File size: 46,117 Bytes
f540bdf
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
---
tags:
- sentence-transformers
- sentence-similarity
- feature-extraction
- dense
- generated_from_trainer
- dataset_size:95253
- loss:MultipleNegativesRankingLoss
base_model: thenlper/gte-base
widget:
- source_sentence: Molecular phylogenetic resolution of the mega-diverse clade Apoditrysia
  sentences:
  - In a previous study of higher-level arthropod phylogeny, analyses of nucleotide
    sequences from 62 protein-coding nuclear genes for 80 panarthopod species yielded
    significantly higher bootstrap support for selected nodes than did amino acids.
    This study investigates the cause of that discrepancy. The hypothesis is tested
    that failure to distinguish the serine residues encoded by two disjunct clusters
    of codons (TCN, AGY) in amino acid analyses leads to this discrepancy. In one
    test, the two clusters of serine codons (Ser1, Ser2) are conceptually translated
    as separate amino acids. Analysis of the resulting 21-amino-acid data matrix shows
    striking increases in bootstrap support, in some cases matching that in nucleotide
    analyses. In a second approach, nucleotide and 20-amino-acid data sets are artificially
    altered through targeted deletions, modifications, and replacements, revealing
    the pivotal contributions of distinct Ser1 and Ser2 codons. We confirm that previous
    methods of coding nonsynonymous nucleotide change are robust and computationally
    efficient by introducing two new degeneracy coding methods. We demonstrate for
    degeneracy coding that neither compositional heterogeneity at the level of nucleotides
    nor codon usage bias between Ser1 and Ser2 clusters of codons (or their separately
    coded amino acids) is a major source of non-phylogenetic signal. The incongruity
    in support between amino-acid and nucleotide analyses of the forementioned arthropod
    data set is resolved by showing that "standard" 20-amino-acid analyses yield lower
    node support specifically when serine provides crucial signal. Separate coding
    of Ser1 and Ser2 residues yields support commensurate with that found by degenerated
    nucleotides, without introducing phylogenetic artifacts. While exclusion of all
    serine data leads to reduced support for serine-sensitive nodes, these nodes are
    still recovered in the ML topology, indicating that the enhanced signal from Ser1
    and Ser2 is not qualitatively different from that of the other amino acids.
  - 'Recent molecular phylogenetic studies of the insect order Lepidoptera have robustly
    resolved family-level divergences within most superfamilies, and most divergences
    among the relatively species-poor early-arising superfamilies. In sharp contrast,
    relationships among the superfamilies of more advanced moths and butterflies that
    comprise the mega-diverse clade Apoditrysia (ca. 145,000 spp.) remain mostly poorly
    supported. This uncertainty, in turn, limits our ability to discern the origins,
    ages and evolutionary consequences of traits hypothesized to promote the spectacular
    diversification of Apoditrysia. Low support along the apoditrysian "backbone"
    probably reflects rapid diversification. If so, it may be feasible to strengthen
    resolution by radically increasing the gene sample, but case studies have been
    few. We explored the potential of next-generation sequencing to conclusively resolve
    apoditrysian relationships. We used transcriptome RNA-Seq to generate 1579 putatively
    orthologous gene sequences across a broad sample of 40 apoditrysians plus four
    outgroups, to which we added two taxa from previously published data. Phylogenetic
    analysis of a 46-taxon, 741-gene matrix, resulting from a strict filter that eliminated
    ortholog groups containing any apparent paralogs, yielded dramatic overall increase
    in bootstrap support for deeper nodes within Apoditrysia as compared to results
    from previous and concurrent 19-gene analyses. High support was restricted mainly
    to the huge subclade Obtectomera broadly defined, in which 11 of 12 nodes subtending
    multiple superfamilies had bootstrap support of 100%. The strongly supported nodes
    showed little conflict with groupings from previous studies, and were little affected
    by changes in taxon sampling, suggesting that they reflect true signal rather
    than artifacts of massive gene sampling. In contrast, strong support was seen
    at only 2 of 11 deeper nodes among the "lower", non-obtectomeran apoditrysians.
    These represent a much harder phylogenetic problem, for which one path to resolution
    might include further increase in gene sampling, together with improved orthology
    assignments. '
  - 'One of the major challenges in cell implantation therapies is to promote integration
    of the microcirculation between the implanted cells and the host. We used adipose-derived
    stromal vascular fraction (SVF) cells to vascularize a human liver cell (HepG2)
    implant. We hypothesized that the SVF cells would form a functional microcirculation
    via vascular assembly and inosculation with the host vasculature. Initially, we
    assessed the extent and character of neovasculatures formed by freshly isolated
    and cultured SVF cells and found that freshly isolated cells have a higher vascularization
    potential. Generation of a 3D implant containing fresh SVF and HepG2 cells formed
    a tissue in which HepG2 cells were entwined with a network of microvessels. Implanted
    HepG2 cells sequestered labeled LDL delivered by systemic intravascular injection
    only in SVF-vascularized implants demonstrating that SVF cell-derived vasculatures
    can effectively integrate with host vessels and interface with parenchymal cells
    to form a functional tissue mimic. '
- source_sentence: Exosomes as drug delivery systems for gastrointestinal cancers
  sentences:
  - Gastrointestinal cancer is one of the most common malignancies with relatively
    high morbidity and mortality. Exosomes are nanosized extracellular vesicles derived
    from most cells and widely distributed in body fluids. They are natural endogenous
    nanocarriers with low immunogenicity, high biocompatibility, and natural targeting,
    and can transport lipids, proteins, DNA, and RNA. Exosomes contain DNA, RNA, proteins,
    lipids, and other bioactive components, which can play a role in information transmission
    and regulation of cellular physiological and pathological processes during the
    progression of gastrointestinal cancer. In this paper, the role of exosomes in
    gastrointestinal cancers is briefly reviewed, with emphasis on the application
    of exosomes as drug delivery systems for gastrointestinal cancers. Finally, the
    challenges faced by exosome-based drug delivery systems are discussed.
  - Background In the myocardium, pericytes are often confused with other interstitial
    cell types, such as fibroblasts. The lack of well-characterized and specific tools
    for identification, lineage tracing, and conditional targeting of myocardial pericytes
    has hampered studies on their role in heart disease. In the current study, we
    characterize and validate specific and reliable strategies for labeling and targeting
    of cardiac pericytes. Methods and Results Using the neuron-glial antigen 2 (NG2)
  - Exosomes are small extracellular vesicles with diameters of 30-150 nm. In both
    physiological and pathological conditions, nearly all types of cells can release
    exosomes, which play important roles in cell communication and epigenetic regulation
    by transporting crucial protein and genetic materials such as miRNA, mRNA, and
    DNA. Consequently, exosome-based disease diagnosis and therapeutic methods have
    been intensively investigated. However, as in any natural science field, the in-depth
    investigation of exosomes relies heavily on technological advances. Historically,
    the two main technical hindrances that have restricted the basic and applied researches
    of exosomes include, first, how to simplify the extraction and improve the yield
    of exosomes and, second, how to effectively distinguish exosomes from other extracellular
    vesicles, especially functional microvesicles. Over the past few decades, although
    a standardized exosome isolation method has still not become available, a number
    of techniques have been established through exploration of the biochemical and
    physicochemical features of exosomes. In this work, by comprehensively analyzing
    the progresses in exosome separation strategies, we provide a panoramic view of
    current exosome isolation techniques, providing perspectives toward the development
    of novel approaches for high-efficient exosome isolation from various types of
    biological matrices. In addition, from the perspective of exosome-based diagnosis
    and therapeutics, we emphasize the issue of quantitative exosome and microvesicle
    separation.
- source_sentence: Comparison of pesticide active substances in conventional agriculture
    and organic agriculture in Europe
  sentences:
  - Total concentrations of metals in soil are poor predictors of toxicity. In the
    last decade, considerable effort has been made to demonstrate how metal toxicity
    is affected by the abiotic properties of soil. Here this information is collated
    and shows how these data have been used in the European Union for defining predicted-no-effect
    concentrations (PNECs) of Cd, Cu, Co, Ni, Pb, and Zn in soil. Bioavailability
    models have been calibrated using data from more than 500 new chronic toxicity
    tests in soils amended with soluble metal salts, in experimentally aged soils,
    and in field-contaminated soils. In general, soil pH was a good predictor of metal
    solubility but a poor predictor of metal toxicity across soils. Toxicity thresholds
    based on the free metal ion activity were generally more variable than those expressed
    on total soil metal, which can be explained, but not predicted, using the concept
    of the biotic ligand model. The toxicity thresholds based on total soil metal
    concentrations rise almost proportionally to the effective cation exchange capacity
    of soil. Total soil metal concentrations yielding 10% inhibition in freshly amended
    soils were up to 100-fold smaller (median 3.4-fold, n = 110 comparative tests)
    than those in corresponding aged soils or field-contaminated soils. The change
    in isotopically exchangeable metal in soil proved to be a conservative estimate
    of the change in toxicity upon aging. The PNEC values for specific soil types
    were calculated using this information. The corrections for aging and for modifying
    effects of soil properties in metal-salt-amended soils are shown to be the main
    factors by which PNEC values rise above the natural background range.
  - There is much debate about whether the (mostly synthetic) pesticide active substances
    (AS) in conventional agriculture have different non-target effects than the natural
    AS in organic agriculture. We evaluated the official EU pesticide database to
    compare 256 AS that may only be used on conventional farmland with 134 AS that
    are permitted on organic farmland. As a benchmark, we used (i) the hazard classifications
    of the Globally Harmonized System (GHS), and (ii) the dietary and occupational
    health-based guidance values, which were established in the authorization procedure.
    Our comparison showed that 55% of the AS used only in conventional agriculture
    contained health or environmental hazard statements, but only 3% did of the AS
    authorized for organic agriculture. Warnings about possible harm to the unborn
    child, suspected carcinogenicity, or acute lethal effects were found in 16% of
    the AS used in conventional agriculture, but none were found in organic agriculture.
    Furthermore, the establishment of health-based guidance values for dietary and
    non-dietary exposures were relevant by the European authorities for 93% of conventional
    AS, but only for 7% of organic AS. We, therefore, encourage policies and strategies
    to reduce the use and risk of pesticides, and to strengthen organic farming in
    order to protect biodiversity and maintain food security.
  - Herpes simplex virus 1 (HSV-1) encodes Us3 protein kinase, which is critical for
    viral pathogenicity in both mouse peripheral sites (e.g., eyes and vaginas) and
    in the central nervous systems (CNS) of mice after intracranial and peripheral
    inoculations, respectively. Whereas some Us3 substrates involved in Us3 pathogenicity
    in peripheral sites have been reported, those involved in Us3 pathogenicity in
    the CNS remain to be identified. We recently reported that Us3 phosphorylated
    HSV-1 dUTPase (vdUTPase) at serine 187 (Ser-187) in infected cells, and this phosphorylation
    promoted viral replication by regulating optimal enzymatic activity of vdUTPase.
    In the present study, we show that the replacement of vdUTPase Ser-187 by alanine
    (S187A) significantly reduced viral replication and virulence in the CNS of mice
    following intracranial inoculation and that the phosphomimetic substitution at
    vdUTPase Ser-187 in part restored the wild-type viral replication and virulence.
    Interestingly, the S187A mutation in vdUTPase had no effect on viral replication
    and pathogenic effects in the eyes and vaginas of mice after ocular and vaginal
    inoculation, respectively. Similarly, the enzyme-dead mutation in vdUTPase significantly
    reduced viral replication and virulence in the CNS of mice after intracranial
    inoculation, whereas the mutation had no effect on viral replication and pathogenic
    effects in the eyes and vaginas of mice after ocular and vaginal inoculation,
    respectively. These observations suggested that vdUTPase was one of the Us3 substrates
    responsible for Us3 pathogenicity in the CNS and that the CNS-specific virulence
    of HSV-1 involved strict regulation of vdUTPase activity by Us3 phosphorylation.
- source_sentence: Load-dependent detachment and reattachment kinetics of kinesin-1,
    -2 and 3 motors
  sentences:
  - Bidirectional cargo transport by kinesin and dynein is essential for cell viability
    and defects are linked to neurodegenerative diseases. Computational modeling suggests
    that the load-dependent off-rate is the strongest determinant of which motor 'wins'
    a kinesin-dynein tug-of-war, and optical tweezer experiments find that the load-dependent
    detachment sensitivity of transport kinesins is kinesin-3 > kinesin-2 > kinesin-1.
    However, in reconstituted kinesin-dynein pairs vitro, all three kinesin families
    compete nearly equally well against dynein. Modeling and experiments have confirmed
    that vertical forces inherent to the large trapping beads enhance kinesin-1 dissociation
    rates. In vivo, vertical forces are expected to range from negligible to dominant,
    depending on cargo and microtubule geometries. To investigate the detachment and
    reattachment kinetics of kinesin-1, 2 and 3 motors against loads oriented parallel
    to the microtubule, we created a DNA tensiometer comprising a DNA entropic spring
    attached to the microtubule on one end and a motor on the other. Kinesin dissociation
    rates at stall were slower than detachment rates during unloaded runs, and the
    complex reattachment kinetics were consistent with a weakly-bound 'slip' state
    preceding detachment. Kinesin-3 behaviors under load suggested that long KIF1A
    run lengths result from the concatenation of multiple short runs connected by
    diffusive episodes. Stochastic simulations were able to recapitulate the load-dependent
    detachment and reattachment kinetics for all three motors and provide direct comparison
    of key transition rates between families. These results provide insight into how
    kinesin-1, -2 and -3 families transport cargo in complex cellular geometries and
    compete against dynein during bidirectional transport.
  - 'AP-1 and AP-2 adaptor protein (AP) complexes mediate clathrin-dependent trafficking
    at the trans-Golgi network (TGN) and the plasma membrane, respectively. Whereas
    AP-1 is required for trafficking to plasma membrane and vacuoles, AP-2 mediates
    endocytosis. These AP complexes consist of four subunits (adaptins): two large
    subunits (β1 and γ for AP-1 and β2 and α for AP-2), a medium subunit μ, and a
    small subunit σ. In general, adaptins are unique to each AP complex, with the
    exception of β subunits that are shared by AP-1 and AP-2 in some invertebrates.
    Here, we show that the two putative Arabidopsis thaliana AP1/2β adaptins co-assemble
    with both AP-1 and AP-2 subunits and regulate exocytosis and endocytosis in root
    cells, consistent with their dual localization at the TGN and plasma membrane.
    Deletion of both β adaptins is lethal in plants. We identified a critical role
    of β adaptins in pollen wall formation and reproduction, involving the regulation
    of membrane trafficking in the tapetum and pollen germination. In tapetal cells,
    β adaptins localize almost exclusively to the TGN and mediate exocytosis of the
    plasma membrane transporters such as ATP-binding cassette (ABC)G9 and ABCG16.
    This study highlights the essential role of AP1/2β adaptins in plants and their
    specialized roles in specific cell types.'
  - A single kinesin molecule can move "processively" along a microtubule for more
    than 1 micrometer before detaching from it. The prevailing explanation for this
    processive movement is the "walking model," which envisions that each of two motor
    domains (heads) of the kinesin molecule binds coordinately to the microtubule.
    This implies that each kinesin molecule must have two heads to "walk" and that
    a single-headed kinesin could not move processively. Here, a motor-domain construct
    of KIF1A, a single-headed kinesin superfamily protein, was shown to move processively
    along the microtubule for more than 1 micrometer. The movement along the microtubules
    was stochastic and fitted a biased Brownian-movement model.
- source_sentence: Phylogenetic analysis of mitochondrial genes in Macquarie perch
    from three river basins
  sentences:
  - Sedentary behavior is an emerging risk factor for cardiovascular disease (CVD)
    and may be particularly relevant to the cardiovascular health of older adults.
    This scoping review describes the existing literature examining the prevalence
    of sedentary time in older adults with CVD and the association of sedentary behavior
    with cardiovascular risk in older adults. We found that older adults with CVD
    spend >75 % of their waking day sedentary, and that sedentary time is higher among
    older adults with CVD than among older adults without CVD. High sedentary behavior
    is consistently associated with worse cardiac lipid profiles and increased cardiac
    risk scores in older adults; the associations of sedentary behavior with blood
    pressure, CVD incidence, and CVD-related mortality among older adults are less
    clear. Future research with larger sample sizes using validated methods to measure
    sedentary behavior are needed to clarify the association between sedentary behavior
    and cardiovascular outcomes in older adults.
  - An improved Bayesian method is presented for estimating phylogenetic trees using
    DNA sequence data. The birth-death process with species sampling is used to specify
    the prior distribution of phylogenies and ancestral speciation times, and the
    posterior probabilities of phylogenies are used to estimate the maximum posterior
    probability (MAP) tree. Monte Carlo integration is used to integrate over the
    ancestral speciation times for particular trees. A Markov Chain Monte Carlo method
    is used to generate the set of trees with the highest posterior probabilities.
    Methods are described for an empirical Bayesian analysis, in which estimates of
    the speciation and extinction rates are used in calculating the posterior probabilities,
    and a hierarchical Bayesian analysis, in which these parameters are removed from
    the model by an additional integration. The Markov Chain Monte Carlo method avoids
    the requirement of our earlier method for calculating MAP trees to sum over all
    possible topologies (which limited the number of taxa in an analysis to about
    five). The methods are applied to analyze DNA sequences for nine species of primates,
    and the MAP tree, which is identical to a maximum-likelihood estimate of topology,
    has a probability of approximately 95%.
  - 'Genetic variation in mitochondrial genes could underlie metabolic adaptations
    because mitochondrially encoded proteins are directly involved in a pathway supplying
    energy to metabolism. Macquarie perch from river basins exposed to different climates
    differ in size and growth rate, suggesting potential presence of adaptive metabolic
    differences. We used complete mitochondrial genome sequences to build a phylogeny,
    estimate lineage divergence times and identify signatures of purifying and positive
    selection acting on mitochondrial genes for 25 Macquarie perch from three basins:
    Murray-Darling Basin (MDB), Hawkesbury-Nepean Basin (HNB) and Shoalhaven Basin
    (SB). Phylogenetic analysis resolved basin-level clades, supporting incipient
    speciation previously inferred from differentiation in allozymes, microsatellites
    and mitochondrial control region. The estimated time of lineage divergence suggested
    an early- to mid-Pleistocene split between SB and the common ancestor of HNB+MDB,
    followed by mid-to-late Pleistocene splitting between HNB and MDB. These divergence
    estimates are more recent than previous ones. Our analyses suggested that evolutionary
    drivers differed between inland MDB and coastal HNB. In the cooler and more climatically
    variable MDB, mitogenomes evolved under strong purifying selection, whereas in
    the warmer and more climatically stable HNB, purifying selection was relaxed.
    Evidence for relaxed selection in the HNB includes elevated transfer RNA and 16S
    ribosomal RNA polymorphism, presence of potentially mildly deleterious mutations
    and a codon (ATP6'
pipeline_tag: sentence-similarity
library_name: sentence-transformers
---

# SentenceTransformer based on thenlper/gte-base

This is a [sentence-transformers](https://www.SBERT.net) model finetuned from [thenlper/gte-base](https://huggingface.co/thenlper/gte-base). It maps sentences & paragraphs to a 768-dimensional dense vector space and can be used for semantic textual similarity, semantic search, paraphrase mining, text classification, clustering, and more.

## Model Details

### Model Description
- **Model Type:** Sentence Transformer
- **Base model:** [thenlper/gte-base](https://huggingface.co/thenlper/gte-base) <!-- at revision c078288308d8dee004ab72c6191778064285ec0c -->
- **Maximum Sequence Length:** 512 tokens
- **Output Dimensionality:** 768 dimensions
- **Similarity Function:** Cosine Similarity
<!-- - **Training Dataset:** Unknown -->
<!-- - **Language:** Unknown -->
<!-- - **License:** Unknown -->

### Model Sources

- **Documentation:** [Sentence Transformers Documentation](https://sbert.net)
- **Repository:** [Sentence Transformers on GitHub](https://github.com/UKPLab/sentence-transformers)
- **Hugging Face:** [Sentence Transformers on Hugging Face](https://huggingface.co/models?library=sentence-transformers)

### Full Model Architecture

```
SentenceTransformer(
  (0): Transformer({'max_seq_length': 512, 'do_lower_case': False, 'architecture': 'BertModel'})
  (1): Pooling({'word_embedding_dimension': 768, 'pooling_mode_cls_token': False, 'pooling_mode_mean_tokens': True, 'pooling_mode_max_tokens': False, 'pooling_mode_mean_sqrt_len_tokens': False, 'pooling_mode_weightedmean_tokens': False, 'pooling_mode_lasttoken': False, 'include_prompt': True})
  (2): Normalize()
)
```

## Usage

### Direct Usage (Sentence Transformers)

First install the Sentence Transformers library:

```bash
pip install -U sentence-transformers
```

Then you can load this model and run inference.
```python
from sentence_transformers import SentenceTransformer

# Download from the 🤗 Hub
model = SentenceTransformer("sentence_transformers_model_id")
# Run inference
sentences = [
    'Phylogenetic analysis of mitochondrial genes in Macquarie perch from three river basins',
    'Genetic variation in mitochondrial genes could underlie metabolic adaptations because mitochondrially encoded proteins are directly involved in a pathway supplying energy to metabolism. Macquarie perch from river basins exposed to different climates differ in size and growth rate, suggesting potential presence of adaptive metabolic differences. We used complete mitochondrial genome sequences to build a phylogeny, estimate lineage divergence times and identify signatures of purifying and positive selection acting on mitochondrial genes for 25 Macquarie perch from three basins: Murray-Darling Basin (MDB), Hawkesbury-Nepean Basin (HNB) and Shoalhaven Basin (SB). Phylogenetic analysis resolved basin-level clades, supporting incipient speciation previously inferred from differentiation in allozymes, microsatellites and mitochondrial control region. The estimated time of lineage divergence suggested an early- to mid-Pleistocene split between SB and the common ancestor of HNB+MDB, followed by mid-to-late Pleistocene splitting between HNB and MDB. These divergence estimates are more recent than previous ones. Our analyses suggested that evolutionary drivers differed between inland MDB and coastal HNB. In the cooler and more climatically variable MDB, mitogenomes evolved under strong purifying selection, whereas in the warmer and more climatically stable HNB, purifying selection was relaxed. Evidence for relaxed selection in the HNB includes elevated transfer RNA and 16S ribosomal RNA polymorphism, presence of potentially mildly deleterious mutations and a codon (ATP6',
    'An improved Bayesian method is presented for estimating phylogenetic trees using DNA sequence data. The birth-death process with species sampling is used to specify the prior distribution of phylogenies and ancestral speciation times, and the posterior probabilities of phylogenies are used to estimate the maximum posterior probability (MAP) tree. Monte Carlo integration is used to integrate over the ancestral speciation times for particular trees. A Markov Chain Monte Carlo method is used to generate the set of trees with the highest posterior probabilities. Methods are described for an empirical Bayesian analysis, in which estimates of the speciation and extinction rates are used in calculating the posterior probabilities, and a hierarchical Bayesian analysis, in which these parameters are removed from the model by an additional integration. The Markov Chain Monte Carlo method avoids the requirement of our earlier method for calculating MAP trees to sum over all possible topologies (which limited the number of taxa in an analysis to about five). The methods are applied to analyze DNA sequences for nine species of primates, and the MAP tree, which is identical to a maximum-likelihood estimate of topology, has a probability of approximately 95%.',
]
embeddings = model.encode(sentences)
print(embeddings.shape)
# [3, 768]

# Get the similarity scores for the embeddings
similarities = model.similarity(embeddings, embeddings)
print(similarities)
# tensor([[1.0000, 0.9449, 0.8056],
#         [0.9449, 1.0000, 0.7868],
#         [0.8056, 0.7868, 1.0000]])
```

<!--
### Direct Usage (Transformers)

<details><summary>Click to see the direct usage in Transformers</summary>

</details>
-->

<!--
### Downstream Usage (Sentence Transformers)

You can finetune this model on your own dataset.

<details><summary>Click to expand</summary>

</details>
-->

<!--
### Out-of-Scope Use

*List how the model may foreseeably be misused and address what users ought not to do with the model.*
-->

<!--
## Bias, Risks and Limitations

*What are the known or foreseeable issues stemming from this model? You could also flag here known failure cases or weaknesses of the model.*
-->

<!--
### Recommendations

*What are recommendations with respect to the foreseeable issues? For example, filtering explicit content.*
-->

## Training Details

### Training Dataset

#### Unnamed Dataset

* Size: 95,253 training samples
* Columns: <code>sentence_0</code>, <code>sentence_1</code>, and <code>sentence_2</code>
* Approximate statistics based on the first 1000 samples:
  |         | sentence_0                                                                        | sentence_1                                                                          | sentence_2                                                                           |
  |:--------|:----------------------------------------------------------------------------------|:------------------------------------------------------------------------------------|:-------------------------------------------------------------------------------------|
  | type    | string                                                                            | string                                                                              | string                                                                               |
  | details | <ul><li>min: 6 tokens</li><li>mean: 19.51 tokens</li><li>max: 56 tokens</li></ul> | <ul><li>min: 3 tokens</li><li>mean: 223.97 tokens</li><li>max: 512 tokens</li></ul> | <ul><li>min: 51 tokens</li><li>mean: 309.24 tokens</li><li>max: 512 tokens</li></ul> |
* Samples:
  | sentence_0                                                                  | sentence_1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | sentence_2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
  |:----------------------------------------------------------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
  | <code>Sox5 modulates the activity of Sox10 in the melanocyte lineage</code> | <code>The transcription factor Sox5 has previously been shown in chicken to be expressed in early neural crest cells and neural crest-derived peripheral glia. Here, we show in mouse that Sox5 expression also continues after neural crest specification in the melanocyte lineage. Despite its continued expression, Sox5 has little impact on melanocyte development on its own as generation of melanoblasts and melanocytes is unaltered in Sox5-deficient mice. Loss of Sox5, however, partially rescued the strongly reduced melanoblast generation and marker gene expression in Sox10 heterozygous mice arguing that Sox5 functions in the melanocyte lineage by modulating Sox10 activity. This modulatory activity involved Sox5 binding and recruitment of CtBP2 and HDAC1 to the regulatory regions of melanocytic Sox10 target genes and direct inhibition of Sox10-dependent promoter activation. Both binding site competition and recruitment of corepressors thus help Sox5 to modulate the activity of Sox10 in the melano...</code> | <code>Transcripts for a new form of Sox5, called L-Sox5, and Sox6 are coexpressed with Sox9 in all chondrogenic sites of mouse embryos. A coiled-coil domain located in the N-terminal part of L-Sox5, and absent in Sox5, showed >90% identity with a similar domain in Sox6 and mediated homodimerization and heterodimerization with Sox6. Dimerization of L-Sox5/Sox6 greatly increased efficiency of binding of the two Sox proteins to DNA containing adjacent HMG sites. L-Sox5, Sox6 and Sox9 cooperatively activated expression of the chondrocyte differentiation marker Col2a1 in 10T1/2 and MC615 cells. A 48 bp chondrocyte-specific enhancer in this gene, which contains several HMG-like sites that are necessary for enhancer activity, bound the three Sox proteins and was cooperatively activated by the three Sox proteins in non-chondrogenic cells. Our data suggest that L-Sox5/Sox6 and Sox9, which belong to two different classes of Sox transcription factors, cooperate with each other in expression of Col2a1 a...</code> |
  | <code>are asgard archaea related to eukaryotes</code>                       | <code>Asgard archaea are considered to be the closest known relatives of eukaryotes. Their genomes contain hundreds of eukaryotic signature proteins (ESPs), which inspired hypotheses on the evolution of the eukaryotic cell</code>                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | <code>Eukaryotes evolved from a symbiosis involving alphaproteobacteria and archaea phylogenetically nested within the Asgard clade. Two recent studies explore the metabolic capabilities of Asgard lineages, supporting refined symbiotic metabolic interactions that might have operated at the dawn of eukaryogenesis.</code>                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
  | <code>Fanconi Anemia in Pediatric Medulloblastoma and Fanconi Anemia</code> | <code>The outcome of children with medulloblastoma (MB) and Fanconi Anemia (FA), an inherited DNA repair deficiency, has not been described systematically. Treatment is complicated by high vulnerability to treatment-associated side effects, yet structured data are lacking. This study aims to give a comprehensive overview of clinical and molecular characteristics of pediatric FA MB patients.</code>                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | <code>The Sonic Hedgehog (SHH) signaling pathway is indispensable for development, and functions to activate a transcriptional program modulated by the GLI transcription factors. Here, we report that loss of a regulator of the SHH pathway, Suppressor of Fused (Sufu), resulted in early embryonic lethality in the mouse similar to inactivation of another SHH regulator, Patched1 (Ptch1). In contrast to Ptch1+/- mice, Sufu+/- mice were not tumor prone. However, in conjunction with p53 loss, Sufu+/- animals developed tumors including medulloblastoma and rhabdomyosarcoma. Tumors present in Sufu+/-p53-/- animals resulted from Sufu loss of heterozygosity. Sufu+/-p53-/- medulloblastomas also expressed a signature gene expression profile typical of aberrant SHH signaling, including upregulation of N-myc, Sfrp1, Ptch2 and cyclin D1. Finally, the Smoothened inhibitor, hedgehog antagonist, did not block growth of tumors arising from Sufu inactivation. These data demonstrate that Sufu is essential for deve...</code> |
* Loss: [<code>MultipleNegativesRankingLoss</code>](https://sbert.net/docs/package_reference/sentence_transformer/losses.html#multiplenegativesrankingloss) with these parameters:
  ```json
  {
      "scale": 20.0,
      "similarity_fct": "cos_sim"
  }
  ```

### Training Hyperparameters
#### Non-Default Hyperparameters

- `per_device_train_batch_size`: 16
- `per_device_eval_batch_size`: 16
- `num_train_epochs`: 1
- `max_steps`: 20
- `multi_dataset_batch_sampler`: round_robin

#### All Hyperparameters
<details><summary>Click to expand</summary>

- `overwrite_output_dir`: False
- `do_predict`: False
- `eval_strategy`: no
- `prediction_loss_only`: True
- `per_device_train_batch_size`: 16
- `per_device_eval_batch_size`: 16
- `per_gpu_train_batch_size`: None
- `per_gpu_eval_batch_size`: None
- `gradient_accumulation_steps`: 1
- `eval_accumulation_steps`: None
- `torch_empty_cache_steps`: None
- `learning_rate`: 5e-05
- `weight_decay`: 0.0
- `adam_beta1`: 0.9
- `adam_beta2`: 0.999
- `adam_epsilon`: 1e-08
- `max_grad_norm`: 1
- `num_train_epochs`: 1
- `max_steps`: 20
- `lr_scheduler_type`: linear
- `lr_scheduler_kwargs`: {}
- `warmup_ratio`: 0.0
- `warmup_steps`: 0
- `log_level`: passive
- `log_level_replica`: warning
- `log_on_each_node`: True
- `logging_nan_inf_filter`: True
- `save_safetensors`: True
- `save_on_each_node`: False
- `save_only_model`: False
- `restore_callback_states_from_checkpoint`: False
- `no_cuda`: False
- `use_cpu`: False
- `use_mps_device`: False
- `seed`: 42
- `data_seed`: None
- `jit_mode_eval`: False
- `use_ipex`: False
- `bf16`: False
- `fp16`: False
- `fp16_opt_level`: O1
- `half_precision_backend`: auto
- `bf16_full_eval`: False
- `fp16_full_eval`: False
- `tf32`: None
- `local_rank`: 0
- `ddp_backend`: None
- `tpu_num_cores`: None
- `tpu_metrics_debug`: False
- `debug`: []
- `dataloader_drop_last`: False
- `dataloader_num_workers`: 0
- `dataloader_prefetch_factor`: None
- `past_index`: -1
- `disable_tqdm`: False
- `remove_unused_columns`: True
- `label_names`: None
- `load_best_model_at_end`: False
- `ignore_data_skip`: False
- `fsdp`: []
- `fsdp_min_num_params`: 0
- `fsdp_config`: {'min_num_params': 0, 'xla': False, 'xla_fsdp_v2': False, 'xla_fsdp_grad_ckpt': False}
- `fsdp_transformer_layer_cls_to_wrap`: None
- `accelerator_config`: {'split_batches': False, 'dispatch_batches': None, 'even_batches': True, 'use_seedable_sampler': True, 'non_blocking': False, 'gradient_accumulation_kwargs': None}
- `deepspeed`: None
- `label_smoothing_factor`: 0.0
- `optim`: adamw_torch
- `optim_args`: None
- `adafactor`: False
- `group_by_length`: False
- `length_column_name`: length
- `ddp_find_unused_parameters`: None
- `ddp_bucket_cap_mb`: None
- `ddp_broadcast_buffers`: False
- `dataloader_pin_memory`: True
- `dataloader_persistent_workers`: False
- `skip_memory_metrics`: True
- `use_legacy_prediction_loop`: False
- `push_to_hub`: False
- `resume_from_checkpoint`: None
- `hub_model_id`: None
- `hub_strategy`: every_save
- `hub_private_repo`: None
- `hub_always_push`: False
- `gradient_checkpointing`: False
- `gradient_checkpointing_kwargs`: None
- `include_inputs_for_metrics`: False
- `include_for_metrics`: []
- `eval_do_concat_batches`: True
- `fp16_backend`: auto
- `push_to_hub_model_id`: None
- `push_to_hub_organization`: None
- `mp_parameters`: 
- `auto_find_batch_size`: False
- `full_determinism`: False
- `torchdynamo`: None
- `ray_scope`: last
- `ddp_timeout`: 1800
- `torch_compile`: False
- `torch_compile_backend`: None
- `torch_compile_mode`: None
- `include_tokens_per_second`: False
- `include_num_input_tokens_seen`: False
- `neftune_noise_alpha`: None
- `optim_target_modules`: None
- `batch_eval_metrics`: False
- `eval_on_start`: False
- `use_liger_kernel`: False
- `eval_use_gather_object`: False
- `average_tokens_across_devices`: False
- `prompts`: None
- `batch_sampler`: batch_sampler
- `multi_dataset_batch_sampler`: round_robin
- `router_mapping`: {}
- `learning_rate_mapping`: {}

</details>

### Framework Versions
- Python: 3.10.14
- Sentence Transformers: 5.0.0
- Transformers: 4.52.4
- PyTorch: 2.6.0+cu124
- Accelerate: 1.6.0
- Datasets: 3.6.0
- Tokenizers: 0.21.1

## Citation

### BibTeX

#### Sentence Transformers
```bibtex
@inproceedings{reimers-2019-sentence-bert,
    title = "Sentence-BERT: Sentence Embeddings using Siamese BERT-Networks",
    author = "Reimers, Nils and Gurevych, Iryna",
    booktitle = "Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing",
    month = "11",
    year = "2019",
    publisher = "Association for Computational Linguistics",
    url = "https://arxiv.org/abs/1908.10084",
}
```

#### MultipleNegativesRankingLoss
```bibtex
@misc{henderson2017efficient,
    title={Efficient Natural Language Response Suggestion for Smart Reply},
    author={Matthew Henderson and Rami Al-Rfou and Brian Strope and Yun-hsuan Sung and Laszlo Lukacs and Ruiqi Guo and Sanjiv Kumar and Balint Miklos and Ray Kurzweil},
    year={2017},
    eprint={1705.00652},
    archivePrefix={arXiv},
    primaryClass={cs.CL}
}
```

<!--
## Glossary

*Clearly define terms in order to be accessible across audiences.*
-->

<!--
## Model Card Authors

*Lists the people who create the model card, providing recognition and accountability for the detailed work that goes into its construction.*
-->

<!--
## Model Card Contact

*Provides a way for people who have updates to the Model Card, suggestions, or questions, to contact the Model Card authors.*
-->