fully understood. Here we identified a feedback loop between the epidermal growth factor receptor (EGFR), a known mediator of proliferation, and the transient receptor potential cation channel, subfamily V, member 1 (TRPV1), in intestinal epithelial cells (IECs). We found that TRPV1 was expressed by IECs and was intrinsically activated upon EGFR stimulation. Subsequently, TRPV1 activation inhibited EGFR-induced epithelial cell proliferation via activation of Ca2+/calpain and resulting activation of protein tyrosine phosphatase 1B (PTP1B). In a murine model of multiple intestinal neoplasia (Apc(Min/+) mice), TRPV1 deficiency increased adenoma formation, and treatment of these animals with an EGFR kinase inhibitor reversed protumorigenic phenotypes, supporting a functional association between TRPV1 and EGFR signaling in IECs. Administration of a TRPV1 agonist suppressed intestinal tumorigenesis in Apc(Min/+) mice, similar to--as well as in conjunction with--a cyclooxygenase-2 (COX-2) inhibitor, which suggests that targeting both TRPV1 and COX-2 has potential as a therapeutic approach for tumor prevention. Our findings implicate TRPV1 as a regulator of growth factor signaling in the intestinal epithelium through activation of PTP1B and subsequent suppression of intestinal tumorigenesis.
Entropy Estimation From Ranked Set Samples With Application to Test of Fit

Field: Mathematics (Physical Sciences)

This article deals with entropy estimation using ranked set sampling (RSS). Some estimators are developed based on the empirical distribution function and its nonparametric maximum likelihood competitor. The suggested entropy estimators have smaller root mean squared errors than the other entropy estimators in the literature. The proposed estimators are then used to construct goodness of fit tests for inverse Gaussian distribution.
Some unpublished letters from Thomas Henry Hall Caine to Dante Gabriel Rossetti (July 1879 - July 1881)

Field: Arts and Humanities (Social Sciences)

This thesis is a selected edition of thirty-six unpublished letters and fragments from Thomas Henry Hall Caine to Dante Gabriel Rossetti with an introduction and explanatory notes. The letters have been chosen to illustrate Caine's typical interests and concerns as these appear in the body of eighty-six unpublished letters and fragments contained in the Angeli Papers in Special Collections at the University of British Columbia Library. Although the letters are far from being masterpieces of epistolary art, they are of historical interest as a chronicle of the friendship which was initiated by letter. The introduction provides a background for the letters, using, in so far as possible, unpublished contemporaneous material from the Angeli and Penkill Papers. Hall Caine knew Rossetti for less than three years; for two of those years the friendship was conducted almost exclusively by letter, but for the last ten months of Rossetti1s life they lived together. The friendship began when Caine published a eulogistic article on Rossetti's poetry, and sent a copy to him. Caine was then an eager, ambitious, and very naive twenty-six year old Liverpudlian; Rossetti, a known painter and poet of fifty-one, was lonely, frightened, filled with morbid phantasies and a chloral hydrate addict. He was virtually a recluse in his gloomy London house, but Caine's letters revived his interest in literary criticism and during the last years of his life Rossetti taught Caine about literature. His "pupil's" interest and energy also helped to inspire Rossetti on his own behalf, for in 1881 he published a revised edition of Poems and a new book, Ballads and Sonnets. Very shortly after Rossetti*s death, Caine published his Recollections of Dante Gabriel Rossetti (1882), a biography of his friend which included some seventy-five fragments of the "nearly two hundred letters" he had received from Rossetti. In 1908 Caine included a large section on Rossetti in My Life, and in 1928 he produced a considerably altered version of his first biography. Caine became a prolific and popular novelist and playwright, was knighted for his war effort, and made a Companion of Honour "in recognition of his distinction in literature," but in spite of his successes, skepticism remains concerning his reliability as Rossetti's biographer. The doubts must have sprung from Caine's character—he had a romantic sensibility, a flair for seeing the simplest events dramatically, and a distinct taste for self-aggrandizement. However, although contemporaneous materials indicate that he inspired a certain wariness among Rossetti’s intimates, there are no concrete reasons to doubt his veracity in matters of fact.
Effectiveness of Kemangi (Ocimum basilicum) Leaf Methanol Extract against Candida albicans Colonies

Field: Pharmacology, Toxicology and Pharmaceutics (Life Sciences)

Candida species, for women are the foremost common cause of parasitic contaminations. Candida species affect contamination in 75% of women and at slightest 6-9% of women involvement repetitive vulvovaginal candidiasis. Candida albicans (CA) accounts for 85-95% of yeast strains separated from the vagina. The treatment which has been administered for candida infections is antifungal drugs such as clotrimazole and fluconazole. When applied topically, synthetic antifungal drugs cause allergic reactions, resistance, and a burning sensation. It is necessary to conduct research on plant-based herbal medicine as an alternative treatment. Kemangi, also recognized as Ocimum Basilicum (OB), is a plant native to Indonesia which has medicinal properties. The objective of this study is to examine how effective OB methanol extract is against CA colonies. The study was performed at Brawijaya University's Microbiology Laboratory in Malang. The experimental laboratories with Posttest Only Control Group Design were employed in this study, with four repetitions of OB concentrations of 15%, 20%, 25%, 30%, and 35% against CA colonies. One-way ANOVA was utilized as the hypothesis test, with a significance level of 0.05. The results demonstrated that OB extract with a concentration of 15% was able to inhibit the growth of CA colonies. In the OB extract with a concentration of 35%, no CA colony growth was revealed. One-way ANOVA test obtained p 0.000 <0.05. Conclusion OB owns adequacy in restraining the development of CA organism with negligible murdering rate at a concentration of 35%. Research required to be performed to identify the antifungal potential of OB extract in vivo.