bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparación de rendimiento económico, biológico e índice de cosecha en trigo (Triticum aestivum L.) bajo temporal
Authors: Kuruvadi Sathyanarayanaiah , Velasco J. J. , Vázquez L.M.G. 
Published: January 2024

En esta investigación se evaluaron 17 genotipos de trigo con amplia gama de diversidad bajo condiciones de temporal, con el objetivo de comparar el rendimiento económico, biológico e Índice de cosecha entre las variedades, y estudiar las correlaciones fenotípicas entre diferentes características agronómicas con Índice de cosecha.
El análisis de varianza indicó variabilidad considerable para rendimiento económico, biológico e Índice de cosecha, y otras características estudiadas entre los genotipos. Las variedades Romana, Seri, Pavón y Junco presentaron valores altos de 24.9, 24.7, 24.3 y 24.1% de Índice de cosecha, respectivamente, y también manifestaron altos rendimientos económicos; sin embargo, estas variedades expresaron menos rendimiento biológico. Las dos líneas PM5 y PM8 produjeron valores muy bajos para Índice de cosecha y rendimiento económico, y el máximo promedio de producción de biomasa. Las variedades del grupo de alto Índice de cosecha generalmente produjeron menos biomasa que las variedades del grupo de bajo Índice de cosecha, pero manifestaron altos rendimientos. Se encontró una asociación positiva y significativa de rendimiento económico con Índice de cosecha, mientras que el rendimiento biológico se asocia negativamente en forma significativa con Índice de cosecha. La selección de genotipos basada en altos Índices de cosecha puede contribuir a obtener altos rendimientos económicos en trigo bajo temporal.
Métodos para la detección de a la detección de Xanthomonas Xanthomonas campestris pv. vesicatoria en semilla de toma en semilla de tomate (Lycopersicon esculentum Mill)
Authors: Sánchez Arizpe Abiel , Galindo Cepeda Ma. Elizabeth , Bustamante García Leticia , Salazar González Jorge Luis 
Published: January 2024

El cultivo del tomate ocupa el segundo lugar nacional desde el punto de vista de superficie sembrada y el primero por su valor de producción. A este cultivo lo afectan varios agentes patógenos, entre los que está la bacteria Xanthomonas campestris pv. Vesicatoria, considerada la más peligrosa. Al importar semilla de tomate, se corre el riesgo de introducir al país cepas más patogénicas, ya que este microorganismo se transmite por esta vía.
El objetivo de este trabajo fue determinar el mejor método para la detección de la bacteria X. c. pv. vesicatoria en semilla de tomate. Esta investigación se realizó en laboratorios e invernadero de la Universidad Autónoma Agraria Antonio Narro, donde se analizaron semillas de lotes comerciales de las variedades Hayslip, Homestead 61, Rio Grande y Winner. Se colocaron 12 gramos de semillas de cada variedad en un buffer fosfato 0.05 M, a 4ºC, durante toda una noche, y posteriormente se realizaron diluciones seriadas del filtrado de la semilla y del buffer. Se sembró 0.1 ml, de cada dilución (solución madre, 10-1, 10-2 y 10-3) para la recuperación de la bacteria en los métodos Tween B, CKTM y TBCK, bajo un arreglo bifactorial tres por cuatro, en un diseño completamente al azar con tres repeticiones. No se encontraron diferencias entre métodos en cuanto a detección de la bacteria en UFC/g, pero sí entre variedades, de las cuales las más contaminadas por esta bacteria fueron la Hayslip y la Río Grande. En lo que se refiere al tiempo de aparición de las UFC en cada uno de los métodos, el mejor fue el Tween B, que registró un promedio en la aparición de las UFC de 84 horas. Respecto a la capacidad de germinación, no se encontraron diferencias entre variedades. La identificación de las cepas se realizó mediante pruebas bioquímicas, siembra en medios diferenciales, medios semis electivos y pruebas de patogenidad; los síntomas aparecieron de 12 a 14 días después de las inoculaciones en los frutos, y el aislamiento de la bacteria correspondió nuevamente a la aislada inicialmente.
PENGEMBANGAN MEDIA PEMBELAJARAN KOMIK BERBASIS KEARIFAN LOKAL UNTUK MENINGKATKAN LITERASI LINGKUNGAN SISWA SMP
Authors: Anisa Noverita  , Eka Darliana  , Trysanti Kisria Darsih  
Published: January 2024

Tujuan penelitian ini adalah untuk mengembangkan media komik berbasis kearifan lokal dan untuk mengetahui keefektifan dan kemenarikan media pembelajaran komik berbasis kearifan lokal serta untuk mengetahui pengaruh media komik berbasis kearifan lokal dalam meningkatkan literasi lingkungan. Penelitian ini menggunakan metode penelitian dan pengembangan dengan menggunakan model ADDIE yang terdiri dari 5 tahap, yaitu: 1) Analysis (Analisis); 2) Design (Perancangan); 3) Development (Pengembangan); 4) Implementation (implementasi); dan 5) Evaluation (Penilaian). Adapun subjek pada penelitian ini adalah siswa SMP Al Maksum Langkat khususnya kelas VII. Penelitian ini meggunakan Random Sampling dan sampelnya sebanyak 28 siswa. Dari hasil validasi beberapa ahli menunjukkan hasil uji validasi ahli materi sebesar 77,5% dan masuk dalam kategori layak. Hasil validasi ahli media sebesar 85,8% dan masuk dalam kategori sangat layak.. Hasil validasi ahli bahasa sebesar 80% dan masuk kategori layak. Adapun peningkatan literasi lingkungan ditunjukkan analisis data dari pretest dan postest dari hasil uji T yang dilakukan dengan menggunakan Uji Paired Samples dengan taraf kebenaran 95% di peroleh hasil signifikansi sebesar 0,000 < 0,05 maka ada perbedaan yang signifikan hasil belajar siswa antara sebelum dan setelah menggunakan media pembelajaran komik berbasis kearifan lokal. Dengan demikian maka media pembelajaran komik berbasis kearifan lokal layak digunakan sebagai media pembelajaran pada mata Pelajaran IPS kelas VII.
Analysis Of Work Motivation And Work Stress On Employee Performance With Work Environment As A Variable Intervening At PT Hki Road Construction Pekanbaru-padang Toll Road, Section Siring Field
Authors: Satria Wibawa Wahyadyatmika  , Kiki Farida Ferine  , M. Isa Indrawan  
Published: January 2024

This study was conducted to test and analyze the effect of work motivation and work stress on employee performance through the work environment as an intervening variable. The location of the research was conducted at PT Hutama Karya Infrastructure for the Construction of the Pekanbaru-Padang Toll Road, Padang Siring Section. The number until this study was 82 respondents who were contract employees. The analysis method used is PLS analysis. The results of the direct influence test showed a positive and significant influence between work motivation on employee performance. There is a positive and significant influence between work motivation and the work environment. There is a positive and significant influence between work stress and employee performance. There is a positive and significant influence between work stress and the work environment. There is a positive but not significant influence between the work environment on employee performance. The results of the indirect influence test showed a positive but not significant influence between work motivation on employee performance through the work environment. There is a positive but not significant influence between work stress on employee performance through the work environment.
HUBUNGAN FUNGSI LUTUT TERHADAP KESIAPAN PSIKOLOGIS PADA PASIEN ANTERIOR CRUCIATE LIGAMENT DENGAN PENANGANAN NON-OPERATIF DAN POST-OPERATIF
Authors: Ni Putu Ayu Selviani  , I Putu Gde Surya Adhitya  , Gede Parta Kinandana  
Published: January 2024

Latar Belakang : Manajemen yang efektif dalam mengatasi cedera anterior cruciate ligament (ACL) memiliki dua pilihan, yaitu manajemen konservatif dan operasi rekonstruksi. Kedua pilihan ini bertujuan untuk mengembalikan fungsi lutut secara optimal tanpa risiko cedera berulang atau perubahan degeneratif pada lutut. Keberhasilan dari kedua pendekatan ini tergantung pada program pemulihan dan komitmen yang diberikan dalam melakukan latihan pemulihan. Evaluasi positif secara psikologis, penilaian subjektif, serta evaluasi objektif terhadap fungsi fisik tak jarang dipergunakan buat menilai kesiapan individu untuk kembali melakukan kegiatan fisik yang sama sebelum mengalami cedera.
Tujuan : Tujuan dari penelitian ini ialah untuk mengidentifikasi korelasi antara fungsi lutut dan kesiapan fisiologis pada pasien yang mengalami cedera ACL dan menjalani baik operasi rekonstruksi maupun penanganan konservatif.
Metode : Penelitian ini menggunakan metode tinjauan pustaka atau literatur review. Pencarian jurnal menggunakan data base melalui google scholar dan PubMed. Pencarian kata menggunakan kata kunci “injury, anterior cruciate ligament, knee functional, psychological readiness”. Jurnal yang digunakan pada penelitian ini dengan inklusi 5 tahun terakhir. Berdasarkan hasil pencarian dijumpai 5 literatur yang sesuai dengan kriteria inklusi.
Hasil : Berdasarkan hasil telaah 5 jurnal menyatakan bahwa tidak ada perbedaan yang signifikan ditemukan pada skor subjektif international knee documentation committee 2000 (IKDC 2000) dan anterior Cruciate Ligament Return to Sport After (ACL-RSI ) antara pasien dengan penanganan konservatif dan operasi rekonstruksi.
Simpulan : Tidak ditemukan perbedaan yang signifikan antara hasil Skor IKDC 2000 dan ACL-RSI pada pasien yang mendapatkan penanganan konservatif dan operasi rekonstruksi.
Kata Kunci : ACL, cedera lutut, kesiapan fisiologis.
The lichen genus Physcia and allied genera in Greenland
Authors: Moberg Roland , Hansen Eric Steen 
Published: January 2024

Seven species of Physcia, six of Phaeophyscia and four of Physconia are reported from Greenland. Four taxa, Phaeophyscia kairamoi, P. nigricans, Physcia adscendens and Physconia enteroxantha are reported as new to the area.
Morphology, chemistry, distribution, habitat and ecology are discussed and a key to species is presented.
Distribution maps of all species are presented.
Altitudinal and within-crown distribution of insect grazing on Mountain birch (Betula pubescens coll.) in SW Greenland and NW Norway
Authors: Tenow Olle 
Published: January 2024

The distribution of grazing on birch leaves over different altitudes and levels above the ground was studied on valley slopes at three Greenland localities with different degree of oceanity, and compared with three Norwegian localities previously studied.
In the Greenland valleys, grazing was concentrated to the lower half of the slopes and to the near-ground foliage, except at the most continental locality where it extended up into the crowns of the tree-sized birches. In the Norwegian valleys, grazing comprised most of the forest-clad slope and the whole crown of the birch trees. In Norway, the grazing insects were Epirrita autumnata and Operophthera brumata (Lep., Geometridae), their larvae being in outbreak numbers, in Greenland the larvae had left the foliage and therefore remained unidentified. They were in non-outbreak numbers. The importance of these differences for the results is discussed, as well as the effect of climate on grazing and the effect of grazing on growth of birches.
The species composition of the Peracarid fauna (Crustacea, Malacostraca) of the Northeast Water Polynya (Greenland)
Authors: Brandt Angelika , Vassilenko Stella , Piepenburg Dieter , Thurston Michael 
Published: January 2024

The species composition of Crustacea, Peracarida was investigated over a period of almost three months in the Northeast Water Polynya (NEW) off Greenland. Samples were collected in May - July 1993 during the Polarstern expedition ARK IX/2-3 using an epibenthic sledge. Within the macrobenthos on the shelf, peracarids were an important component, besides polychaetes, molluscs and brittle stars. At 22 stations in depths from 45-517 m, about 38 000 specimens were identified and have been listed.
In total, 229 species belonging to 51 families, and 121 genera were found. Seven species assemblages were characterized: the "deep assemblage", the "shallow assemblage", the "Westwind Trough assemblage", the "Norske Trough assemblage", the "common species assemblage", the "high-accumulation area assemblage", and the "ice-associate assemblage". Differences in abundance and composition do not primarily reflect bathymetric gradients, but more the availability of food (phytoplankton, more importantly ice algae incorporation into the sediment) and therefore the temporal and spatial opening of the polynya. It is suggested that primary production, hydrography, and ice conditions (lateral advection due to the anticyclonic gyre around Belgica Bank, and upwelling at a southern fast-ice extension) are the main factors influencing the peracarid crustacean community.
Taxonomy, ecology and distribution of Hygrocybe (Fr.) P. Kumm. and Camarophyllopsis Herink (Fungi, Basidiomycota, Hygrocybeae) in Greenland,
Authors: Borgen Thorbjørn , Arnolds Eef 
Published: January 2024

This revision is based on critical macroscopic and microscopic studies of about 450 Greenlandic collections of the tribus Hygrocybeae, in Greenland represented by the genera Camarophyllopsis and Hygrocybe (s.l.). The collections are assigned to 29 taxa.
Hygrocybe rubrolamellata and H. conica var. aurantiolutea are described as new. H. coccinea (Schaeff.: Fr.) P. Kumm., H. marchii (Bres.) F.H. Møller and H. coccineocrenata (P.D. Orton) M.M. Moser are excluded from the Greenlandic basidiomycota. The concepts of H. salicis-herbaceae Kühner, H. biminiata Kühner, H. occineocrenata (P.D. Orton) M.M. Moser, H. rhodophylla Kühner, H. substrangulata (P.D. Orton) P.D. Orton & Watling and H. turunda (Fr.: Fr.) P. Karst. are revised.
The phenology, ecology and distribution patterns of all species are discussed. The grassland slopes in S Greenland and the oceanic dwarf-shrub heaths and fens in S and SW Greenland are two centres of distribution. The species composition of tribus Hygrocybeae in Greenland shows much affinity to that of the Alps and NW Europe.
Structure and function of the pelagic ecosystem in Young Sound, NE Greenland
Authors: Nielsen Torkel G. , Ottosen Lars D. , Hansen Benni W. 
Published: January 2024

An annual carbon budget of the pelagic food web is constructed for a 36 m deep station in Young Sound. Data were collected during a 2-week mid-summer sea-ice covered period in 1999, during the open-water period of 1996, 2003, 2004, 2005 and during winters of 1997 and 2003. The measurements revealed that during sea-ice cover the water column of outer Young Sound was strongly heterotrophic and sustained by organic material advected into the fjord from the open sea. The pelagic community thus originated from the marginal ice zone at the entrance to the fjord. No succession was observed in the plankton community during this period, and the grazing pressure of the dominating zooplankton groups (ciliates, heterotrophic dinoflagellates, meroplankton and copepods) was 10 times higher than primary production, while the bacterial carbon demand was three times higher than primary production.
During the open-water period, the grazing community was completely dominated by copepods, which were capable of grazing down the entire primary production. This contrasts with several other investigated Arctic marine pelagic ecosystems further south, where the protozooplankton community is quantitatively more important than copepods. In Young Sound, both zooplankton groups are present simultaneously, and copepods thus act both as competitors for food and as predators in relation to the protozooplankton. On an annual basis, the carbon budget was unbalanced; the total carbon need of the grazers equaled primary production, leaving no room for the estimated bacterial carbon demand, which was of the same size as the carbon demand of the grazers. Thus, Young Sound is a net heterotrophic system relying on import of organic material from the open sea or possibly from land.
The expression and clinical significance of serine hydroxymethyltransferase2 in gastric cancer
Authors: Shan Yiming , Liu Dongdong , Li Yingze , Wu Chu , Ye Yanwei 
Published: January 2024

Background
Gastric cancer (GC) is one of the most common malignant tumours in the digestive system. Serine hydroxymethyltransferase 2 (SHMT2) is one of the key enzymes associated with serine metabolism. However, the prognostic role of SHMT2 in GC carcinogenesis has yet to be studied.

Methods
The expression of SHMT2 in human tumors and normal tissues was detected by the Assistant for Clinical Bioinformatics and Immunohistochemistry (IHC). The relationship of the expression of SHMT2 with clinical characteristics and survival data was analysed by the chi-square test, survival analysis and online databases. Finally, the correlation between SHMT2 expression and associated signalling channels, and molecules was analysed by online databases.

Results
SHMT2 was strongly expressed in numerous human cancers. The expression rate of SHMT2 was 56.44% in GC (P = 0.018). The survival analysis indicated that patients with high expression of SHMT2 had the worse overall survival (OS; log-rank P = 0.007). The expression of SHMT2 was correlated with tumour size (P = 0.034) and, TNM stage (P = 0.042). In particular, SHMT2, vessel invasion and M stage were independent factors for OS in GC (P = 0.044, P < 0.001, P < 0.001). The SHMT2 gene was substantially correlated with cell signalling pathways.

Conclusions
SHMT2 is highly expressed in GC and is associated with a poor prognosis. The exploration of its mechanism may be related to tumour proliferation, DNA repair and replication. SHMT2 is an independent prognostic risk factor and a potential biomarker for the diagnosis and treatment of GC.
Teacher Attitudes and Perceptions of Inclusive Education: A Case of Ghana
Authors: Chitiyo Jonathan , Brobbey Gordon , Asare Kwame Bediako 
Published: January 2024

Abstract
The purpose of this study is to examine the knowledge and perceptions of 145 teachers from three regions in Ghana regarding inclusive education. The results show that the teachers have moderate knowledge of inclusive education practices and processes. Additionally, slight moderate positive relationships were found between participants’ level of training in inclusive education and their knowledge of inclusive education. From the findings, we argue for stakeholders in teacher education to, as a matter of necessity, reconsider the curriculum and practicum for preparing special and general educators to focus on inclusive practices to effectively prepare pre-service teachers to succeed in inclusive settings. There is also a school leadership imperative, in view of site-specific challenges and needs, to influence school-based strategies to advance inclusionary practices. Successes of such initiatives could be replicated in other schools to advance inclusive education in Ghana. Implications of the study for teacher professional development and inclusive education practice in pre-tertiary educational institutions are underscored.
Food trade balances and unit values: What can they reveal about price competition?
Authors: Gehlhar Mark J. , Pick Daniel H. 
Published: August 2002

AbstractPrice competition is a fundamental assumption in modeling trade. Empirical applications often use unit values as proxies for price. This is a problem if unit values cannot explain trade flows consistent with the price competition assumption. The paper determines whether this condition exists in food product trade. Trade balances by product are used to indicate successful competition in trade. Export and import unit values are used to determine if competition is dominated by price or nonprice competition. Trade flows are then categorized in four ways: successful price competition, unsuccessful price competition, successful nonprice competition, and unsuccessful nonprice competition. This categorization is applied to 372 food products using the Standard International Trade Classification. Nearly 40% of U.S. food exports could be characterized as dominated by nonprice competition. In those instances, we contend that unit values are not valid proxies for price, thereby limiting their usefulness in traditional import demand estimation and trade policy simulation models. © 2002 Wiley Periodicals, Inc.
Optimization of folic acid, vitamin B12, and vitamin B6 supplements in pediatric patients with sickle cell disease
Authors: van der Dijs Fey P.L. , Fokkema M. Rebecca , Dijck‐Brouwer D.A. Janneke , Niessink Bram , van der Wal Thaliet I.C. , Schnog John‐John B. , Duits Ashley J. , Muskiet Fred D. , Muskiet Frits A.J. 
Published: August 2002

AbstractUsing homocysteine as a functional marker, we determined optimal folic acid, vitamin B12, and vitamin B6 dosages in 21 pediatric sickle cell disease (SCD) patients (11 HbSS, 10 HbSC; 7–16 years). Daily supplements of folic acid (400, 700, or 1,000 μg), vitamin B12 (1, 3, or 5 U.S. 1989 RDA), and vitamin B6 (1 or 3 U.S. 1989 RDA) were gradually increased in an 82‐week dose‐escalation study. Blood was taken at 9 occasions for measurements of erythrocyte (RBC) and serum folate, plasma vitamin B12, whole‐blood vitamin B6, and plasma homocysteine. Augmentation of folic acid from 700 to 1,000 μg and vitamin B12 from 3 to 5 RDA did not further decrease homocysteine. Percentages of patients exhibiting significant individual homocysteine decreases amounted to 43% (folic acid from 0 to 400 μg, vitamins B12 and B6 from 0 to 1 RDA), 14% (folic acid from 400 to 700 μg), 24% (vitamin B12 from 1 to 3 RDA), and 18% (vitamin B6 from 1 to 3 RDA ). The lowest plasma homocysteine at 82 weeks was 5.9 ± 2.2 μmol/L. Patients with HbSS had higher RBC folate than HbSC. The entire group exhibited an inverse relation between RBC folate and hemoglobin. We conclude that RBC folate is less valuable for folate status assessment in SCD patients. Optimal dosages are as follows: 700 μg folic acid (3.5–7 U.S. 1989 RDA), 3 U.S. 1989 RDA vitamin B12 (4.2–6.0 μg), and 3 U.S. 1989 RDA vitamin B6 (4.2–6.0 mg). A practical daily combination is 1 mg folic acid (4.3–8.5 U.S. 1998 RDA when taken with meals), 6 μg vitamin B12 (2.5–5 U.S. 1998 RDA), and 6 mg vitamin B6 (4.6–10 U.S. 1998 RDA). This combination may by simple and relatively inexpensive means reduce these patients' inherently high risk of endothelial damage. Am. J. Hematol. 69:239–246, 2002. © 2002 Wiley‐Liss, Inc.
all‐trans‐Retinoic acid‐induced expression and regulation of retinoic acid 4‐hydroxylase (CYP26) in human promyelocytic leukemia
Authors: Ozpolat Bulent , Mehta Kapil , Tari Ana M. , Lopez‐Berestein Gabriel 
Published: August 2002

Abstractall‐trans‐Retinoic acid (ATRA) induces complete remission in majority of patients with acute promyelocytic leukemia (APL). However, accelerated metabolism of ATRA that is induced by chronic daily administration of oral ATRA has been implicated as one of the mechanisms leading to a reduced sensitivity or resistance to ATRA therapy. We investigated the expression and regulation of CYP26, a novel p450 enzyme, which is highly specific for ATRA, in promyelocytic leukemia cells (NB4 and HL‐60). We found that treatment of NB4 cells with a pharmacological concentration of ATRA (1 μM) induced rapid and dose‐dependent expression of CYP26 mRNA. The CYP26 expression returned to pretreatment levels in both cells after ATRA was removed from the media. Retinoic acid receptor‐alpha (RARα) specific antagonist (CD2503) totally abolished the ATRA‐induced expression of CYP26 mRNA in HL‐60 and NB4 cells. Furthermore, HL‐60R, a HL‐60 subclone expressing nonfunctional RAR because of a point mutation in the ligand‐binding domain of RARα, failed to show CYP26 mRNA expression in response to ATRA. ATRA‐induced expression of CYP26 was restored in HL‐60R cells retrovirally transduced with RARα, but not in those cells transduced with the other retinoid receptors. In conclusion, ATRA induces expression of CYP26 in myeloid and promyelocytic leukemia cells and this expression is modulated by RARα. The induction of CYP26 expression by ATRA treatment might be related to a substrate‐driven feedback mechanism to regulate intracellular concentrations of ATRA and its over expression in some clones may be partly responsible for reduced sensitivity or resistance to ATRA therapy. Am. J. Hematol. 70:39–47, 2002. © 2002 Wiley‐Liss, Inc.