bluuebunny/crossref_metadata_2025_split huggingface dataset:
Relationship between serum vitamin D levels in diabetic patients with and without diabetic retinopathy
Authors: Najmi Mohammad Abubakar , Zaka-ur-Rab Simi , Arrin Shazia , Ali Asif 
Published: September 2022

Aim: To study the relationship between serum Vitamin D levels and severity of Diabetic Retinopathy. Materials and Methods: This cross-sectional study was conducted on 346 subjects. The cases were divided into three groups, group A comprised of 180 type 2 diabetic patients with retinopathy, group B comprised of 86 type 2 diabetic patients without retinopathy (no DR) and group C comprised of age and gender matched 80 healthy non diabetic controls. Group A further divided into group A1 consisting 84 proliferative diabetic retinopathy (PDR) patients and group A2 consisting of 96 non proliferative diabetic retinopathy patients (NPDR). Results: The difference in the levels of serum Vitamin D between group A1 and group B and group A1 and group C were statistically significant with p value and Confidence Interval (CI) being (<0.001, -10.35 to -4.66) and (<0.001, -11.45 to -5.54) respectively. There was statistically significant negative correlation between HbA1c and serum Vitamin D in diabetic patients with PDR (r=-0.464, p=0.002), diabetic patients with NPDR (r=-0.399, p=0.005) and diabetic patients with no DR(r=-0.397, p=0.011). Conclusions: Serum vitamin D level decreases significantly with increasing severity of Diabetic Retinopathy and increasing levels of HbA1c.
A biomass waste evaluation for power energy generation in Mexico based on a SWOT & Fuzzy-logic analysis
Authors: Hernandez-Escalante Mariana , Martin-del-Campo Cecilia 
Published: September 2022

Power energy generation in Mexico based on bioenergy is currently insignificant. However, the potential for taking advantage of biomass resources in the country is considerable. This article aims to evaluate the use of biomass waste for the Mexican energy transition in the near future. The methodology starts by identifying sites with biomass waste and establishing the conversion processes needed to produce electricity for each type of biomass. A SWOT analysis was implemented to define the criteria for evaluating all options on the same basis. The opinion of experts in energy systems was collected to assign the priority to each criterion. A fuzzy-logic inference system was formulated to assess the options based on the quality of their attributes. The output obtained from the fuzzy analysis is a sustainability prioritisation of all options. We analysed a case study for the Baja California Sur (BCS) region, and the results show the prioritisation ranking of 24 alternatives regarding the sustainable use of bioenergy in the region and we made a proposal of an indicative plan to introduce bioenergy in the region from now until 2032. If the indicative plan were implemented, 61% of the power demand of BCS could be covered with bioenergy by 2032.
The Effect of COVID-19 on Elective Total Knee Arthroplasty Utilization, Patient Comorbidity Burden, and Complications in the United States: A Nationwide Analysis
Authors: Gordon Adam M. , Magruder Matthew L. , Conway Charles A. , Sheth Bhavya K. , Erez Orry 
Published: September 2022

Introduction:
Total knee arthroplasty (TKA) is one of the highest volume elective procedures done nationwide. Elective surgery was suspended because of the COVID-19 pandemic. The utilization trends, comparison of patient demographics, and postoperative outcomes in 2020 have yet to be evaluated substantially. We compared temporal trends in procedural volume, patient demographics, and postoperative complications of elective TKA in 2019 and 2020.

Methods:
Using a multicenter, nationwide representative sample, a retrospective query of the 2019 to 2020 American College of Surgeon's National Surgery Quality Improvement Program database was conducted for patients undergoing elective TKA. Temporal trends in utilization, demographics, and length of stay were compared pre-COVID-19 (2019 to 2020Q1) with post-COVID-19 (2020Q2 to Q4). Postoperative outcomes were compared by calendar year (2019 versus 2020). Linear regression was used to evaluate changes in procedural volume over time. A significance threshold of P < 0.05 was used.

Results:
A total of 121,415 patients underwent elective TKA in 2019 (N = 72,002) and 2020 (N = 49,413), a 31.4% decline. The proportion of hospital-defined “outpatient” TKAs in 2020 was significantly greater than that in 2019 (41.5% versus 25.5%; P < 0.001). Elective TKA utilization declined by 65.1% in 2020Q2 and never returned to prepandemic baseline in 2020Q3 to Q4. The average length of stay was shorter in 2020 (1.56 versus 1.87 days; P < 0.001). The proportion of same-day discharge increased each quarter from 2019Q1 to Q4 (6.2% to 8.6%) to 2020Q1 to Q4 (8.7% to 17.1%). Total complication rates were similar in 2019 (4.84%) versus 2020 (4.75%); P = 0.430. The 30-day mortality (0.08% versus 0.07%; P = 0.858), revision surgery (1.0% versus 1.0%;P = 0.940), and readmission (2.8% versus 2.6%; P = 0.053) rates were no different between 2019 and 2020.

Conclusion:
Elective TKA declined during the second quarter of 2020. A large proportion of surgeries were transitioned to outpatient with rates of same-day discharge increasing over the study period, despite no change in complication, mortality, and readmission rates. Patient outcomes were not compromised despite pandemic restrictions for elective surgery.

Level of Evidence:
Level III
Activity Measure for Post-acute Care Mobility Scoring System: Comparison of Nursing and Physical Therapy Evaluation for Primary Hip and Knee Arthroplasty Patients
Authors: Sutton Ryan , Goh Graham , D'Amore Taylor , Clark Sean , Meghpara Michael , Purtill James 
Published: September 2022

Background:
Optimizing resource utilization after total joint arthroplasty (TJA) has become increasingly vital. The Activity Measure for Post-acute Care (AM-PAC) “6-clicks” scoring system is a validated, physical therapist (PT)-administered metric of patient basic mobility and predicts discharge disposition. This study aimed to determine whether the use of AM-PAC scoring by nurses in the postoperative period could (1) substitute for AM-PAC scoring by therapists and (2) predict 90-day outcomes in TJA patients.

Methods:
We retrospectively reviewed all primary TJAs conducted by two surgeons at a single institution from 2019 to 2021. Patients underwent postoperative AM-PAC evaluation by nursing and physical therapy within 24 hours of surgery, and specific timing of nursing and PT scores was determined. Inter-rater reliability between therapy and nursing scores was analyzed. Multiple regression was used to determine the association between AM-PAC scores and readmissions, complications, length of stay, and nonhome discharge.

Results:
In total, 1,119 patients were included. Agreement testing between therapy and nursing scores was weak for all six AM-PAC components, with a Spearman correlation of 0.437. Nursing scores were typically conducted earlier than therapist scores (204.0 ± 249.9 minutes versus 523.5 ± 449.4 minutes; P < 0.001). Therapy and nursing scores were not notable predictors for 90-day complications or readmissions. However, higher therapy and nursing scores were predictors of less than 2-day hospitalization (odds ratio [OR] 0.63, P < 0.001; OR 0.88, P < 0.001) and fewer nonhome discharges (OR 0.62, P < 0.001; OR 0.84, P < 0.001).

Conclusion:
Although nursing-driven mobility assessments could potentially improve efficiency of patient discharge and control costs, nursing AM-PAC scoring did not serve as an appropriate substitute for PT scoring in patients undergoing primary total hip and knee arthroplasty at our institution.
Notes on some Jurassic plants from the Rajmahak Hills, Bihar, India
Authors: Gupta K.M. 
Published: September 2022

A few interesting plant impressions are described out of an old collection made by the author and his friends in 1934 from the Rajmahal Hills. It includes two new species of Rhizomopteris (R. Sahnii and R. rajmahalense). one new species of Cladophlebis (C. Srivastavai), one new species of Cycadeospermum (C. indicum), one new species of Conijerocaulon (C. rajmahalense), and one new species of Cycadolepis (C. indica).
Besides an impression of a Williamsonia flower some cycadean seeds and stems have been figured. All the fossils are characteristic of the Rajmahal flora.
Coniferocaulon latisulcatum sp. nov. from the Rajmahal hills, Bihar, with remarks on the affinities of the genus
Authors: Sah S.C.D. 
Published: September 2022

A new species of a petrified wood referable from its external characters to Coniferocaulon Fliche is described. This genus has previously heen recorded from the Rajmahal Hills in the form of casts, but the anatomical details are given here for the first time. On the basis of these the affinities of the genus have been discussed.
Coniferocaulon lalisulcatum is closely comparable to some species of Mesembrioxylon Seward in having a narrow pith with scattered stone cells; uniseriate, low medullary rays; scattered xylem parenchyma; radial pits usually arranged in a single row, separate or contiguous, and circular, but sometimes flattened, rarely biseriate, opposite or sub-opposite; and in having pits with oblique pores in the cross-field. The wood is also closely comparable to that of Podocarpus ferruginoides Compt.
The characters of this species of Coniferocaulon are, as a whole, more suggestive of a Podocarpinean affinity rather than Araucarian.
Studies on the fossil flora of Nipania, Rajmahal Series, India - Pteridophyta, and general observation on Nipania fossil flora
Authors: Vishnu-Mittre  
Published: September 2022

The paper describes several silicified pteridophytic remains, Lycoxylon indicum (SRIVASTAVA) emend., L. Type 2, Sphenopteris sp., Cladophlebis sahnii sp. nov., 5 types of petioles and rachises, 3 types of sori, 3 types of isolated sporangia, 2 new species of Solenostelopteris Kershaw (S. nipanica sp. nov. and S. sahnii sp. nov.), 3 new species of Dictyostelopteris gen. nov. (D. rajmahalense sp. nov., D. fasciosteloides sp. nov. and D. jacobi sp. nov.) and Tinpaharia sinuosa Jacob.
In general composition the fossil flora of Nipania seems to compare with the fossil flora of Jabalpur and the Kota Stages of the Upper Gondwana and is, therefore, believed to belong to the uppermost strata in the Rajmahal Stage.
Studies in the Talchir flora of India - 1. Sporae dispersae from the Talchir beds of South Rewa Gondwana basin
Authors: Potonie R. , Lele K.M. 
Published: September 2022

Sporae dispersae from the Talchir shales at Goraia in the South Rewa Gondwana basin have been described. The spores are assigned to 13 genera. Two species, viz. Potonieisporites neglectus and Lunatisporites goraiensis, are new. The genus Quadrisporites of Hennelly (1958) is emended.
The spores are placed in organ and form genera and species according to the International Code of Palaeobotanical Nomenclature. The organ and form genera are then placed in a morphographic system because most of them cannot still be assigned to the morphological system of plant families.
The miospore genera in the coals of Raniganj stage (Upper Permian), India
Authors: Bharadwaj D.C. 
Published: September 2022

43 miospore genera have been referred to in this treatise, out of which 15 genera are new to science. These have been diagnosed, described and compared with morphographically comparable other spore genera. The following genera are new - Eupunctisporites gen. nov., Micrpbaculispora gen. nov., Microfovealatispora gen. nov., Indospora gen. nov., Gondisporites gen. nov., Densipollenites gen. nov., Striomonosaccites gen. nov., Distriomonosaccites gen. nov., Verticipollenites gen. nov., Lahirites gen. nov., Hindipollenites gen. nov., Faunipollenites gen. nov., Striapollenites gen. nov., Distriatites gen. nov., and Tumoripollenites gen. nov. Besides these Striatites, Lunatisporites, Striatopodocarpites and Sulcatisporites have been emended. Some supra-generic taxa have also been created such as Siriasacciti, and Rectistriati.
From this study some new morphographic features have come to light, e.g. the presence of +- triradiate muri on distal face of a triangular trilete spore; sculptured and zonate saccus-like body in a trilete spore, the occurrence of striated central budies in monosaccate forms: the proximal surface of central bodies in disaccate grains bearing horizontal striations also crossed with vertical, connecting striations in many forms; occurrence of only vertical striations on the proximal side of central body in some saccate grains; occurrence of striations on the proximal as well as distal faces of the central body (1) in the same direction or (2) at right angles to one another in saccate grains. It has also been discovered that the proximal exine of central body in saccate grains may be smooth or microverrucose with indistinct, intrapunetate or intramicroreticulate structure. Bisaceate grains comparable to some modern members of Podocarpaceae are richly represented and non-saccate pollen grain morphographically similar to those of some living species of Ephedra and Welwitschia are also present in the horizon.
Remarques Sur Les Niveaux a Tasmanacees du Paleozoique Saharien
Authors: Combaz A. 
Published: September 2022

Among the "Acritarcha" belonging to the family of Sphaeromorphitae Downie, Evitt, Sarjeant, the genera Tasmanites Newton and Leiosphaeridia Eisenack are observed in the whole Saharian Paleozoic. However, their occurrence, which is rather inconspicuous in the bulk of the microplancton of these series, may become prevailing at certain particular levels where they constitute up to the 95 per cent of the microscopic population.
These levels, moreover, show the interesting particularity of being rich in sub-colloidal organic matter, and of having a strong radioactivity (radioactive markers).
The main radioactive levels with Tasmanaceae (SOMMER,1956) have been chiefly observed at the base of the argillaceous Gothlandian and at the base of the Frasnian. They thus mark the beginning of these two transgressions.
The interest of these Tasmanaceae "palynofacies" is therefore real both from the ecologic and paleogeographic points of view. As well from the stratigraphic point of view, as long as these forms are accompanied by good ronostratigraphic markers, as these Tasmanaceae are so little evolving that may be found unchanged from Cambrian to Mesozoic and perhaps up to the Recent.
However, a more thorough observation shows a morphologic evolution which leads in a minority of individuals to diversely ornamented forms or even to conspicuously modified structural states.
Concerning the systematic position of these microfossils Wall supplies some demonstration which however is not universally accepted. We think nevertheless that an algal nature for these microplancton is an appealing hypothesis.
Mesozoic operculate pollen and their morphology
Authors: Venkatachala B.S. 
Published: September 2022

Operculate pollen referable to the subturma Operculati Venkatachala and Goczan, are common in the Mesozoic sediments. The genera included under this group are Classopollis (Pflug) Pocock and Jansonius, 1961; Gliscopollis gen. nov. [=Corollina MALJAWKINA, 1949 and Circulina (Maljawkina) KLAUS, 1960] and Granuloperculatipollis Venkatachala and Goczan, 1963. All the three genera are monoporate often with a distinct distal operculum and possessing a faintly discernible to distinct proximal trilete mark.
Two main trends of specialization could be visualized in the group: (i) disappearance of the trilete mark and (ii) prominence and delimitation of the ring tenuitas bordering the operculum.
Pollen belonging to this group are known to occur among the conifers referable to Cheirolepidaceae.
Interglacial vegetational succession and lake development in Denmark
Authors: Andersen Svend Th. 
Published: September 2022

Deposits from three interglacial stages are now known in Denmark. The Eemian Interglacial is the youngest one and is known from marine as well as numerous fresh-water deposits. The Holsteinian Interglacial has been studied only in a marine deposit, whilst a still older interglacial is known from the fresh-water deposits of Harreskov, Olgod and Starup.
The author has studied the forest succession of the Eemian in the lake deposits at Herning and Hollerup. 7 interglacial pollen zones are recognized. Light requiring plants were frequent in the early and the late stages of the succession, and acidophilous plants increase their frequencies in its later part. The lakes reflect a parallel development from basic to acid conditions, or from calcareous to non-calcareous deposition.
The interglacial vegetational succession represented in the deposits at Harreskov and 0lgod is divided into 6 pollen zones. It differs essentially from the Eemian succession. Nevertheless, the general features of the successions are very similar, and the lake development is parallel too.
The interglacial vegetational successions thus fall into a protocratic, a mesocratic and an oligocratic stage, the last stage being conditioned by soil evolution rather than by climatic change.
Studies of postglacial vegetational history from the Kashmir valley - 1. Haigam lake
Authors: Vishnu-Mittre  , Sharma B.D. 
Published: September 2022

The Postglacial vegetational sequence revealed by the pollen diagrams constructed from the Haigam Lake, about 1,300 metres a.s.l., in the Kashmir Valley proper is divisible into eight vegetational stages.
The vegetational history begins with Ash-elmalder-oak-wood phase and is followed by a conifer-mixed wood phase. With the amelioration of climate, a broad-leaved-conifer mixed forest is established.
Probably in response to the worsening of climate or under the dual influence of climate and the biotic factor the oak-mixed wood declines and the pine woods are re-established.
Evidences of the origin and the progressive development of agriculture during the Postglacial period are very convincingly brought out by the pollen diagrams. The earliest forest clearances took place in the conifer-mixed woods. The paper also discusses the correspondence between the progressive development of agricultural activity and the historical and archaeological evidences obtained in the valley.
The pollen diagrams also present an interesting record of the occurrence of oaks, alder and elm in the valley proper which are absent from the valley today.
Late-Wisconsinan chronology and history of vegetation in the Ogilvie Mountains Yukon Territory
Authors: Terasmae J. , Hughes O.L. 
Published: September 2022

Studies of Pleistocene geology and history in the western Ogilvie Mountains, bordering on the east of the unglaciated region in Yukon, were made by Hughes who has recognized three major glacial episodes characterized by successive advances and retreats of valley glaciers originating in cirques along the axis of the southern Ogilvie Ranges. Palynological studies and radiocarbon dating have been used to support and confirm the chronology of complex moraine sequence. The youngest of these glacial episodes is believed to have culminated prior to 10,000-12,900 years ago.
The history of late Wisconsinan vegetation in this area, as inferred from palynological and palaeobotanical studies, holds special interest because of the postulated survival of plants in the adjacent unglaciated area which provided a potential late glacial dispersal centre in addition to migrations reaching the area later from the southeast and south. It seems that birch, alder, willow and spruce were among the early. pioneers from the western source. A mixing of the western and eastern floral elements after deglaciation is an interesting problem. The magnitude of the postglacial climatic changes appears to have been smaller than in the more southerly regions. At several sites studied, the onset of the permafrost regime has been an important factor in the development of vegetation, because of its influence on both the groundwater conditions and soil development.
The Genus Dicroidium from the Triassic of Nidpur, Madhya Pradesh, India
Authors: Bose M.N. , Srivastava S.C. 
Published: September 2022

Three new species of Dicroidium are desc1'ibed here from the Triassic of Nidpur, Sidhi District, Madhya Pradesh. Externally these three species are very similar to each other except that in D. nidpurensis and D. papillosum the venation is odontopteroid type, whereas, in D. gopadensis it is alethopteroid type. In the cuticular structure these species differ from each other main Iv in the presence or absence of papillae. In D. nidpurensis cell surface is smooth but in D. papillosum and D. gopadensis surface wall is usually papillate. In D. papillosum, subsidiary cells may be unspecialized or papillate, whereas, in D. gopadensis they are usually papillate.
“alegre colmena” (Menéndez Pelayo y las “cosas de España” en el hispanismo europeo finisecular)
Authors: Ferri Coll José María 
Published: September 2022

El artículo se centra en el interés que tenía Menéndez Pelayo por difundir la historia de la literatura española. Para el estudioso, se debía englobar no solo las manifestaciones escritas en castellano, sino también cualquier producción que radicara en el “ingenio español”. Menéndez Pelayo trató de fortalecer las relaciones con otros europeos, como ocurrió con Farinelli, quien se convirtió en divulgador de la obra del santanderino en Italia y otros países. Se concluye, por tanto, que Menéndez Pelayo contribuyó eficazmente a la europeización de los estudios de hispanística.
María Isabel Jiménez Morales y Amparo Quiles Faz (eds.). “Fiestas andaluzas. Antología de textos costumbristas”. Renacimiento: Sevilla, 2008, 370 pp.
Authors: Rodríguez Gutiérrez Borja 
Published: September 2022

El libro reseñado es una antología de un género literario específico: el costumbrismo. En concreto, se centra en los libros costumbristas de la Andalucía del siglo XIX, con el objetivo de perfilar la sociedad y cultura de dicha comunidad en ese momento. El volumen se integra de una vasta documentación hemerográfica: libros, revistas, folletos, etc. Además de la contextualización precisa del género en Andalucía, se remarcan las características del costumbrismo, que, además, fue para muchos escritores el género con que comenzaron su oficio, ya que se basa en describir la realidad más próxima, con sus tradiciones y costumbres. En la introducción, las editoras explican la definición de costumbrismo, la elaboración de su antología, el orden establecido de los textos y la presentación de los veinticuatro autores que mencionan. Todo el libro muestra una pormenorizada búsqueda de información y una claridad excelente en las explicaciones, además de aportar grandes datos al costumbrismo español.